128results about How to "Good mold resistance" patented technology

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 water-based energy storage luminescence floor coating, comprising a main agent and an amine curing agent, wherein, the main agent comprises epoxy resins, surface modified noctilucent powder, solid fillers, auxiliaries and solvents. The method is characterized by first evenly mixing the modified noctilucent powder, the epoxy resins, the solid fillers, the auxiliaries and the solvents in proportion, rubbing the mixture to obtain the main agents of the water-based energy storage luminescence floor coating, and then evenly mixing the main agent and the amine curing agentin proportion during coating.

The invention relates to a bamboo-based / thermoplastic plastic nanocomposite material and manufacturing technology thereof. The technology comprises the following steps of: using a thermoplastic plastic as a matrix, and using bamboo fibers as an enhanced phase; modifying the bamboo fibers through nano particles so as to improve the compatibility with the matrix, the flux flow rate and the mold resistance of the composite material; and manufacturing the bamboo-based / thermoplastic plastic nanocomposite material through highly mixing, pelleting, extrusion molding, and other processing technology.The invention provides a bamboo-based / thermoplastic plastic nanocomposite material which has the advantages of high physical mechanical strength, high interface compatibility, high flux flow rate andhigh mold resistance. The bamboo processed wastes and wasted plastics are fully utilized, and the ecological environment is protected. The product can be applied to outdoor gardening landscape, outdoor furniture, outdoor floors, wall hanging boards, guardrails, trays, packaging cases and automotive interior decoration materials, and the like.

The invention belongs to the technical field of coatings, and relates to a high-temperature-resistant anticorrosive coating capable of being solidified at a room temperature. The high-temperature-resistant anticorrosive coating capable of being solidified at the room temperature is characterized by comprising the following components in parts by weight: 20-60 parts of organic silicon resin, 0-30 parts of temperature-resistant powder, 5-40 parts of inorganic coloring pigment, 5-35 parts of temperature-resistant anticorrosive filler, 0.2-10 parts of a promoter and 20-50 parts of a solvent. The high-temperature-resistant anticorrosive coating capable of being solidified at the room temperature has the beneficial effects that (1) the coating both has temperature resistance and corrosion resistance, the tolerable temperature of the coating can reach 500 DEG C, and three-proofing performance (salt mist resistance, damp and heat resistance and mycete resistance) is excellent; (2) the coatingcan be solidified at the normal temperature, the problem that a common organic silicon resin coating needs to be heated for solidification is solved, and the processing property is good; and (3) medium resistance is excellent, and the coating material can resist petroleum products such as jet fuel RP-3.

The invention discloses an ultraviolet-curable coating material with antibacterial and antioxidant effects. The ultraviolet-curable coating material is characterized by being prepared from the following raw materials in parts by weight: 40-45 parts of epoxy acrylate, 10-14 parts of polyurethane acrylate resin, 9-12 parts of 1,6-bis(acryloyloxy)hexane, 7-9 parts of methacryloyl chloride, 3-4 parts of 1-hydroxyl cyclohexyl phenyl ketone, 13-16 parts of ethoxylated triacrylate trimethylolpropane, 9-12 parts of o-methylphenyl phenyl glycidyl ether, 1-2 parts of polydimethylsiloxane, 1-2 parts of IPBC (Iodopropynylbutylcarbamate), 5-7 parts of clay and 4-5 parts of assistant. According to the coating material disclosed by the invention, IPBC is added as an antibacterial component, so that the coating material has a good antioxidant effect and an antifungal effect; the assistant is added, so that the coating material is good in leveling property, a uniform coating can be formed, and the coating material is high in curing speed and tough and has a strong adhesive force, and can be used for treating various sterile surfaces in public places.

The invention relates to the technical field of polyurethane elastomers, in particular to a flame-retardant mould-proof thermoplastic polyurethane elastomer composite material and a preparation methodthereof. The composite material is prepared from, by weight, 25-85 parts of TPU, 3-15 parts of SEBS, 5-70 parts of flame retardant, 1-5 parts of mould-proof agent, 0.5-5 parts of compatibilizer and 0.02-0.1 part of antioxidant. According to the thermoplastic polyurethane elastomer composite material, the raw materials are adopted, the weight ratio of all the raw materials is strictly controlled,and the prepared thermoplastic polyurethane elastomer composite material is excellent in flame retarding effect, good in mould-proof effect, high in strength, good in flexibility, high in elongation at break and excellent in mechanical property.

The invention belongs to the technical field of door seal materials, and relates to a modified polyvinyl chloride door seal and a preparation method thereof. The door seal is prepared from, by weight, 40-50 parts of polyvinyl chloride resin powder, 5-15 parts of anti-yellowing thermoplastic elastomer, 0-5 parts of 1,2-cyclohexane dicarboxylic acid di-isononyl ester, 5-20 parts of trioctyl trimellitate, 0-5 parts of dioctyl adipate, 5-10 parts of epoxidized soybean oil, 5-10 parts of polyester oligomer, 10-15 parts of filler, 1-3 parts of a stabilizer, 1-3 parts of a compatilizer, 1-3 parts of a lubricating agent and 0.1-1 part of pigment. Fat diisocyanate is two of hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HMDI). The defects that the hardness of a traditional soft PVC door seal is sharply increased at low temperature and elasticity becomes poor are overcome, the tensile strength and the breaking elongation of the door seal are improved, the welding angle pull force of the door seal is increased, and the service life of the door seal is prolonged.

The invention provides a polyvinyl chloride mixture, a door seal, a refrigerating device and a manufacturing method. The polyvinyl chloride mixture comprises the following components in percentage by mass: 40-50% of polyvinyl chloride resin powder, 25-35% of a plasticizer, 2-5% of an auxiliary plasticizer, 3-10% of elastomer, 1.5-2.5% of a thermal stabilizer, 10-20% of inorganic filler, 1-2% of a lubricant and 0.5-1% of an anti-mildew antibacterial agent. Through the technical scheme, adhesion and migration of the door seal between a liner HIPS or ABS and a PCM side plate and a spray plate are effectively improved, resilience and permanent compression deformation of the door seal are improved, twisting, dropping and other problems of the door seal are effectively improved, and durability of the door seal is obviously improved; the door seal has an anti-mildew antibacterial property, so that the quality of the door seal is improved and influence of mildewing of the door seal on a human body is avoided.

The invention relates to a phase change energy storage microcapsule taking polyurethane modified organic silicon resin as a shell material and a preparation method of the phase change energy storage microcapsule, and particularly discloses the preparation method which comprises the following steps: (1) uniformly mixing monomers for generating organic silicon resin, adding a catalyst, and prepolymerizing to obtain a prepolymer of polysiloxane; (2) adding the polyurethane prepolymer into the step (1), and carrying out a reaction to obtain a polyurethane modified organic silicon resin prepolymer;(3) uniformly mixing a core material with the shell material prepolymer to obtain a core material and shell material prepolymer mixture; (4) preparing an aqueous solution of a surfactant; and (5) mixing and emulsifying the core material and shell material prepolymer mixture and the aqueous solution of the surfactant to obtain an emulsion, adding a catalyst until the reaction is finished, separating, and drying to obtain the polyurethane modified organic silicon resin shell phase change energy storage microcapsule. The method is green, pollution-free and simple to operate, and the obtained microcapsule is smooth in surface, good in compactness, adjustable in phase change temperature, controllable in particle size, good in heat resistance and high in phase change enthalpy value.

A laminate composite wallboard panel is disclosed having multiple layers whose cross sections may contain internal and external non-uniformities and whose surfaces may be rough and non-uniform. The wallboard panel is similar in size and weight to a standard gypsum panel and can be handled and installed in a manner similar to such a panel. The wallboard panel also provides high degrees of noise attenuation, thermal insulation, fire resistance, shear strength, mold resistance and moisture resistance.

The invention discloses a flame retardant environment-friendly polysulfide sealant and a production method of the sealant. The sealant consists of a sealant component A and a sealant component B, wherein the sealant component A comprises the following components in parts by weight: 100-120 parts of polysulfide glue, 20-25 parts of butyl benzyl phthalate, 2-3 parts of nanosilver, 20-30 parts of nano calcium carbonate, 5-7 parts of aluminum hydroxide, 5-10 parts of nano titanium dioxide, 5-7 parts of epoxy resin, 20-28 parts of carbon black and 0.5-0.9 part of a coupling agent; the sealant component B comprises the following components in parts by weight: 50-60 parts of manganese dioxide, 20-30 parts of butyl benzyl phthalate and 1-2 parts of diphenylguanidine. According to the sealant, the nanosilver is added into the polysulfide sealant as an antifungal agent, aluminum hydroxide as a flame retardant and nano calcium carbonate, nano titanium dioxide and carbon black as reinforcing agents, so that the sealant satisfies the flame retardance requirement and the environment-friendly requirement of European Union ROHS (Restriction Of Hazardous Substances).

A hydrophilic film is formed on the surface of a metal material, inhibits the growth of condensation water, and provides mold resistance, and a hydrophilization treatment agent is used for forming the hydrophilic film. The hydrophilization treatment agent has one or more compounds selected from poorly water-soluble cerium compounds; and a hydrophilic film prepared from the hydrophilization treatment agent. The poorly water-soluble cerium compounds are one or more compounds selected from cerium carbonate, cerium fluoride, cerium fluoride, and cerium oxide. By forming the hydrophilic film on the surface of a metal material, the growth of condensation water can be inhibited, and the mold resistance can be provided.

The invention discloses an industrial water saving agent and a preparation method therefor. The preparation method comprises the steps: (1) proportioning 100 parts (by weight) of white oil (total volume), and adding 60% to 90% of the total volume of the white oil into a product pot for preheating; (2) adding the white oil remaining in the step (1) into a mixing pot for heating, adding 6.0 to 18.6parts (by weight) of functional additives (additional, similarly hereinafter) into the mixing pot, and carrying out uniform mixing, so as to prepare a stock solution; and (3) adding the stock solutionin the mixing pot in the step (2) into the product pot in the step (1), and carrying out uniform stirring. The functional additives contain part or all of the following ingredients: a water repellent, an antioxidant, an ultraviolet radiation absorber, a sterilizing mildew preventive, an anti-emulsifier and a sterilizing preservative. The industrial water saving agent has a good barrier effect onwater vapor and is low in consumption and remarkable in water saving effect; in addition, the use is simple and convenient, and system facilities are not required to be increased and replaced.

The invention relates to a preparation method of an automotive damping material and mainly relates to a high-performance damping slurry filled withe functionalized graphene and a preparation method of the high-performance damping slurry. The preparation method comprises the steps of sieving bentone, fumed silica, nano calcium carbonate, functionalized graphene, nano-silver powder by use of a sieve of 100-200 meshes, blending a core-shell emulsion, a defoamer, a plasticizer and a cross-linking agent, stirring evenly, adding the sieved powder to the blended emulsion, mixing by virtue of mechanical stirring at a normal temperature and a stirring speed within the range of 100-200r / min, and adding deionized water for regulating the thickness to the range of 8-10. The functionalized graphene has excellent solubility with a polymer matrix; due to frictional loss between the functionalized graphene and the polymer matrix due to interfacial slippage, the energy can be effectively dissipated, and the noise pollution in a vehicle can be effectively reduced; meanwhile, the silver nanomaterial is taken as an antimycotic assistant, and has an excellent antimycotic effect.

The invention discloses a preparation method of microfiber leather. The production line of the preparation method comprises the following steps: production of a high-density spunlaced nonwoven fabricfrom sea island short fibers, ironing shrinkage, wet impregnation in PU resin, toluene reduction extraction, drying tentering, oiling softening, puffing , dry PU lamination, and functional treatment for producing the microfiber leather. The preparation method has the advantages of simple treatment process and environmentally-friendly production process, the microfiber leather contains no chromiumor other harmful substances, the raw material is a petroleum product, is environmentally friendly and nontoxic, and can be recycled, and the microfiber leather produced by the preparation method has the advantages of uniform thickness, excellent moisture absorption property, excellent air permeability, excellent mold resistance, excellent alkali resistance, excellent aging resistance and excellentwater repellency.

The invention discloses a method for preparing cross-linked anti-fatigue and anti-wear polyurethane rubber. The cross-linked anti-fatigue and anti-wear polyurethane rubber comprises the following components in percentage by mass: 65-70% of polytetramethylene glycol, 6-10% of cyclic polypropylene oxide ether triatomic alcohol, 14-20% of toluene diisocyanate, 5-8% of 1,5-naphthalene diisocyanate, 1-3% of di-o-chlorodiphenylamine methane, 0.5-1.5% of trimethylolpropane, 0-0.5% of carbon black and 1-2% of molybdenum disulfide. The rubber has the advantages of high wear resistance, good resilience, good low-temperature resistance, high tensile strength, predominant hydrolysis resistance, good adhesion to metal, shock resistance and relatively good anti-fatigue performance.

The invention relates to the technical field of energy-storage luminescent paint, in particular to inorganic water-based energy-storage luminescent paint for tunnels. The inorganic water-based energy-storage luminescent paint is prepared from components in parts by weight as follows: 40-100 parts of water, 50-100 parts of alkaline silica sol with concentration being 20%, 100-200 parts of a silicate solution with concentration being 40%, 10-50 parts of an anti-settling aid, 30-150 parts of an energy-storage luminescent composite material and 10-25 parts of a dispersing agent. Meanwhile, the invention provides a preparation method of the inorganic water-based energy-storage luminescent paint for the tunnels. The inorganic water-based energy-storage luminescent paint for tunnels and the method have the beneficial effects as follows: the prepared inorganic water-based energy-storage luminescent paint is non-toxic, non-radioactive and free of VOC consumption and belongs to an environment-friendly product; the paint contains no volatile organic compounds or products, thereby being environmentally friendly; the preparation method is simple, heating and pressurizing are not required, therefore, the cost is lower, and the practical value is quite high.

The invention provides a high-performance engine cable assembly, which solves the technical problems of low reliability and short service life of the existing engine cable. The engine cable assembly comprises a main cable, the main cable is divided into a plurality of branch cables through a plurality of bifurcation assemblies, two ends of the main cable and an end of the branch cable are respectively installed with tail accessories; The main cable comprises a main wire harness, and the branch cable comprises a branch wire harness. A polytetrafluoroethylene film is wound on the outer peripheryof the main wire harness and the branch wire harness. A wave-proof sleeve is arranged on the outer periphery of the polytetrafluoroethylene film, and the wave-proof sleeve of the main wire harness iscrimped on the outer periphery of the wave-proof sleeve of the branch wire harness at the bifurcation. The invention has the advantages of high reliability and long service life, and can be used forthe electric connection between the relevant accessories with electric products on the engine and the digital electronic controller and the engine comprehensive diagnostic device, and can transmit thecorresponding electric signals to realize the control function of the engine.

The invention discloses an outdoor heavy bamboo and wood floorboard and a preparation method thereof. The outdoor heavy bamboo and wood floorboard comprises a heavy bamboo and wood floorboard substrate, wherein a sealed bottom layer, an attached primer layer, a first finish paint layer and a second finish paint layer are sequentially coated on the heavy bamboo and wood floorboard substrate from inside to outside; each of the first finish paint layer and the second finish paint layer is UV finish paint; the attached primer layer is UV attached primer; the sealed bottom layer is waterborne UV sealed bottom. The preparation method of the floorboard comprises the following steps that the waterborne UV sealed bottom is coated on each surface of the heavy bamboo and wood floorboard substrate; infrared levelling is implemented; primary UV curing is performed; the UV attached primer is coated on the upper surface of a board material; secondary UV curing is performed; the UV finish paint is coated on the upper surface of the board material once, and UV curing is performed; the UV finish paint is coated again, and the UV curing is performed; the outdoor heavy bamboo and wood floorboard is obtained. The outdoor heavy bamboo and wood floorboard has the advantages that the antifungal rate is high; the wearing resistant performance is good; the weather resistance is good; the production efficiency is high; the environmental protection performance is good.

The invention relates to a synthetic material combination technology, in particular to a synthetic industrial acidic wastewater vapor blocking agent and a preparation method thereof. The blocking agent is prepared from, by weight, 100 parts of long-chain alkyl naphthalene of which the carbon number is greater than or equal to eight and 4-10 parts of functional additives. The blocking agent is low in specific gravity, thereby being capable of floating on the acidic wastewater and blocking the water vapor; the blocking agent is high in flash point, thereby being small in saturated vapor pressure, low in volatility and small in evaporation loss. Meanwhile, the blocking agent is excellent in emulsion resistance and hydro-dissection capacity, prominent in oxidation stability and thermal stability, low in product aging speed and also excellent in mould prevention and has wide adaptability to the pH value of acidic water; besides, the blocking agent is low in toxicity, safe in operation and small in environmental influence. In addition, the blocking agent is easy and convenient to use and can be directly poured, there is no need to stop work or production, the subsequent working procedures and product quality will not be affected, and the blocking agent is also convenient to recover; moreover, the blocking agent can be generally used in the four seasons.

The invention discloses a wear resistant cable for a charging pile and a manufacture method therefor. The wear resistant cable for the charging pile includes a cable inner core and a cable outer layer covering the cable inner core. The cable inner core comprises a power supply cable, a protective grounding cable, a middle line cable, a pair of control / charging connection confirmation cables and a pair of standby expansion cables. Double shielding layers cover the pair of control / charging connection confirmation cables. The cable outer layer is composed of a wrapping belt, a TPE inner sheath, and a TPU outer sheath in turn from inside to outside. The cross section of the TPE inner sheath is round, and the cross section of the TPU outer sheath is concavo-convex. The wear resistant cable for the charging pile has the advantages of compact structure, good stability, no halogen and low smoke, non-toxicity, corrosion resistance, stretch resistance, bending resistance and friction resistance. The sheath layer employs TPE and TPU sheaths and has wide hardness scope, excellent stainability, soft touch, and good weatherability, fatigue resistance, temperature toleration and mechanical property.

The invention relates to a feedstuff additive prepared from bacillus antibacterial peptides and bacillus probiotics and a using method thereof in feedstuff, and belongs to the field of feedstuff additives. The compound feedstuff additive is prepared from bacillus antibacterial peptides and bacillus probiotics, wherein the content of bacillus antibacterial peptides in per gram of compound feedstuff additive is 2-20 mg, and the content of bacillus probiotics in per gram of compound feedstuff additive is 1.0-5.0*109 cfu. The feedstuff additive can be used as an antibiotic substituted product, antibiotic residues are removed, the quality of meat, eggs and milk is improved, and the feedstuff additive can be used for preventing and treating kinds of animal diarrhea, improving production performance of animals, immunity and disease resistance and increasing the feedstuff conversion rate. The additive is a green feedstuff additive and is beneficial to improving the quality of livestock and poultry products and health of humans.

The invention discloses an antibacterial flame-retardant ultraviolet-curable coating. The antibacterial flame-retardant ultraviolet-curable coating is prepared from the following raw materials in parts by weight: 33-36 parts of urethane acrylate, 19-22 parts of polyester acrylate, 12-14 parts of polyethylene glycol acrylate, 6-8 parts of glycidyl acrylate, 1-2 parts of turpentine, 4-5 parts of 2-methyl-2-hydroxy-1-phenylacetone, 5-8 parts of trimethylolpropane triacrylate, 4-7 parts of tripropylene glycol acrylate, 3-5 parts of butanone, 1-2 parts of polyacrylate, 4-6 parts of zinc oxide, 2-3 parts of talcum powder, 1-2 parts of IPBC (Iodo Propynyl Butyl Carbamate) and 4-5 parts of auxiliaries. Due to the added IPBC, the antibacterial flame-retardant ultraviolet-curable coating is safe and non-toxic, and has excellent antifungal and antioxidation effects; due to the added zinc oxide, the antibacterial flame-retardant ultraviolet-curable coating has closed effect in addition to flame retardant and antibacterial effects; furthermore, due to the added auxiliaries, the antibacterial flame-retardant ultraviolet-curable coating is good in leveling property, and an even coating coating can be formed, and the coating layer is high in curing speed, hard, wearproof, flexible and high in adhesion.

The invention relates to a high-toughness epoxy resin grouting material for rapid repair of a concrete structure joint. The high-toughness epoxy resin grouting material is composed of the following raw materials: a component A and a component B, wherein the component A comprises: glycidyl ether epoxy resin, glycidyl ether epoxy resin, softened modified epoxy resin, epoxy-terminated liquid nitrilebutadiene rubber and a reactive diluent; and the component B comprises: a modified amine curing agent, polymercaptan, a tertiary amine accelerator, amino-terminated liquid nitrile butadiene rubber, anorganic silicon defoamer and an anti-aging agent, and the mass ratio of the component A to the component B is 1:0.2-1. The epoxy resin grouting material has low viscosity, is convenient for groutingconstruction, has good applicability to a humid basal plane, and has fast hardening speed, high early mechanical strength and bonding strength, excellent flexibility, and excellent damp-heat aging resistance and fatigue resistance, and can achieve rapid repair and reinforcement on a concrete structure joint without affecting normal traffic.

The invention discloses a mould-proof aerated building block and a making method thereof. The mould-proof aerated building block is made from, by weight, 17-29 parts of silicon micro-powder, 22-36 parts of fluorite slag, 9-16 parts of crab shell powder, 12-18 parts of sulfur slag, 5-10 parts of nanometer silver supported zirconium phosphate, 4-7 parts of polyacrylamide, 5-10 parts of traditional Chinese medicinal residue ash, 13-21 parts of slag micro-powder, 14-22 parts of porous ceramsite, 15-25 parts of white cement, 11-17 parts of calcined loess, 10-15 parts of quicklime, 1-2 parts of hydrogen peroxide and a proper amount of water. The crab shell powder, the sulfur slag, the nanometer silver supported zirconium phosphate, polyacrylamide, the traditional Chinese medicinal residue ash and other raw materials added in the invention can obviously improve the mould proofing performance of the aerated building block and have no influences on the physical-mechanical performances of the aerated building block. The aerated building block made in the invention has excellent mould proofing performance, has a bacteriostasis rate reaching 99.5% or above, and also has excellent impact, thermal ageing and corrosion resistance.

The invention discloses an assembly painting method for improving coating adhesion force. The method comprises the following steps: 1) roughing the surfaces of parts, controlling the roughness of the surfaces to be 1.6 to 6.3 microns, then washing through a solvent, and drying; 2) spraying epoxy primer, and controlling the thickness of a dried film to be 70 to 100 microns; 3) spraying fluorocarbon finish, and controlling the thickness of the dried film to be 30 to 50 microns; 4) assembling the parts to be an assembly, grinding and levelling a painted part of the assembly, removing dirt, spraying fluorocarbon finish, and controlling the thickness of the dried film to be 30 to 50 microns, so as to obtain the product. According to the method, the parts are painted, and then the assembly is sprayed with the paint, and the process parameters of each stage are controlled, so that the environmental suitability of the parts can be improved; besides the high adhesion force, a coating of the assembly is outstanding in salt mist resistance, moist heat resistance, mould resistance, high temperature resistance and low temperature resistance; the coating is uniform and consistent in appearance and high in decoration performance.

The invention relates to the technical field of coatings, and in particular discloses a crylic acid modified polyurethane dispersion wall coating and a preparation method thereof. The wall coating comprises the following components in percentage by weight: 7-25% of deionized water, 1-2% of a base material moistening agent, 0.1-0.3% of rheologic aids, 14-25% of titanium dioxide, 50-75% of a crylic acid modification polyurethane dispersion, 1-6% of filming aids, 0.1-0.4% of an organic silicon surfactant, 0.2-0.5% of a defoaming agent and 0.35-0.7% of a polyurethane thickening agent. The wall coating has dual advantages of crylic acid and polyurethane, can be directly diluted with water, is appropriate in price, is dense in coating film after being filmed in a cross-linking manner, has very good impedance to stain, and is very good in mold resistance, bacterial resistance and stain resistance and high in film hardness.

A modified TPU abrasive sealing material, its production and use are disclosed. The process is carried out by adding TPU granular into ABS granular material, co-mixing, granulating, drying, molding and choosing. It consists of TPU granular material 100 proportion, ABS granular material 20-35 proportion and ultra-fine powder 0-15 proportion.

A radiant cross-linking fire-retardant and heat-shrinkage indicating double pipe and its production are disclosed. The process is carried out by taking ethane-vinyl acetate multi-polymer, ethane-ethyl acrylate multi-polymer, ethylene-propylene rubber, fire-retardant decabromodiphenyl ethane, antimonous oxide, surface-activated superfine-magnesium hydrate and auxiliary as raw material, mill granulating, extrude forming, radiant cross-linking, expand sizing, and finish treating. It has better weather-resisting, high and low-temperature-resisting, anti-corrosive and antibacterial performances and long-period storage. It can be used for military industry, aviation and aerospace, civil high-terminal electronic equipment and cable.

The invention relates to the technical field of oil field equipment and particularly discloses a wear-proofing protection sleeve for an oil drilling rod. The wear-proofing protection sleeve comprisesa wear-proofing sleeve body and clamps. The oil drilling rod is sleeved with the wear-proofing sleeve body; the clamps are used for fixing the wear-proofing sleeve body; a horn mouth is formed in oneend of the wear-proofing sleeve body, and a circle of rotating edge is inwards arranged at the edge of the horn mouth; the wear-proofing sleeve body is constituted by a plastic body, and the plastic body is made of a polyurethane rubber material; flow channels in groove shapes are evenly formed axially in the outer circular wall face of the wear-proofing sleeve body; a metal reinforcing layer matched with the cylindrical shape of a sleeve main body is arranged in the wear-proofing sleeve body, the two ends of the reinforcing layer are connected with metal skeletons, and the outer ends of the skeletons are flush with the ends of the sleeve main body; and horn mouths opening gradually from inside to outside are formed in the two ends of the flow channels. The wear-proofing protection sleevehas the advantages that the problem that the oil drilling rod and the inner wall of a casing make contact directly, and thus the casing is worn through is solved, and the drilling efficiency is improved.