543results about How to "Cold-resistant" patented technology

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.

The present invention relates to fertilizer preparing technology, and is especially one kind of foliage fertilizer containing amino acid and with fast acting and its preparation process. The foliage fertilizer includes potassium dihydrogen phosphate 2-4 weight portions, copper sulfate 0.3-0.6 weight portions, ferrous sulfat 0.4-0.8 weight portions, magnesium sulfate 0.4-0.8 weight portions, zinc sulfate 0.3-0.6 weight portions, borax 0.4-0.8 weight portions, manganese sulfate 0.2-0.4 weight portions, calcium sulfate 0.2-0.4 weight portions, urea 2-4 weight portions, honey 0.1-0.3 weight portions, milk 0.5-1.0 weight portions, water soluble vitamins electrolyte 0.02-0.04 weight portions, amino acid 0.5-1.5 weight portions, fish liver oil 0.02-0.04 weight portions, vitamins B 0.04-0.12 weight portions. The foliage fertilizer has rich nutrients and pH 5.5-6.5 after being diluted, is suitable for foliage absorption and may be used to replace root applying organic fertilizer.

The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a high 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, 30-70 parts of filling agent, 31-70 parts of plasticizer, 1-10 parts of hot-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 hot temperature resistant performance of the modified material manufactured by the preparing method is fine; the maximum usage temperature can reach up to 135 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 high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material has the advantages of being simple in process, convenient to control and operate, stable in quality, and high in production efficiency. In addition, the preparation method of the high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material can be used for a large-scale industrial production.

The invention relates to the technical field of PVC (Polyvinyl Chloride) composite materials and particularly relates to a waste PVC and fly ash composite material and a preparation method thereof. The waste PVC and fly ash composite material comprises the following raw materials according to parts by weight: 80-120 parts of waste PVC, 35-55 parts of fly ash, 3-10 parts of plasticizer, 1-2 parts of flame retardant, 0.5-2 parts of stabilizer, 0.5-2 parts of impact modifier, 0.3-1 part of lubricant and 0.1-0.5 part of antioxidant. The preparation method comprises the following steps of: weighing all the raw materials according to the parts by weight, mixing, stirring, extruding through a twin-screw extruder for granulation, chopping and air-cooling to obtain the waste PVC and fly ash composite material. The waste PVC and fly ash composite material prepared by the preparation method has excellent heat resistance, high strength, good flame retardant effect, high compression performance and toughness, and excellent processing performance and comprehensive performance; and the additive amount of renewable resources in the waste PVC and fly ash composite material reaches 90%-95%, thus lowering the production cost, reducing the environmental pollution, and bringing good economic benefit and social benefit.

The invention provides a preparation method of a polyesteramide hot melt adhesive with a low melting point, which mainly comprises the following steps of: (1) carrying out an esterification reaction on terephthalic acid, propylene glycol and diglycol under the action of a tetrabutyl titanate catalyst; (2) adding isophthalic acid, aliphatic dicarboxylic acid, decamethylene diamine and caprolactam into the products of the step (1) to carry out esterification and amidation reactions; and (3) adding 2,6-tertiary butyl-4-methylphenol as a polycondensation stabilizer into the reaction system, and carrying out copolycondensation under reduced pressure to obtain a copolymer. The obtained polyesteramide hot melt adhesive has the advantages of good heat stability, heat resistance, cold resistance, quick solidification and the like, is widely applied to the adhesion of synthetic fiber and is especially applicable to nylon products.

The invention relates to the technical fields of color master batches and preparing technologies thereof, in particular to a preparing technology for color master batches, and particularly discloses a preparing technology for color master batches for high-speed spinning fibers. The preparing technology includes the steps of carrier grinding, coloring material grinding, matched material grinding, assistant grinding, mixed grinding, high-speed grinding, extrusion prilling and drying. The color master batches prepared with the technology can be easily mixed with PET product plastic, and the even coloring effect can be achieved. Dispersibility, coloring strength and covering power are improved, weather resistance, acid resistance, heat resistance and cold resistance are achieved, the chemical stability of pigment is kept, and the color master batches are more environmentally friendly and healthier in the use process.

The present invention relates to a thermoplastic foaming polyurethane fiber board, a production method and uses thereof. The thermoplastic foaming polyurethane fiber board comprises an A surface layer, a B middle layer and a C bottom layer, wherein the A surface layer, the B middle layer and the C bottom layer are integratedly compounded from top to bottom, the A surface layer is a sheet material prepared by carrying out mixing calendaring on a TPU resin, a filler, a fire retardation agent, a stabilizer, a lubricant and a colorant according to a certain ratio, the B middle layer is a layer prepared by foaming the sheet material prepared by carrying out mixing calendaring on a TPU resin, a filler, a fire retardation agent, a stabilizer, a lubricant and a colorant according to a certain ratio, and the C bottom layer is a layer prepared by drying a fiber cloth impregnated with a TPU composition. The thermoplastic foaming polyurethane fiber board can be used as flooring boards, wall panels, roof hanging plates and indoor partition boards, and can be used for production of furniture materials and various building materials.

The invention provides a high-wear-resistance transparent TPU spherical film and a preparation method thereof. The high-wear-resistance transparent TPU spherical film is prepared by mixing and tape-casting the following components in parts by weight: 60-90 parts of polyurethane-nanopowder complexing agent, 2-10 parts of chain extender, 0.3-2 parts of antioxidant, 1-4 parts of hydrolysis stabilizer, 0.8-3 parts of slipping agent, 0.8-3 parts of antiblocking agent, 1-10 parts of filling agent and 1-3 parts of flame retardant. The TPU spherical film material prepared by modifying and creating all components and preparation proportion of the TPU spherical film has unique technological advantages of being high in wear resistance, transparency and hydrolysis resistance properties, good in elasticity, cold-proof, durable, environment-friendly in materials, free from any hidden injury to a human body, printable, and capable of performing high-frequency welding and the like, the wide use of the TPU special film material in a plurality of fields can be promoted, and the TPU spherical film material has wide market prospects.

A manufacture method of vacuum glass belongs to the glass manufacturing technology field, including steps as follows: a piece of sheet glass and a piece of convex glass are cut according to requirement, and edging process is implemented according to requirement; a lined adhesive glass film is adopted to overlap the surrounding edges of the sheet glass and the convex glass and then is put on a glass fixture into a vacuum lined adhesive furnace, which is pumped to be vacuum. The furnace is heated for 1-3h at 140-160 degree Celsius to fuse the glass and the film; the glass is taken out of the furnace after being cooled naturally, and protective sealant is used to seal and reinforce the vacuum glass. The production process of the invention is easy to be operated and is constructed through connecting the convex glass and the sheet glass directly, which leads to the more stable support in the hollow region of the two-layer glass. The lined adhesive glass film adopted for the sealing of the surrounding edges has the advantages of strong heat resistance and cold resistance and high mechanical strength and can keep various physical performance indexes within the range of 40 degree Celsius subzero to 120 degree Celsius above aero stable. Vacuum glass can be pumped sealed in batches to realize the highly efficient production.

The structure of a wear-resistant, drag-resistant and low-temperature resistant flexible cable comprises a cable core, wherein the cable core is formed by twisting three main wire cores, three ground wire cores and a cable core gap semiconductive filler, each main wire core comprises a cross-linking wire core formed by co-extruding a conductor, a semiconductive nylon strap, a conductor shielding layer, an insulation layer and an insulation shielding steam continuous vulcanization layer, each ground wire core comprises a conductor and a semiconductive material steam continuous vulcanization extruded on a surface of the conductor, an isolation strip, an inner sheath, a fiber weaving reinforcement piece and an outer sheath are sequentially applied outside the cable core to form a finished cable, the conductors adopt tin-plated annealed copper conductors, filaments of the tin-plated annealed copper conductors are more slim, and the diameter ranges of the filaments are 0.1-0.41 millimeter. A cable fabrication method comprises the steps of fabricating the main wire cores and the ground wire cores; fabricating the cable core; winding an isolation strip; extruding the inner sheath; weaving the reinforcement layer; and performing steam continuous vulcanization extruding or radiating the cross-linking outer sheath. The cable fabricated according to the method can conform to the design and application requirements, and meanwhile, the qualified rate reaches over 99%.

The invention relates to a PVC (Polyvinyl Chloride) plastic floor, and discloses a middle layer material for latching floors and a preparation method thereof. The middle layer material consists of the following raw materials in parts by weight: 100-200 parts of PVC, 1-5 parts of stabilizer, 20-40 parts of plasticizer, 0.1-1 part of carbon black, 400-600 parts of calcium carbonate and 5-10 parts of nitrile rubber. According to the preparation method, the nitrile rubber is added, so that the mixing processing is convenient, the toughness of the middle layer material is improved and the strength of the latching tension between products is improved at the same time. Compared with the existing plastic floors, a floor product obtained by thermal compounding between the middle layer material and a wearing layer, a printing color films and a bottom layer material has strength, heat resistance and cold resistance.

The invention provides high-abrasion-resistance transparent thermoplastic polyurethane elastomer for a ball film and a manufacturing method of the high-abrasion-resistance transparent thermoplastic polyurethane elastomer. The thermoplastic polyurethane elastomer is made of nano-modification TPU composite materials, and the nano-modification TPU composite materials are formed by mixing, by weight, 70-90 parts of polyurethane-nano-powder composite components, 3-10 parts of chain extenders, 0.5-2 parts of antioxidants, 1.2-4 parts of hydrolytic stabilizers, 1-3 parts of slipping agents, 1-3 parts of antiblocking agents, 3-20 parts of fillers and 0.8-3 parts of fire retardant. The nano-modification TPU composite materials manufactured by modifying and innovating all raw material components and the configuration proportion of the TPU composite materials have the unique advantages of being high in hardness and abrasion resistance, strong in elasticity and toughness, high in transparency, high in hydrolysis resistance, good in environmental protection, capable of achieving high-frequency welding and the like, the wide application of the TPU materials is promoted, and the wide market prospect is achieved.

The invention discloses a waterborne PU high smooth wax resin for synthetic leather and the resin comprises the following raw materials by weight percent: 30-40% of waterborne silicon-fluorine resin,20-30% of waterborne polyurethane, 10-30% of water, 0.2-0.8% of waterborne wax emulsion, 1-3% of organic silicone oil smoothing agent, 0.5-1% of organic silicone flatting agent, 2-5% of organic silicone defoamer and 0.5-2% of waterborne polyurethane thickener. The waterborne PU high smooth wax resin for synthetic leather provided by the invention uses water as solvent instead of toxic solvents such as dimethyl formamide, butanone and the like and has the advantage of noninflammability, safety, environmental protection, cost-saving and the like. The finished product prepared from the waterbornePU high smooth wax resin for synthetic leather provided by the invention has full hand feeling, high luster and high luminance, extremely smooth waxy feeling, delicate texture and good air permeability; and the prepared synthetic leather has good comprehensive effect in hand feeling, smoothness, water resistance, waxy feeling and the like.

The fish skin leather processing method includes painting acrylic resin onto tanned fish skin, the first ironing and shaping in leather ironing machine after drying, spraying the mixture of polyurethane and acrylic resin onto the fish skin, the second ironing and shaping in leather ironing machine after drying, spraying the mixture of nitrocellulose brightener and slip agent onto the fish skin, the third ironing and shaping in leather ironing machine after drying, and spraying the mixture of feeling agent and waterproof agent onto the fish skin. The advantages include good feeling, high tensile strength, cold resistance, water proofing, no delaminating, high penetrating and beautiful grain of the processed fish leather; low processing cost, less pollution, etc. The skin leather is suitable for making various leather products.

The invention discloses a water-based PU high solid resin combination for synthetic leather, which comprises the following materials by weight percent: 25 to 35 percent of water-based polyurethane resin, 45 to 55 percent of water, 10 to 20 percent of modified organic silicon polymer, 0.5 to 1.5 percent of organic silicon flatting agent, 1 to 3 percent of organic silicon foam killer and 1.5 to 4.5 percent of water-based polyurethane thickening agent. The water-based PU ironing finishing agent has the advantages that the mixture ratio of the component is scientific and reasonable, and the components are coordinated with each other and act together; the high solid resin combination has the advantages of good film reforming property, firm bonding, solvent resistance, cold resistance, hydrolysis resistance and thermosenescence resistance of coating; the finished product made of the synthetic leather, the surface of which is treated by the high solid resin combination, has the advantages that the original effect of the leather surface is not affected, raised patterns on the leather surface are sufficient in contrast to the leather sole after the leather surface is treated and modified, and the leather surface has unique high solid effect.

The invention relates to a method for catalytic conversion preparation of a hexahydric alcohol from jerusalem artichoke as a raw material. The method is characterized in that a raw material of natural biomass jerusalem artichoke (mainly comprising fructose-based polysaccharide carbohydrates) undergoes a reaction at a temperature above 20 DEG C under hydrogen pressure of 1 to 13MPa in the presence of water as a solvent and a catalyst or a mixed catalyst for at least 5 minutes, wherein the catalyst comprises acidic carriers and one or more of transition metals of iron, cobalt, nickel, copper, ruthenium, rhodium, palladium, iridium and platinum loaded on the acidic carriers; and the mixed catalyst comprises solid acids and a metal hydrogenation catalyst comprising carriers and one or more of transition metals of iron, cobalt, nickel, copper, ruthenium, rhodium, palladium, iridium and platinum loaded on the carriers. Through one-step catalytic conversion, high-efficiency, high-selectivity and high-yield preparation of a hexahydric alcohol such as mannitol and sorbitol from jerusalem artichoke as a raw material is realized.

The invention relates to chromatophilous polyurethane resin for synthetic leather and a preparation method of the polyurethane resin. The polyurethane resin comprises the following components by mass percentage: 15-20% of polyester polyol EG1000, 3-5% of polyester polyol PCL2000, 15-20% of diphenyl-methane-diisocyanate (MDI), 0.1-0.2% of epoxy resin, 0.05% of triphenyl phosphite, 0.02% of dibutyltin dilaurate, 0.01% of silicone oil, 0.8-1.5% of glycol, 2-3% of 1,4-butanediol, 0.4-0.6% of alcohol, and the balance of solvent, wherein the solvent comprises the following components by mass percentage: 20-25% of dimethyl formamide (DMF), 15-20% of butanone, and the balance of methylbenzene. The chromatophilous polyurethane resin for the synthetic leather and the preparation method have the benefits that the polyurethane resin synthesized by the preparation method is chromatophilous, high in fixation, and uniform in coloring, and has good mechanical properties such as water resistance, solvent resistance, cold resistance and folding resistance after being produced into the leather.

The invention relates to a CPE/CPVC rubber-plastic thermal-insulation material and a preparation method thereof and belongs to the field of polymer synthesis and processing application. The CPE/CPVC rubber-plastic thermal-insulation material is prepared from 100 parts by mass of CPE/CPVC resin, 1.5-10 parts by mass of a stabilizing agent, 0.3-3 parts by mass of a composite lubricant, 10-50 parts by mass of a plasticizer, 0.3-5 parts by mass of a foaming agent, 0.4-1.0 part by mass of a foaming aid, 1-4 parts by mass of a foaming adjustment agent, 0-15 parts by mass of a fire retardant and 0-20 parts by mass of a filling material. The CPE/CPVC rubber-plastic thermal-insulation material has excellent performances such as softness, flexing damage resistance, cold resistance, heat resistance, flame retardation, water resistance, low heat-conduction coefficient, cushioning effect and sound absorption and has ideal use effects in the aspect of thermal insulation for heat loss prevention. The preparation method of the CPE/CPVC rubber-plastic thermal-insulation material is simple and continuous, has high production efficiency, is suitable for streamline batch production and can be widely used in industries of building, light textile, medicine, chemical engineering, metallurgy and ship-building.

The invention discloses corrosion resistant ceramic and a preparation method thereof. The corrosion resistant ceramic is prepared from the following raw materials in parts by weight: 12-14 parts of quartz, 11-13 parts of forsterite, 3.5-3.8 parts of sodium oxide, 4-6 parts of titanium dioxide, 1-3 parts of red stoneware ore, 40-45 parts of clay, 18-20 parts of deionized water, 8-10 parts of kaolinite, 16-18 parts of feldspar, 5-7 parts of magnesium oxide, 3-5 parts of tetraethyl orthosilicate, 1-3 parts of zinc tetroxy chromate, 15-20 parts of nickel powder, 8-15 parts of copper powder and 13-15 parts of an assistant. The assistant is prepared from the following components in parts by weight: 5-7 parts of zirconite, 12-18 parts of kaolinite, 4-6 parts of clay, 10-15 parts of deionized water, 2-4 parts of graphite powder, 1-3 parts of feldspar, 7-9 parts of polyethylene glycol and 0.3-0.8 part of nano boron fiber.