215results about How to "Excellent non-flammability" patented technology

The invention discloses a corrosion-resistant magnesium aluminum alloy chromium-free passivation solution, which comprises the following components: 10-40 parts of water-base resin, 1-10 parts of nanoparticle sol, 1-10 parts of fluoric-containing acid, 1-5 parts of fluoric acid-containing salt, 1-5 parts of a rare earth catalyst, 1-10 parts of a silane coupling agent, 1-5 parts of a corrosion inhibitor, 1-2 parts of a complexing agent and 40-70% of water. The corrosion-resistant magnesium aluminum alloy chromium-free passivation solution does not contain chromium and other toxic and harmful substances, meets the ROHS environmental protection law of the European Union, and meanwhile, can form an organic and inorganic composite passivation film and a thin film on the surface of a magnesium aluminum layer, and the formed composite passivation film has an excellent physical property and corrosion resistance, and has higher corrosion resistance and long salt fog time, so that the corrosion resistance of a magnesium aluminum alloy plate is better improved.

The invention discloses a fluorine-containing polymer mixing material and a method for preparing a bulb buffer ball keyway by the same. The fluorine-containing polymer mixing material is prepared by mixing fluorine-containing polymer resin with filler modified by a coupler, and comprises the materials in parts by mass as follows: 60-99 parts of fluorine-containing polymer resin and 1-40 parts of modified filler. The filler meets the condition that the filler is stably sintered at a temperature above the melting temperature of the resin and the granularity is smaller than or equal to 150 microns; the filler does not absorb moisture; and the filler is not clustered under the sintering condition and is not reacted with the polymer. The coupler accounts for 5-40% of the filler by mass percentage. The material has excellent chemical stability, self-lubricating property, noninflammability, resistance to atmospheric aging and high and low temperature adaptability and the like as well as higher mechanical strength. The hardness can be improved through modification and the material is used to prepare wear-resisting products. The bulb buffer ball keyway is prepared from the material so that a suspension type direction control arm assembly of an automobile with high mechanical strength, good wear-resistance and a long service life is further obtained.

There is provided a composition of refrigerant mixtures for low back pressure condition, comprising isobutane, 1,1-difluoroethane and, optionally, additive selected from the group consisting of carbon oxide, trifluoromethyl iodide and mixture thereof. The composition according to the present invention is environment-friendly and can be directly drop in the conventional refrigerator system adopting CFC-12 refrigerant without any systemic change.

The invention discloses a nano-wollastonite powder modified ethylene propylene diene copolymer cable material, which is prepared FROM the following raw materials in parts by weight: 100-120 parts of Lanxess Deutschland ethylene propylene diene copolymer 3950, 20-30 parts of butyl rubber BBK232, 10-15 parts of SG-3 PVC (polyvinyl chloride) resin, 10-15 parts of trioctyl trimellitate, 2-5 parts of propanediol sebacate polyester, 2-5 parts of epoxidized soybean oil, 5-10 parts of polyethylene wax, 0.2-0.5 part of bisphenol A, 1-2 parts of zinc stearate, 0.5-1 part of lead sulfate tribasic, 1-2 parts of sulphur, 3-5 parts of zinc oxide, 30-40 parts of wollastonite powder, and the like. The cable material not only has excellent flame retardance and incombustibility, but also has the advantages of good high and low temperature resistance, corrosion resistance, water resistance, wear resistance, ozone resistance, ageing resistance and the like at the same time, and is durable in use.

The invention relates to inorganic thermal-insulation mortar used for building exterior walls of buildings and a preparation method thereof. The invention is characterized in that the thermal-insulation mortar comprises the following components in part by weight: lightweight aggregate 100-150, binding material 100-150, fly ash 10-60, and additive 8.72-11.36. Compared with the prior art, the inorganic thermal-insulation mortar has the advantages of high weather resistance, high aging resistance, long service life, high fireproofing and flame-retarding performance, energy conservation and environment protection.

An electromagnetic wave absorber is formed by injection-molding a thermoplastic resin blended with approximately 20-60% by volume of soft magnetic material powder, and blended with a molding assistant and a kneading assistant. The electromagnetic wave absorber includes a unit cell having a bore extending from a top face to a bottom face. A portion of the bore located more adjacently to the bottom face than to the top face has a smaller cross-sectional area than the bore at the top face, and a height of the unit cell from the bottom face to the top face is approximately at least 1.2 times and approximately at most 10 times as large as the maximum width of the bore at the top face of the unit cell.

The invention discloses a compound filter material, a method and application thereof, and relates to a filter material. The invention provides a compound filter material which has good folding endurance, corrosion resistance and wear resistance and can be used as a high-temperature environment filter material, a method and application thereof. The compound filter material comprises the following components in percentage by mass: 1 to 99 percent of basalt fiber and 1 to 99 percent of polytetrafluoroethylene fiber. The preparation method comprises the following steps of: mixing the basalt fiber and the polytetrafluoroethylene fiber to obtain a mixed fiber; and adding an antistatic agent to the mixed fiber for mixing to obtain the compound filter material. According to the mass percentage, the adding amount of the antistatic agent is 0.1 to 20 percent of the mixed fiber. The compound filter material can be used for directly preparing composite filter cloth with single-layer structure or multi-layer structure, and the prepared composite filter cloth with single-layer structure or multi-layer structure can be used for producing a filter device.

A halogen-free resin composition includes 100 parts by weight of epoxy resin; 10 to 100 parts by weight of benzoxazine resin; 10 to 100 parts by weight of styrene-maleic anhydride copolymer; and 10 to 90 parts by weight of dicyclopentadiene phenol novolac resin. The halogen-free resin composition features specific ingredients and proportions thereof to attain low dielectric constant (Dk), low dielectric dissipation factor, high heat resistance and high non-flammability and produce prepregs or resin film, and is thus applicable to copper clad laminates and printed circuit boards.

The invention discloses a foam cement filling type concrete composition heat preservation building block and a manufacturing method of the foam cement filling type concrete composition heat preservation building block, which belongs to the technical field of energy-saving building materials. The building block comprises a concrete base body with a cavity, wherein at least one air space which passes through the base body is formed in the inner side of at least one outer surface; at least one cavity of which the cross section area is greater than the cross section area of the air space is further formed inside the base body; a foam cement filling body is arranged in the cavity. Due to the concrete base body, the concrete composition heat preservation building block has good physical and mechanical properties and durability, due to the air space and the foam cement, the concrete composition heat preservation building block has good thermal performance, and meanwhile a manufactured product is conveniently transferred, built, decorated and constructed because of the air space. The foam cement filling type concrete composition heat preservation building block has the characteristics of light weight, good heat preservation, thermal insulation and sound insulation effects, high strength, non-combustibility, anti-permeability and the like, and can be widely applied to internal and external walls of urban frame structure buildings and rural buildings. The building block is convenient to construct and stable in performance, and the working intensity and the construction cost are greatly alleviated and lowered.

There are provided a solvent for dissolving an electrolyte salt of lithium secondary battery comprising at least one fluorine-containing solvent (I) selected from the group consisting of a fluorine-containing ether, a fluorine-containing ester and fluorine-containing chain carbonate, 1,2-dialkyl-1,2-difluoroethylene carbonate (II) and other carbonate (III), a non-aqueous electrolytic solution comprising the solvent and an electrolyte salt, and a lithium secondary battery using the non-aqueous electrolytic solution. The solvent for dissolving an electrolyte salt provides a lithium secondary battery being excellent particularly in discharge capacity, rate characteristic and cycle characteristic and has enhanced incombustibility (safety) and the non-aqueous electrolytic solution comprises the solvent and an electrolyte salt.

The invention provides a flame-retardant, environmentally-friendly and safe polyolefin sheath material. The polyolefin sheath material is prepared from the following raw materials, by weight, 20-30 parts of ethylene propylene diene monomer, 60-80 parts of high-density polyethylene, 8-10 parts of acrylonitrile-butadiene rubber, 8-10 parts of a rubber smoked sheet, 0.5-1.0 part of bisphenol A, 1-3 parts of modified tree ash, 20-30 parts of triethyl citrate, 4-6 parts of magnesium oxide, 0.5-1.0 part of molybdenum trioxide, 30-50 parts of fumed silica, 10-13 parts of nanometer calcium carbonate, 0.5-1.0 part of capsaicin, 0.1-0.3 parts of an antioxidant AW, 0.5-1.0 part of a promoter MBTS, 0.2-0.5 parts of a promoter TMTD, 0.2-0.5 parts of sulfur, 8-10 parts of decabromodiphenylethane, 12-15 parts of antimony (III) oxide and 6-8 parts of zinc borate hydrate. The polyolefin sheath 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, good abrasion resistance, and good prevention performance.

The invention discloses a nano-kieselguhr modified chlorosulfonated polyethylene rubber cable material. The cable material is prepared from the following raw materials in parts by weight: 100-120 parts of chlorosulfonated polyethylene rubber CSM2305, 20-30 parts of duprene rubber CR322, 10-20 parts of ethylene-vinyl acetate rubber, 5-10 parts of di-n-hexyl adipate, 5-10 parts of isopropylphenyl diphenyl phosphate, 4-6 parts of di(2-Ethylhexyl)-4,5-epoxytetrahydrophthalate, 1-2 parts of nonsoluble sulfur, 4-6 parts of butyl perbenzoate, and the like. The cable material not only has excellent flame retardance and incombustibility, but also has the advantages of good high and low temperature resistance, corrosion resistance, water resistance, wear resistance, ozone resistance, ageing resistance and the like at the same time, and is durable in use.

The invention relates to green environment-friendly polyurethane insulation material which will not destroy the atmospheric ozone layer. The insulation material is made from the raw materials with the following weight proportions and through the following method: (1) 92-96% of polyether, 0.5-2% silicone oil, 0.5-2% foam stabilizer, 1-4% catalyst and 1-4% of additive are fully mixed through a reactor to obtain the mixed material A; (2) according to the weight ratio of 1:0.05-0.3 between the mixed material A and HFC-245fa, the raw materials are evenly mixed to prepare the mixed material B; (3) based on the weight ratio of 1-1.1:1 between isocyanate and the mixed material B, the raw materials are mixed and foamed under high pressure so as to obtain the polyurethane solar energy insulation material after high-temperature solidification. The insulation material is green environment-friendly material which will not destroy the atmospheric ozone layer and has insulation and fire-retardant effects.

A nonaqueous solvent that includes an ionic liquid and has at least one of the following characteristics: high lithium ion conductivity, high lithium ion conductivity in a low temperature environment, high heat resistance, a wide available temperature range, a low freezing point (melting point), low viscosity, and the like. The nonaqueous solvent includes an ionic liquid and a fluorinated solvent. The ionic liquid contains an alicyclic quaternary ammonium cation which has a substituent and a counter anion to the alicyclic quaternary ammonium cation which has the substituent.

The invention relates to the technical field of electrolyte of flame-retarded lithium ion batteries, in particular to electrolyte of a flame-retarded lithium ion battery. The electrolyte comprises a lithium salt and an organic solvent, and is characterized in that three flame-retarded additives are also added into the electrolyte, wherein the three flame-retarded additives comprise fluoro-carbonate as a first additive, fluoro-benzene as a second additive and a nitrogenous and fluoride bearing organic compound as a third additive. By adopting the technical scheme, the fluoro-carbonate FEC is added into the existing electrolyte system to increase the viscosity of the electrolyte system to a certain extent so that the flash point of the electrolyte system is reduced; the additive fluoro-benzene with comparatively stable electrochemical properties is added to increase the noninflammability of the electrolyte to a certain extent and simultaneously ensure that the viscosity of the electrolyte system is moderate; and the nitrogenous and fluoride bearing organic compound is added to increase the noninflammability of the electrolyte on the basis of guaranteeing the electrochemical properties of the electrolyte.

The invention provides an irradiation crosslinking low-smoke and halogen-free flame retardant cable material. The cable material is prepared from the following raw materials, by weight, 100 parts of ethylene propylene diene monomer, 60-80 parts of high-density polyethylene, 9-11 parts of a maleic anhydride grafted polyolefin elastomer, 0.2-0.4 parts of an ultraviolet ray absorber UV-9, 10-20 parts of an EVA resin, 8-10 parts of aluminum hydroxide, 0.5-1.0 part of butyl stearate, 1-3 parts of zinc stearate, 0.2-0.5 parts of dicumyl peroxide (DCP), 1-2 parts of TAIC, 4-6 parts of zinc oxide, 0.5-1.0 part of molybdenum trioxide, 30-50 parts of carbon black N3393, 10-13 parts of nanometer calcium carbonate, 0.5-1.0 part of an antioxidant 4020, 0.1-0.3 part of an antioxidant MB, 8-10 parts of triphenyl phosphate, 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 weatherability, good abrasion resistance, good insulation property, and ultraviolet resistance.