1695results about How to "Improve aging resistance" patented technology

The invention relates to heat insulating and energy saving coating used for the vehicle, and the preparation method thereof. The invention takes organic resin film forming material as the main material, the coating at least includes infrared reflection pigment, hollow ceramic micro-spheres and silicon dioxide aerogel, an organic resin film having low sunlight absorption rate is formed in the coating through the organic resin film forming material with high transparency, the visible light and the near infrared ray in the sunlight are reflected through the infrared reflection pigment, the rutile type titanium dioxide and the hollow ceramic micro-spheres, and simultaneously a compact vacuum layer and an inert gas layer are formed on the surface of a coated object through the hollow ceramic micro-spheres and the silicon dioxide aerogel, so as to effectively isolate the radiant heat of the sun, and to reduce the heat conduction of air, and finally the heat insulating and energy saving coating used for the vehicle is formed, which not only can effectively reflect the energy in the sunlight, but also can effectively isolate the radiant heat of the sun and reduce the heat conduction of air, and simultaneously has good weather resistant performance, chemicals resistant performance, mechanical property and decorative property.

The invention relates to anti-bacterial water-based paint and a preparation method thereof. The paint comprises the following components in parts by weight: 0.2-11 parts of anti-bacterial agent, 8-33 parts of nano material, 23-64 parts of water-based resin dispersoid and 0.75-18 parts of adhesive resin or plasticizer. The preparation method comprises the following steps: firstly preparing a nano silver anti-bacterial agent; mixing deionized water, the anti-bacterial agent, a wetting agent, a dispersing agent and a defoaming agent and uniformly mixing, adding the nano material, uniformly dispersing to obtain the water-based dispersoid; adding the obtained water-based dispersoid to the mixed emulsion or water-based resin dispersoid, then adding the adhesive resin or plasticizer and various conventional assistants, stirring and dispersing evenly; adding pigments or colorant; and supplementing water to obtain the anti-bacterial water-based paint. The long-acting broad-spectrum antibacterial water-based paint has high fungicidal efficiency (more than 99%) on escherichia coli, staphylococcus aureus, black varietas of bacillus subtilis and the like and can reduce the high concentrate of organic matters of formaldehyde to the range of specified concentration index.

The invention discloses a fire-proof adhesive and application thereof. The fire-proof adhesive comprises the following components by parts: 100 parts of high-temperature bonding agent, 10-70 parts of fire retardant, 0.5-50 parts of flame retardant synergist, 5-50 parts of strength enhancer, 0.05-20.0 parts of water-proof modifying agent and 0.01-2.0 parts of curing modifying agent. By adopting the fire-proof adhesive and a preparation method of a fire-retardant EPS (Expandable Polystyrene) foam heat-insulating plate, the combustion performance and physicochemical performance of the fire-retardant EPS foam heat-insulating plate can be improved remarkably. For example, the heat-conducting coefficient can be lowered below 0.055w/m.k, the specific gravity can be lower than 150Kg/M<3>, the compressive strength is higher than 150KPa, and the heat value is less than 3MJ/kg.

The invention discloses a composite phase-change energy storage material for microcapsules and a preparation method thereof. The coating of the microcapsule is made of silicon dioxide, and the core of the microcapsule is made of a phase-change energy storage material, wherein the phase-change energy storage material is a paraffin organic solid-liquid phase-change energy storage material. 0.2 to 0.5 wt.% of dispersed emulsifier, 52.5 to 62.5 wt.% of solvent water, 18.75 to 31.5 wt.% of phase-change energy storage material and 15.5 to 18.75 wt.% of inorganic silica source are matched and put into a reactor for stirring for 5 to 8 hours; the mixture is uniformly dispersed and emulsified at the temperature 3 to 8 DEG C higher than that for solid-liquid phase change; hydrochloric acid aqueous solution catalyst with the pH value of 0.93 to 4.07 or sodium hydroxide aqueous solution catalyst with the pH value of 8.0 to 12.0 is added into the emulsion; the reacting solution is naturally cooled to room temperature and precipitation solution is obtained; the precipitate is washed with the combination of water and petroleum ether, wherein the mass percent of the petroleum ether is 30 wt.%; then the precipitate is washed with deionized water and is filtered, and the product is naturally aired. The invention improves the technology of phase-change energy storage and conservation, and has the function of automatic temperature regulation, favorable physical and chemical stability, crack resistance, flame retardancy, wear resistance and high thermal conductivity.

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

The invention relates to activated waste rubber powder and a preparation method thereof. The activated waste rubber powder is prepared from a mixture containing waste rubber powder, a softener and/or a rubber activating agent. The invention also relates to a waste rubber powder modified asphalt and a preparation method thereof. The waste rubber powder modified asphalt is prepared from a mixture containing base asphalt and the activated waste rubber powder. The activated waste rubber powder and the base asphalt have favorable compatibility, and the modified asphalt containing the activated waste rubber powder can have favorable storage stability, high temperature property and ageing-resistant performance and lower cost. In addition, the preparation methods of the activated waste rubber powder and the modified asphalt are simple in process and convenient to operate.

The invention discloses a thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables and a preparation method thereof. The thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables comprises the following components in parts by weight: 60-80 parts of EVA (ethylene-vinyl acetate), 20-30 parts of HDPE (high-density polyethylene), 10-15 parts of EPDM (ethylene-propylene-diene monomer), 15-25 parts of compatiblizing agent, 100-150 parts of halogen-free flame retardant, 0.5-1 part of antioxidant 1035, 0.5-1 part of antioxidant DSTP, 1-2 parts of ethylene bis stearamide, 3-5 parts of DCP (dicumyl peroxide), 2-4 parts of zinc oxide, 1-2 parts of calcium stearate, 10-20 parts of dimethyl methyl phosphonate, 30-40 parts of nano kaolin, 2-3 parts of stearic acid and 0.5-1 part of isopropyl tri(dioctylpyrophosphate)titanate. The sheath material disclosed by the invention has the advantages of excellent physical and mechanical properties, excellent flame retardancy, favorable high/low temperature resistance, favorable oil resistance, favorable solvent resistance, favorable wear resistance, favorable ozone resistance, favorable aging resistance, high flexibility, crack resistance and the like, is very durable, environment-friendly and pollution-free, and can completely satisfy the requirements for modern power cables.

An envirnomental protection type nano-paint with high resistance to ultraviolet ray, bacteria, mildew, brush, acid, and alkali, photocatalyzing function and amphophobic performance is prepared from filming material, nano material chosen from TiO2, SiO2 and zinc oxide, additive and water.

The invention relates to acrylic acid modified waterproof mortar comprising cement, quartz sands, pulverized fuel ash, triple superphosphate powder, acrylic acid redispersable rubber powder, a water-repellent agent, a deforming agent and other auxiliary agents. The waterproof mortar with compact structure is obtained by adopting the acrylic acid redispersable rubber powder which has excellent ageing-resistant property and water-resistant property and good quartz sand graduation through formulation design and optimization, not only has good waterproof and impervious property, but also has excellent ageing-resistant property and excellent physical property.

The invention discloses a full-biobased epoxy resin condensate. The condensate is prepared by the following components in part by weight: 100 parts of abietyl-based epoxy resin base material, 50 to 300 parts of tung oil anhydride and 1 to 15 parts of catalyst, has the characteristics of higher mechanical property, high ultraviolet resistance, high aging resistance and the like and is particularlysuitable for preparing biobased composite material matrix resin and outdoor electric insulation materials. The invention also discloses a preparation method for the full-biobased epoxy resin condensate. The preparation method has a simple preparation process, is high in operability and process controllability and is easy to implement industrially. The invention also discloses a full-biobased epoxy resin composition and application thereof. The full-biobased epoxy resin composition is suitable for preparing a weather resistant epoxy adhesive, epoxy resin paint and an epoxy resin coating and has a good application prospect.

The invention relates to an anticorrosive paint for a weather-resistant corrosion-resistant steel pipe outer wall, which is prepared from 30-50 parts of alkyd resin, 2-5 parts of epoxy resin, 10-15 parts of terpene resin, 30-50 parts of hydrocarbon solvent, 3-8 parts of anticorrosive agent and 1-3 parts of drying agent. The paint provided by the invention can be applied by brushing, spraying, dipcoating, curtain coating or the like, and is naturally dried at normal temperature. The terpene resin adopted in the invention has high stability for oxygen, heat and light, and has excellent ageing resistance, so that the paint has excellent weather resistance. The rust inhibitor adopted in the invention can form a compact protective layer with high adhesive force on the surface of a steel pipe,and thus, prevents or slows the permeation of oxygen and water in the environment under the isolation action, thereby inhibiting the generation of corrosion microcells and performing a favorable anticorrosive protection function.

The invention relates to a nano interior wall coating; the composition by the weight percent is as follows: 35 percent to 45 percent of film-forming material, 28 percent to 42 percent of pigment and filler, 4 percent to 7 percent of assistant, 0.6 percent to 1.2 percent of nano powdery material, 1.0 percent to 2.0 percent of water-soluble nano silica sol, and 10 percent to 30 percent of deionized water. The film-forming material can be styrene-acrylic latex or acrylic latex; the pigment and filler is one or more than one type among rutile titanium dioxide powder, calcined kaolin, heavy calcium carbonate and super-fine aluminum silicate; the assistant comprises one or more than one type among dispersant, wetting agent, foam killer, preservative, thickener, anti-freezing agent, ph regulator and film-forming assistant. The coating of the invention can continuously release negative ions under the radiation of a fluorescent lamp, and can effectively degrade the dissociative TVOC and formaldehyde content in the air; the washing resistant times reaches 20000 to 50000 times, and the manual aging resistance reaches more than 1000 hours. In addition, the coating saves the consumption of nano powdery material and reduces the production cost.

The invention provides a microbial sand-fixing dust depressor and a preparation method thereof. The microbial sand-fixing dust depressor comprises the following components in percentage by mass: 0.8-2.5% of microbial powder, 3.0-5.0% of urea, 8.1-10.1% of calcium chloride and the balance of deionized water, wherein the microorganism in the microbial sand-fixing dust depressor is bacillus pasteurii powder. The preparation method comprises the following steps: proportionally mixing the calcium chloride with the deionized water, stirring till the calcium chloride is completed dissolved, adding the urea, and after the urea is dissolved, adding the bacillus pasteurii powder till the bacillus pasteurii powder is completely dissolved, thereby obtaining a mixed solution, namely the microbial sand-fixing dust depressor. Compared with the traditional inorganic sand-fixing agent, the microbial sand-fixing dust depressor is high in permeability; compared with the traditional organic sand-fixing agent, the microbial sand-fixing dust depressor has the characteristics of high ageing resistance, simplicity in preparation, convenience in construction and the like. Proved by desert sample tests, the sand-fixing dust depressor is high in ageing resistance and wind erosion resistance and has unconfined compressive strength higher than 1MPa. Proved by raise dust sample tests, the sand-fixing dust depressor has a good dust fixing effect.

The powerful adhesive includes neoprene, grafting monomer, thickener, dispersant, adhesion promoter, catalyst, antioxidant, solvent, stuffing, etc. The present invention also discloses the preparation process of the adhesive, and the preparation includes introducing grafting monomer to neoprene molecule chain to raise the adhesion strength, selecting proper adhesion promoting resin to increase the initial adhesion force, and adopting mixed solvent to form high adhering performance. The adhesive has high solid content and excellent environment protecting performance, and has also excellent antiageing performance, high resistance to heat, oil, chemical and corrosion, high weather resistance, good mildew-proof performance, antibiotic performance, etc. and may be used for adhering timber, concrete, rubber, metal, gypsum board, brick and other building material.

The invention discloses salt-spray-resistant and anti-aging water-based paint and a preparation method thereof. The salt-spray-resistant and anti-aging water-based paint is prepared from components in percentage by weight as follows: 40%-60% of a water-based epoxy ester emulsion, 8%-20% of an anti-rust pigment, 1%-5% of a coalescing agent, 4%-20% of filler, 0.5%-2% of a dispersant, 0.5%-2% of a defoaming agent, 0.3%-0.6% of an anti-settling agent, 0.1%-2% of an anti-rust agent, 0.5%-2% of a flash-rust inhibitor, 0.1%-2% of a wetting agent, 0.1%-0.5% of a mildew preventive, 0.1%-2% of a thickening agent, 0.1%-0.3% of a pH conditioning agent and 1%-20% of deionized water. The water-based paint can resist neutral salt spray for 550 H and resist QUV aging for 600 H, has the advantages of high water resistance, good storage stability, contamination resistance, fast drying, safety, environment-friendliness, simple preparation process and the like, is environment-friendly, accords with the environmental protection development trend and is suitable for industrial production.

The invention discloses an external rubber sleeve material of a cable used for wind power generation, comprising the following components by weight parts: 100.00 parts of chlorosulfonated polyethylene rubber, 15.00-20.00 parts of vulcanizing agent epoxy resin, 5.00-10.00 parts of magnesium oxide acid acceptor, 1.00-1.50 parts of vulcanization aid, 0.20-1.50 parts of vulcanization accelerator, 10.00-15.00 parts of fire-retardant plasticizer, 5.00-10.00 parts of cold resistant plasticizer, 30.00-40.00 parts of reinforcing agent, 40.00-50.00 parts of filling agent, 0.50-2.00 parts of anti-ageing agent, 0.50-2.00 parts of process operation agent, and 10.00-15.00 parts of flame retardant. The external rubber sleeve material of the cable used for wind power generation has the greatest advantages of extremely high physical and mechanical performance, excellent oil resistance and climate resistance, extremely softness and flame retarding, and the like.

The invention belongs to the field of waterborne coatings and discloses resin for a novel waterborne double-component organic-inorganic hybrid coating and a preparation method of the resin. For a component A, acrylic acid is used as a main body, polyester, alcohol acid, polyurethane, epoxy and organosilicon are utilized to modify the acrylic acid, and a waterborne acrylic resin dispersion with one or several functional groups is synthesized. For a component B, nano oxide sol with one or several functional groups is synthesized through a sol-gel method. Through inorganic modifying, antiaging performance, waterproofness and wear resistance of common double-component materials are improved, an organic-inorganic composite material with an inorganic portion accounting for a higher portion can be obtained, and stability of the organic-inorganic composite material in water is ensured; water is used as a diluent, so that VOC of a system is lowered, and the resin has excellent environment friendliness.

The invention relates to steel for bottle caps and a preparation method thereof, especially to steel for hard tinplate bottle caps and a production method thereof. The invention mainly solves the technical problems of unstable rolling, high hole ratio for pickling-rolling and poor surface quality of each process during pickling-rolling production of present steel for bottle caps. The technical scheme provided by the invention is as follows: the steel for hard tinplate bottle caps comprises the following chemical components of: by weight, 0.045-0.088% of C, Si being less than or equal to 0.1%, 0.30-0.50% of Mn, P being less than or equal to 0.020%, S being less than or equal to 0.020%, 0.010-0.060% of Alt, N being less than or equal to 0.0060%, and the balance Fe and some unavoidable impurity elements. The production method comprises four steps of steeling-making, hot rolling, pickling-rolling and continuous annealing, and is characterized in that hot rolling is controlled in the way: tapping temperature is 1200+/-30 DEG C, finishing temperature is 880+/-30 DEG C and coiling temperature is 580+/-30 DEG C; cooling mode is forepart cooling; pickling-rolling and continuous annealing are controlled in the way: RTF section temperature is 610+/-15 DEG C and SF section temperature is 610+/-15 DEG C. Hardness of the obtained tinplate finished product is HR30T63+/-3. The production method provided by the invention is mainly used for production of steel for bottle caps.

The present invention discloses a zinc oxide piezoresistor material comprising the following raw materials: ZnO, Bi2O3, Sb2O3, Co2O3, Cr2O3, MnCO3, NiO, Al2O3 and oxides of boron, wherein, calculating according to B2O3, the weight ratio of the oxide of boron to ZnO is 2.1-20:100; the percentages by mole of ZnO, Bi2O3, Sb2O3, Co2O3, Cr2O3, MnCO3, NiO and Al2O3 are respectively 90.5%-96.5%, 0.3%-5%, 0.1%-3%, 0.1-2%, 0.1%-1%, 0.2%-2%, 0.1%-1% and 0.005%-0.05%; and voltage-dependent combination performance of the material is good. The present invention further discloses a preparing method of the material; the method has the advantages of simple technology and low cost, and the method is suitable for industrialized production.

The present invention relates to a modified water-proofing asphalt roll material (called SA roll material for short), and is characterized by that in the raw material formula of asphalt 4-15% of thermoplastic elastomer polystyrene-butadiene-styrene block copolymer (SBS), 3-12% of atactic polypropylene (APP), 1-8% of light shielding agent, 0.05-3% of antioxidant, 0.05-3% of light stabilizer and 0.05-3% of UV absorbing agent. Said water-proofing roll material possesses low-temp. resistance, high-temp. resistance. UV-resisting property and good ageing resistance.

The invention provides a preparation method of a fiber-reinforced thermoplastic composite material, which comprises the following steps: impregnating fibers in a melt containing a thermoplastic resin, thereby obtaining a preimpregnated belt; and knitting the preimpregnated belt to obtain the fiber-reinforced thermoplastic composite material. The continuous-fiber-reinforced thermoplastic composite material is formed by a knitting technique to obtain the composite material in a three-dimensional structure, so that the composite material has high rigidity in both horizontal and longitudinal directions, thereby greatly enhancing the rigidity of the thermoplastic composite material. The invention also provides application of the fiber-reinforced thermoplastic composite material in preparing railway fastener system components. The experimental result indicates that the tensile strength of the fiber-reinforced thermoplastic composite material is 450-690 MPa, the tensile modulus is 25000-36000 MPa, the bending strength is 780-850 MPa, and the bending modulus is 25000-40000 MPa.

The invention relates to a high-temperature-resistant silane-crosslinked flame-retardation insulating material for automobile wires. The material comprises basic master batches, functional master batches and catalysis master batches with a weight ratio of 100 : 25-40 : 5-10, wherein the basic master batches comprise high-density polyethylene resin, polyester elastomer, hydrogenated nitrile rubber, maleic anhydride monomer, a silane cross-linking agent, a peroxide initiator, an anti-oxidant and a lubricant; the functional master batches comprise the high-density polyethylene resin, the polyester elastomer, a fire retardant, a wear-resistant agent, a lubricant and a bacteria-resistant agent; and the catalysis master batches comprise the high-density polyethylene resin, low-density polyethylene resin, a crosslinking catalyst and the anti-oxidant. The high-temperature-resistant silane-crosslinked flame-retardation insulating material meets requirements of T3 and T4 standards of DINISO6722 T1 to T4, can be used as novel materials for the automobile wires, and is free of irradiation and low in technology cost.

The invention discloses a sand texture type polyester/epoxy powder coating and a preparation method thereof. The sand texture type polyester/epoxy powder coating comprises the following raw materials, by weight, 350-400 parts of polyester resin (P5040), 240-280 parts of epoxy resin (E-12), 100-150 parts of extinction barium sulfate, 40-60 parts of spherical silica powder, 8-12 parts of modified polyethylene wax powder, 10-15 parts of organic coated titanium dioxide, 5-10 parts of sand texture agent (SWMBX-30), 4-6 parts of benzoin, 5-8 parts of 2-phenyl imidazoline, 4-6 parts of 2-methylimidazole, 5-10 parts of ferrite yellow, 5-10 parts of iron oxide red and 10-15 parts of carbon black. The prepared powder coating has the advantages of being high in hardness, high in intensity, high in abrasion resistance, good in heat resistance, good in ageing resistance, short in solidifying time, environment-friendly, free of pollution and the like. The solidified coating produces a texture effect of the sand texture, the sand texture is meticulous and clear, distribution is even, visual comfort is provided for people, and combination properties of the coating are good.

The invention discloses a chlorinated polyvinyl chloride tube and a preparation process thereof. The tube is prepared from chlorinated polyvinyl chloride resin, a stabilizer, a toughening agent, a filler, a lubricant, a light screener and an ultraviolet absorbent serving as raw materials, wherein the toughening agent is one or more of MBS (Methyl methacrylate-Butadiene-Styrene copolymer), anti-impact ACR (Acrylic resin) and CPE (Chlorinated Polyethylene); and the tube is prepared through the following steps of: uniformly mixing all the raw materials in a high-speed mixer, mixing and cooling in a cold mixer, extruding through a double-screw extruder, cooling and forming. Compared with the prior art, the tube has a novel toughening and reinforcing system, i.e., various organic toughening agents are used in coordination with one another, and an organic composite toughening agent is used in coordination with inorganic rigid particles for toughening and reinforcing; and the tube has superior performance and higher anti-impact strength, tensile yield strength, vicat softening temperature and weather resistance, has a wider application range, is safer, is suitable for being buried underground and laid in a concealed way and can also be stored for a long time and used outdoors.

The invention relates to a chromatic pervious concrete pavement material and a construction process thereof, which is characterized in that the formulation of a special concrete binding agent comprises 85 to 92 percents of cement (weight), 5 to 10 percents of silicon ash, and rubber powder, early strength admixture, water reducing agent and paint. The ash collection ratio is 4.0 to 6.0; the water cement ratio is 0.30 to 0.40; dry power shaped binding agent, aggregate and water are added in a concrete agitator according to the blending ratio so as to be churned into a mixture with uniform and proper dryness and humidity, which is then is used for paving and construction after being flattened; a low frequency flat oscillator is used for vibrating, compacting and leveling on the surface; the water is poured for maintenance; oily crylic acid resin is taken as mat coat agent to ensure that the color of the pavement is fresh. The chromatic pervious concrete pavement material and the construction process thereof have the advantages that steel-making industrial waste residue is adopted as the aggregate to change waste into valuables; the problem of low strength of the non-sand water permeability concrete material with a plurality of holes is solved by lower cost; compared with the high molecule permeable material, the cost is low, the strength is high, and the ageing resistance is good; compared with the sintering ceramics permeable material, the cost is low, the energy consumption is reduced, and the permeability effect is strong.

The invention provides an environmentally-friendly aqueous spray paint liquid, a propellent, an aerosol coated environmentally-friendly aqueous spray paint and a preparation method of the paint. The liquid comprises, by weight, 30-45 parts of aqueous resin, 5-15 parts of a pigment, 15-30 parts of a cosolvent, 20-35 parts of water and 0.5-2 parts of an assistant. The environmentally-friendly aqueous spray paint liquid adopts an aqueous resin system, so a whole paint film has a good hydrophobic and oleophobic effect, and improvement of the quality of spray paint products is facilitated; water is used to substitute parts of a solvent, so the VOC is reduced, and environmental protection is realized; and the produced environmentally-friendly aqueous spray paint has good sprayability and a high spray rate, and a film formed by the paint has high fullness, excellent hardness, adhesion, glossiness, flexibility and impact resistance, and has abundant and gorgeous colors, excellent decorative effect, good ageing resistance, and extremely good antirust and protection functions.

The invention discloses a protective sealing door for an underground refuge chamber. The protective sealing door comprises a door frame and a door plate, wherein the door plate is arranged on the door frame through a rotation shaft; a locking mechanism for locking the door plate on the door frame is arranged on the door plate, a plurality of first reinforcing ribs for reinforcing the strength of the door plate are arranged in the door plate; heat-insulating materials, namely aerogel heat-insulating felts are filled among the reinforcing ribs; at least two annular sealing rings, namely flame-resisting sealing rings are arranged at the joint of the door plate and the door frame; and the periphery of the door plate is locked by the locking mechanism. According to the protective sealing door, the aerogel heat-insulating felts which can bear the temperature of 1,400 DEG C to the maximum are filled in the door plate, so that the door plate can resist high temperature generated during explosion, and the high temperature is insulated out of the refuge chamber; at least two sealing rings which are made of flame-resisting, anti-static, high temperature-resisting and oil-resisting materials are arranged on the contact surface of the door plate and the door frame, so that the protective sealing door has a good sealing effect.

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.

An anti-glare hard coating solution is provided to retain good physical properties needed for hard coating films, and to suppress a peeling-off or curling phenomenon of a hard coating layer. An anti-glare hard coating solution includes (A) 5-50wt% of organic-inorganic silica particles in which a multi-functional silane compound comprising multi-functional (meth)acrylate represented by the following formula 1 is chemically bound to hydroxyl groups on the surface of the silica particle, (B) 5-40wt% of multi-functional (meth)acrylate, (C) 0.1-10wt% of an initiator, and (D) 1-20wt% of silicon fine particles, based on 100wt% of the hard coating solution.

The invention discloses a dendritic organic-inorganic hybrid water-borne nano polyurethane-epoxy anticorrosive coating and a preparation method thereof. Compositions of the coating mainly comprise dendritic organic-inorganic hybrid water-borne nano polyurethane-epoxy emulsion, anticorrosive pigment and filler, pigment dispersing agent, a film forming aid, a water-based additive, a cross-linking curing agent and deionized water, wherein the dendritic organic-inorganic hybrid water-borne nano polyurethane-epoxy emulsion is prepared by the following steps: prepolymerizing a polyurethane hydrophilic branch; preparing a dendritic polyurethane intermediate product by adopting hyperbranched synthesis technology; inoculating organic-inorganic hybrid into a nano material by adopting a in-situ polymerization; and simultaneously grafting epoxy resin with hydroxyl; and the prepared emulsion is compounded with the anticorrosive pigment and filler and the like to prepare the anticorrosive coating. The anticorrosive coating radically solves the VOC pollution problem of solvent-type anticorrosive coating, and simultaneously solves a series of problems such as poor roughness, weatherability, ageing resistance, alkali resistance and solvent resistance of the conventional water-borne anticorrosive coating.