3218 results about "Accelerant" patented technology

The invention relates to a high / low-temperature-resistant wear-resistant tear-resistant fluorosilicone rubber compound and a preparation method thereof, and belongs to the technical field of special rubber materials, the high / low-temperature-resistant wear-resistant tear-resistant fluorosilicone rubber compound comprises the following components: raw fluorosilicone rubber, a reactive liquid rubber compatibilizer, a reinforcing filler, a tear-resistant aid, a high-temperature-resistant aid, a vulcanizing agent, an accelerant, an anti-aging agent and an anti-attrition filler, the provided reaction type liquid rubber compatibilizer contains vinyl carboxyl liquid fluorosilicone rubber, the tear-resistant auxiliary agent contains zinc polymethacrylate, the high-temperature auxiliary agent contains vinyl fluorosilane modified carbon nanotubes, and the anti-friction filler contains molybdenum disulfide and layered nano zirconium phosphate which are treated by oxygen plasma. The high and low temperature resistance stability, oil resistance, wear resistance and tear strength of the fluorosilicone rubber are synergistically improved by regulating and controlling the multi-cross-linked network structure of the fluorosilicone rubber, strengthening the interface action of the rubber and the filler and optimizing the composite vulcanization system, meanwhile, structuralization of a rubber compound is prevented by optimizing the preparation process, and the requirement for adaptability to severe working conditions is met.

The invention provides a supercritical rubber foaming material for soles, which is prepared from the following components in parts by mass: 50 to 95 parts of rubber, 5 to 50 parts of thermoplastic elastomer, 20 to 60 parts of white carbon black, 1 to 5 parts of flaky filler, 0.5 to 5 parts of active agent, 0.1 to 10 parts of coupling agent, 0.5 to 5 parts of softening agent, 2 to 5 parts of antioxidant, 3 to 5 parts of zinc oxide, 0.5 to 3 parts of stearic acid, 1 to 5 parts of accelerant, 0.5 to 3 parts of sulfur and 0.1 to 0.5 part of bridging agent. The sum of the mass parts of the rubber and the thermoplastic elastomer is 100. The preparation process of the rubber supercritical foaming material comprises preparation of a rubber compound and preparation of the rubber supercritical foaming material. According to the invention, the rubber and the thermoplastic elastomer matrix are used together to form a uniform dispersion system of the rubber / thermoplastic elastomer; the spherical white carbon black and the flaky filler are synergistically used to improve the filler-matrix interface effect, promote heterogeneous nucleation of supercritical gas, increase the cell density and endow the material with the performance characteristic of lighter weight. Through the combination of a material matrix, a formula system and a foaming method, the performance requirements of light weight, wear resistance and slip resistance of the sole rubber are met.

The invention discloses an organic amine composite absorbent for carbon capture and application thereof, and belongs to the technical field of carbon dioxide capture, the organic amine composite absorbent for carbon capture is in a solution state and comprises the following components: a main agent, an auxiliary agent, an accelerant A, an accelerant B and water; wherein the mass ratio of the main agent to the auxiliary agent is 2: (1-2); the mass ratio of the auxiliary agent to the accelerant A is 2: (1-2); the mass ratio of the accelerant A to the accelerant B is 2: (1-2); the total mass concentration of the main agent, the auxiliary agent, the accelerant A and the accelerant B in the organic amine composite absorbent for carbon capture is 30-40 wt%; the main agent is selected from N-methyldiethanolamine or N, N-diethyl ethanolamine, the auxiliary agent is selected from piperazine or hydroxyethyl ethylenediamine, the accelerant A is selected from triethylene glycol monomethyl ether and / or ethylene glycol monomethyl ether, and the accelerant B is selected from ethyl butyl ether and / or isobutyl ether. The organic amine composite absorbent for carbon capture has a wide application prospect in removal of carbon dioxide in flue gas.

The invention relates to the field of adhesives, in particular to a structural adhesive epoxy composition and a preparation method thereof. The structural adhesive epoxy composition is prepared from the following raw materials: epoxy resin, a toughening agent, a reinforcing agent, filler, a latent curing agent, a latent accelerant, a chemical foaming agent, a physical foaming agent and the like. Finally, the epoxy composition prepared by the invention can be used as a structural adhesive raw material, has ultrahigh expansion rate, low-temperature rapid curing capacity and structural adhesive property, and also has good mechanical properties and excellent comprehensive application effect, so that the complex requirements of the application field of the prior art on the structural adhesive raw material are met.

The invention provides a low-smoke halogen-free flame-retardant cable material and a preparation method thereof, and belongs to the field of cable materials. The low-smoke halogen-free flame-retardant cable material is prepared from the following chemical components: 32 to 40 parts of nitrile rubber, 22 to 27 parts of natural rubber, 8 to 12 parts of benzoxazole-siloxane copolymer containing phosphate dynamic bonds, 13 to 15 parts of core-shell-sheath three-stage structure flame retardant, 4 to 6 parts of hexaphenoxy cyclotriphosphazene modified carbon nanotubes, 2 to 3 parts of europium-doped mesoporous cerium dioxide and 3 to 4 parts of nano zinc oxide. The composite material is prepared from the following components in parts by weight: 3 to 4 parts of carbon nanotube grafted montmorillonite hybrid, 2 to 3 parts of lubricant, 0.8 to 1.2 parts of cross-linking agent, 0.3 to 0.4 part of accelerant, 0.4 to 0.6 part of dicumyl peroxide and 0.1 to 0.2 part of antioxidant. Unification of high flame retardance, low smoke, excellent mechanical property and processability of the cable material is realized.

The invention discloses a reclaimed oil bio-based plastic modified rubber material and a preparation method thereof, and the reclaimed oil bio-based plastic modified rubber material comprises the following components by weight: 30-70 parts of bio-based plastic, 10-40 parts of natural rubber, 5-25 parts of plant fiber, 5-50 parts of calcium powder, 0.3-1.5 parts of a vulcanizing agent, 0.8-2 parts of zinc oxide, 0.3-0.9 part of an accelerator, and 1-10 parts of a foaming agent. The invention relates to the technical field of rubber materials, in particular to an antibacterial and mildew-proof rubber material. The regenerated oil-based bio-based plastic is innovatively applied to modification of a rubber material, a new application way of the bio-based material in the field of rubber-plastic compounding is developed, a new thought is provided for solving the environmental and resource problems caused by a petroleum-based material, and the selection of the raw materials not only embodies effective utilization of renewable resources, but also has the advantages of environmental protection and environmental protection. The carbon emission is reduced, and the development trend of current green materials is met.

The invention provides a perfluoroether rubber sealing element and a preparation method thereof, and the preparation method comprises the following steps: taking tetrafluoroethylene and perfluoroalkyl vinyl ether as comonomers, and carrying out emulsion polymerization under the condition of a vulcanization point monomer and a chain transfer agent to obtain raw perfluoroether rubber; the preparation method comprises the following steps: mixing the raw perfluoroether rubber, the carboxyl fluorinated modified carbon nanotubes, a filler, a vulcanizing agent and an accelerant, and performing first-stage vulcanization and second-stage vulcanization to obtain the perfluoroether rubber sealing element. According to the perfluoroether rubber sealing element and the preparation method thereof provided by the invention, the compressive deformation resistance of the perfluoroether rubber sealing element is improved by adding the carboxyl fluorinated modified carbon nanotubes, so that the sealing element is ensured to meet the sealing requirement of semiconductor equipment.

The invention discloses an anti-aging water-stop belt and a preparation method and application thereof, and relates to the technical field of water-stop belts. The invention relates to an anti-aging water-stop belt which is prepared from the following raw materials in parts by mass: 40-60 parts of chloroprene rubber, 10-20 parts of natural rubber, 10-20 parts of ethylene propylene diene monomer, 15-30 parts of carbon black, 5-15 parts of white carbon black, 5-15 parts of a plasticizer, 0.5-2 parts of sulfur, 0.5-1.5 parts of an accelerant, 1-2 parts of an anti-aging ultraviolet light absorber, 5-15 parts of aluminum hydroxide, 1-3 parts of stearic acid and 3-8 parts of zinc oxide. The obtained water-stop belt has excellent ultraviolet aging resistance, ozone resistance and chemical corrosion resistance while keeping high elasticity, the mechanical stability of the water-stop belt is remarkably improved compared with that of a traditional product, the water-stop belt is suitable for joint sealing in harsh environments such as bridges, tunnels and water conservancy projects, and the waterproof service life of engineering structures can be effectively prolonged.

The invention relates to the technical field of wire and cable manufacturing, in particular to a high-flexibility low-smoke fire-fighting power cable and a preparation method thereof. The cable sequentially comprises a cable core, a shielding layer and an outer sheath layer from inside to outside, the outer sheath layer is prepared from the following preparation raw materials: 60 to 65 parts of methyl vinyl silicone rubber, 12 to 15 parts of ethylene propylene diene monomer, 8 to 10 parts of linear low-density polyethylene, 5 to 6 parts of cross-linking agent, 20 to 22 parts of flame retardant, 6 to 8 parts of reinforced flame-retardant filler, 20 to 25 parts of modified heat-conducting filler, 1.2 to 1.5 parts of coupling agent, 1.3 to 1.5 parts of antioxidant, 3 to 3.5 parts of lubricant, 2 to 2.5 parts of vulcanizing agent and 0.6 to 0.8 part of accelerant. The outer sheath layer of the high-flexibility low-smoke fire-fighting power cable prepared by the invention has excellent mechanical strength, toughness, heat-conducting property, high temperature resistance and flame retardant property, so that the high-flexibility low-smoke fire-fighting power cable has higher reliability and safety in fire-fighting power supply occasions.

The invention belongs to the field of carbon dioxide absorption and provides carbon dioxide absorption liquid and application thereof and a method for treating carbon dioxide. The carbon dioxide absorption liquid comprises water, a thermodynamic accelerant and a dynamic accelerant, the dynamic accelerant comprises amino modified graphene oxide, and the amino modified graphene oxide is tertiary amino modified graphene oxide. The reaction between the carbon dioxide absorption liquid and carbon dioxide has a high hydrate generation rate, and the separation efficiency of carbon dioxide can be improved.

The invention discloses low-temperature-resistant perfluoroether rubber and a preparation method thereof, and the low-temperature-resistant perfluoroether rubber comprises the following raw material components in parts by weight: 80-120 parts of a perfluoroether rubber polymer, 1-5 parts of an additive, 10-30 parts of a filler, 1-3 parts of a cross-linking agent, 1-4 parts of an accelerant, 1-3 parts of a processing aid and 1-3 parts of an acid acceptor. The perfluoroether rubber polymer is prepared through a two-step polymerization method, and then the perfluoroether rubber polymer and all the mixed auxiliary materials are mixed and mixed to prepare the low-temperature-resistant perfluoroether rubber. The perfluoroether rubber provided by the invention not only has relatively high hardness, tensile strength, extrusion deformation resistance, shearing resistance and low temperature resistance, can meet the use requirement of the perfluoroether rubber at-40 DEG C, but also has excellent plasma etching resistance, and can be applied to the semiconductor industry.

The invention discloses a high-temperature-resistant and corrosion-resistant coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: uniformly stirring 40-50 parts by weight of epoxy resin, 25-35 parts by weight of phenolic resin, 20-30 parts by weight of modified filler, 4-10 parts by weight of pigment and 50-65 parts by weight of solvent, then adding 5-10 parts by weight of curing agent and 0.5-1 part by weight of accelerant, and stirring to obtain the coating. The modified filler contains inorganic fillers such as titanium dioxide and glass flakes, a benzotriazole structure and a hindered phenol structure, and the modified filler has good compatibility with other raw materials and has chemical action with epoxy resin, so that the modified filler can stably exist in the coating, is not easy to migrate and fall off, and plays a role for a long time; under the combined action of other raw materials, the coating has excellent and stable high temperature resistance, corrosion resistance, aging resistance, flame retardance and the like, and the service life is greatly prolonged.

The invention belongs to the technical field of high polymer chemical materials, and particularly relates to a self-repairing composite waterproof board and a preparation method thereof. The invention relates to a high-temperature-resistant graphene coating which is prepared from the following raw materials: bisphenol A diglycidyl ether, fluorosilane modified nano SiO2, graphene slurry, polydimethylsiloxane, epoxy-terminated polydimethylsiloxane, a urea-formaldehyde prepolymer, a silane coupling agent, sodium dodecyl benzene sulfonate, an FSO-100 fluorocarbon surfactant, a CTBN adhesive, a curing agent, an epoxy accelerator DMP-30 and a diluent. Through the collaborative design of the gradient structure of the hard framework and the soft coating, low-surface-energy filler chemical anchoring, microcapsule local material supplementing and thermal triggering dynamic bond rearrangement, the board obtains balance among the bearing strength, long-term hydrophobicity, weather-proof barrier and repeatable thermal self-repairing; and meanwhile, the common defects that room-temperature self-repairing is difficult to realize, hydrophobic particles are easy to agglomerate, a coating is easy to layer and the like are avoided.

The invention relates to a heat-resistant, water-resistant and flame-retardant backboard composite material as well as a preparation method and application thereof. The heat-resistant, water-resistant and flame-retardant backboard composite material comprises a phosphorus-containing epoxy acrylate oligomer, common epoxy resin, toughened epoxy resin, phosphorus-containing epoxy resin, a filler, an additive flame retardant, a dicyandiamide curing agent, an accelerant, nitrogen-containing phenolic resin, a latent curing agent, a UV absorbent and an antioxidant. The phosphorus content in the material is improved by synthesizing the phosphorus-containing epoxy acrylate oligomer, so that the flame retardant property of the product is improved, and the problem of low flame retardant efficiency caused by direct addition of a phosphorus flame retardant is solved.

The invention relates to the technical field of rubber materials, in particular to a rubber composite material with self-lubricating and wear-resistant characteristics and a preparation method thereof. The rubber composite material with self-lubricating and wear-resistant characteristics is prepared from the following raw materials in parts by mass: 70 to 75 parts of nitrile rubber, 15 to 18 parts of carbon black, 30 to 35 parts of self-lubricating filler, 2 to 3 parts of plasticizer, 2 to 3 parts of zinc oxide, 2 to 3 parts of zinc stearate, 3 to 5 parts of coupling agent, 4 to 6 parts of self-lubricating additive, 1 to 1.5 parts of anti-aging agent, 1 to 1.5 parts of accelerant and 2 to 4 parts of vulcanizing agent. The prepared rubber composite material with self-lubricating and wear-resistant characteristics has excellent lubricating property, wear-resistant property and mechanical property. The method is suitable for the fields of automobile manufacturing, mechanical manufacturing, aerospace and the like.

The preparation method comprises the following steps: mixing 20-40 parts by mass of substituted hydroxymethyl glycoluril, 45-85 parts by mass of mercaptocarboxylic acid and 0.5-3 parts by mass of an acidic catalyst, stirring and reacting for 1-10 hours at the temperature of 50-150 DEG C under the pressure condition of-0.01 to-0.1 MPa, adding 300-800 parts by mass of an organic solvent for diluting after the reaction is finished, washing and purifying with deionized water, and collecting an organic layer, thereby obtaining the mercaptan curing agent. Concentrating and drying to obtain the mercaptan curing agent. According to the thiol curing agent, the rigid glycoluril group is introduced, so that the rigidity of a cured product structure is improved, and the mechanical property, the adhesive property, the heat resistance and the damp-heat aging resistance of a cured product are improved; four tertiary amine groups in the substituted glycoluril have a certain self-promotion effect on a thiol curing epoxy reaction, and the curing reaction temperature is reduced under the condition that an accelerant is not added; the glycoluril-containing thiol epoxy resin curing agent disclosed by the invention has good application value and development prospect.

The invention discloses a corrosion-resistant coating for a pipeline and a preparation method of the corrosion-resistant coating, and belongs to the technical field of coatings. The preparation method comprises the following steps: weighing 100-110 parts by weight of epoxy resin, 1-3 parts by weight of a dispersing agent, 5-10 parts by weight of a thickening thixotropic agent and 1-3 parts by weight of a defoaming agent, dispersing for 0.5-1 hour, adding 10-15 parts by weight of a diluent, stirring, and filtering by a 60-mesh screen to obtain a component A; weighing 90-100 parts of a curing agent, 50-60 parts of an anticorrosive filler and 5-10 parts of an accelerant, dispersing for 0.5 h, and filtering with a 60-mesh screen to obtain a component B; and mixing the component A and the component B according to the mass ratio of 6: (2-3), and dispersing to obtain the pipeline coating. A chemical effect exists between the anti-corrosion filler and the epoxy resin, so that the anti-corrosion filler can be highly dispersed and stably exist in the coating, powder and an organic medium in the anti-corrosion filler can give full play to a synergistic effect, and the pipeline coating is endowed with excellent and stable corrosion resistance and the like.

The invention relates to a method for continuously preparing a single-walled carbon nanotube, which comprises the following steps of: uniformly mixing organic metal and a growth promoter in proportion to form a catalyst, adding the catalyst into a dust spraying device, connecting each gas pipeline and a preheating furnace inlet, connecting an outlet of the preheating furnace with a vertical tube furnace, and sealing the whole device; firstly introducing inert gas to remove air, then preheating the furnace, and heating the vertical tube furnace; after the temperature is stable, the injection device injects a catalyst into the preheating furnace, the preheating furnace and the vertical tube furnace are kept at the constant temperature, and the single-walled carbon nanotubes continuously grow; after the catalyst is consumed, stopping gas supply, turning off a power supply, and taking a sample at room temperature. The catalyst is fully preheated before entering a vertical tube furnace, and the reaction activity of the catalyst reaches the highest; the temperature in the furnace chamber of the reactor is constant, organic gas is fully contacted with a catalyst, carrier gas and reducing gas and is uniformly heated, and continuous growth of the carbon nanotubes is facilitated; the energy consumption is low, the occupied area is small, the operation is simple, continuous production can be realized, the productivity is high, the length-diameter ratio is large, the G / D value is large, and the specific surface area is large.

The invention provides silicone rubber and a preparation method thereof. The invention provides silicon rubber. The silicon rubber is prepared from the following raw materials: vinyl-terminated polydimethylsiloxane, vinyl MQ silicon resin, an adhesion promoter, titanium dioxide, polymethylhydrosiloxane and a reaction inhibitor. The preparation method of the silicone rubber comprises the following steps: in the presence of a catalyst, mixing a mixture of vinyl-terminated polydimethylsiloxane and vinyl MQ silicon resin, an adhesion promoter, titanium dioxide, polymethylhydrosiloxane and a reaction inhibitor to obtain the silicone rubber. The silicone rubber disclosed by the invention has high reflectivity, low thixotropy, high fluidity, high heat resistance and storage stability, and is relatively simple in production process and suitable for industrial production.

The invention discloses a low-warpage damp-heat-resistant liquid epoxy molding compound as well as a preparation method and application thereof. The liquid epoxy molding compound is prepared from the following raw material components in parts by mass: 85 to 90 parts of modified silicon dioxide, 5 to 8 parts of naphthalene type epoxy resin monomer, 5 to 8 parts of anhydride curing agent, 0.1 to 0.3 part of coupling agent, 0.1 to 0.3 part of adhesion promoter and 0.2 to 0.5 part of temperature response type amine catalyst. The modified silicon dioxide is obtained by carrying out surface modification on micron-sized silicon dioxide by adopting a silane coupling agent containing an epoxy group, and the mass of the silane coupling agent containing the epoxy group is 0.3-0.8% of the mass of silicon dioxide. The liquid epoxy molding compound provided by the invention has excellent flowability, adhesive force and heat and humidity resistance, can significantly relieve and reduce the warping of a silicon wafer, and is suitable for integrated circuit packaging.

The invention belongs to the technical field of adhesive preparation, and particularly relates to a flexible epoxy adhesive modified organic silicon adhesive and a preparation method and application thereof.The flexible epoxy adhesive modified organic silicon adhesive is composed of a component A and a component B, the component A is prepared from 40-70 parts of vinyl-terminated silicone oil, 10-30 parts of hydrogen-containing silicone oil, 5-20 parts of filler, 1-5 parts of coupling agent and 1-10 parts of curing agent; and the component B comprises the following components in parts by weight: 60-70 parts of vinyl-terminated silicone oil, 5-20 parts of epoxy resin, 5-15 parts of a platinum catalyst, 1-5 parts of an accelerant, 1-5 parts of an inhibitor and 5-20 parts of filler. Epoxy resin is introduced into an organic silicon matrix and is matched with a toughening agent and a catalyst, so that efficient combination of a two-phase system is realized, and the adhesive which is stable in performance, high in adhesive force and excellent in flexibility is obtained and has excellent comprehensive performance and application prospects in electronic packaging, automobile part bonding and building sealing.

The invention belongs to the technical field of rubber blending and vibration reduction damping, and particularly relates to a rubber bushing sizing material and a preparation method thereof. The rubber bushing material is prepared from the following raw materials in parts by mass: 60-100 parts of natural rubber, 0-40 parts of butadiene styrene rubber, 0-40 parts of butadiene rubber, 5-20 parts of ethylene propylene rubber, 20-100 parts of filler, 2-8 parts of zinc oxide, 1-5 parts of a coupling agent, 2-10 parts of a plasticizer, 1-10 parts of an active agent, 2-8 parts of a damping agent, 1-6 parts of a fatty acid processing aid, 2-6 parts of an anti-aging agent, 1-6 parts of a vulcanization accelerator, 1-5 parts of a vulcanization aid and 1-5 parts of a vulcanizing agent. The rubber bushing material prepared by the invention has the characteristics of good processing property, excellent physical and mechanical properties, low compression set, good bonding property with a metal framework and the like, and meanwhile, the product can meet the use requirements of automobile shock absorption and long fatigue life under corresponding working conditions.

The invention provides a high-hydrophobicity anti-pollution flashover coating and a preparation method thereof, and relates to the field of coatings. The silicone rubber composition is prepared from the following raw materials in parts by weight: 80 to 100 parts of hydroxyl-terminated polydimethylsiloxane; 5 to 15 parts of modified nano silicon dioxide; 10 to 30 parts of a composite self-repairing microcapsule; 10 to 25 parts of a flame retardant; 3-8 parts of a cross-linking agent; 0.5-2 parts of a catalyst; 1-5 parts of an accelerant; 40 to 100 parts of a solvent; the modified nano silicon dioxide is fumed silica subjected to surface treatment by a fluorine-containing silane coupling agent and a platinum catalyst; the capsule wall of the composite self-repairing microcapsule is a polylactic acid-glycolic acid copolymer, and the capsule core of the composite self-repairing microcapsule is a mixed solution of a hydroxyl-terminated polydimethylsiloxane oligomer and methyltris (methylethylketoximino) silane. The coating has excellent hydrophobicity, weather resistance and targeted repair function.

The invention discloses a two-component heat-conducting epoxy pouring sealant resistant to cold and hot impact and a preparation method of the two-component heat-conducting epoxy pouring sealant resistant to cold and hot impact, and the two-component heat-conducting epoxy pouring sealant resistant to cold and hot impact comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 5 to 10 parts of epoxy resin, 1 to 5 parts of epoxy-terminated polybutadiene rubber, 1 to 5 parts of axle housing flexibilizer, 60 to 90 parts of filler, 0.1 to 0.5 part of dispersing agent, 0.1 to 0.5 part of anti-settling agent and 0.1 to 0.5 part of toner; the component B is prepared from the following raw materials in parts by weight: 10 to 20 parts of anhydride curing agent, 1 to 5 parts of accelerant, 60 to 90 parts of filler, 0.1 to 0.5 part of dispersing agent and 0.1 to 0.5 part of anti-settling agent. The axle housing toughening agent is mixed and matched with the epoxy-terminated polybutadiene rubber, and a special island structure is formed, so that the cold and hot impact resistance of the epoxy pouring sealant is greatly improved. The heat conductivity of the epoxy resin pouring sealant is improved, the heat dissipation performance is excellent, the hot and cold impact resistance can meet the pouring requirements of electronic product components, the loss is reduced, the energy is saved, and the service life is prolonged.

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.

The application provides a masterbatch type vulcanization aid and a preparation method thereof, a rubber composition, a rubber product and a tire. The preparation method comprises the following steps: S1, pre-reaction of stearic acid, an antioxidant and a vulcanization system to obtain a pre-reaction mixture; and S2, mixing of the pre-reaction mixture with rubber to obtain the masterbatch type vulcanization aid. Under the catalysis of stearic acid, the reagents in the antioxidant and the vulcanization system react to generate active intermediates. The active intermediates have the effect of promoting vulcanization and play the role of activating accelerators in advance, so that the active intermediates can replace the role of zinc oxide. The product after reaction is mixed with rubber, and the masterbatch formed can be used to prepare rubber products such as tires without containing zinc elements, so that zinc emission can be realized, and the environment is friendly.

The invention belongs to the technical field of building materials, and discloses a non-asphalt-based non-curing waterproof coating as well as a preparation method and application thereof. The waterproof coating comprises the following components: liquid resin, a thermoplastic elastomer modifier, a rubber modifier, a cross-linking agent, an accelerant, a filler, a chemical root inhibitor, a plasticizer, a dispersant, and at least one of optional pigment, a resin modifier, an antioxidant and a deodorant. The non-asphalt-based non-curing waterproof coating disclosed by the invention has high extensibility and thermal aging resistance.

The invention relates to a CMP (chemical mechanical polishing) composition for obtaining a high-quality SiC single crystal substrate surface. The CMP composition is prepared from the following raw materials in percentage by weight: 20-50 wt% of a polishing abrasive, 3-5 wt% of an oxidizing agent, 0.1-0.5 wt% of a surfactant, 0.2-0.5 wt% of a hydrogen bond regulator, 0.2-1 wt% of a polishing accelerant, 0.01-0.05 wt% of a defoaming agent and the balance of water, the CMP composition is neutral. According to the CMP composition, silicon oxide is adopted as a grinding material, a hydrogen bond regulator, a polishing accelerant and an oxidizing agent are introduced, the CMP polishing rate of a silicon carbide wafer is increased, the surface roughness Ra of the cleaned silicon surface can reach 0.07 nm or below, the cleaned surface is free of large particles (larger than 0.2 micron), meanwhile, the silicon oxide raw material does not need to be treated, and the CMP composition has excellent long-term storage stability; and the system does not have particle aggregation and sedimentation phenomena along with the prolonging of the storage time, and excellent polishing surface quality can be obtained in the subsequent polishing process.

The invention relates to the technical field of thermoplastic vulcanizates, and discloses a TPV sealing material and a preparation method thereof. The TPV sealing material is prepared from the following raw materials in parts by weight: 10 to 30 parts of PP resin, 40 to 60 parts of EPDM rubber, 10 to 20 parts of polylactic acid, 15 to 25 parts of filler, 0.5 to 1.5 parts of vulcanizing agent, 0.3 to 1.5 parts of vulcanization accelerator, 5 to 10 parts of compatilizer, 1 to 4 parts of modified heat stabilizer and 0.5 to 3 parts of modified anti-aging agent. Through preparation of the modified heat stabilizer, structural damage or sealing failure caused by thermal aging of a system can be reduced, and the service life of the sealing material is greatly prolonged; the preparation of the modified anti-aging agent can effectively resist the corrosion of environmental factors such as thermal oxidation and ozone to the system, and prevent the problems of cracking, hardening, elasticity attenuation, sealing failure and the like of the sealing material after long-term use.

The invention provides a sidewalk antiskid terrace material and a construction process thereof, and belongs to the technical field of terrace material manufacturing. The sidewalk antiskid terrace material is prepared from the following components: epoxy resin, polysiloxane elastic resin, fluorocarbon resin, modified covalent organic framework nanosheets, boron nitride nanotubes, nano silicon nitride particles, nano silicon dioxide, nano zinc oxide, a modified flame retardant, attapulgite, a curing agent, an accelerant, a flatting agent, a coupling agent and a dispersing agent. According to the sidewalk antiskid terrace material, various high-performance resins are compounded with the nano filler to form a coating with a compact and uniform structure, so that the mechanical strength and wear resistance of the terrace are remarkably improved. In addition, due to the application of the modified flame retardant, the floor has a good flame-retardant effect, and the safety is improved. The whole formula and the construction process are scientific and reasonable, strong adhesion of the coating is ensured, construction is simple and convenient, curing is sufficient, and the coating is suitable for long-term use of outdoor sidewalks and has attractive appearance and practicability.