8results about How to "Improve structural regularity" patented technology

The invention belongs to the technical field of high-molecular polymer floor materials, and particularly relates to an anti-warping and anti-aging plastic floor base material, a floor and a preparation method. A floor base material is prepared from PETG resin, ABS resin, a compatilizer, activated halloysite / calcium carbonate composite powder, a chain extender, a lubricant, a coupling agent, an antioxidant and a light stabilizer according to a certain ratio. Floor products can be manufactured by adopting the floor base material provided by the invention to be coated with a color film, a transparent film, a mute layer and the like. A floor made of the floor base material has the advantages of being low in warping, resistant to cracking and arching, free of halogen, environmentally friendly and the like, and belongs to a green low-carbon PVC-free environment-friendly floor.

The present invention relates to the field of electrochemical technology, and in particular to a binder and a preparation method thereof and a lithium ion battery. The preparation method comprises the following steps: mixing water, functional monomers, styrene, electrolytes, chelating agents, and pH regulators to obtain a bottom material; mixing a cosolvent and an initiator to obtain an initiator phase; mixing butadiene, styrene, unsaturated polyolefins, and a molecular weight regulator to obtain an oil phase; mixing a dispersing aid, an electrolyte, a functional monomer, and a cosolvent to obtain a functional monomer phase; heating the bottom material to 40°C to 70°C, adding part of the initiator phase, reacting at a constant temperature, adding the oil phase, the remaining initiator phase, and the functional monomer phase, heating to 70°C to 90°C for insulation reaction, and obtaining a binder. The present invention adopts a soap-free emulsion polymerization method, and the prepared binder can form a good wetting interface and bonding layer with the negative electrode active material and the conductive agent, and form a flexible cross-linked network bonding structure with the substrate to improve the bonding force.

The embodiment of the invention provides a semiconductor device, a preparation method thereof and a storage system, and relates to the technical field of semiconductor devices. The semiconductor device includes a first memory particle, a second memory particle, and a functional layer. The functional layer comprises a functional circuit and is provided with a first side. The first storage particles and the second storage particles are located on the first side of the functional layer, and the first storage particles and the second storage particles are mixed and bonded with the functional layer. In the embodiment of the invention, the first storage particles and the second storage particles are respectively mixed and bonded with the functional layer, so that the first storage particles and the second storage particles can be respectively and electrically connected with the functional circuit in a mixed bonding manner, and the distance between the first storage particles and the second storage particles is shortened; the transmission bandwidth between the first storage particles and the second storage particles is improved, the integration level of the semiconductor device is improved, and miniaturization of the semiconductor device is facilitated.

The application belongs to the technical field of high polymer materials, and particularly relates to an anti-static polycarbonate composite carrier tape and a preparation method thereof. The application provides an anti-static polycarbonate composite carrier tape which is composed of the following components in parts by weight: 70-80 parts of silicon-containing polycarbonate, 8-10 parts of carbon black material, 6-8 parts of polyethylene terephthalate, 4-6 parts of polyolefin, 0.4-0.6 parts of antioxidant, and 0.4-0.6 parts of heat stabilizer. The preparation method of the silicon-containing polycarbonate comprises the following steps: first, performing a temperature rising reaction by taking hydrogen-terminated silicone oil and eugenol as raw materials to obtain phenolic hydroxyl silicone oil; and then mixing diphenyl carbonate, bisphenol A and the phenolic hydroxyl silicone oil to perform a copolymerization reaction to obtain the silicon-containing polycarbonate. The composite carrier tape can achieve good anti-static effect, and can also improve the thermal deformation temperature and mechanical properties of the material.

The present invention discloses a carbon / carbon composite material based on graphene and its precursor. The precursor includes a plurality of stacked carbon fiber fabric layers, the interior of the carbon fiber fabric layer is filled with resin and graphene, a graphene bonding layer is provided between adjacent carbon fiber fabric layers, and the oxygen content of the graphene is 0%-50%. The carbon fiber fabric layer of the precursor is filled with resin and graphene substrate, which not only realizes the internal reinforcement of the carbon fiber fabric layer, but also induces the glassy carbon formed by resin carbonization of the composite material precursor during carbonization and graphitization due to the presence of graphene. The degree of graphitization is increased, thereby obtaining a carbon / carbon composite material based on graphene with optimized performance.

The method for preparing polyoxalate by ring-opening polymerization of cyclic oxalate monomers and cyclic oligomers thereof disclosed by the application is that at least one of the cyclic oxalate monomers and the cyclic oligomers thereof, or a blend of at least one of the cyclic oxalate monomers and the cyclic oligomers thereof and at least one of cyclic lactone, cyclic lactide and cyclic carbonate, is subjected to bulk ring-opening polymerization or solution ring-opening polymerization under the action of a catalyst and an initiator to obtain polyoxalate and its copolymer. Since the application adopts ring-opening polymerization to prepare polyoxalate, not only the problems of low esterification polycondensation efficiency and poor polymerization controllability are avoided, but also the side reactions of alpha-keto acid decarboxylation and terminal hydroxyl group etherification in the esterification polycondensation process are avoided, so that the polyoxalate obtained has controllable polymerization degree / molecular weight, high structural regularity and clear end group structure, and further has higher melting point and crystallization temperature and is white, and at the same time, a new way for preparing polyoxalate is provided.

This invention relates to the field of electrochemical energy storage materials and lithium metal battery technology, specifically to an in-situ polymerized solid electrolyte, its preparation method and application, and lithium metal batteries. This in-situ polymerized solid electrolyte is prepared by heating a ring-opening polymerization reaction using 1,3-dioxolane and 1,1,1-trifluoro-2,3-epoxypropane as reactants, sodium thiosulfate as an initiator, and lithium salt and plasticizer fluoroethylene carbonate as a precursor solution. This electrolyte possesses numerous amorphous regions, which is beneficial for ion transport, enabling the formation of a self-supporting dense structure. It also ensures close contact with the electrode, resulting in a pure interface that effectively reduces interfacial impedance and avoids side reactions at the electrode interface. Furthermore, it enhances oxidation resistance, broadens the electrochemical window, and inhibits dendrite growth. While achieving good mechanical properties, it also improves the cycle stability and safety performance of the battery. It has excellent application prospects in lithium metal batteries, lithium-ion batteries, solid-state energy storage systems, or flexible electronic devices.

The invention relates to the field of laser welding, in particular to steel ring laser welding equipment. The device comprises a drawstring looping device and a laser welding device, the drawstring looping device comprises two groups of clamping and overturning mechanisms distributed side by side and a driving mechanism for driving the two groups of clamping and overturning mechanisms to horizontally move; the laser welding device comprises a second supporting frame, a translation plate, a second telescopic device, a moving plate, a third telescopic device, a first connecting frame and a second connecting frame, wherein the second telescopic device is arranged on the second supporting frame and drives the translation plate to horizontally move; the moving plate is parallel to the translation plate; the third telescopic device is arranged on the translation plate and drives the moving plate to horizontally move; the laser welding head is arranged at the outer end of the first connecting frame, and the first connecting frame and the second connecting frame are each provided with a flattening assembly and a guiding assembly. According to the welding device, steel belts with different lengths can be butted into steel rings with different sizes for welding, the application range is wide, and the welding quality and the welding efficiency can be guaranteed.