Aromatic polyester containing triphenylamine and preparation method and application of aromatic polyester

The invention relates to aromatic polyester containing triphenylamine and a preparation method and application of the aromatic polyester and aims to solve the problem that existing polyester is low in solubility in organic solvent and crystalize easily. The structural formula of the aromatic polyester containing triphenylamine is showed in the description and claims. The preparation method includes the steps of firstly, preparing N, N'-di(beta-naphthyl)-N, N'-di(4-carboxyl styrene) p-phenylenediamine monomer; secondly, performing polymerization reaction; thirdly, performing curing and film forming to obtain the aromatic polyester containing triphenylamine. By the preparation method, the aromatic polyester containing triphenylamine can be obtained.

Method for quickly producing edible fungus liquid strain by utilizing primary-secondary type culture tank

The invention relates to the technical field of edible fungus production equipment and discloses a method for quickly producing an edible fungus liquid strain by utilizing a primary-secondary type culture tank. The method comprises the following steps of: firstly, producing a culture medium and placing the culture medium into a secondary tank; secondly, sterilizing; thirdly, inoculating; fourthly, culturing a solid; fifthly, moving into a primary tank; and sixthly, culturing in the primary tank. The primary-secondary type culture tank is provided with a heating and sterilizing system, a constant temperature culture system and an air treatment system; a glass observation cylinder (6) is arranged at the upper part of the secondary tank, a double-layer heating water tank is arranged at the lower part of the secondary tank, and an upper sterilizing cover is arranged outside the secondary tank; and the secondary tank is internally provided with a filtering air-supply device, a strain feeding ...

Modified mineral water purification material process and preparation device and method thereof

The invention relates to the technical field of preparation of modified mineral water purification materials, in particular to a modified mineral water purification material process and a preparation device and method thereof.The modified mineral water purification material preparation device comprises a shell, a cleaning mechanism, a screening mechanism and a drying mechanism, a fixed cylinder is arranged in the shell, and a preparation cylinder is rotationally connected into the fixed cylinder; and positioning pieces are uniformly and fixedly connected to one end of the preparation cylinder, positioning rods are slidably connected to the middles of the positioning pieces, and a material channel is formed in one end of the shell. By means of the device, a user can conveniently prepare a powdery water purification material into a granular water purification material, meanwhile, the user can conveniently discharge the prepared particles, meanwhile, the particles are very easy and convenient ...

Polyurethane containing triphenylamine group as well as preparation method and application of polyurethane

The invention discloses polyurethane containing a triphenylamine group as well as a preparation method and an application of polyurethane, relates to polyurethane as well as a preparation method and an application thereof and aims to solve the problems of low solubility of existing polyurethane in an organic solvent and difficulty in processing. The structural formula of polyurethane containing the triphenylamine group is shown in the specification, wherein R is shown in the specification; n is larger than or equal to 1 and smaller than or equal to 100, and n is an integer. The method comprises steps as follows: 1), a monomer of N'-bis(alpha-naphthyl)-N,N'-bis(4-phenyl isocyanate) biphenyl is synthesized; 2), triarylamine polyurethane with N,N'-bis(alpha-naphthyl)-N,N'-bis(4-phenyl isocyanate) biphenyl structure is prepared; 3), curing and film formation are performed, and polyurethane containing the triphenylamine group is obtained. With the adoption of the method, polyurethane containing ...

Manganese dioxide cathode of welding-resistant tantalum electrolytic capacitor, capacitor and preparation method thereof

The invention discloses a manganese dioxide cathode of a welding-resistant tantalum electrolytic capacitor, the capacitor and a preparation method of the capacitor, and the preparation method of the manganese dioxide cathode comprises the following steps: providing a tantalum core anode coated with a tantalum pentoxide dielectric film, soaking the tantalum pentoxide dielectric film in manganese nitrate solutions with different specific gravities in a first specific gravity range, performing high-temperature water vapor decomposition, and performing repeated operation for multiple times to form an inner cathode layer on the tantalum pentoxide dielectric film; sequentially immersing the sample in a manganese nitrate solution with a decomposition accelerator in a second specific gravity range for multiple times, taking out the sample after each time of immersion, pre-drying the sample, and carrying out surface homogenization treatment; and performing thermal decomposition on the sample to ...

Scalable and dismantle combination formula drinking cup

The utility model relates to a scalable and dismantle combination formula drinking cup, including the first tube -shape body, the second tube -shape body, first end cover, second end cover and tubbiness cup, be provided with in the last port of the first tube -shape body with the internal thread of first end cover looks spiro union, the first tube -shape body be provided with in the port down with the last internal thread that closes of the outer thread to match of port of the second tube -shape body, be provided with the internal thread in the lower extreme throat of the second tube -shape body, the upper and lower end of tubbiness cup is provided with the external screw thread that can close with the interior thread to match of second tube -shape body lower extreme throat respectively, be provided with the heavy groove of ladder in the second end cover, the ladder sinks the last terrace inner wall in groove to have and sets up the internal thread that closes in the outer thread to match ...

Chip high-molecular tantalum fixed capacitor without humidity sensitivity grade and preparation method of chip high-molecular tantalum fixed capacitor

The invention relates to a humidity-sensitive-grade-free chip type high-molecular tantalum fixed capacitor and a preparation method thereof. The chip type high-molecular tantalum fixed capacitor comprises a tantalum core, a flexible insulating buffer layer, a plastic package shell, a positive electrode lead and a negative electrode lead, the tantalum core comprises a tantalum block, a dielectric oxide layer, a cathode layer, a transition layer and a silver layer which are sequentially arranged from inside to outside, and the silver layer is formed by sintering the transition layer coated with nano-silver paste; the flexible insulating buffer layer coats the outer side of the silver layer; the plastic package shell covers the outer side of the flexible insulation buffer layer; one end of the positive lead is connected with the tantalum block and the other end extends outwards to the outer side of the plastic package shell; one end of the negative lead is connected with the silver layer and ...

Netcom device MQTT multi-task scheduling method and system and readable storage medium

The invention discloses a Netcom device MQTT multi-task scheduling method and system and a readable storage medium, and the method comprises the steps: obtaining task processes, and grouping the task processes, the grouping mode at least comprises grouping based on read-write separation, grouping based on module concurrence, and grouping based on background service demands; executing a target subscription mode, wherein the target subscription mode adopts a subscription interface-data updating-subscription cancelling processing mechanism; and when any terminal obtains the real-time data of the interface, informing the terminal of the update data of the corresponding interface by using the Netcom device based on the target subscription mode. According to the invention, when the multiple terminals are connected and used at the same time, the Netcom equipment can still respond to the requests of the terminals in time, and consistent data change can be obtained when the multiple terminals subscribe ...

Manganese dioxide cathode of surge-resistant tantalum electrolytic capacitor, capacitor and preparation method thereof

The invention discloses a manganese dioxide cathode of a surge-resistant tantalum electrolytic capacitor, a capacitor and a preparation method of the capacitor, and the preparation method of the manganese dioxide cathode comprises the following steps: providing a tantalum core anode coated with a tantalum pentoxide dielectric film, putting the tantalum core anode into manganese nitrate solutions with different specific gravities for dipping, carrying out high-temperature water vapor decomposition, and taking out the tantalum core anode; a first cathode layer is formed on the tantalum pentoxide dielectric film after repeated operation; and forming a second cathode layer on the surface of the first cathode layer by adopting an electrochemical mode, and then performing heat treatment to form the manganese dioxide cathode. According to the tantalum electrolytic capacitor, the integrity and continuity of the manganese dioxide cathode layer are improved, the combustion and explosion risks of ...

Polyamide film with electrochromism performance, and preparation method and application thereof

The invention discloses a polyamide film with the electrochromism performance, and a preparation method and application thereof, relates to the polyamide film, and the preparation method and the application thereof, and aims to solve the problems of low solubility of polyamide in an organic solvent, difficulty in film forming and low heat stability in the prior art. The structural formula of the polyamide film with the electrochromism performance is shown as follows. The preparation method comprises the following steps: 1, synthesizing an N,N'-di(alpha-naphthyl)-N,N'-di(4-phenyl isocyanate) biphenyl monomer; 2, performing polymerization reaction; 3, performing curing and film-forming to obtain the polyamide film with the electrochromism performance. According to the invention, the polyamide film with the electrochromism performance can be obtained.

Folding shaping mechanism of integrated cigarette marking paper two-turnover box cover and its folding technology