31results about How to "Excellent wear resistance and weather resistance" patented technology

The invention provides a low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material and a preparation method thereof. The low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material comprises the following components in parts by weight: 100 parts of basic material, 80-100 parts of flame retardant A, 10-20 parts of flame retardant B, 0.8-2 parts of antioxidant, 0.4-2 parts of lubricant, 0.8-3 parts of coupling agent, 25-40 parts of reinforcing agent and 0.4-0.6 parts of vulcanizing agent, wherein the basic material is a combination of ethylene-vinyl acetate (EVA) and methyl vinyl silicone rubber; the flame retardant A is a combination of magnesium hydroxide and antimony trioxide; the flame retardant B is a combination of zinc oxide and molybdenum trioxide; the antioxidant is a combination of pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), (antioxidant 1010) and tri(2,4-di-tert-butylphenyl) phosphite (antioxidant 168); and the reinforcing agent is fumed silica. The low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material has the following characteristics of high abrasion resistance, high flame retardance, good oil resistance and chemical corrosion resistance, low temperature resistance, aging resistance, and excellent mechanical properties and the like. The invention further provides the preparation method of the low-smoke, halogen-free, high-flame-retardance, oil-resistant and cold-resistant cable material.

The invention discloses an electroconductive carbon fiber production technology. An electroconductive carbon fiber consists of an inner layer and an outer layer, wherein the section of the inner layer is in a three-leaf shape, the cylindrical outer layer wraps the inner layer, the inner layer comprises, by mass, 80-150 parts of polyamide-6, and the outer layer comprises, by mass, 40-80 parts of polyamide-6, 6-12 parts of carbon black, 1-3 parts of graphene powder and 0.1-1 part of titanium dioxide. The electroconductive carbon fiber production technology has the advantages that the inner layer and the outer layer of the electroconductive carbon fiber are replaceable; with the carbon black and the graphene powder added for improving fiber performance, the electroconductive carbon fiber not only is of high strength, high elasticity and high resistance to wear and weather as same as common polyamide fibers, but also overcomes the defect that the polyamide fibers are prone to generation and accumulation of static electricity, thereby being excellent in antistatic performance, endowing people with better wearing experience and being applicable to flammable and combustible occasions.

The invention provides an assembly type bamboo bridge. The assembly type bamboo bridge comprises bamboo longitudinal beams (1), bamboo transverse beams (2), bamboo panels (3), transverse pre-stressing tendons (4) and longitudinal pre-stressing tendons (16), the outer surface of a bamboo is sequentially and uniformly coated with a layer of waterborne polyurethane resin, a layer of polyurethane resin, a layer of waterborne polyurethane resin and a layer of resorcinol formaldehyde resin, and the expansion coefficients of the four coating layers are sequentially lessened from the outer surface of the bamboo to outside. The assembly type bamboo bridge provided by the invention has the advantages that the structural strength is large, the ductility is good, a selected material is environment-friendly, standardization degree and assembling degree of structural members are high, the structural integrity is good, the advantages of the material can be fully expressed, and the requirements on normal use and durability of a bridge structure can be met.

The invention discloses a wear-resistant and weather-resistant modified coating. The raw materials include fluorocarbon resin, caprolactone modified acrylic resin, styrene-acrylic emulsion, polyvinyl chloride resin, modified composite filler, modified adhesive, polyurethane, ortho Dioctyl phthalate, modified nano-montmorillonite, nano-titanium dioxide, sericite powder, magnesium hydroxide, ultrafine silica, calcined kaolin, kaolin, alumina, butyl acetate, sodium persulfate, fluorosilicone oil, Xylene, cyclohexanone, defoamer, silane coupling agent KH‑560, dispersant, silane coupling agent KH‑570, wetting agent and water. The modified coating of the invention has excellent wear resistance and weather resistance.

The invention discloses an elastic high-conductivity wool top fiber. The elastic high-conductivity wool top fiber comprises an inner layer and an outer layer; the inner layer has a triangular cross section, the outer circumference of the inner layer is coated with the outer layer, and the outer layer has a circular cross-sectional profile; the inner layer is prepared from, by weight, 65-75 parts of polyamide-6 and 30-36 parts of polyether polyurethane elastomers; the outer layer is prepared from, by weight, 60-70 parts of polyamide-6, 15-20 parts of polyparaphenylene hexamethylene diamine, 20-28 parts of elastomers, 3-5 parts of graphene, 6-8 parts of carbon black and 3.5-5.5 parts of nano fillers. The elastic high-conductivity wool top fiber has the advantages of low volume specific resistance, good and long-lasting conductivity, great antistatic property, soft hand feeling, high elasticity and strength, excellent wearing and weather resistance and the like. Therefore, the elastic high-conductivity wool top fiber is suitable for being prepared into various conductive fabrics with high wearing comfort.

The invention discloses a high-conductivity wool top fiber. The high-conductivity wool top fiber comprises an inner layer and an outer layer, wherein the cross section of the inner layer is triangular, the outer layer wraps the outer circumference of the inner layer, and the cross section of the outer layer is circular; the inner layer is prepared from, by weight, 65-75 parts of polyamide-6, 15-22parts of poly-p-benzoyl hexamethylenediamine, 10-14 parts of an elastomer, 4.5-6.5 parts of graphene, 6-10 part of carbon black and 6.5-10.5 parts of a nanofiller; the outer layer is prepared from 6-100 parts of polyamide by weight. The high-conductivity wool top fiber is formed by finely selecting raw materials, and the contents of various raw materials are optimized, so that the prepared high-conductivity wool top fiber has low volume resistivity, good electrical conductivity, long-lasting electrical conductivity and good antistatic performance, the high-conductivity wool top fiber also hasthe advantages of soft hand feeling, elasticity, higher strength, good wear resistance and weather resistance and the like, and therefore, the high-conductivity wool top fiber is suitable for being prepared into various conductive fabrics, is comfortable to wear, and is especially suitable for places sensitive to static electricity.

The invention provides an assembly type bamboo bridge. The assembly type bamboo bridge consists of bamboo longitudinal beams (1), bamboo transverse beams (2), bamboo panels (3), a transverse pre-stressing tendon (4) and a longitudinal pre-stressing tendon (16). All bamboos used by the assembly type bamboo bridge are soaked in a gum dipping tank which contains polyurethane resin and phenolic resin before being assembled, and boiled for 10-15 minutes at 100 DEG C-110 DEG C, wherein the volume ratio of the polyurethane resin to the phenolic resin is (2-2.5):1; and then, the bamboos are got out and dried, and a layer of waterborne polyurethane resin, a layer of polyurethane resin, a layer of waterborne polyurethane resin and a layer of resurcinolformaldehyde resin are uniformly coated on the outer surfaces of all bamboos in sequence. The assembly type bamboo bridge is large in structural strength, good in drawability, green and environment-friendly in used materials, standard in structural components, high in assembly degree, good in structural integrity, and capable of sufficiently bringing the advantages of the materials into play, and satisfying the normal use and durability needs of the bridge beam structure.

The invention discloses a high-heat-dissipation insulating composite coating used for supercapacitor shells. The high-heat-dissipation insulating composite coating used for supercapacitor shells is prepared from, by mass, 60 to 80 parts of epoxy resin, 20 to 35 parts of alkyd resin, 5 to 20 parts of liquid phenyl siloxane rubber, 3 to 6 parts of thiosemicarbazide, 40 to 60 parts of a nitride, 4 to 5 parts of tetrabutyl titanate, 2 to 5 parts of TTS, 5 to 7 parts of polydimethylsiloxane, 2 to 5 parts of a curing agent, and an appropriate amount of a solvent. The formula composition of the high-heat-dissipation insulating composite coating is reasonable; the raw materials are safe and easily available; the high-heat-dissipation insulating composite coating is prepared via steps such as heating, mixing, ultrasonic treatment, and grinding; the dispersibility of the raw materials is excellent; the obtained high-heat-dissipation insulating composite coating is uniform and flat; the heat dissipation performance and insulating properties of the high-heat-dissipation insulating composite coating are improved greatly via modification treatment of inorganic filling materials; the adhesive force of the high-heat-dissipation insulating composite coating is high; the high-heat-dissipation insulating composite coating possesses excellent flame resistance, wear resistance, and weather resistance, and is capable of improving application safety and prolonging the service life of capacitors obviously.

A high-strength and low-cost composite well lid comprises a fiber-reinforced bottom layer, a reinforcing steel bar padding layer and a high-hardness wearproof top layer. Pulverescent self-fabricated curing agents are formed by mixing the following materials, by weight ratio, 0.025 part of tertiary butyl ester, 0.015 part of methyl ethyl ketone peroxide, 0.6 part of zinc stearate, 0.02 part of calcium hydroxide, 0.8 part of styrene and 0.4 part of polystyrene, and different reinforcing materials are used in different parts of the well lid. The lower portion of the well lib is reinforced by using fibers to guarantee the bearing capacity of the well lid, net-shaped reinforcing steel bars and a large amount of padding are used in the middle portion of the well lid to improve the non-deformability of products, materials with high hardness and good wearproof and weather resistance performance are used on the upper portion of the well lid, and different patterns and different colors are designed and adopted. Thus, the manufactured well lid can meet the wearproof and weather resistance requirements, and has the advantages of being attractive and beautiful.

The invention discloses wear-resisting baked varnish for a photo frame. The wear-resisting baked varnish is composed of a material A, a material B and a material C, the mass ratio of the material A to material B to material C is y:x:z, and y, x and z meets the following function relation: y=k(x+z), wherein (x+z) is larger than 0, y is larger than 0, and k is 0.2-1.8. The material A is prepared from epoxy resin, soya oil acid, acrylic acid, styrene, benzoyl peroxide, phthalic anhydride, colopholic acid, methylbenzene, butyl cellosolve, neopentyl glycol, tri-carboxymethyl propane, polyolefin wax and a catalyst. The material B is prepared from water-borne acrylic acid modified alkyd resin, water-borne amino resin, butylcellosolve, water-borne resin white pulp, polytetrafluoroethylene, epoxy resin adhesive, self-lubricating paint, N,N-methyl formyl, propanel, an anti-settling agent BYK-410, a flatting agent and an antifoaming agent. The material C is prepared from FEVE resin, hydroxy-containing acrylic resin, cyclohexanone, pigment, a drier, aliphatic series isocyanate and wear-resisting powder. The baked paint has excellent wear-resisting performance.