466 results about "Chlorinated polyethylene" patented technology

The invention provides an acetylacetone-based composite thermal stabilizer which is a mixture obtained by mixing zinc acetylacetonate, calcium acetylacetonate or magnesium acetylacetonate and hydrotalcite pro rata. The composite thermal stabilizer is suitable for chloride-containing high polymer, such as polyvinyl chloride, chlorinated polyethylene, chlorinated polyvinyl chloride, copolymer of vinyl chloride-ethylene or copolymer of vinyl chloride-vinyl acetate, has better thermal stability, prolongs the thermal aging time of the chloride-containing high polymer, and overcomes the shortcomings of poor long-term performance of single stabilizer of zinc acetylacetonate, poor transparency of stabilizer of calcium acetylacetonate, and poor initial colorability of stabilizer of hydrotalcite. The composite thermal stabilizer has low cost, good initial colorability, excellent long-term performance and good transparency, and is an efficient composite thermal stabilizer.

The invention discloses a highly antibacterial PVC plate and a preparation method thereof, and belongs to the technical field of PVC plates. Comprising the following raw materials in parts by weight: 70-80 parts of SG5 type PVC resin, 16-22 parts of calcium carbonate, 15-25 parts of chlorinated polyethylene, 18-28 parts of acrylic resin, 7-21 parts of a multi-effect antibacterial agent and 4-6 parts of a lubricant. Wherein calcium carbonate can improve the processing performance of PVC and enhance the mechanical property of the board; the chlorinated polyethylene can enhance the aging resistance and flexibility of the plate; wherein the acrylic resin can enhance the processability, aging resistance and flexibility of the PVC; the multi-effect antibacterial agent can enhance the antibacterial property, heat resistance and flexibility of the plate, belongs to macromolecules and is stable in performance; therefore, the prepared PVC plate has excellent processability, aging resistance and mechanical property, has stable and efficient antibacterial property, heat resistance and flexibility, and has important application value in the technical field of PVC plates.

The invention relates to the technical field of cables, and provides a tensile new energy charging pile cable which comprises a conductor, an insulating layer, a shielding layer and a sheath layer which are sequentially arranged from inside to outside. The sheath layer comprises the following components in parts by weight: 60-70 parts of chlorinated polyethylene, 15-20 parts of polyisoprene, 5-10 parts of an ethylene-methyl methacrylate copolymer, 8-18 parts of an acrylonitrile-butadiene-styrene copolymer, 20-30 parts of modified hydroxyapatite, 1-5 parts of a lubricant, 3-6 parts of a plasticizer, 30-40 parts of a flame retardant and 1-3 parts of an antioxidant; the raw materials of the modified hydroxyapatite comprise hydroxyapatite and a modifier; the modifier comprises maleic acid-acrylic acid copolymer sodium salt; the weight ratio of the hydroxyapatite to the modifier is 45: (1-7). According to the technical scheme, the problem that the cable sheath layer of the new energy charging pile is poor in tensile property and corrosion resistance in the prior art is solved.

The invention discloses a sheath material for a saline-alkaline-resistant dragging cable, a preparation method of the sheath material, the cable and the sheath material. The sheath material is prepared from the following raw materials in parts by weight: 40 to 45 parts of chlorinated polyethylene, 1.5 to 2.0 parts of dicumyl peroxide vulcanizing agent, 2 to 2.5 parts of triisocyanate vulcanizing agent, 0.1 to 0.3 part of ethylene thiourea accelerant, 0.05 to 0.15 part of anti-aging agent RD, 4 to 5 parts of metal oxide, 1 to 1.5 parts of paraffin, 8 to 10 parts of calcium carbonate, 15 to 21 parts of reinforcing agent, 1 to 1.5 parts of lead stearate, 0.5 to 1 part of lead sulfate tribasic, 1 to 1.5 parts of ultraviolet light absorber, 3 to 5 parts of epoxidized soybean oil and 8 to 8 parts of chlorinated paraffin. 9 parts of antimony trioxide and 3-4 parts of antimony trioxide. The cable has the advantages of ultraviolet resistance, no salt deposition, water resistance, tensile resistance, cold resistance and the like, can be used for a long time in a special operating environment, has the service life of at least more than 3 years, and avoids frequent replacement of the cable by a user.

The invention provides an outdoor hard polyvinyl chloride material and a preparation method and a product thereof. The outdoor hard polyvinyl chloride material is prepared from the following raw materials in parts by weight: 80 to 100 parts of polyvinyl chloride resin, 15 to 50 parts of chlorinated polyvinyl chloride resin, 50 to 100 parts of acrylonitrile-styrene-acrylate terpolymer, 3 to 15 parts of impact modifier, 0.1 to 5.0 parts of processing aid, 0.1 to 5.0 parts of lubricant and 0 to 10 parts of other aids. The impact modifier comprises a methyl methacrylate-butadiene-styrene terpolymer and chlorinated polyethylene, and the processing aid comprises ACR acrylic resin. The lubricant includes a first lubricant and a second lubricant. The melting point of the first lubricant is 20-70 DEG C, and the melting point of the second lubricant is 100-115 DEG C. The outdoor rigid polyvinyl chloride material has the advantages of excellent compatibility of the components, high impact strength, high weather resistance and low specific gravity, and meets the use requirements of base station antenna housing materials.

The invention belongs to the technical field of high polymer materials, and relates to a 5VA high-flame-retardancy ABS (Acrylonitrile Butadiene Styrene) resin composition and a preparation method thereof, and the resin comprises the following components in parts by weight: 65-75 parts of ABS resin; 3-8 parts of chlorinated polyethylene; 15-20 parts of an aromatic brominated flame retardant; 3-6 parts of an antimony flame retardant synergist; 3 to 6 parts of nano charring master batch and 0.1 to 0.5 part of anti-dripping agent; 0.2 to 0.5 part of an antioxidant; 0.5 to 1.0 part of light stabilizer; 0.5 to 1.0 part of lubricant; the preparation method comprises the following steps: stirring and fully mixing the raw materials in a high-speed mixer, conveying, shearing and mixing by a double-screw extruder on a screw, melting, compounding, homogenizing, drawing, cooling and pelletizing to obtain the 5VA high-flame-retardant ABS resin composition. Compared with the prior art, the invention solves the problems of poor flame retardance and low impact property of flame-retardant ABS resin thin-wall 5VA, is suitable for meeting the requirement of high flame retardance of 5VA, and is also suitable for application occasions of flame-retardant S.2 needle flame combustion standards.

The invention relates to the technical field of cable preparation, in particular to a low-temperature-resistant flame-retardant anti-ultraviolet PVC cable sheath composition, a preparation method thereof and a cable. According to the composition, polyvinyl chloride is used as a matrix, chlorinated polyethylene elastomer, an environment-friendly plasticizer and a calcium-zinc stabilizer are used as auxiliary materials, nanoscale magnesium hydroxide, zinc stannate, passivated zinc borate, sodium tungstate and modified montmorillonite are introduced to form a multi-component synergistic flame-retardant system, and the flame retardance, the low smoke property and the thermal stability of the material are remarkably improved. Meanwhile, through the cooperation of the ultraviolet light absorber and the antioxidant, the weather resistance of the material is enhanced, and the service life of the material is prolonged. The prepared cable sheath material has excellent low-temperature flexibility, flame retardance and smoke suppression performance and ultraviolet aging resistance, and is suitable for high-performance cables in severe environments.

The present invention relates to an insulating rubber sheath cable repair strip and a preparation method and application thereof. The insulating rubber sheath cable repair strip comprises a reinforcing tensile element and a re-vulcanizable rubber strip, wherein the reinforcing tensile element is arranged at the center of the re-vulcanizable rubber strip; the re-vulcanizable rubber strip comprises: 86-90 parts of chlorinated polyethylene, 10-14 parts of ethylene propylene rubber, 10-14 parts of magnesium oxide, 7-9 parts of flame retardant, 0.7-0.9 parts of antioxidant, 10-14 parts of carbon black, 13-17 parts of white carbon black, 18-22 parts of clay, 10-14 parts of talc, 13-17 parts of plasticizer, 10-14 parts of diisooctyl adipate, 0.7-0.9 parts of paraffin wax, 0.9-1.1 parts of polyethylene wax, 2.3-2.7 parts of vulcanizing agent, and 1.8-2.2 parts of vulcanizing agent. The present invention solves the problems of facilitating the repair of cable sheaths and facilitating production, more effectively saving costs and reducing safety.

A rubber composition having a nitrile and ethylene terpolymer, in particular a polymer blend of an acrylonitrile-butadiene copolymer (NBR) and an ethylene polymer. The composition has an NBR in an amount of from 30 to 50% by weight of the total composition. In some embodiments, the ethylene polymer is an EPDM rubber, an ethylene acrylic elastomer, or a chlorinated polyethylene. The composition may include an organic peroxide or other accelerator. The rubber composition can be used for synchronous belts having medium temperature to high temperature resistance, good fuel resistance, flexibility as low as-40 DEG C, and high structural integrity. In addition, the rubber composition allows the amount of a reinforcing material such as carbon black to be reduced.

The invention discloses a catalyst, a preparation method and application of the catalyst in preparation of polyethylene and chlorinated polyethylene. The catalyst carrier is synthesized under a low-temperature mild condition, the catalyst has high polymerization activity, strong hydrogen regulation sensitivity and good copolymerization performance, and the ethylene polymer with narrow particle size distribution of polymerization powder, high bulk density and excellent fluidity is obtained.

The invention relates to a pegylated cellulose nanocrystal and a preparation method and application thereof, in particular to the technical field of nanomaterials, the preparation method comprises the following steps: modifying polyethylene glycol into chlorinated polyethylene glycol; carrying out alkaline treatment on the cellulose nanocrystal to enhance the activity of the cellulose nanocrystal; then mixing and reacting the polyethylene glycol cellulose nanocrystal and the polyethylene glycol cellulose nanocrystal to obtain a polyethylene glycol cellulose nanocrystal; according to the invention, polyethylene glycol is grafted on the surface of the cellulose nanocrystal through chemical reaction, so that the action mechanism of the cellulose nanocrystal is changed and enhanced, on one hand, the grafting of polyethylene glycol not only exerts the steric hindrance effect, but also enhances the characteristics (crystallinity, thermal stability and dispersity) of the cellulose nanocrystal; on the other hand, due to the existence of polyethylene glycol, the short-circuit diffusion effect and the nucleation effect can be enhanced, so that the cement hydration degree is improved; and polyethylene glycol has an internal curing effect, so that the self-constriction of the cement-based material can be reduced.

The invention discloses a flame-retardant flat flexible high-current cable and a preparation method thereof, and relates to the technical field of cables. The cable comprises a flat conductor, an insulating layer, a shielding layer, a reinforcing layer and a sheath layer, the insulating layer contains 85-90 parts of low-density polyethylene, 1.2-1.5 parts of dicumyl peroxide, 12-15 parts of modified aluminum hydroxide and the like; and the sheath layer contains 42-50 parts of modified chlorinated polyethylene, 28-34 parts of modified aluminum hydroxide and the like. The modified chlorinated polyethylene is prepared through a three-step extrusion reaction, and the modified aluminum hydroxide is subjected to coupling agent treatment, coating modification and carbon nanotube composite modification. The flame-retardant flat flexible large-current cable has prominent advantages, an efficient flame-retardant system is constructed by modified aluminum hydroxide and antimony trioxide, and the V-0 level requirement of UL94 can be met; the flat structure is combined with the modified chlorinated polyethylene, so that the flexibility is excellent and the temperature-resistant range is wide. The design of the insulating layer and the shielding layer ensures excellent electrical performance, segmented temperature control and accurate parameter regulation and control are performed in preparation, stable product quality is ensured, and the device can adapt to a large-current application scene.

The utility model relates to the technical field of PVC (polyvinyl chloride) pipes, and discloses a flame-retardant PVC pipe which comprises a PVC main pipe, a filling layer and a protective outer pipe which are sequentially arranged from inside to outside, flame-retardant coatings are coated on the inner wall and the outer wall of the PVC main pipe, a metal net is embedded on the outer pipe wall of the protective outer pipe, and the protective outer pipe is a CPE (chlorinated polyethylene) modified PVC pipe. The problems that in the prior art, when an existing PVC pipe encounters part of extreme use environments, a coating on the surface of the PVC pipe is scraped and leaks out of a bottom pipe, and the service life of the bottom pipe is shortened are solved.

The invention discloses an anti-aging and low-temperature-resistant PVC (polyvinyl chloride) foaming material with flexibility and strength and a preparation method of the anti-aging and low-temperature-resistant PVC foaming material. Comprising the following components: 60-80 parts of polyvinyl chloride resin, 10-20 parts of chlorinated polyethylene (CPE), 5-15 parts of ethylene-vinyl acetate copolymer (EVA), 20-35 parts of a composite plasticizer, 5-12 parts of nano calcium carbonate, 3-8 parts of modified montmorillonite, 6-12 parts of a composite stabilizer, 3-7 parts of a foaming agent, 1-3 parts of a cross-linking agent, 1-3 parts of an antioxidant, 0.5-2 parts of an ultraviolet light absorber, 5-10 parts of a cold-resistant plasticizer and 1-3 parts of a lubricant. According to the invention, the raw material components and the ratio are reasonably selected, so that the prepared PVC foaming material has good flexibility and strength. The addition of chlorinated polyethylene and ethylene-vinyl acetate copolymer can improve the flexibility of the material, the addition of nano calcium carbonate and modified montmorillonite enhances the strength of the material, and the use of the composite plasticizer also plays a positive role in the balance of flexibility and strength.

The invention relates to the technical field of rubber hoses, in particular to a pressure-resistant and oil-resistant rubber hose and a preparation method thereof.The preparation method comprises the following steps that S1, nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, sulfur, an accelerant and an anti-aging agent are added into an internal mixer to be evenly mixed, the temperature is controlled for mixing, sheet discharging is conducted, a pipe blank is extruded through an extruder, and the pipe blank is obtained; a combined rubber layer is obtained; s2, the combined rubber layer, the woven copper-plated steel wire layer, the reinforcing layer, the spiral zinc-plated spring steel wire layer, the reinforcing layer, the woven copper-plated steel wire layer and the combined rubber layer are subjected to interlayer bonding in sequence, and the assembled hose is obtained; and S3, the assembled hose is put into a vulcanizing tank to be subjected to vulcanizing treatment. By adopting the seven-layer composite structure design, the rubber hose disclosed by the invention can be in contact with a strong corrosive medium for a long time without internal corrosion, so that the service life of the hose is prolonged, and the safety of the hose in the use process is also improved.

The present invention relates to the technical field of cable preparation, and in particular to a low-temperature-resistant, flame-retardant, and UV-resistant PVC cable sheath composition, a preparation method thereof, and a cable. The composition is based on polyvinyl chloride, supplemented with a chlorinated polyethylene elastomer, an environmentally friendly plasticizer, and a calcium-zinc stabilizer, and introduces nano-magnesium hydroxide, zinc stannate, passivated zinc borate, sodium tungstate, and modified montmorillonite to form a multi-component synergistic flame retardant system, which significantly improves the flame retardancy, low smoke properties, and thermal stability of the material. At the same time, through the synergy of ultraviolet absorbers and antioxidants, the weather resistance and service life of the material are enhanced. The prepared cable sheath material has excellent low-temperature flexibility, flame retardant and smoke suppression properties, and ultraviolet aging resistance, and is suitable for high-performance cable applications in harsh environments.

The invention discloses a modified CM square electric power corrugated pipe, belongs to the technical field of electric power pipe processing, and aims to solve the technical problem that the burnthrough resistance and the mechanical strength of a square electric power corrugated pipe in the prior art need to be further improved. The corrugated pipe comprises a square pipe and a plurality of corrugated rings arranged outside the square pipe, the square pipe and the corrugated rings are made of a modified CM material, siloxane-enhanced modified chlorinated polyethylene rubber and chlorinated polyvinyl chloride are combined to form a mixed matrix, and the mixed matrix is enhanced by using a composite filler composed of modified inorganic powder and modified glass beads. The tensile property and the impact resistance of the modified CM square electric power corrugated pipe are effectively enhanced, the burn-through resistance and the low temperature resistance of the material are improved, and the modified CM square electric power corrugated pipe is more convenient and more advantageous in practical application by optimizing the structure of the electric power corrugated pipe.

The invention belongs to the technical field of chlorinated polyethylene production, and particularly discloses a method and device for producing chlorinated polyethylene through a microbubble reaction. The method comprises the following steps: S1, preparing a microcapsule form additive; s2, adhering and permeating the microcapsule form additive and the polyethylene particles; s3, chlorine gas forms chlorine gas micro-bubbles after passing through a micro-bubble generator, the chlorine gas micro-bubbles enter the bottom of the reaction kettle and are in full contact with the polyethylene particles and the reaction auxiliaries, and the surfaces and the interiors of the polyethylene particles react at the same time; s4, after the chlorination reaction is finished, washing, centrifuging and drying to obtain a chlorinated polyethylene product. By adopting a microbubble reaction production process, the diameter of chlorine gas bubbles is reduced, the mass transfer area of chlorination reaction is increased, chlorine gas is easier to enter polyethylene particles for reaction, the chlorination reaction rate and the chlorination uniformity are improved, the production period is shortened, the product quality is further improved, the reaction pressure is reduced, and the production cost is reduced. And the safety of the equipment is improved.

The invention relates to the field of polyethylene composite materials, and discloses an impact-resistant high-density polyethylene composite material and a preparation method thereof.The impact-resistant high-density polyethylene composite material is prepared from, by weight, 60-70 parts of matrix resin, 5-11 parts of flexibilizer, 4-9 parts of inorganic filler, 1-3 parts of compatilizer, 0.5-1.5 parts of antioxidant and 2-4 parts of ultraviolet stabilizer, the matrix resin is high-density polyethylene with the molecular weight of 90,000-120,000, and the flexibilizer is a compatilizer. The flexibilizer is chlorinated polyethylene, the chlorine content is 25 + / -1 wt%, the inorganic filler is modified talcum powder, the D50 particle size is smaller than or equal to 3 microns, and the length-diameter ratio is larger than or equal to 10. The surface of the talcum powder is modified by gamma-aminopropyltriethoxysilane, and the length-diameter ratio of the particle size is controlled, so that the chemical bonding effect of the filler and a high-density polyethylene matrix is enhanced, the high-efficiency transmission and uniform dispersion of stress are facilitated, and the local stress concentration phenomenon under the impact load is effectively inhibited.

The invention relates to a protective sleeve for a flame-retardant cable, a preparation method of the protective sleeve and the flame-retardant cable. The protective sleeve for the flame-retardant cable comprises the following components in parts by weight: 40-60 parts of chlorinated polyethylene, 1-10 parts of a polyolefin elastomer, 1-10 parts of modified magnesium hydroxide, 1-10 parts of an antimony-containing flame retardant and 1-8 parts of modified magnesium-aluminum hydrotalcite. The flame-retardant cable comprises a conductor, an insulating layer and the protective sleeve, wherein the insulating layer comprises the following components in parts by weight: 40-60 parts of ethylene propylene diene monomer and 30-60 parts of modified magnesium hydroxide. The formula of the protective sleeve for the flame-retardant cable is reasonably designed, so that the prepared protective sleeve has excellent flame retardance, torsion resistance and aging resistance. The flame-retardant cable is further matched with a protective sleeve and an insulating layer containing modified magnesium hydroxide, and the flame-retardant cable which is suitable for wind power generation and passes an A-type bunching combustion test is prepared.

The invention provides a high-strength corrosion-resistant CPVC plate and a preparation method thereof, and belongs to the technical field of high polymer materials, the preparation method comprises the following steps: S1, preparing Si-MBS; s2, mixing CPVC resin powder, Si-MBS, chlorinated polyethylene, a stabilizer, a processing aid, a lubricant and a coupling agent-hollow microsphere, melting, plasticizing, extruding, calendaring to form a plate, and cooling and shaping to obtain a CPVC base material; and S3, spraying the coating slurry containing ZIF-67 / GO-coated BTA / PEI powder on the surface of the CPVC base material, vacuumizing, and curing to obtain the high-strength corrosion-resistant CPVC plate. The overall strength and impact resistance can be improved, and meanwhile the overall corrosion resistance is improved.

The invention discloses a rubber compound for manufacturing a medical sealing element and a preparation method of the rubber compound, and relates to the technical field of rubber. The rubber compound for manufacturing the medical sealing element is prepared by mixing the rubber composition, the composite modifier and the like; the rubber composition comprises chlorinated polyethylene rubber, isoprene rubber and modified liquid fluororubber, and the modified liquid fluororubber is prepared by reacting carboxyl-terminated liquid fluororubber with an isocyanate-terminated epoxy prepolymer. The isocyanate-terminated epoxy prepolymer is prepared by reacting resorcinol diglycidyl ether, N-methylethanolamine and an isocyanate polymer, and the isocyanate polymer is prepared by polymerizing hexamethylene diisocyanate, so that the chemical corrosion resistance and high temperature resistance of the rubber are enhanced; and the composite modifier is prepared by reacting multi-element copolyether ester with fluorinated polybutadiene, so that the final rubber compound has excellent low-temperature brittleness resistance and long-term stability while keeping high strength.

The invention discloses a corrosion-resistant cable material, an energy storage cable and a preparation method of the corrosion-resistant cable material, and belongs to the technical field of cables. The corrosion-resistant cable material comprises the following raw materials: a hexadecylamine functionalized graphene bentonite copolymer, modified epoxy resin E5, chlorinated polyethylene, a plasticizer, paraffin, mica powder and an antioxidant. The hexadecylamine functionalized graphene bentonite copolymer is obtained by adding acidified bentonite into a graphene dispersion liquid, stirring and then carrying out hydrophobic modification through hexadecylamine; the modified epoxy resin E51 and 5-aminosalicylic acid are subjected to a hydrothermal reaction to obtain nitrogen-doped quantum dots, the nitrogen-doped quantum dots are ultrasonically mixed with ethyl alcohol, then the waterborne curing agent is added, then the epoxy resin E51 is added, and high-speed stirring is performed to obtain the cable material, the cable material has good waterproofness, corrosion resistance and mechanical performance, and stable operation of an energy storage cable can be guaranteed.

A multilayer permeation resistant article, such as a fuel transfer hose, includes an elastomeric layer and a polyketone (PK) barrier layer. The elastomeric layer may be directly bonded to the PK barrier layer without an intervening adhesive layer. To facilitate such direct bonding, the elastomeric layer may be formed from a composition including one or more ethylene vinyl acetate elastomer(s). The elastomeric composition may include additional elastomer(s), such as chlorinated polyethylene (CPE), acrylonitrile butadiene rubber (NBR), hydrogenated nitrile rubber (HNBR), or chlorosulfonated polyethylene (CSM). The barrier layer may exhibit a permeation rate of less than 10 g / m2 / day. The bonding performance of the elastomeric layer to the PK barrier layer may be characterized by an average load per width of 10 lbf / in or greater.

The invention relates to the technical field of elastic materials and refrigerator door sealing strips, in particular to a plant-based thermoplastic elastomer material and a preparation method and application thereof. The plant-based thermoplastic elastomer material contains a chlorinated polyethylene material, a polyethylene material, polyvinyl chloride, a plasticizer, a stabilizer, a lubricant, an antibacterial and mildew-proof agent, plant powder and a coupling and dispersing compatilizer. Wherein the plasticizer is a plant-based plasticizer; the particle size of the plant powder is 12-20 [mu] m. According to the plant-based thermoplastic elastomer material, the elastomer chlorinated polyethylene (CPE) is adopted as a main material, application of a traditional plasticizer is avoided, the low-odor plant-based plasticizer is adopted, odor is reduced, meanwhile, plant powder with plant faint scent is applied as filler, the hardness needed by the refrigerator sealing strip material can meet the sealing effect of a refrigerator, and the service life of the refrigerator is prolonged. And the problem of peculiar smell during door opening of the refrigerator is solved, the low-temperature performance is improved, and the method can be better applied to the field of manufacturing industry needing low-temperature sealing.

The invention relates to the field of edge sealing strips, and discloses an adhesive edge sealing strip for furniture and a preparation method thereof.The adhesive edge sealing strip comprises an edge sealing strip base material layer and a hot melt adhesive layer, and the edge sealing strip base material layer comprises polyvinyl chloride, modified nano calcium carbonate, hollow antibacterial microspheres, chlorinated polyethylene and auxiliaries; the modified nano calcium carbonate is prepared by grafting a functional coupling agent on the surface of nano calcium carbonate and then reacting with 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride; the functionalized coupling agent is prepared from N-(4-aminophenyl) maleimide and 3-mercaptopropyl triethoxy silane through a reaction; the hollow antibacterial microspheres are prepared from an antibacterial monomer, sodium p-styrylsulfonate, N, N-methylene bisacrylamide, n-hexane and hexadecyl trimethyl ammonium bromide through emulsion interfacial polymerization and quaternization reaction, wherein the antibacterial monomer is prepared from 5-hydroxymethylthiazole and isocyano ethyl methacrylate through a reaction, and the antibacterial monomer, the sodium p-styrylsulfonate, the N, N-methylene bisacrylamide, the n-hexane and the hexadecyl trimethyl ammonium bromide are used for preparing the hollow antibacterial microspheres. The edge band prepared by the invention has excellent tensile strength, aging resistance, heat resistance, heat insulation effect and antibacterial property.

The invention relates to the technical field of high polymer materials, and particularly discloses high-weather-resistance chlorinated polyethylene and a preparation method thereof. The high-weather-resistance chlorinated polyethylene is prepared from the following raw materials in parts by weight: 110 to 150 parts of chlorinated polyethylene, 9 to 15 parts of chloroprene rubber coated nano titanium dioxide, 38 to 60 parts of ionic liquid modified nano calcium carbonate, 5 to 10 parts of polyvinylidene fluoride resin, 10 to 20 parts of chlorinated paraffin and 1 to 6 parts of antioxidant, the preparation method comprises the following steps: S1, preparing chloroprene rubber coated nano titanium dioxide; s2, preparing ionic liquid modified nano calcium carbonate; s3, internal mixing; and S4, carrying out screw extrusion and press polish. The high-weather-resistance chlorinated polyethylene can be used for building waterproof coiled materials, outdoor protective coatings, automobile sealing strips, wire and cable sheaths and the like, and has the advantages of high tensile strength, elongation at break, impact toughness, ultraviolet aging resistance and thermo-oxidative degradation resistance.

The invention discloses a preparation method of high-strength chlorinated polyethylene resin, and relates to the technical field of chlorinated polyethylene preparation. The chlorinated polyethylene resin is prepared from the following raw materials: chlorinated polyethylene, a chlorinated polyethylene grafted copolymer, polyamide 6 micro powder, modified nano silicon dioxide, a mixed solvent and hexamethylene diisocyanate; the chlorinated polyethylene grafted copolymer is a grafted copolymer of allyl glycidyl ether and chlorinated polyethylene; the modified nano silicon dioxide is silane coupling agent surface modified nano silicon dioxide; the mixed solvent is obtained by mixing methylbenzene and dioxane. The preparation method of the high-strength chlorinated polyethylene resin comprises the following steps: preparing a chlorinated polyethylene grafted copolymer, carrying out solution mixing dispersion and cross-linking reaction, and preparing the chlorinated polyethylene resin. The chlorinated polyethylene resin prepared by the invention has relatively high strength and excellent corrosion resistance.

The invention relates to the technical field of underground cables, and provides a wear-resistant cable for a shield tunneling machine and a preparation method of the wear-resistant cable. The wear-resistant cable for the shield tunneling machine comprises a conductor, an insulating layer, an armor layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer is prepared from the following raw materials in parts by weight: 90-100 parts of polyvinyl chloride, 8-14 parts of chlorinated polyethylene, 8-10 parts of a plasticizer, 9-16 parts of filler, 1-4 parts of a stabilizer, 1-2 parts of an antioxidant, 1-3 parts of a lubricant, 1-3 parts of a compatilizer and 1-2 parts of a vulcanizing agent; the chlorinated polyethylene comprises first chlorinated polyethylene and second chlorinated polyethylene; the Mooney viscosity of the first chlorinated polyethylene is 40-60 under the conditions of ML1 + 4 and 121 DEG C; and the Mooney viscosity of the second chlorinated polyethylene is 70-90 under the conditions of ML1 + 4 and 121 DEG C. According to the technical scheme, the problem of poor impact strength of the wear-resistant cable for the shield tunneling machine in the prior art is solved.

The invention discloses a high-temperature-resistant low-permeability CPVC chemical pipe and a preparation process thereof, and relates to the technical field of CPVC, and the preparation method comprises the following steps: adding chlorinated polyethylene powder, quaternary ammonium salt sodium carboxymethyl cellulose modified boron nitride nanosheets, a heat stabilizer, p-phenylenediamine and terephthaloyl chloride into a mixer, heating to 80-90 DEG C, stirring for reaction for 45-60 min, and cooling to room temperature to obtain the high-temperature-resistant low-permeability CPVC chemical pipe. A premix is obtained; and adding the premix into a double-screw extruder, adding calcium stearate, and carrying out melt blending, extrusion molding, room-temperature vacuum setting and cooling setting to obtain the high-temperature-resistant low-permeability CPVC chemical pipe. The heat stabilizer is composed of an adenine metal complex and theophylline.