33results about How to "With cold resistance" patented technology

The invention discloses an ecological BB fertilizer, relating to a mutifunctional ecological environment friendly compound fertilizer, which is formed by mixing functional urea, controllable slow release sulfurcoated urea, monoammonium phosphate, diammonium phosphate, potassium sulfate particle (or potassium chloride), agricultural magnesium sulfate particle, ammonium sulfate, bio-organic inorganic compound fertilizer, endophytic PASP fertilizer synergist DA-6, plant growth regulator and trace elements. Special ecological BB fertilizer for different plants can be prepared by soil testing formula, according to different farm crops and different soil structure. The ecological BB fertilizer can take effect for 3-120 days, the nutrition release is balanced, biological stress of the farm crop such as drought resistance, cold resistance, salt resistance, or the like can be improved. The product of the invention has great operation significance for increasing yield of grain, reducing production cost, steadily increasing grain production, keeping rural incomes growing, improving utilization rate of the fertilizer, reducing fertilizer waste, protecting ecological environment, guaranteeing farm crop quality and safety, and ensuring sustainable development of the agriculture.

The invention discloses a composite material safety toe cap which is formed by bonding and pressing multiple layers of glass fiber cloth coated with resin paste, wherein the resin paste comprises polyester resin, an initiator, a low-shrink additive, an inner release agent, a thickener and a crosslinking agent; and the invention also discloses a method for manufacturing the composite material safety toe cap. The formula of the composite material safety toe cap provided by the invention is scientific and reasonable in design, has good mechanical performance and high strength, greatly enhances the impact resistance, effectively avoids the phenomena that the foot of a user kicks a foreign object or is bruised by the falling foreign object and the toes are injured, and realizes high safety; the composite material safety toe cap has the advantages of corrosion resistance, high temperature resistance, cold resistance, acid resistance and the like, and the service life is greatly prolonged; and the composite material safety toe cap can pass the International test standards such as European Union EN12568-S, Canada CSA-Z195 and the United States ASTM-F2413 and the like. The method provided by the invention has a simple manufacturing technology, is easy to realize and can quickly produce a composite material safety toe cap.

The invention discloses a method for processing a faux suede membrana dermalis coating. The method comprises the following steps: (1) bottom layer rubber coating preparation, namely, evenly stirring 100 parts of polyurethane resin, 0.5-1 part of polyurethane thickening agent, 0.5-2 parts of melamine cross-linking agents, 4-10 parts of foam stabilizers and 1-3 parts of foaming agents and increasing the foaming size to 1-3 times, (2) facial layer rubber coating preparation, namely, evenly stirring 100 parts of coldness-resistant lightless coating adhesive, 5-10 parts of amidogen modified polysiloxane, 0.5-2 parts of cross-linking agents and color paste, (3) adopting a dry method to coat directly, increasing the dry weight of the bottom layer rubber coating by 5-8g/m2, using a planishing mill for calendaring, and increasing the dry weight of the facial layer rubber coating by 7-10g/m2. The method is simple in technology and feasible, improves the distortion and bending resistance, elasticity and softness of fabric, improves dry-wet friction firmness, wear-resisting performance and coldness resistance of the fabric, and does not influence in index of the fabric.

The invention discloses a cold-resistant cable with a flexible protective layer. The cable is characterized by comprising the following raw materials in parts by weight: 80-120 parts of PVC (polyvinyl chloride) resin SG-2, 20-40 parts of TOTM (trioctyl trimellitate), 3-5 parts of epoxidized soybean oil, 6-10 parts of 70 chlorinated paraffin, 5-7 parts of antimony oxide, 0.3-0.7 part of antioxidant, 8-12 parts of calcined china clay, 3-7 parts of activated calcium carbonate, 5-9 parts of calcium-zinc compound stabilizer, 0.3-0.7 part of UV-531 and 20-40 parts of DOS (dioctyl sebacate). The cable has the beneficial effects that the cable has high temperature and cold resistance, is environment-friendly and practicable and can avoid open fire burning in the process of approaching fire sources; flames only spread in a limited range; residual flames or residue burning fire can be extinguished by self in a limited time; the outer protective layer of the cable can only become flexible because of approaching the fire sources and can not catch fire, thus protecting all kinds of other equipment and avoiding greater losses; in the process, the environment-friendly flame-retardant cable can not generate smoke or is low in smoke and can not generate plenty of heavy black smoke as ordinary electric wires, thus minimizing harms to human bodies.

The invention provides a halogen-free flame-retardant silicone rubber wire and cable material and a preparation method thereof. The halogen-free flame-retardant silicone rubber wire and cable material comprises the following components in parts by weight: 30-40 parts of aluminum hydroxide, 5-8 parts of aluminum hydroxide surface modifier, 4-6 parts of a mixture of multiple halogen-free flame retardants and 90-120 parts of high-temperature-resistant silicone rubber compound, wherein the mixture of multiple halogen-free flame retardants contains no aluminum hydroxide. The halogen-free flame-retardant silicone rubber wire and cable material has excellent flame retardance and excellent insulativity, mechanical property, aging resistance and environmental protection property; and the preparation method of the halogen-free flame-retardant silicone rubber wire and cable material is simple in process, easy to operate, high in production efficiency and low in cost.

The invention discloses a cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell. The cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell comprises, by mass, 20-25 parts of resin powder, 15-20 parts of plasticizer, 5-10 parts of lubricant, 10-15 parts of carbon black, 8-13 parts of stabilizer, 9-14 parts of polyethylene glycol, 17-22 parts of flame retardant, 7-12 parts of Elvaloy and 16-21 parts of nitrile butadiene rubber powder. The cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell and a preparation method have the advantages that since polyethylene glycol is added into a preparation process, the intrinsic pungent smell of the materials can be eliminated; the plasticizer, the Elvaloy and the nitrile butadiene rubber powder are added into the preparation process, so that the prepared material is resistant to cold and oil; the nitrile butadiene rubber powder is capable of assisting the Elvaloy in preventing the plasticizer from separating out, and the Elvaloy is a non-migrating terpolymer and endows a PVC (polyvinyl chloride) polymer with high durability and high heat stability.

The invention provides a silicon/fluoroether/fluorosilicone composite rubber material. The silicon/fluoroether/fluorosilicone composite rubber material is formed by compounding silicon rubber, fluoroether rubber and fluorosilicone rubber according to a mass ratio 1:(2-5):(2-4), wherein the silicon rubber is fluorine-containing ionic liquid-modified graphene-modified silicone rubber, the fluoroether rubber is fluorosilane-modified graphene-filled fluoroether rubber, and the fluorosilicone rubber is hydroxyethyl methacrylate-modified graphene-filled fluorosilicone rubber. On one hand, the silicone rubber, the fluoroether rubber and the fluorosilicone rubber with excellent properties are compounded so as to integrate the advantages of individual rubber products and overcome the correspondingdefects of single products; the obtained composite rubber integrates the advantages of high temperature resistance, low temperature resistance, aging resistance and good stability of the silicone rubber, has the characteristics of heat resistance, cold resistance, solvent resistance and chemical resistance of the fluorosilicone rubber, and has the characteristics of high temperature resistance, strongly corrosive medium resistance, superstability of the fluoroether rubber, and is very excellent in properties and wide in industrial application prospect.

The invention provides reclaimed rubber and a tire made thereof. The reclaimed rubber comprises the following materials: waste tire rubber powder, glass fibers, nylon fibers, acrylic polyurethane, polyamide, styrenated phenol, 3-diphenylguanidine, polystyrene resin, an epoxy resin composition, abietic acid, rosin anhydride, carbon black, aromatic disulfide and zinc salt. The tire made of the reclaimed rubber comprises a tire body; the tire body comprises two tire side surfaces and a tire peripheral surface positioned between the two tire side surfaces; air guide blocks are distributed on at least one tire side surface, and an air guide groove is formed between the two adjacent air guide blocks; multi-ring brake pattern blocks are arranged on the tire peripheral surface and are symmetrically arranged about a center line of the tire peripheral surface, a flow guide groove is formed between the two adjacent brake pattern blocks on the same ring, and the air guide groove is connected with the flow guide groove. The reclaimed rubber provided by the invention is high in mechanical strength, strong in elasticity, aging-resistant, cold-resistant, high temperature-resistant and strong in braking performance and driving performance, and meanwhile, the energy consumption is reduced.

The invention provides a watertight digital communication network cable for ships and a preparation method thereof. The watertight digital communication network cable comprises four pairs of network cable cores, a filling core, a sealing layer, a shielding layer, an A wrapping layer, a braided layer, a B wrapping layer and a sheath layer. Each pair of network cable cores comprise two conductors. Each conductor is externally provided with an insulation layer; the four pairs of network cable cores are externally wrapped by the shielding layer; the shielding layer is externally wrapped by the A wrapping layer; the A wrapping layer is externally wrapped by the braided layer; the braided layer is externally wrapped by the B wrapping layer; and the B wrapping layer is externally wrapped by the sheath layer. The advantages are that 1) the watertight digital communication network cable can prevent water from leaking from the internal portion of the cable structure into other cabins or into instrument equipment; 2) the watertight digital communication network cable has the advantages of flexibility, ageing resistance, ozone resistance, oil resistance, flame retardance, cold resistance, water absorption, longitudinal water seal, and can maintain excellent electrical and mechanical properties under hostile environment; and 3) the watertight digital communication network cable has the advantages of high impedance consistency, low attenuation and high near/far-end crosstalk disturbance guard degree.

The invention discloses an environment-friendly DC 1500V mouse-proof and anti-termite cable used for a photovoltaic power generation system. The cable comprises a cable body which comprises two cable units. The two cable units are symmetrically arranged. Each cable unit comprises copper conductor wire cores, an irradiation crosslinked flame-retardant polyolefin insulating layer, a flame-retardant tape layer, an oxygen insulation layer and an irradiation crosslinked flame-retardant polyolefin external sheath which are arranged from inside to outside in turn. The two cable units are connected into an integrated structure through the irradiation crosslinked mouse-proof and anti-termite flame-retardant polyolefin external sheath. The material structure of the high-temperature-resistant 150 DEG C irradiation crosslinked flame-retardant polyolefin insulating layer and the high-temperature-resistant 150 DEG C irradiation crosslinked mouse-proof and anti-termite flame-retardant polyolefin external sheath is adopted so that the cable has the cold-resistant, heat-resistant, ultraviolet-resistant, ozone-resistant and mouse-proof and anti-termite characteristics and has high mechanical strength and acid and alkali resistance, moisture and heat resistance and halogen-free, low-smoke and flame-retardant performance and thus the demands of the market and the customers can be fully met.

The invention discloses heat insulation and preservation glass. The heat insulation and preservation glass is prepared from, by weight, 4-5 parts of calcium hexaluminate, 2-4 parts of nano cerium oxide, 5-8 parts of nanometer titania, 0.5-1.5 parts of palladium nitrate, 60-80 parts of silicon dioxide, 3-6 parts of sodium hydrogen phosphate, 4-6 parts of sodium pyrophosphate, 2-15 parts of boric oxide, 4-6 parts of sodium oxalate, 10-25 parts of aluminum oxide, 5-10 parts of poly-amino resin, 1-2 parts of disulfoxide alkylene diol phenyl ether, 2-2.5 parts of dodecyl aminopropionic acid, 1-1.5 parts of methyl methacrylate, 1-1.5 parts of modified polysiloxane, 1-1.5 parts of zinc oxide, 1-1.5 parts of allyl heptanoate and 1-1.5 parts of methyl methyacrlate. The glass has the advantages of insulating heat, preserving heat and resisting cold, explosions, corrosion, bacteria and static.