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High-temperature-resistant anti-corrosion polytetrafluoroethylene material and preparation method thereof
The invention belongs to the technical field of polymer plastic materials, and particularly relates to a high-temperature-resistant anti-corrosion polytetrafluoroethylene material and a preparation method thereof. The polytetrafluoroethylene is prepared from the following raw materials in parts by weight: 50 to 60 parts of polytetrafluoroethylene, 5 to 10 parts of fluorinated modified graphene oxide, 3 to 5 parts of aluminum powder, 5 to 8 parts of modified silicon carbide fiber, 3 to 5 parts of silane modified nano silicon dioxide, 2 to 3 parts of polyphenylene sulfide, 2 to 3 parts of polyimide, 0.5 to 0.8 part of dispersing agent and 0.5 to 1 part of antioxidant. The heat conduction performance and the interface bonding force are improved through the fluorinated modified graphene oxide, the impact resistance and the wear resistance are enhanced through the silicon carbide fibers, and the corrosion resistance and the wear resistance are improved through the aluminum powder; silane modified silicon dioxide enhances the mechanical property of the composite material by improving the dispersity of the filler, and PPS and PI interact with the surface of the filler through polar groups in molecular chains, so that the interface strength is improved, and the toughness and the thermal stability are improved.
Owner:GUANGDONG ENZINIER SPECIAL PLASTICS CO LTD
High-reliability friction material for electromagnetic brake and preparation method thereof
PendingCN119391371Ahigh strengthHigh impact strengthOther chemical processesFriction liningLamellar crystalsCarbon fibers
The invention relates to the field of friction materials, and discloses a high-reliability friction material for an electromagnetic brake and a preparation method of the high-reliability friction material. Raw materials of the friction material comprise benzoxazine, phenolic resin, butyronitrile rubber powder, modified basalt fibers, PBO pulp, ceramic fibers, plant fibers, carbon fiber powder, potassium titanate lamellar crystals, barite, light calcium carbonate, friction particles, wollastonite powder, aluminum-titanium powder, feldspar powder, aluminum oxide, zircon powder, garnet powder, crystalline flake graphite, artificial graphite, flexible graphite and composite metal sulfide. And polymer lubricating material micro powder. The friction material provided by the invention is suitable for a high-temperature and high-humidity environment, the stability of the braking performance of a brake is improved, and the phenomenon that the brake slips due to attenuation of braking torque is reduced.
Owner:CHENGDU CHAODECHUANG TECH CO LTD
Thermoplastic resin composition as well as preparation method and application thereof
ActiveCN119505462AImprove wear resistanceGood sound and heat insulationIndoor gamesPolymer scienceButadiene Dioxide
The invention provides a thermoplastic resin composition as well as a preparation method and application thereof. The thermoplastic resin composition is prepared from the following components in parts by weight: 10 to 40 parts of acrylonitrile-butadiene-styrene resin material, 30 to 70 parts of polymethyl methacrylate, 1 to 10 parts of modified hollow ceramic microbeads and 1 to 20 parts of toughening agent, the modified hollow ceramic microbeads comprise hollow ceramic microbeads modified by a coupling agent and stearate. The thermoplastic resin composition disclosed by the invention has the advantages of excellent wear resistance, good sound insulation effect and high surface hardness and impact strength.
Owner:CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
Special resin for modified ultra-high molecular weight polyethylene lining oil pipe and preparation method thereof
ActiveCN119463342AImprove liquidityImprove high temperature resistancePolymer scienceHyperbranched polyester
The invention belongs to the technical field of modification of ultra-high molecular weight polyethylene, and particularly relates to special resin for a modified ultra-high molecular weight polyethylene lining oil pipe and a preparation method of the special resin. The special resin for the modified ultra-high molecular weight polyethylene lining oil pipe is prepared from the following raw materials in parts by mass: 65 to 80 parts of ultra-high molecular weight polyethylene, 5 to 10 parts of high-density polyethylene, 8 to 12 parts of modified polyaryletherketone, 4 to 7 parts of modified hyperbranched polyester, 0.3 to 2 parts of silicone master batch and 0.1 to 0.5 part of antioxidant. The lining oil pipe prepared from the special resin for the modified ultra-high molecular weight polyethylene lining oil pipe has excellent wear resistance and high temperature resistance, and also has good mechanical properties such as tensile strength and impact strength.
Owner:WEIFANG JUPU NEW MATERIAL TECH CO LTD
Low-temperature-resistant high-transparency reinforcing material, preparation method thereof, plastic part and equipment
The invention discloses a low-temperature-resistant high-transparency reinforcing material and a preparation method thereof as well as a plastic part and equipment, and the low-temperature-resistant high-transparency reinforcing material is prepared from the following raw materials in percentage by weight: 50-79% of PP (polypropylene) resin, 5-7% of compatilizer, 2-5.5% of flexibilizer, 10-40% of glass fiber and 0.5-1% of other auxiliaries, the preparation method comprises the following steps: step 1, mixing the PP resin, the flexibilizer, the compatilizer and other auxiliaries by mixing equipment to obtain a mixture; and 2, mixing the mixture and glass fibers in extrusion equipment, and carrying out melt extrusion to obtain the low-temperature-resistant high-transparency reinforcing material. According to the low-temperature-resistant high-transparency reinforcing material, the propylene-butylene copolymer is selected as a resin raw material, reinforced plastic is prepared by utilizing high impact strength and transparency of the propylene-butylene copolymer, and an injection-molded product has the characteristics of low-temperature cracking resistance and high transparency; the reinforced plastic prepared from the propylene-butylene copolymer has high fluidity, and the prepared product does not have weld marks, does not show rib positions and is beautiful in appearance.
Owner:WUHAN SHUNWEISAITE ENG PLASTICS CO LTD
Modified polylactic acid material applied to high-speed 3D printing and preparation method thereof
PendingCN119432027Aincrease flow ratehigh speed printingAdditive manufacturing apparatusPhosphoric Acid EstersPlasticizer
The invention discloses a modified polylactic acid material applied to high-speed 3D printing and a preparation method of the modified polylactic acid material. The modified polylactic acid material comprises the following components in parts by weight: 50-80 parts of a polylactic acid material, 10-30 parts of inorganic powder, 1-10 parts of a toughening agent, 0.1-0.5 part of a coupling agent, 0.1-0.4 part of a hindered phenol antioxidant, 0.1-0.4 part of a phosphite antioxidant and 0.2-0.6 part of a plasticizer. The invention has the following beneficial effects: PLA with different flowability is compounded as a base material and is blended with inorganic powder, so that the printing speed of the material reaches 500mm / s, and excellent printability of high precision, no wiredrawing and layer grain covering is achieved; the coupling agent is introduced into a system of the PLA and the inorganic powder, so that the surface polarity of the inorganic powder is improved, the inorganic powder has good compatibility with a resin matrix, and the interlayer adhesive force and the mechanical property of the material are further improved.
Owner:NORTHBRIDGE NEW MATERIAL TECH (SUZHOU) CO LTD
Celadon glaze water, ceramic and preparation method thereof
The invention relates to the technical field of ceramics, in particular to celadon glaze water, ceramics and a preparation method thereof, and the preparation method comprises the following steps: preparing the celadon glaze water: preparing 10-15 parts of cooked talc, 5-8 parts of an additive modifier, 4-7 parts of ball clay, 4-7 parts of modified dolomite, 2-4 parts of Longquan porcelain clay, 2-4 parts of zinc oxide and 2-4 parts of tin oxide; the ceramic of the celadon glaze water is prepared by the following steps: blending potassium feldspar, quartz, kaolin and bentonite, and carrying out wet ball milling to obtain a ball-milled material; the preparation method comprises the following steps: by taking calcined talc, ball clay, Longquan porcelain clay, zinc oxide and tin oxide as matrix materials, adding a modifier and modified dolomite as functional aids, and blending and coordinating the matrix materials and the functional aids, obtaining the celadon glaze water with excellent surface wear resistance and impact strength.
Owner:DEHUA MINYIN CULTURAL CREATIVITY CO LTD
PP pipe and preparation method thereof
The invention belongs to the technical field of pipes, and particularly relates to a PP pipe and a preparation method thereof. The pipe is prepared from the following raw materials in parts by mass: 70-90 parts of polypropylene resin, 5-10 parts of modified aramid fiber, 2-5 parts of nano titanium dioxide, 1-5 parts of polybutadiene, 0.5-2 parts of an antioxidant, 0.5-1 part of a lubricant and 0.2-0.8 part of a coupling agent. The PP pipe prepared by the invention has excellent tensile strength, impact strength and other mechanical properties, and also has good thermal stability.
Owner:GKBM XIANYANG PIPELINE TECH
Preparation method of halogen-free flame-retardant PC plastic material
The invention relates to the technical field of polycarbonate, and discloses a preparation method of a halogen-free flame-retardant PC plastic material. According to the invention, polycarbonate and a triazine sulfonate-based silicone oil flame retardant are blended in a torque rheometer to obtain the halogen-free flame-retardant PC plastic material. A sulfonate group in the flame retardant can catalyze polycarbonate to be crosslinked into carbon, polysiloxane is pyrolyzed, an S-C layer is formed on the surface of polycarbonate, and a triazine group is pyrolyzed to generate nitrogen and other non-combustible gases, so that the limit oxygen index, the UL94 grade and the flame retardant property of the polycarbonate plastic material are improved. The triazine sulfonate-based silicone oil flame retardant contains hydroxyl, imino and other groups and has good compatibility with polycarbonate, the main chain is a flexible polysiloxane main chain, a good toughening effect can be achieved, and the bending strength and impact strength of a polycarbonate material are improved.
Owner:DONGGUAN MIER PLASTIC MATERIAL CO LTD
Polypropylene resin, preparation method thereof and polypropylene material
ActiveCN119331146AHigh low temperature impact resistanceMeet application needsBulk chemical productionPolymer sciencePtru catalyst
The invention discloses polypropylene resin, a preparation method thereof and a polypropylene material, the polypropylene resin is a binary copolymer of propylene and 1-hexene, and the impact strength at-20 DEG C is 3-7 KJ / m < 2 >. The polypropylene resin is prepared by adopting a solution polymerization method, and a titanium-containing Ziegler-Natta catalyst is adopted and comprises a main catalyst, a co-catalyst and an external electron donor; the internal electron donor in the main catalyst comprises a dicarboxylic acid ester compound and a 1, 3-diether compound. The polypropylene resin itself has high low temperature impact strength and low haze. The antioxidant, the deacidification agent and the anti-reflection agent are simultaneously added into the polypropylene resin base material, and the prepared polypropylene material has the characteristics of high low-temperature impact strength, high transparency, low ash content and the like, and meets the preparation of injection molding products in the fields of medical tube materials, medical packaging, food packaging and the like with relatively high requirements on low-temperature impact and transparency.
Owner:PETROCHINA CO LTD
An assembled wall with air duct crossing and installation method thereof
ActiveCN111576675BHigh impact strengthUnified structureConstruction materialWallsArchitectural engineeringStructural engineering
Owner:BEIJING NEW BUILDING MATERIALS PLC
Modified and toughened PET (Polyethylene Terephthalate) endurance plate and preparation method thereof
The invention discloses a modified and toughened PET (polyethylene terephthalate) endurance plate and a preparation method thereof, and relates to the technical field of PET modification, the modified and toughened PET endurance plate is composed of a macromolecular prepolymer, a toughening modifier, a compatilizer, matrix PET resin and a nanoscale inorganic filler; the macromolecular prepolymer is introduced into a branched structure through a modified chain extender, so that the strength and toughness of the matrix are improved; the toughening modifier adopts an elastomer and a functional monomer for graft copolymerization, so that the impact property is improved; the compatilizer is prepared by condensing an oligomer and a surface coupling reagent, so that the interfacial compatibility is improved; the nano filler is subjected to surface modification, so that the impact resistance and thermal stability of the material are enhanced; according to the invention, component synergy is realized through a multi-stage mixing and segmented feeding process, functional components such as a flame retardant and a light stabilizer are further introduced, the flame retardance, weather resistance and aging resistance are remarkably improved, the defects of fragility and multi-component blending interface of traditional PET are overcome, and the composite material is widely applicable to the field of high-performance plastic products.
Owner:HUNAN RIJING NEW MATERIAL TECH CO LTD
Nano-silica synergistic flame-retardant polypropylene composite material and preparation method thereof
ActiveCN119331353Ahigh tensile strengthHigh elongation at breakPolypropylene compositesPolymer science
The invention relates to the technical field of high polymer materials, and particularly discloses a nano-silica synergistic flame-retardant polypropylene composite material and a preparation method thereof, and the nano-silica synergistic flame-retardant polypropylene composite material comprises the following components in parts by mass: 50-70 parts of PP resin, 10-20 parts of a flame retardant, 2-8 parts of a flame-retardant synergist, 1-5 parts of a flow modifier, 0.2-0.8 part of an anti-dripping agent and 0.5-2 parts of an antioxidant. Compared with the prior art, the flame-retardant polypropylene composite material has the beneficial effects that the prepared flame-retardant polypropylene composite material has excellent performance in tensile strength, elongation at break, bending strength, impact strength, melt index and limit oxygen index.
Owner:HEFEI COBEL ADVANCED PLASTICS CO LTD
Polystyrene plastic for SMT (Surface Mount Technology) carrier tape and preparation method of polystyrene plastic
The invention relates to the technical field of polystyrene materials, in particular to polystyrene plastic for an SMT carrier tape and a preparation method of the polystyrene plastic. The problems that in the prior art, SMT carrier tape polystyrene plastic is insufficient in mechanical property and poor in aging resistance are solved. The preparation method comprises the following steps: introducing alkenyl-terminated polysiloxane into a polystyrene main chain, and carrying out heat treatment to obtain modified polystyrene; carrying out modification treatment on polycarbonate by using an anti-aging agent to obtain modified polycarbonate; the preparation method comprises the following steps: modifying nano titanium dioxide by using KH-550 to obtain modified titanium dioxide, and carrying out melt extrusion on modified polystyrene, modified polycarbonate, modified titanium dioxide and an auxiliary agent to obtain the polystyrene plastic for the SMT carrier tape. By adjusting the part ratio of polystyrene to alkenyl-terminated polysiloxane and the use amount of modified polyethylene and modified polycarbonate, the mechanical property of the polystyrene plastic is improved; the anti-aging agent is introduced into the polycarbonate structure, so that the anti-aging capability of the plastic is improved.
Owner:HUAIAN XUXIANG ELECTRONICS CO LTD
Flame-retardant polyamide composite material as well as preparation method and application thereof
ActiveCN119570246AImprove notched impact strengthHigh impact strengthCantilevered beamGlycidyl methacrylate
The flame-retardant polyamide composite material is characterized by being prepared from the following components in parts by weight: 20 to 35 parts of crystalline polyamide, 10 to 30 parts of PA6I / 6T, 10 to 20 parts of dialkyl hypophosphite flame retardant, 1 to 5 parts of melamine derivative flame retardant and 0.5 to 2 parts of GMA (Glycidyl Methacrylate) grafted SEBS (Styrene-Ethylene-Butylene-Styrene). By adding a certain amount of GMA grafted SEBS and PA6I / 6T into the dialkyl hypophosphite flame-retardant polyamide composite material, on one hand, the cantilever beam notch impact strength of the composite material can be greatly improved, and meanwhile, the good flame-retardant property of the material can be kept.
Owner:KINGFA SCI & TECH CO LTD
Preparation method of flexible hydrogen conveying pipe
InactiveCN119505446AHigh impact strengthImprove toughnessFlexible pipesCoatingsBenzoic acidPolymer science
The invention provides a preparation method of a flexible hydrogen delivery pipe, and relates to the field of flexible hydrogen delivery pipe manufacturing, and the flexible hydrogen delivery pipe comprises the following raw material components: polytrifluorochloroethylene, nylon 11, polyvinylidene fluoride, a micro-nano carbon material, polyethyleneimine, a compatilizer, a cross-linking agent, an antioxidant, a dispersing agent and a light stabilizer, the cross-linking agent is a thermoplastic polyurethane copolymer, the micro-nano carbon material comprises graphene oxide and graphene nanoplatelets, the dispersing agent is one of EBS, EB-G and PE wax, the antioxidant is antioxidant 1076, and the light stabilizer is one of benzophenone and 2-hydroxybenzoate; the gas barrier material has the advantages of being good in gas barrier property and high in mechanical property on the whole.
Owner:HUISUN PIPELINE CO LTD
Polylactic acid-plant fiber environment-friendly flame-retardant material for plates as well as preparation method and application thereof
The invention provides a polylactic acid-plant fiber environment-friendly flame-retardant material for plates as well as a preparation method and application thereof. Polydimethylsiloxane with reactive functional groups at two ends is used as a modifier for the polylactic acid composition, and a polysiloxane chain segment is introduced into a main chain of a polylactic acid molecule, so that the elongation at break, the impact strength and the heat resistance of the polylactic acid-plant fiber environment-friendly flame-retardant material are improved. For plant fibers, pectin components in the plant fibers are removed through alkali treatment, then an organic silicon coupling agent is used for treatment, the organic silicon coupling agent and hydroxyl groups of cellulose form a multi-site hydrogen bond coupling effect, the organic silicon coupling agent is adsorbed on the surface of the cellulose, and therefore the compatibility of the cellulose and polylactic acid molecules modified by polysiloxane chain segments is improved; therefore, the mechanical property, heat resistance and flame retardance of the environment-friendly flame-retardant material are further improved.
Owner:SHANGHAI MAHUAN NEW MATERIAL TECH GRP CO LTD
Graphene modified epoxy resin composite anticorrosive paint and preparation method thereof
InactiveCN119391268AImprove anti-corrosion performanceHigh impact strengthAnti-corrosive paintsEpoxy resin coatingsEpoxyPolymer science
The invention relates to the technical field of coatings, and discloses a graphene modified epoxy resin composite anticorrosive coating which is prepared by the following steps: reacting graphene oxide with epoxy chloropropane to obtain epoxidized graphene, reacting the epoxidized graphene with hydroxyl-terminated styrene-butadiene rubber under the action of a catalyst to obtain hydroxyl-terminated styrene-butadiene rubber modified graphene, and reacting the hydroxyl-terminated styrene-butadiene rubber modified graphene with toluene-2, 4-diisocyanate to obtain the graphene modified epoxy resin composite anticorrosive coating. The graphene modified epoxy resin composite anticorrosive paint is finally prepared by reacting isocyanate esterified styrene-butadiene rubber with graphene to obtain isocyanate esterified styrene-butadiene rubber modified graphene, further reacting the isocyanate esterified styrene-butadiene rubber modified graphene with N, N-carbonyldiimidazole to obtain imidazolyl styrene-butadiene rubber modified graphene, and blending the imidazolyl styrene-butadiene rubber modified graphene with epoxy resin, and graphene can absorb and disperse stress and can also form a physical barrier layer. And imidazole can provide free electrons and can form a stable monomolecular adsorption film on the surface of a matrix to prevent the corrosion process and further play a role in corrosion inhibition, so that the corrosion resistance of the epoxy resin coating is effectively improved.
Owner:FUJIN RUIYAN CONSTRUCTION & DECORATION ENGINEERING CO LTD
Modified black talcum powder filled plastic as well as preparation method and application thereof
ActiveCN119410066AIncrease added valueHigh impact strengthPlastic materialsUltimate tensile strength
The invention provides modified black talcum powder filled plastic as well as a preparation method and application thereof, and belongs to the technical field of plastic material modification. The modified black talcum powder filled plastic is obtained by modifying the black talcum powder and filling the modified black talcum powder into the PP resin, and the problem that the performance of the modified plastic needs to be improved in the prior art is solved. The modified black talcum powder filled plastic provided by the invention has the advantages of excellent impact strength, tensile strength, bending strength and the like, low cost and wide application prospect. The method has important significance in improving the additional value of the black talc, developing a new application direction and guiding the development of the black talc industry.
Owner:NANNING INST OF TECH
PVC (polyvinyl chloride) additive processing mixer capable of automatically proportioning
PendingCN119369559AHigh impact strengthGood weather resistanceLiquid storage tankProcess engineering
The invention is applicable to the technical field of material mixing, and provides an automatic proportioning PVC (polyvinyl chloride) additive processing mixer which comprises a box body and a shell which is fixedly arranged on the box body in a sleeving manner and is used for heating the box body, the stirring rod is rotationally arranged in the box body and is used for stirring materials; the weighing device is fixedly arranged at the top of the box body and is used for weighing a PVC (Polyvinyl Chloride) auxiliary agent; a weighing box is arranged on the weighing device; the plurality of liquid storage tanks are arranged above the side of the weighing box, and liquid discharge pipes of the plurality of liquid storage tanks are connected with the weighing box; the discharging pipe is fixedly mounted at the bottom of the weighing box and penetrates through the top of the box body; and the driving mechanism is arranged on the box body and is used for driving the stirring rod to rotate. The PVC auxiliary processing mixer with the automatic proportioning function has the advantages that the working efficiency can be effectively improved, the labor intensity can be reduced, waste can be reduced, and meanwhile, the processing performance of PVC resin can be improved through accurate proportioning and sufficient mixing.
Owner:SHANDONG HELONG NEW MATERIAL TECH CO LTD
Anti-penetration bionic spiral laminated backboard packaging ceramic composite structure
InactiveCN119617978AImprove impact resistanceImprove impact toughnessArmour platesCeramic compositeMetal framework
The invention belongs to the technical field of armor protection, and particularly relates to an anti-penetration bionic spiral laminated backboard packaging ceramic composite structure. According to the composite structure, the metal frame strongly restrains ceramic, so that the erosion efficiency of a ceramic material to a projectile is improved, meanwhile, the damage range under single impact is reduced through packaging, and therefore the multiple-impact-resistant capacity of the protective structure is improved. And the spiral laminated backboard on the lower surface of the ceramic is mainly used for providing back support for the ceramic material, so that the crushing of the ceramic material is delayed, and the penetration resistance of the ceramic is improved. The high-molecular polymer material back plate of the composite protection structure absorbs energy of shots and broken ceramic fragments through large deformation by means of the high tensile strength of the high-molecular polymer material back plate, and therefore the protection structure is prevented from being subjected to aftereffect damage after penetration of the shots. In addition, the overall thickness and the surface density of the composite protection structure are low.
Owner:BEIJING INST OF TECH
Low-gloss high-heat-resistance halogen-free flame-retardant PC / ABS alloy material and preparation method thereof
The invention discloses a low-gloss high-heat-resistance halogen-free flame-retardant PC / ABS alloy material and a preparation method thereof. The alloy material comprises the following raw materials in percentage by mass: 60%-90% of PC pure resin, 5%-10% of ABS pure resin, 1%-5% of talcum powder, 5%-10% of a flame retardant, 1%-5% of a flexibilizer, 0.2%-0.5% of an antioxidant, 0.2%-0.5% of a lubricant and 0.1%-0.5% of an anti-dripping agent. The invention also discloses a preparation method of the low-gloss high-heat-resistance halogen-free flame-retardant PC / ABS alloy material. The low-gloss high-heat-resistance halogen-free flame-retardant PC / ABS alloy material prepared by the invention has the advantages of low gloss, high heat resistance, favorable flame retardancy and favorable mechanical properties. The composite material can be widely applied to various fields such as automobile parts, electronic appliances, communication equipment, lighting equipment and the like.
Owner:中广核俊尔(浙江)新材料有限公司 +1
Multi-angle adjustable hull periphery anti-collision structure
ActiveCN222452497UHigh impact strengthImprove the safety of useClimate change adaptationCollision preventionStructural engineeringMechanical engineering
The utility model discloses a multi-angle adjustable hull periphery anti-collision structure which comprises a ship body, and the side face of the ship body is connected with a plurality of sets of protection devices. According to the multi-angle adjustable hull periphery anti-collision structure, the protection device can adjust the direction of the protection device and a collision object according to the running track of the hull, so that the direct collision strength when the protection device makes contact with the collision object is reduced, the collision strength of the hull is improved, and the use safety of the hull is improved in a disguised manner; by adjusting the angle of the protection device, the adaptability of a ship body and an impactor can be adapted, the force is more uniform when the protection device is stressed, protection of the anti-collision structure to the ship body is improved, multi-angle adjustment of the anti-collision structure can be achieved together with a rotating mechanism, use is more convenient, and the protection device can be disassembled when sliding out of the inner side of a concave block; after the protection device operates, the position damaged by collision can be replaced and maintained, and the ship body anti-collision structure can be conveniently replaced according to abrasion of the protection device.
Owner:JIANGSU HONGFU SHIPBUILDING CO LTD
Wear-resistant and anti-stripping toy coating and preparation method thereof
ActiveCN119331501Agood flexibilityImprove uniformityPolyurea/polyurethane coatingsHydroxystearic AcidSuccinic acid
The invention relates to a wear-resistant and anti-stripping toy coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from a waterborne polyurethane resin emulsion, a waterborne modified polyacrylate copolymer emulsion, a styrene-stearyl alcohol methacrylate cross-linked polymer, castor oil isostearate succinate, an olibanum serratum resin extract, dimerized pentaerythritol hexahydroxy stearate, stearyl alcohol beeswax, a compound emulsifier, nano silicon carbide, nano aluminum oxide, nano silicon dioxide, nano silicon dioxide, nano silicon dioxide, nano silicon dioxide, nano silicon dioxide, nano silicon dioxide and nano aluminum oxide. The coating is prepared by taking nano bentonite, polytetrafluoroethylene micro powder, a silane coupling agent and other components as raw materials through a special method, has good wear resistance, stripping resistance and impact resistance, is safe and environment-friendly, has good protection to a base material and long service life, and is a high-quality toy product coating.
Owner:CHINA PAINT XINFENG CO LTD
Lightweight high-strength power cable based on composite material and application thereof
ActiveCN119601295Alow densityLightweight effect is goodClimate change adaptationMagnetic/electric field screeningElectrical conductorPower cable
The invention discloses a lightweight high-strength power cable based on a composite material and application thereof, belongs to the technical field of cable preparation, and aims to solve the technical problem that the lightweight and anti-electromagnetic interference performance of a lightweight cable in the prior art needs to be further improved. The cable comprises a conductor layer, a light shielding layer, a wrapping layer and a composite sheath layer which are sequentially arranged from inside to outside, modified carbon spheres are introduced into a titanium dioxide aerogel structure for filling and loading copper particles, obtained composite aerogel serves as a filling material of the light shielding layer, the modified carbon spheres serve as a cross-linking agent and a filling material of light polyurethane, and the light shielding layer and the composite sheath layer are formed. The composite aerogel and the lightweight polyurethane significantly reduce the density of the cable and significantly improve the lightweight performance of the cable, and through the synergistic cooperation of the copper particles, the titanium dioxide aerogel structure and the hollow carbon spheres, the anti-electromagnetic interference performance of the material is significantly improved.
Owner:GUANGDONG JINXIANGYU WIRE & CABLE CO LTD
High-strength toughened epoxy vinyl ester resin composition and preparation method thereof
The invention provides a high-strength toughened epoxy vinyl ester resin composition, which is prepared by introducing a functional olefin monomer containing tert-butyl hindered amine into epoxy vinyl ester to obtain modified epoxy vinyl ester resin, and reacting the modified epoxy vinyl ester resin with isocyanate. A dynamic hindered urea covalent bond generated by the reaction enables a hindered urea group to have reversible dynamic property at room temperature, so that the rigidity of a casting body is superior to that of common vinyl resin; and when the material is subjected to external force, the dynamic hindered urea bond can be broken preferentially because the bond energy is lower than that of a covalent bond, so that energy is absorbed, stress is dissipated, and the toughness of the vinyl resin is improved. The high-strength toughened epoxy vinyl ester resin composition disclosed by the invention can be rapidly cured at room temperature, is excellent in comprehensive performance, and has improved rigidity and toughness at the same time.
Owner:JIANGSU SOBUTE NEW MATERIALS CO LTD +1
High-strength impact-resistant modified polypropylene plastic and application thereof in durable toys
The invention relates to the technical field of polypropylene, and discloses a high-strength impact-resistant modified polypropylene plastic and application thereof in durable toys, the high-strength impact-resistant modified polypropylene plastic comprises 100 parts by weight of polypropylene, 10-30 parts by weight of hyperbranched polyurethane elastomer, 2-8 parts by weight of a filler, and 0.3-0.5 part by weight of an antioxidant; the hyperbranched polyurethane elastomer contains an alkyl long chain with good compatibility with polypropylene, and meanwhile, in the high-temperature melt extrusion process, the alkyl long chain and a polypropylene molecular chain form a physical chain winding effect, so that the compatibility between the polyurethane elastomer and the polypropylene is remarkably improved, and the interfacial force between the polyurethane elastomer and the polypropylene is improved; the hyperbranched polyurethane elastomer has a better toughening effect, and the tensile property, the bending strength and the impact strength are obviously improved.
Owner:DONGGUAN GANGHUI ELECTRONIC TECH CO LTD
Low-precipitation medical polypropylene material and preparation method thereof
The invention belongs to the technical field of medical material preparation, and particularly relates to a low-precipitation medical polypropylene material and a preparation method thereof. The low-precipitation medical polypropylene material comprises the following components in parts by mass: 80-95 parts of polypropylene, 6-12 parts of a modified reinforcing filler, 15-23 parts of phosphoric acid hyperbranched polyester, 0.3-0.5 part of a composite antioxidant, 2-7 parts of a plasticizer, 1-3 parts of a nucleating agent and 1-3 parts of an antibacterial agent, and the modified reinforcing filler comprises nano silicon carbide whiskers and modified graphene carbon nanotubes. The problem that the medical polypropylene material is easy to separate out in the long-term use process and causes potential safety hazards of medication is solved, and the low-separation medical polypropylene material is prepared, so that the requirements of the medical polypropylene material are met, the weather resistance and long-term usability of the polypropylene material are improved, aging separation is prevented, and medicines such as diluted fungi are also prevented.
Owner:SUZHOU CRH NEW MATERIAL TECHNOLOGY CO LTD
Flame-retardant epoxy resin system, application thereof and pultrusion composite material
The invention belongs to the technical field of epoxy resin, and particularly relates to a flame-retardant epoxy resin system, application thereof and a pultrusion composite material. The flame-retardant epoxy resin system provided by the invention comprises a material A and a material B which are independently subpackaged, the material A comprises the following components in parts by mass: 70 parts of flame-retardant epoxy resin; 22 to 26 parts of epoxy diluent; 5-7 parts of a toughening agent; the material B comprises the following components in parts by mass: 95-97 parts of an anhydride curing agent; 0.3 to 2 parts of accelerant; 0.5 to 1.5 parts of an antioxidant; and 0.1 to 0.6 part of a release agent. The material A and the material B in the flame-retardant epoxy resin system provided by the invention select proper components and mass ratios of the components, so that the pultrusion material product has a flame-retardant effect while the modulus advantage, the lightweight characteristic, the high fiber volume content and the excellent mechanical property requirements of the pultrusion material product are maintained, and the flame-retardant epoxy resin system can be suitable for places with relatively high fireproof grades.
Owner:JIANGSU YANGNONG JINHU CHEM CO LTD +1
Antibacterial nylon wig fiber and preparation method thereof
ActiveCN116145283BGood antibacterial and bactericidal effectGood dispersionWigsConjugated synthetic polymer artificial filaments
The invention relates to the field of polymer materials, in particular to an antibacterial nylon wig fiber and a preparation method thereof. The antibacterial nylon wig fiber comprises the following components in parts by weight: 60-80 parts of nylon 66, 20-30 parts of a polyolefin elastomer, 10-15 parts of acrylate nano core-shell particles, 3-5 parts of a maleic anhydride grafted compatibilizer, 5-15 parts of quaternary ammonium salt grafted nano cellulose, 20-30 parts of talc, 0.05-0.15 parts of anatase nano TiO2, and 0.1-0.5 parts of an antistatic agent. The antibacterial nylon wig fiber prepared by the invention has not only excellent mechanical properties, but also good antibacterial properties, and can still maintain a high antibacterial activity after being washed with water for multiple times.
Owner:HOTAN YUNYAO HAIR PROD CO LTD