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3570results about How to "Improve low temperature resistance" patented technology

High-temperature thermal-insulation anticorrosive nano coating and its preparing method

The invention discloses a kind of new industry dope. It comprises such materials as 95 - 105 weight shares of Component A, and 1 - 3 weight shares of Component B; thereinto, Component A is made from following weight percents of materials: cementing agent 30-60%, pigment 12 - 30%, filling agent 10 - 30%, auxiliary agent 0.1 - 5%, compound nanometer dispersing agent 5 - 15% and solvent 10 - 25%; Component B is comprised of catalyzed membrane forming agent - nanometer Sb2O3 and mixed organic solvent carriers. The invention firstly brings nanometer Sb2O3 into high temperature heat preservation dope as catalyzer in dope membrane forming process. The dope of the invention has following advantages: it has high temperature heat preservation and heavy anticorrosion performances, and the coat has good acid resistance, alkali resistance, salt mist resistance, oil resistance, chemical reagent resistance, waiting resistance and ultraviolet resistance; it has excellent fire protection and waterproof performance; the clinging strength of smearing membrane is good, membrane forming speed is fast, and performance is stable.
Owner:孙启明

Unsaturated copolymers, processes for preparing the same, and compositions containing the same

Unsaturated copolymer which is a copolymer of an alphaolefin of 2 to 12 carbon atoms and a conjugated diene monomer represented by the following formula (I-a) and has the properties: (a) in said copolymer, 1,2-addition units (including 3,4-addition units) derived from the conjugated diene monomer (I-a) form double bonds in the side chain of the copolymer, 1,4-addition units derived from the conjugated diene monomer (I-a) form double bonds in the main chain of the copolymer, and the quantity ratio of the double bonds of the side chain derived from the 1,2-addition units to the double bonds of the main chain derived from the 1,4-addition units (side chain double bonds derived from 1,2-addition units / main chain double bonds derived from 1,4-addition units) is in the range of 10 / 90 to 99 / 1 (b) five-membered rings are present in the main chain of said copolymer; and (c) the quantity ratio of the double bonds from all of the addition units to the five-membered rings (total of double bonds from all addition units / five-membered rings) is in the range of 20 / 80 to 90 / 10;wherein R2 is a hydrogen atom, an alkyl group of 1 to 8 carbon atoms or an aryl group.
Owner:MITSUI CHEM INC

Halogen-free flame-retardant cable sheath material for railway locomotive and manufacturing method for halogen-free flame-retardant cable sheath material

The invention discloses a halogen-free flame-retardant cable sheath material for a railway locomotive and a manufacturing method for the halogen-free flame-retardant cable sheath material. The halogen-free flame-retardant cable sheath material comprises 100 weight parts of rubber, 100 to 180 weight parts of metal hydroxide serving as a flame retardant, 0 to 60 weight parts of carbon black or white carbon black serving as a reinforcing agent, 0.5 to 5 weight parts of silane coupling agent, 5 to 30 weight parts of plasticizer, 1 to 5 weight parts of crosslinking agent and 1 to 5 weight parts of crosslinking aid. The halogen-free flame-retardant cable sheath material is prepared by a blending technology. The sheath material has excellent flame retardancy, oil resistance and low-temperature resistance, is suitable for cable sheaths of railway locomotives, and can meet the requirement of halogen-free flame-retardant cables for locomotives.
Owner:ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD

Special-purpose multifunctional modified random polypropylene material for pipe and its preparing process and application

InactiveCN101148530AWith flame retardant and antibacterial functionImprove heat resistanceFood industryHeat stability
The present invention discloses one kind of multifunctional modified atactic polypropylene pipe material and its preparation process. The atactic polypropylene pipe material consists of atactic copolypropylene, environment friendly fire retardant, pre-dispersed master batch of inorganic stuffing, impact modifier, antioxidant, composite antibacterial master batch and dispersant. It is applied in building pipes, pipeline for beverage and food industry, heat supply system and farm irrigation system. It has fire retarding and antibacterial functions, less shrinkage, high low temperature impact resistance, high heat resistance, high mechanical performance and excellent heat stability.
Owner:合诚技术股份有限公司

Hard carbon negative electrode material of lithium ion battery, preparation method and application of hard carbon negative electrode material

The invention relates to a hard carbon negative electrode material of a lithium ion battery, and a preparation method and application of the hard carbon negative electrode material. The hard carbon negative electrode material is doped with silicon and phosphorus, wherein the mass ratio of silicon precursor, phosphorus precursor and hard carbon precursor is 1:(0.1 to 5):(5 to 30). Due to the addition of silicon / phosphorus, the hard carbon negative electrode material provided by the invention is remarkably improved in the first discharge capacity (up to 550.8mAh / g), the first charge / discharge efficiency (up to 80.9%) and the first coulombic efficiency by doping, is remarkably reduced in the irreversible capacity, and has the advantages of excellent cycle performance and rate capability, good PC (poly carbonate) consistency and high PC resistance, wherein the capacity retention ratio is above 95% after discharge cycle for 100 weeks at a high discharge rate of 10C.
Owner:天津市贝特瑞新能源科技有限公司

Austenitic stainless steel buried arc welding wire for low-temperature equipment

The invention relates to a welding wire, in particular to a welding wire applying to austenitic submerged arc welding for low-temperature equipments, in terms of chemical composition and weight percent, comprising Cr: 19.0 to 23.0%, Ni: 9.0 to 12.0%, C: <=0.03%, Mn: 1.60 to 2.50%, Si: 0.30 to 0.60%, Mo: <=0.30%, Cu: <=0.30%, Co: <=0.20%, Ti: <=0.015%, Nb: <=0.05%, V: <=0.10%, B: <=0.005% and Fe as allowance. The welding wire has the advantages that: the welding wire steelmaking craft is stable; the drawing performance is good; the invention meets the welding technical requirements of the high-intensity, high-toughness and anti-corrosion steel with low temperature and low temperature equipments; the invention can apply to the steel of 500 to 750MPa strength level; the invention is suitable for large range of welding current and no blowhole; the moulding is beautiful; the weld joint can be well matched with the base material.
Owner:哈焊所华通(常州)焊业股份有限公司

High solid content vinyl acetate-ethylene copolymer emulsion and method for synthesizing the same

ActiveCN101200518AReduce consumptionIncrease the conversion rate of the polymerization reactionMonocarboxylic acid ester polymer adhesivesSodium bicarbonatePhenol
The present invention relates to high solid content vinyl acetate-ethylene copolymer latex for binder and the synthetic method, including 55 to 75 portion of vinyl acetate, 24 to 45 portion of ethylene, 3 to 5 portion of N-methylol acrylamide, 2 to 4 portion of PVA1788 and PVA0588, 0.4 to 1.0 portion of the compound of nonionic emulsifying agent nonyl phenol polyoxyethylene alkyl ether and anion emulsifying agent alkyl sulphate with 2:1 mixture ratio, 0.2 to 1.0 portion of 35 percents oxydol with 1:1 mixture ratio, 0.05 to 0.4 portion of formol zinc sulphate, 0.1 to 0.5 portion of ferrous sulphate, 0.5 to 1.0 portion of regular dodeca-carbon thiol-alcohol, 0.05 to 0.35 portion of potassium phosphate, 0.1 to 0.5 portion of sodium bicarbonate and 45 to 55 portion of de-ionized water. With the adoption of latex polymerization, low-residual monomer VAE latex with solid content more than 65 percents is synthesized, which is used as binder to be applied in timber processing industry and packaging industry.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Waterproof moisture permeation polyurethane paint used for textiles and preparation method

The invention relates to waterproof moisture permeation polyurethane paint used for textiles and a preparation method. The waterproof moisture permeation polyurethane paint is prepared from methyl diphenylene diisocyanate, toluene di-isocyanate, polyether glycol (with the molecular weight of 2000), linear dihydroxylated alkylsiloxane (with the molecular weight of 1000), polyester dihydric alcohol (with the molecular weight of 2000), trimethylolpropane, chain extending agents, sealing compounds, dibutyl tin laurate and solvents through the processes of pre-polymerization reaction, chain extension reaction and sealing reaction. The production process is simple, and the products have the advantages of self-crosslinking effect, soft hand feeling, good cold resistance performance, high moisture permeation performance, high water pressure resistance and little reduction after water pressure resistance washing.
Owner:郯城丰润粮机配件有限公司

Water-soluble polyurethane latex adhesive with porous network formed by 'core-shell' structure

An acrylic acid modified polyurethane adhesive with networked "core-shell" structure is prepared through LIPN technique and seed emulsion polymerization. Its latex granularity is adjustable for distrilution in 20-200 mm. Its advantages include high adhesion, excellent resistance to fatigue, impact and abrasion, and wide application range including pressure-sensing adhesive, paint for fabric and leather, high-molecular medical material, passive-sensing package for high energy explosive, etc.
Owner:王申

Method for preparing polybutadiene-base water polyurethane and modified emulsion thereof

The invention discloses a polybutadiene aqueous polyurethane and a preparation method of relative modified emulsion, which is characterized by reacting low polymer polyatomic alcohol and hydroxy-terminated butadiene rubber and isocyanate, adding hydrophilic chain extender and catalyst to be reacted, cooling and emulsifying to obtain polybutadiene aqueous polyurethane, mixing polybutadiene aqueous polyurethane, emulsifier, water and inducer uniformly, adding ethenyl monomer to carry out emulsion polymerization to obtain polybutadiene aqueous polyurethane modified emulsion. The invention uses hydroxy-terminated butadiene rubber to synthesize aqueous polyurethane which can be modified by ethenyl to obtain environment-friendly, stable and low temperature resistant aqueous resin with better mechanical property. The resin can be used in weaving, leather processing, paint and adhesive or the like.
Owner:ANHUI UNIVERSITY

Photo-setting adhesive

InactiveCN101392152AImprove adhesivenessExcellent adhesive abilityPolyureas/polyurethane adhesivesOrganic non-macromolecular adhesiveAdhesiveEpoxy acrylate
The invention discloses a photo-curing adhesive, in particular relates to an adhesive of ultraviolet rays or visible light. The adhesive comprises components of the following weight ratios: 10 percent to 75 percent of matrix resin, 5 percent to 50 percent of assisted resin and 10 percent to 70 percent of acrylate monomer, wherein, the matrix resin is a mixture of one or the mixture of polyether-based polyurethane and polybutadiene acrylate and the assisted resin is one or the mixture of polyurethane acrylate or epoxy acrylate. The photo-curing adhesive provided by the invention has better adhesive performance than a common adhesive, especially has very high adhesive strength to glass, crystal and metal, meanwhile, the photo-curing adhesive has excellent resistance performance to high temperature, high humidity and water boiling, thereby having wide application prospect.
Owner:GUANGDONG HENGDA NEW MATERIALS TECH

Insulating and environment-friendly PVC modified material and preparation method thereof

The invention relates to the technical field of PVC modified materials and particularly relates to an insulating and environment-friendly PVC modified material and a preparation method thereof. The insulating and environment-friendly PVC modified material contains the following raw materials: 80-120 parts of PVC resin, 40-60 parts of bulking agent, 40-60 parts of plasticizer, 10-15 parts of insulation modifier, 3-7 parts of heat stabilizer and 0.5-1.5 parts of lubricant, wherein the plasticizer is a mixture prepared from dioctyl terephthalate and tri-n-butyl citrate which are in the weight ratio of (5-7): 1; the insulation modifier is a mixture prepared from kaolin, titanium white and glass micro-beads which are in the weight ratio of (2-4): (1.5-2.5): 1, and the particle size of the glass micro-beads is smaller than 20 microns. According to the modified material prepared by the preparation method, all properties exceed the national standards, the insulating property is good, the resistivity reaches up to 5.1*10<14> omega, and the modified material is environment-friendly; the preparation method disclosed by the invention is simple in process, convenient in operation and control, stable in quality and high in production efficiency and can be applied to large-scale industrial production.
Owner:广东祺龙科技有限公司

High-temperature resistant flame-retardant environment-friendly PVC (polyvinyl chloride) modified material and preparation method thereof

The invention relates to the technical field of PVC (polyvinyl chloride) composite materials, and particularly relates to a high-temperature resistant flame-retardant environment-friendly PVC (polyvinyl chloride) modified material and a preparation method thereof. The alloy material comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 15-45 parts of filler, 25-55 parts of plasticizer, 5-10 parts of flame retardant, 2-10 parts of stabilizer, 2-10 parts of impact modifier, 1-2 parts of lubricant and 0.1-1.0 part of antioxidant. The raw materials are weighed and mixed according to the parts by weight; then the mixture is stirred and extruded and granulated by a twin-screw extruder; and the alloy material is obtained by cutting and air cooling. The alloy material provided by the invention is high-temperature resistant and environment-friendly, and has high strength, high flame retardance, strong compression performance and toughness, good processing performance, excellent comprehensive performance and wide application prospects. The preparation method provided by the invention is simple in technology and convenient to operate and control, realizes stable quality and high production efficiency, and can be applied to large-scale industrial production.
Owner:广东祺龙科技有限公司

Preparation method of modified cation waterborne polyurethane emulsion containing hydrophilic and hydrophobic side long chains and product thereof

The invention relates to a preparation method of modified cation waterborne polyurethane emulsion containing hydrophilic and hydrophobic side long chains and a product thereof. The method comprises the following steps that raw materials are prepared; polyester glycol dehydration pretreatment is carried out; polyester glycol obtained after dehydration pretreatment is subjected to a prepolymerization reaction with an end alkyl polysiloxane linear body, a nonionic chain extender, a functionality chain extender and diisocyanate under catalyzing of a polymerization catalyst so that a prepolymer can be obtained; the prepolymer reacts with a nonionic chain extender and a part diluent to prepare an intermediate; the intermediate reacts with a silane coupling agent, and is emulsified to prepare the modified cation waterborne polyurethane emulsion. The product is a polyester type cation waterborne polyurethane high-polymer material containing hydrophilic and hydrophobic side long chains, wherein polysiloxane is embedded into a main chain of the material, a side chain is grafted with long-chain polyether and long-chain alkyl, and the silane coupling agent is connected into the tail end of the material; the film-forming ability is high, and serving as a film, the emulsion has obvious water-repellent, antifouling and easy dirt-removing abilities, is excellent in compatibility with a cation softening agent, and has an excellent low-temperature soft feature; the product is safe, environmentally friendly and convenient to use.
Owner:HUBEI DAYA BIOLOGICAL TECH CO LTD

Boiling resistant polyurethane adhesive and method for preparing same

The invention discloses a boiling resistant polyurethane adhesive and method for preparing same, wherein the adhesive comprises by weight ratio 50-90% of main component and 10-50% of curing agent, the main component comprises (A) polyether polyol with hydroxyl value being 10-30mgKOH / g and (B) polyester polyol with hydroxyl value being 30-100mgKOH / g, the curing agent is polyisocyanate prepolymer. The adhesive can be applied for an intaglio gluing dry-type compounding machine.
Owner:广东国望精细化学品有限公司

Flame-retardant and environmentally-friendly polyurethane cable material and its preparation method

The invention provides an flame-retardant and environmentally-friendly polyurethane cable material. The cable material is prepared from the following raw materials, by weight, 20-30 parts of chloroprene rubber, 60-80 parts of a polyurethane thermoplastic elastomer, 8-10 parts of acrylonitrile-butadiene rubber, 8-10 parts of chlorinated paraffin, 0.5-1.0 part of stearic acid, 1-3 parts of barium stearate, 4-6 parts of iron oxide, 0.5-1.0 part of ammonium trimolybdate, 30-50 parts of precipitated silica, 10-13 parts of modified argil, 0.5-1.0 part of capsaicin, 0.1-0.3 parts of an antioxidant AW, 0.5-1.5 parts of a promoter TMTD, 0.2-0.5 parts of sulfur, 8-10 parts of decabromodiphenyl oxide, 12-15 parts of antimony (III) oxide and 6-8 parts of zinc borate hydrate. The cable material has the advantages of excellent flame retardation, very less smoke in combustion, no generation of toxic gases or corrosive gases, good low temperature resistance, good oil resistance, and good abrasion resistance, and the cables processed through using the cable material can prevent the harms of mice and termites and simultaneously have the efficacies of low smoke, environmental protection and flame retardation.
Owner:蚌埠尚维知识产权运营有限公司

High-strength low-temperature-resisting spheroidal graphite cast iron and preparing method thereof

The invention relates to the field of spheroidal graphite cast iron, in particular to high-strength low-temperature-resisting spheroidal graphite cast iron and a preparing method thereof. The spheroidal graphite cast iron comprises, by mass percent, 3.2% to 3.5% of carbon, 2.1% to 2.3% of silicon, 0.4% to 0.5% of manganese, 0.4% to 0.6% of copper, 0.2% to 0.4% of nickel, 0.2% to 0.4% of molybdenum, 0.04% to 0.06% of magnesium, 0.05% to 0.08% of chromium, 0.005% to 0.008% of titanium, 0.002% to 0.003% of vanadium, not larger than 0.04% of phosphorus, not larger than 0.02% of sulphur and the balance iron. The preparing method of the high-strength low-temperature-resisting spheroidal graphite cast iron comprises following steps: firstly, raw materials are smelted; secondly, spheroidizing treatment and inoculation are carried out; and thirdly, heat treatment is carried out. Through reasonable arrangement of all element components, the tensile strength of the spheroidal graphite cast iron is improved, a proper nucleating agent is prepared, internal inoculation matched with inoculation in a ladle is adopted, the inoculation effect is reinforced, meanwhile, during heat treatment, the heating temperature, the heat preservation time, the cooling rate and the manner are reasonably arranged, the strength and low temperature resistance of the iron are effectively improved, the spheroidal graphite cast iron is high in strength and excellent in low temperature resistance, and the preparing method is simple and efficient.
Owner:HANSHAN COUNTY XINGDA DUCTILE IRON FACTORY

Water-based dye ink and application thereof

InactiveCN101805542AOvercome LightfastnessOvercome fading under lightInksDyeing processTextile printerWater based
The invention discloses a water-based dye ink and an application thereof. The water-based dye ink comprises the following components in percent by weight: 0.2 to 12 percent of water-soluble dye, 55 to 80 percent of modified acrylic resin emulsion, 0.01 to 1 percent of ultraviolet absorbent and balance of water, and different additives can be added. The dye ink can be applicable to the fields such as jet ink, cipher paint ink, textile printing ink, water-type printing ink, fountain pen ink and water ball pen ink, and has the advantages of water resistance, oil resistance, scratch resistance, illumination resistance, high temperature resistance, low temperature resistance, good color reducibility, duration and the like.
Owner:鲁继烈

High-pressure self-packing leather cup rubber for packer and preparation method thereof

The invention discloses high-pressure self-packing leather cup rubber for a packer. The high-pressure self-packing leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of isoprene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorosilicone rubber, 3-5 parts of natural rubber, 30-40 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of antimony trioxide, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of isocyanate, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BZ, 1-2 parts of calcium stearate, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of polyethylene wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent, 2-3 parts of coupling agent DL-151 and 16-18 parts of epoxy linseed oil. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.
Owner:WUHU HENGKUN AUTO PARTS

Acrylic resin with high toughness

The invention discloses acrylic resin with high toughness, which comprises the following components according to the weight portion: 50-75 of acrylic resin, 5-35 of polyethylene resin, 5-35 of compatilizer, 0.2-1 of processing materials, 4-15 of filling agent and 0.3-1 of dispersing agent, wherein the acrylic resin is one or the composition of more than two of isotactic PP, syndiotactic PP, block co-polymerized polypropylene or random co-polymerized polypropylene, and melting flow index of the acrylic resin is (0.4-30)g / 10min. The invention aims at overcoming the defects of the prior art, and providing the acrylic resin with rich source, low price, high elongation at break, strong temperature toleration, high softening point, excellent impact property, fatigue and bending resisting properties and wide application.
Owner:广东智汇赛特新材料有限公司

Light-curing edge sealing adhesive

The invention discloses a light-curing adhesive and in particular relates to an ultraviolet-curing adhesive. The light-curing adhesive comprises the following components in percentage by mass: 10%-75% of matrix resin, 5%-50% of auxiliary resin, 10%-70% of activated monomer of acrylate, allyl compound or vinyl compound, 5%-15% of adhesion accelerator, 1%-10% of photoinitiator and 0.5-10% of auxiliary agent. The light-curing adhesive provided by the invention has fast curing capability, high bonding strength and low internal stress; an obtained cured layer is soft and has excellent hydrofluoric acid resistance.
Owner:惠晶显示科技(苏州)有限公司

Preparation method of acrylic ester oligomer modified aqueous polyurethane pressure-sensitive adhesive

ActiveCN102020967ATo achieve mutual toleranceReduce usagePolyureas/polyurethane adhesivesPolymer scienceEmulsion
The invention relates to the technical field of preparation of aqueous adhesive and discloses a preparation method of acrylic ester oligomer chemical modified aqueous polyurethane pressure-sensitive adhesive. The preparation method comprises the following steps of: making hydroxyl monomers, a hydrophilic chain extender and polyisocyanate which are mainly used as man raw materials react to generate a prepolymer; adding an acrylic ester oligomer and making the acrylic ester oligomer and polyurethane prepolymer properly grafted; carrying out multiple modification through a cross-linking agent; and finally, carrying out water emulsification to obtain the acrylic ester oligomer modified aqueous polyurethane pressure-sensitive adhesive. In the invention, the acrylic ester oligomer is introducedinto the polyurethane system, and good characteristics of aqueous polyurethane and polyacrylic ester are integrated. Compared with solvent-based pressure-sensitive adhesive, water is used as a solvent in the invention, the usage amount of organic solvents is small so that the requirement of clean production processes are met, and the low temperature resistance is greatly improved. The synthesizedacrylic ester oligomer chemical modified aqueous polyurethane pressure-sensitive adhesive has more excellent mechanical property, strong bonding capacity, good film forming property and stable emulsion.
Owner:溧阳常大技术转移中心有限公司

Collophanite flotation collector and method for preparing same

The invention relates to a collophanite normal-temperature flotation collector, in particular to collophanite flotation collector prepared from natural rubber seed oil fatty acid, belonging to the collector. The invention also relates to a method for preparing the collophanite flotation collector. The collophanite flotation collector comprises natural rubber seed oil fatty acid, tall oil, tributyl phosphate, tween 80, dodecyl benzene sulfonic acid, inorganic base and water. The collophanite flotation collector has stable chemical performance, good water solubility, high flotation speed, suitable viscosity and strong selectivity and collection performance, is easy to diffuse in collophanite pulp, can be used for obverse floatation and reverse flotation and can generate uniform bubbles, obviously shorten the floatation time, improve the concentrate grade and reduce the content of impurities in the concentrate product.
Owner:YUNNAN CHEM RES INST

Cleaning fluid for cleaning plasma etching residue

The invention discloses washing liquid used in the semiconductor industry to wash plasma etching residues. The washing liquid contains citric acid / citrate buffer solution, fluorides, macromoledular corrosion inhibitor, anti-freeze agent and solvent. The washing liquid can effectively wash the plasma etching residues during the process of manufacturing a semiconductor, have low etching velocity on nonmetals and metal substrates such as Si, SiO2, tetraethoxy silane silicon dioxides (PETEOS), low-medium materials, Ti, Al, Cu and so on, is safe and harmless to the environment and the human body, and has good application prospect in the microelectronic field such as washing of semiconductor wafers and so on.
Owner:ANJI MICROELECTRONICS (SHANGHAI) CO LTD

Flexible epoxy adhesive and application

A flexible epoxy adhesive and application thereof are disclosed, wherein the flexible epoxy adhesive comprises a component A and a component B; the component A is composed of the following components according to part by weight: 100 parts by weight of epoxy resin, 30-50 parts by weight of polyurethane blocked by acrylate groups, 15-20 parts by weight of diluting agent and 1-2 parts of coupling agent; and the component B is composed of the following components according to part by weight: 100 parts by weight of modifying curing agent, 1-2 parts by weight of accelerator and 0.1-0.5 parts by weight of defoamer, and wherein the weight ratio of the component A to the component B is 2: 0.8-1.2. In addition, the invention also relates to the application of the epoxy adhesive as an adhesive for aroad surface coating. The flexible epoxy adhesive of the invention not only keeps good mechanical properties of the epoxy resin, but also has excellent properties as quick curability at normal temperature, excellent ageing resistance, low temperature resistance, good flexibility, high elongation at break and the like. Besides, the road surface coating formed from the flexible epoxy adhesive and abrasive aggregates is anti-skid and wearable, high in road surface comfort, excellent in durability, economic and environment-friendly, etc.
Owner:湖南固特邦土木技术发展有限公司

Low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and preparing method thereof

ActiveCN103059468AGood flexibility and electrical insulation propertiesImprove low temperature resistancePelletizingPlasticizer
The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and a preparing method thereof. The modified material comprises by weight, 80-120 parts of PVC resin, 20-45 parts of filling agent, 41-80 parts of plasticizer, 1-10 parts of cold-resistant modifying agent, 1-10 parts of fire retardant, 1-10 parts of stabilizing agent, 5-15 parts of impact modifier and 0.2-2 parts of lubricating agent. Each raw material is weighed by weight and mixed, after being stirred; the raw material is squeezed out of prilling through a double-screw extruder and the modified material is available. The low temperature resistant performance of the modified material manufactured by the preparing method is fine; the minimum usage temperature can reach below 65 DEG C. The modified material is environment-friendly and has the advantages of high intensity, good flame retardant effects, strong compression performance and toughness, excellent processing performance and better comprehensive performance. The preparing method of the low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material has the advantages of being simple in technology, convenient to control and operate, stable in quality, high in production efficiency. In addition, the preparation method of the low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material can be used for a large scale industrial production.
Owner:广东祺龙科技有限公司

Nitrile/EPDM for ozone and low temperature resistant seals

The invention relates to a nitrile rubber / ethylene-propylene-diene rubber used for an ozone resistant and low temperature resistant sealing ring. The rubber comprises the following components of: a nitrile rubber, an ethylene-propylene-diene rubber, a compatibilizer CPE, an anti-aging agent MB, stearic acid, paraffin wax, a plasticizer DOP, carbon block N550, pottery clay, a coupling agent KH-550, high styrene, a neutralizer TRA, a cross-linking agent DCP, a cross-linking aid TMPTMA and a cross-linking aid TAIC, wherein the nitrile rubber and the ethylene-propylene-diene rubber are used together to make up deficiencies of each other so that the poor ozone resistance, poor low temperature resistance and narrower heat resistant temperature range of the nitrile rubber can be improved and theuse temperature range of the product can be also expanded. After a small quantity of EPDMs (Ethylene-Propylene-Diene Monomers) are added to the nitrile rubber, the ozone resistance, the low temperature resistance and the heat resistance of the blended rubber product can be improved; meanwhile, the rubber product obtains wider use temperature range, better process performance and lower raw material and production cost while being compared with the nitrile rubber and the chloroprene rubber; and the requirements on the performance of domestic parts are satisfied.
Owner:TIANJIN PENGYI GRP CO LTD

Weatherable irradiation crosslinking cable material

The invention discloses a weatherable irradiation crosslinking cable material. Raw materials of the cable material comprise the following components, by weight, 100 parts of a thermoplastic elastomer, 0-35 parts of an engineering plastic, 2-80 parts of a polyolefin, 0.2-8 parts of a crosslinking agent, and 2-150 parts of a fire retardant. According to the invention, problems existing in manufacturing of cable materials from polyester copolymers are solved through reasonably designing the components and the ratio of the components, and utilizing the interaction of the components; and the prepared cable sheath material has the advantages of good processing fluidity, good mechanical properties, oil resistance, high temperature resistance, excellent hot extensibility and superior low temperature resistance after irradiation crosslinking, and substantial reduction of the material cost through the addition of the polyolefin interface phase solvent.
Owner:SUZHOU MEIGUAN PLASTIC MATERIALS

Modified water resistant low temperature white emulsoid

The present invention relates to adhesive and discloses a kind of modified waterproof low temperature white emulsoid and its preparation. The modified waterproof low temperature white emulsoid is prepared by using polyvinyl acetate emulsion as base material, water solution of polyvinyl alcohol as emulsoid protector, ethylene-vinyl acetate emulsion as waterproof and low temperature modified and calcium carbonate as kaolin as adhesion intensifier. It has various specifications exceeding the chemical industry standard, excellent waterproof performance, good low temperature performance, simple production process, relatively lower cost and no toxicity and harm.
Owner:SHANGHAI UNIV OF ENG SCI

Oil-resistant low-temperature-resistant weather-proof rubber sealing material and preparation method and application thereof

The invention belongs to the technical field of high molecular material, and discloses an oil-resistant low-temperature-resistant weather-proof rubber sealing material and a preparation method thereof. The rubber sealing material is prepared by taking millable polyurethane as a main material, adopting a small amount of nitrile rubber or epichloro-hydrin rubber, cooperatively adding a reinforcing agent, a plasticizer, an anti-sticking agent, a mold-release agent, an acid absorbing agent, a ketoamine anti-aging agent, a diphenylamine anti-aging agent, an imidazole anti-aging agent, a peroxide, an auxiliary cross-linking agent and other auxiliary materials, and mixing through an open mill or an internal mixer. A sealing product prepared by the rubber sealing material has better balance between low-temperature resistance and oil resistance, enables the glass transition temperature Tg to reach -40 DEG C or less, has excellent weather aging resistance performance, also has good comprehensive performance, and is long in service life.
Owner:GUANGZHOU MECHANICAL ENG RES INST
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