Special dry powder type ecologic shell powder interior wall coating for children's rooms

The invention discloses a special dry powder type ecologic shell powder interior wall coating for children's rooms. The special environmentally-friendly bacteriostasis and sterilization interior wall coating having very effective bacteriostasis and sterilization functions is obtained by using natural shell powder as a basic material, and adding nanometer titanium dioxide, nanometer tourmalinite powder and a talcum powder filler. The above powder is mixed with 80-90% of water, 5-10% of polyvinyl alcohol, 0.2-5% of cellulose and 1-10% of composite glue prepared by heating and fusing modified starch to obtain the ecologic environmentally-friendly coating having air purification, bacteriostasis and sterilization effects. The coating can release oxonium ions for a long term, can adsorb and decompose toxic and harmful gases in air, and is simple to prepare and construct, and only the uniform mixing of the coating disclosed in the invention with the glue and a pigment is needed during construction ...

Moisture dispersion and environment friendly type nano structured construction paint and its producing technique

A water-dispersive environment-friendly nano paint for building is prepared from the water-dispersive environment-friendly dry oil or unsaturated fatty acid modified polyester (methyl) acrylate or organosilicon-polyeste (methyl) acrylate nano emulsion, pigment, filler, drying agent, thickening agent, disperser, etc through dispersing and grinding. Its advantages are no poison and pollution, high drying speed and adhesion, and high resistance to brushing and dirt.

Jute fiber reinforced polyester recycled material and preparation process thereof

The invention discloses a jute fiber reinforced polyester recycled material and a preparation process thereof. Jute fibers are natural jute fibers, and the polyester recycled material mainly refers to polyethylene terephthalate used for manufacturing automotive interior nonwoven fabric. The jute fibers are added into saturated solution of sodium nitrite to be soaked for 48 hours, then completely washed with distilled water, dried, placed into solution of sodium hydroxide to be soaked for 48 hours, completely washed with distilled water, soaked in acetic acid at concentration of 1 percent to neutralize excessive alkali, washed with distilled water, dried, added into glacial acetic acid to be soaked for 1 hour, and reacted with absolute acetic acid in the presence of a sulfuric acid catalyst for 10 minutes to form amidated jute fibers; and the polyester recycled material is ground, heated to be melted and added with the polyester recycled material, the mixture is uniformly stirred, and extruded ...

Co-injection molding apparatus

The invention discloses a simultaneous co-injection forming device, belonging to the field of plastic product forming technology. The device is characterized in that a middle sliding block and a cylinder of the device are connected with each other; the middle sliding block can reciprocate with the cylinder; a runner on the middle sliding block can be communicated with an internal layer resin runner on a positioning plate and a central column; the runner on the middle sliding block can be communicated with an external layer resin runner on the positioning plate and a clapboard; the resin which enters the external resin runner passes through a spiral concave trough which is changed from depth to shallowness to flow forwards by uniformly wrapping the central column, and finally flow out from a nozzle outlet by wrapping the internal layer resin, thus realizing the co-injection forming of two resins at the same time. The simultaneous co-injection forming device has the effects and the benefits ...

Bridge steel member surface pretreatment repairing device based on chromium-free zinc-aluminum paint coating

The invention discloses a bridge steel member surface pretreatment repair device based on a chromium-free zinc-aluminum lacquer coating, and relates to the technical field of metal plate surface pretreatment repair, the device comprises a main body supporting plate, an auxiliary bearing plate is fixedly connected to the bottom end of the main body supporting plate, and conveying wheels are arranged on the two sides of the inner wall of the main body supporting plate; a steel plate is arranged between the two conveying wheels; through the arrangement of the column cavity and the first spring, the column cavity is inserted into the sand hole under the assistance of the first spring, compared with a manual searching mode, omission can be avoided to the maximum extent, the situation that the service life of the whole material is affected by unfound sand holes is prevented, meanwhile, repairing work after the sand holes are found is better facilitated, and the working efficiency is improved.

Dry powder type ecological shell powder environment-friendly composite coating with comprehensive functions

The invention discloses a dry powder type ecological shell powder environment-friendly composite coating with comprehensive functions. The shell powder is effectively loaded with nano titanium dioxide and nano zinc oxide and then combined with materials such as an adhesive; in the synthesis method, the shell powder-based nano composite powder is prepared by an in-situ synthesis method; nanoscale titanium dioxide and zinc oxide are directly generated in the micropores by taking the micropores in the natural shell powder as reaction points and introducing soluble titanate and zinc salt so as to effectively improve the load content of the functional nano particles and the binding capacity of the shell powder. The coating disclosed by the invention has the beneficial effects that the shell powder is used as the main film forming substance, and the functional materials, namely nano titanium dioxide and nano zinc oxide are effectively loaded through special chemical and physical methods, and ...

Plant fibre reinforced biodegradable film material and preparation thereof

The invention relates to a biodegradable thin-film material strengthened by plant fibers and a preparation method thereof. Raw materials and parts by weight thereof used are as follows: 20 parts to 45 parts of plant fibers, 30 parts to 50 parts of starch, 20 parts to 35 parts of vinyl monomers, 20 parts to 30 parts of biodegradable plastics, 10 parts to 15 parts of plasticizers, 3 parts to 5 parts of water and 0.5 part to 3 parts of heat stabilizers. The preparation method of the thin-film material comprises the steps: the plant fibers, starch, vinyl monomers and water of certain quantities are evenly mixed and radiated by a cobalt Gamma 60 source or an electron accelerator for 0.5kGy to 20kGy; the material after radiation is mixed with the biodegradable plastics, the plasticizers and theheat stabilizers; then a twin screw is used for preparing a thin-film special material; and finally the thin-film is formed by means of blow molding using a single screw. The completely biodegradablethin-film ...

Injection molding intelligent control apparatus

The invention discloses an injection forming intelligent control device, in particular to a melt filling intelligent control device used for injection forming processing, belonging to the field of plastic product forming technology. The melt filling intelligent control device is characterized in that the device comprises a material cylinder, a material hopper which is arranged on the upper part of the material cylinder, a heating coil which is wound on the material cylinder, a screw which is arranged inside the material cylinder and can rotate, a manifold, a plurality of valve devices, a sensor, a control unit and a die; the sensor which is arranged on the profile chamber edge can monitor the filling state of the profile chamber at any moment and transmit a signal to the control unit; the control unit emits a control signal to control the switches of all the valve devices, thus realizing the intellectualized control of the filling process; the valve device is provided with an electromagnetic-typed ...

Flexible, flame-retardant, waterproof and corrosion-resistant polymer shape memory material

A soft, flame-retarding, water-proof and anti-corrosion high-molecular shape-memorizing material is prepared from polyethylene, EVA, EPT rubber, silicone rubber, butanenitrile, flame retardant, zinc oxide, carbon black, TiO2 and triphenyl phosphite through proportional mixing and cross linking.

Improved MBR membrane bioreactor

The utility model relates to the technical field of sewage treatment equipment. The utility model relates to a membrane bioreactor, and particularly discloses an improved MBR membrane bioreactor witha good desilting effect. The aeration tank comprises a tank body, a water inlet pipe, a drain pipe, a diaphragm assembly and an aeration assembly, wherein the box body comprises a purification chamberand an activity chamber; the water inlet pipe is arranged at the bottom end of one side surface of the box body and communicates with the purification chamber; the drain pipe is arranged at the top end of the other side surface of the box body and communicates with the purifying chamber; drain pipe for draining purified water, the membrane assembly is accommodated in the purification chamber andcomprises a plurality of membranes which are arranged in a stacked manner; the annular side face of each membrane abuts against the inner surface of the box body. The aeration assembly comprises an aeration ...

Device for extracting humic acid from nanofiltration concentrated liquor of landfill leachate

The utility model discloses a device for extracting humic acid from nanofiltration concentrated liquor of landfill leachate and relates to the technical field of landfill leachate treatment. The device solves the problem that consumed electric quantity is large. Technical key points are that: the device is characterized by comprising a bracket, the system comprises an MBR system and a nanofiltration system, a nanofiltration pump is arranged in the nanofiltration system; wherein the output end of the MBR system is communicated with the input end of the nanofiltration system, the nanofiltrationsystem and the material membrane system are provided with a water delivery pipe, the water delivery pipe is provided with a booster pump, and two ends of the water delivery pipe are respectively communicated with the output end of the nanofiltration system and the input end of the material membrane system. The effect of reducing power consumption is achieved, and the advantage of small power consumption ...

Shell powder art coating preparation equipment capable of removing formaldehyde

The invention discloses shell powder art coating preparation equipment capable of removing formaldehyde, shell powder is screened through a screen, impurities contained in the shell powder can be removed, large-particle shell powder can also be screened and removed, and the quality of shell powder raw materials is guaranteed. According to the present invention, the coating does not contain formaldehyde and other harmful gases, and can be combined with the mesh polymer film-forming material to achieve the adsorption effect on the indoor formaldehyde and other harmful gases so as to avoid the harm of the formaldehyde and other harmful gases to the human body.

River ecosystem

The utility model discloses a riverway ecosystem and relates to the technical field of ecosystems. The riverway ecosystem solves the problem that the self-purification effect is poor. Technical key points are that: the device is characterized by comprising a bracket, water purification substrate, the water purification base body is provided with a shallow water planting groove, a deep water planting groove and a complex microbial inoculant breeding groove. Wherein the shallow water planting groove, the deep water planting groove and the complex microbial inoculant culture groove are sequentially arranged in the river flow direction, the shallow water planting groove is higher than the deep water planting groove, the deep water planting groove is higher than the complex microbial inoculantculture groove, aquatic plants are planted in the shallow water planting groove and the deep water planting groove, and a culture carrier is arranged in the complex microbial inoculant culture groove.By ...

Quickly molded polyurethane and hemp fiber composite plate based on HP-RTM (high pressure-resin transfer molding) technology

The invention discloses a quickly molded polyurethane and hemp fiber composite plate based on the HP-RTM (high pressure-resin transfer molding) technology. The problems caused by molding of a composite material according to the RTM technology are solved. The polyurethane hemp fiber composite plate is prepared from a polyurethane composition and a hemp fiber enhanced fabric according to the high pressure resin transfer molding preparation technology. The polyurethane composition is formed by mixing components A and B according to a proportion of (4:1) to (1:1); the component A is polyethylene glycol 600, and the component B is isocyanate. The preparation technology comprises the steps of (1) spraying a gel coat to the surface of an inner cavity of a mold; (2) putting the hemp fiber braided fabric into the preheated mold; (3) adjusting the polyurethane injection pressure to be 100-300 par; (4) keeping the pressure for 30-60 minutes, and solidifying and molding the plate. According to the ...

Method for mfg. heat shrinkable pipeline covering material using waste plastics

A thermoshrinking material for wrapping pipeline is prepared from waste plastics, LLDPE, EVA, EPT rubber, epoxy soybean oil, zinc stearate, carbon black, antioxidant 1010, flame-retarding agent FR-E,etc through mixing and cross linking.

Environment-friendly recyclable basalt fiber and fibrilia automobile door plate and preparation process thereof

The invention relates to an environment-friendly recyclable natural fiber automobile door plate which is formed by the steps of preparing a composite felt material by a core layer and a surface layer; and performing hot-press and forming. The natural fiber automobile door plate is characterized in that the core layer is prepared by mixing two kinds of natural fibers, namely a basalt fiber and fibrilia, and two kinds of chemical fibers, namely a polyster fiber and a polypropylene fiber, lapping and needling. The core layer comprises the following components in percentage by weight: 10 to 30 percent of basalt fiber, 10 to 30 percent of fibrilia, 20 to 30 percent of polyster fiber, and 30 to 40 percent of polypropylene fiber. The invention also provides a preparation process for the environment-friendly recyclable natural fiber automobile door plate. The environment-friendly recyclable natural fiber automobile door plate has the characteristics of low density, light mass, low cost, high intensity ...

Moisture dispersion and environment friendly type nano polymer emu son, its producing method and application

A water-dispersive environment-friendly nano-class polymer emulsion used in paint industry is prepared through preparing hydrophobic polymer, preparing hydrophilic (methyl) acrylate copolymer, proportionally mixing them together, removing organic solvent at 100-200 deg.C in vacuum condition, and adding the softened water containing pH regulator and Zuoxian liquid while stirring for reaction at 50-90 deg.C for 40-60 min. Its advantages are no poison and explosion danger, and high performance.

High-temp.-resistant hot-melt adhesive

A high-temp.-resistant hot-melt adhesive for electronic device is prepared from polyamide (55-70 wt.%), EVA (0-5 wt.%), rosin (7.5-10 wt.%), glyceride (7.5-10 wt.%), nano-Al2O3 (12-15 wt.%) nano zincoxide (3-5 wt.%) and nano magnesium oxide (0-3 wt.%). Its advantages are high working temp (130-150 deg.C) and no odour release.

Moisture dispersion and environment friendly type nano structured industry paint and its producing technique

A water-dispersive environment-friendly nano-class industrial paint is prepared from water-dispersive environment-friendly nano polymer emulsion, softened water, pigment, inertial and active antirustpigments, filler, drying agent and assistant through proportionally and sequentially mixing softened water, wetting agent, disperser, defoaming agent, anticorrosion agent, antimildew agent and pH value regulator, stirring, adding pigment slurry and polymer emulsion, stirring, adding filler, stirring, grinding, adding others, stirring and filtering. Its advantages are no poison and pollution, highsafety and excellent mechanical performance.

Integrative sewage treatment reactor device of good oxygen of inner loop anaerobism

The utility model provides an integrative sewage treatment reactor device of good oxygen of inner loop anaerobism, relates to sewage treatment plant technical field, and its structure includes inner loop anaerobic reaction zone and aerobic reaction zone. An integrative sewage treatment reactor device of good oxygen of inner loop anaerobism, anaerobic reaction zone includes two treatment regions, three -phase separator and vapour and liquid separator etc. Good oxygen aerated reactor district includes that the preaeration of intaking is distinguished, aeration systems becomes reconciled oxygen activated sludge reaction zone. The utility model discloses utilize inner loop anaerobism method and aerobic activated sludge process establish ties to handle high concentration sewage, realized the anaerobism self -loopa oxygen preaeration of becoming reconciled, reduce the anaerobism stirring oxygen aeration intensity of becoming reconciled, advantages such as having the efficient handling of ability ...

Multilayer hemp/carbon fiber composite board with hamburger structure and manufacturing process of multilayer hemp/carbon fiber composite board

The invention discloses a multilayer hemp/carbon fiber composite board with a hamburger structure, which has the purposes that the strength and the toughness of the composite board are improved through carbon fibers. According to the technical scheme, the composite board is prepared from a surface layer, a hemp/short carbon fiber felt layer, a carbon fiber cloth layer, a hemp/short carbon fiber felt layer and a bottom layer through a hot-mold-pressing process, wherein the surface layer and the bottom layer are formed by mixing, lapping and needling three chemical fibers namely polyester fiber, polypropylene fiber and spandex fiber respectively; each hemp/short carbon fiber felt layer is formed by mixing, lapping and needling four fibers namely short carbon fiber, hemp fiber, polyester fiber and polypropylene fiber; the carbon fiber cloth layer is single-layer knitted carbon fiber cloth subjected to surface oxidation modified treatment. The composite board is light in weight, extremely high ...

Self-moving advanced supporting equipment of heading machine

The invention relates to underground coal mine heading supporting equipment, in particular to self-moving advanced supporting equipment of a heading machine. The equipment comprises two groups of supports which are arranged back and forth, wherein a front support implements net installation by adopting a slewing beam to support an exposed top plate; a rear support is responsible for pushing the front support to move. According to the equipment, with hydraulic pressure as power, the supports can be self-moved; the slewing beam supports, manages and controls the top plate in advance; as the net installation is implemented by skilfully using the slewing beam, and then an anchor rod is stricken, the damage to the top plate is furthest decreased; the safety of operators is protected, the labour production rate is improved, and the physical labour of workers is decreased; the problems of low efficiency, bad safety reliability, great labour intensity of the workers and the like of an existing ...

Nanopowder composite polymer memory material

A nano-class composite high-molecular memory material is prepared from linear low-density polyethene, nano-class, metal oxides, inorganic nanoparticles, and assistant through mixing and cross-linking. Its contains LLDPE, EVA, CPE, EPR, silicone rubber, nano calcium carbonate, nano aluminium hydroxide, nano iron oxide, nano TiO2, nano zinc oxide, nano SiO2, carbon black, flame retardant FR-E, antioxidant 1010, and zinc stearate. Its advantages are high break-through voltage (more than 10KV) and good flexiblity.

Ozone generation device for chemical wastewater treatment

The utility model relates to the field of ozone sterilization. The ozone generation device for chemical wastewater treatment is long in service life. The ozone generator comprises a shell, an ozone excitation unit, an air inlet pipe, an exhaust pipe and a non-return unit, housing having a generating chamber, the ozone excitation unit is accommodated in the generation chamber and is used for beingelectrically connected with an external power supply; the ozone excitation unit is used for discharging and exciting oxygen in the generation chamber to form ozone; the air inlet pipe is located at one end of the shell and communicates with the generation chamber. The exhaust pipe is positioned at the other end of the shell and is communicated with the generation chamber; the exhaust pipe is usedfor conveying ozone to to-be-treated wastewater; the check unit comprises a check valve, a normally closed valve and a controller; wherein the check valve is installed at the output end of the exhaustpipe ...

Blow moulding shaping polymer material and its parison temperature distribution control method

An electrically conductive high-molecular material for blow moulding is prepared from general-purpose resin and electrically conductive filler. Its parison temp distribution controlling method features that an alternative electromagnetic field is externally applied to said parison for generating differnet eddy-type thermal effects at different positions of parison due to electromagnetic induction. It can greatly improving its forming properties.

Molecular self-assembly water-based industrial paint

The invention discloses a chemical product, in particular relates to molecular self-assembly water-based industrial paint. The industrial paint has the following main technical characteristics that the formula materials of the paint comprise acrylic epoxy polyester nanoemulsion, pigment filling, drier, a thickening agent and other auxiliary agents, wherein the formula materials of acrylic epoxy polyester nanoemulsion comprise adipate, phthalic anhydride, linseed oil fatty acid, epoxy resin E51, dimethylbenzene, butyle acetate, methacrylic acid, methyl methacrylate, butyl methacrylate, ethyl methacrylate, hydroxyethyl methacrylate, n-dodecyl sulfate, benzoperoxide, normal butanol and Zhuoxian liquid. The molecular self-assembly water-based industrial paint can eliminate the disadvantages oforganic solvent coatings including massive discharge of volatile substances, serious environmental pollution, waste of precious resources, and the like, and is mainly used in surface paint coating ofindustrial ...

Molding process for preparing plug-in units for car door trims by utilizing polymer-based bastose composite materials

The invention relates to a molding process for preparing plug-in units for car door trims by utilizing polymer-based bastose composite materials, and the molding process provided by the invention comprises the following steps: 1, uniformly mixing bastose, polypropylene fibers and polyster fibers by using a mixing machine; 2, paving the mixture obtained in the step 1 between a bastose carpet layer and a polypropylene carpet layer by using an air paving machine, and then needling the obtained product so as to form a sandwich-structured composite material carpet; and 3, paving a surface layer on the bastose composite material carpet, and then carrying out hot-forming on the obtained product. The molding process provided by the invention is a one-step hot-forming process, and in the process, the procedures of carrying out hot-pressing on the bastose carpet so as to form a sheet, then carrying out re-heating on the bastose sheet, combining the bastose sheet with the surface layer, and carrying ...

Carbon fiber and hemp fiber composite board with flame-retardant function and manufacturing process of carbon fiber and hemp fiber composite board

The invention discloses a carbon fiber and hemp fiber composite board with a flame-retardant function and a manufacturing process of the carbon fiber and hemp fiber composite board. The composite board consists of surface layers and a core layer, wherein each surface layer is made of flame-retardant polypropylene fiber and flame-retardant polyester fiber; the core layer is made of short carbon fiber, flame-retarded hemp fiber and the flame-retardant polypropylene fiber. The manufacturing process comprises the following steps: preparing the core layer, namely lapping and needling the short carbon fiber, the flame-retarded hemp fiber and the flame-retardant polypropylene fiber to prepare a hemp fiber/short carbon fiber composite felt material; preparing the surface layers, namely lapping and needling the flame-retardant polypropylene fibers and the flame-retardant polyester fibers to prepare a composite surface layer; manufacturing the composite board, namely attaching the two surface layers ...

Device for testing adhesive force of water-based zinc-aluminum coating of traffic metal component

The invention discloses a traffic metal component water-based zinc-aluminum coating adhesive force testing device, and relates to the technical field of coating adhesive force testing, the traffic metal component water-based zinc-aluminum coating adhesive force testing device comprises an outer frame, fixed sliding grooves are symmetrically and fixedly connected to the lower end of the inner wall of the outer frame, test plates are arranged in the fixed sliding grooves, and fastening knob bolts are arranged at the two ends of each fixed sliding groove; a main cavity is arranged above the testing plate and located in the outer frame, a sealing plate is slidably inserted into the main cavity, a cutting angle adjusting assembly is arranged on the outer side of the main cavity, a cutting pressure adjusting assembly is arranged in the main cavity, and the cutting angle adjusting assembly comprises a channel. Compared with the prior art in which a vertical scribing mode is adopted during manual ...

Polyethylene terephthalate/basalt fiber composite material and preparation method thereof

The invention discloses a polyethylene terephthalate (PET)/basalt fiber composite material and a preparation method thereof, the components of which comprise macromolecule polyester resin, basalt fiber, vinyl multi-functional monomer and composition processing aid. At the temperature of 220 DEG C to 280 DEG C, other components excluding basalt fiber are firstly melt and blended together by using a twin-screw and then continuous basalt fiber is added by a special material port after the melting of the materials. Finally PET/basalt fiber composite material is prepared by the irradiation to the blended material particles. The PET/basalt fiber composite material has good processing property and excellent mechanical property.

Moisture dispersion and environment friendly type nano polymer emulsion and its producing method

Moisture dispersion and environment friendly type nano structured carpentry paint and its producing technique

A water-dispersion environment-friendly nano paint for wooden furniture and articles is prepared from water-dispersive environment-friendly polyurethane (methyl) acrylate or dry oil modified polyurethane (methyl) acrylate nano polymer emulsion, pigment, filler, drying agent, and assistant through grinding and dispersing. Its advantages are no poison and pollution, high safety and drying speed, and excellent protecting performance.

Processing technology for manufacturing medical toilet by utilizing recovered fibrilia composite boards

The invention relates to a processing technology for recycling the conventional fibrilia composite boards, in particular to a processing technology for preparing a medical toilet by utilizing the recovery of fibrilia composite boards. The processing technology for preparing the medical toilet by utilizing the recovery of the fibrilia composite boards comprises the steps of: cutting up the fibrilia composite boards; heating and melting the cut fibrilia composite boards and performing extrusion granulation; and adding aggregates into an injection molding machine, and injecting into a product mould for molding. The processing technology has the advantages of rich resources, cheap recovery, low equipment investment, simple production technology and the like, and realizes environmental protection and resource regeneration.

Method for mfg. low pressure heat-shrinkable material using waste plastics

A low-pressure thermoshrinking material is prepared from waste plastics, LLDPE, EVA, EPT rubber, chlorosulfonated polyethylene, zinc stearate, carbon black, aluminium hydroxide, silane coupling agent, flame-retarding agent FR-E, antioxidant 1010 and light-resisting ageing agent Gw-540.1 through mixing and cross linking.

Dry powder type shell powder interior wall coating material and preparation method thereof

The invention relates to a dry powder type shell powder interior wall coating material which has the functions of adsorbing and decomposing harmful gas and peculiar smell, restraining bacteria, sterilizing and resisting static electricity and using shell powder, nanometer inorganic filler and high molecular powder materials as main components. The invention solves the defects of high cost, high energy consumption, pollution and incapability of purifying indoor harmful gas in the existing interior wall coating materials. The coating material uses natural or manually cultivated shell powder as basic materials; meanwhile, a certain quantity of nanometer titanium dioxide and nanometer electric stone powder radiated by cobalt-60 gamma ray and the high molecular powder materials are added; the weight percentages of all components are as follows: 30-60% of shell powder, 10-20% of calcined kaolin, 10-20% of heavy calcium, 10-20% of talcum powder, 1-5% of nanometer titanium dioxide, 1-5% of nanometer ...

Composite fiber automobile interior board and production method thereof

The invention relates to a composite fiber automobile interior board and a production method thereof. The automobile interior board comprises a base layer and a non-woven or woven surface layer which is laminated on the at least one surface of the base layer, wherein the base layer consists of the following composite fibers: first fibers, namely polylactic acid fibers, second fibers, namely bastose selected from at least one of jute fibers, sisal fibers, ramie fibers, linen fibers, hemp fibers and kenaf fibers, and third fibers, namely basalt fibers in a weight percentage ratio of (20-70):(10-60):(10-60); and the surface layer consists of polylactic acid fibers. The composite fiber automobile interior board can be made into a three-dimensional deep drawing high-strength automobile interior board, and is safe, firm and environment-friendly when used as the base material of an automobile door inner board and a ceiling.

Ultrathin flat panel loudspeaker

The invention relates to an ultrathin flat panel loudspeaker, belonging to a part of electric-acoustic device and audio electronic product. A vibration system of the ultrathin flat panel loudspeaker comprises a flat panel diaphragm, an edge, a centring disk, a plastic bracket and a voice coil; and a magnetic circuit of the ultrathin flat panel loudspeaker comprises an upper magnet, a magnetic conductive splint and a lower magnet. The ultrathin flat panel loudspeaker provided by the invention has the advantages of novel structure, ultrathin thickness, high acoustic fidelity, wide sound frequency response range and high electric-acoustic conversion efficiency.

Plant fibre reinforced biodegradable film material and preparation thereof

The invention relates to a biodegradable thin-film material strengthened by plant fibers and a preparation method thereof. Raw materials and parts by weight thereof used are as follows: 20 parts to 45 parts of plant fibers, 30 parts to 50 parts of starch, 20 parts to 35 parts of vinyl monomers, 20 parts to 30 parts of biodegradable plastics, 10 parts to 15 parts of plasticizers, 3 parts to 5 parts of water and 0.5 part to 3 parts of heat stabilizers. The preparation method of the thin-film material comprises the steps: the plant fibers, starch, vinyl monomers and water of certain quantities are evenly mixed and radiated by a cobalt Gamma 60 source or an electron accelerator for 0.5kGy to 20kGy; the material after radiation is mixed with the biodegradable plastics, the plasticizers and the heat stabilizers; then a twin screw is used for preparing a thin-film special material; and finally the thin-film is formed by means of blow molding using a single screw. The completely biodegradable thin-film ...

Environmental-friendly recyclable basalt fiber and jute fiber composite plate for automotive interiors and production method thereof

The invention relates to an environmental-friendly recyclable basalt fiber and jute fiber composite plate for automotive interiors and a production method thereof. The environmental-friendly recyclable basalt fiber and jute fiber composite plate is produced by manufacturing a felt by combining a surface layer with a core layer and then carrying out hot-press forming. The core layer is manufactured by lapping and needling two natural fibers, i.e. basalt fibers and jute fibers, and mixtures of two chemical fibers, i.e. polyster fibers and polypropylene fibers; and the core layer comprises the following components in percentage by weight: 10%-30% of the basalt fibers, 10%-30% of the jute fibers, 20%-30% of the polyster fibers and 30%-40% of the polypropylene fibers. The invention has the advantages of low density, light weight, low cost, high strength, good toughness, large deformation, high safety, environment friendliness, recyclability, and the like.

Polyethylene terephthalate/basalt fiber composite material and preparation method thereof

The invention discloses a polyethylene terephthalate (PET)/basalt fiber composite material and a preparation method thereof, the components of which comprise macromolecule polyester resin, basalt fiber, vinyl multi-functional monomer and composition processing aid. At the temperature of 220 DEG C to 280 DEG C, other components excluding basalt fiber are firstly melt and blended together by using a twin-screw and then continuous basalt fiber is added by a special material port after the melting of the materials. Finally PET/basalt fiber composite material is prepared by the irradiation to the blended material particles. The PET/basalt fiber composite material has good processing property and excellent mechanical property.

Microorganism washing and deodorizing device

The invention relates to a microorganism washing and deodorizing device which comprises a spraying system, a filling system, a gas distribution system and a drainage system. The spraying system, the filling system, the gas distribution system and the waste liquid collection system form a deodorization tower main body. And the middle of the deodorization tower is filled with filler. And a water pump of the spraying system intermittently operates through a time controller. Each water storage tank is provided with a liquid level controller, and the system can control the start and stop of the water pump through the liquid level in the water storage tank. A net-shaped gas distribution grating plate is arranged on the lower portion of the deodorization tower and at the position about 1 meter away from the foundation, and gas distribution grids with thin holes are laid on the net-shaped gas distribution grating plate. Spraying water provided by the spraying system is in contact with the filler ...