858 results about "POLYETHYLENE WAX" patented technology

The invention discloses a high-weather-resistance TPO waterproof coiled material and a preparation method thereof, and belongs to the technical field of high polymer materials. The waterproof coiled material is prepared from the following raw materials: high-density polyethylene, low-density polyethylene, an ethylene-octylene copolymer, ethylene propylene diene monomer, polypropylene, maleic anhydride grafted polyethylene, polyethylene wax, calcium carbonate powder, an antioxidant 1010, modified lignin, modified fumed silica and a modified nano inorganic composite light stabilizer. The tensile strength of the obtained waterproof coiled material is 20.3-21.3 MPa, the elongation at break is 602-621%, the tear strength is 69-77 N / mm, the low-temperature bending property is no crack at-40 DEG C, and the waterproof coiled material is very excellent in heat aging resistance, light aging resistance and artificial climate accelerated aging resistance.

The invention discloses an ultra-high molecular weight polyethylene fiber melt spinning method which comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene resin with polyethylene wax and high-density polyethylene to form a composition; 2, melting the composition at a high temperature to form a melt, carrying out melt spinning, and carrying out nozzle stretching and air cooling to obtain nascent fibers; and step 3, carrying out hot stretching and heat setting on the nascent fiber to obtain the final ultra-high molecular weight polyethylene fiber. By adopting the technical scheme, the melt flowability of the ultra-high molecular weight polyethylene can be greatly improved by the high-density polyethylene and the polyethylene wax, so that the ultra-high molecular weight polyethylene resin can be smoothly subjected to melt spinning. Meanwhile, in the hot stretching process, the polyethylene wax can participate in the crystallization process of the ultra-high molecular weight polyethylene resin and the high-density polyethylene, and finally the mechanical property of the ultra-high molecular weight polyethylene fiber can be well maintained.

The invention relates to the technical field of cables, and provides a fireproof flame-retardant 10kV power cable and a preparation method thereof. The fire-resistant flame-retardant 10kV power cable comprises a conductor and a fire-resistant flame-retardant layer, the fireproof flame-retardant layer is prepared from the following raw materials in parts by weight: 35 to 45 parts of linear low-density polyethylene, 40 to 50 parts of ethylene-vinyl acetate copolymer, 25 to 30 parts of modified aluminum hydroxide, 5 to 8 parts of polyethylene grafted maleic anhydride, 10 to 12 parts of phosphate modified halloysite nanotube, 5 to 8 parts of ZIF-8 loaded zinc borate core-shell particles, 15 to 20 parts of magnesium hydroxide and 2 to 3 parts of silane coupling agent. 0.5 to 1 part of antioxidant, 0.5 to 1 part of calcium stearate and 1 to 1.5 parts of polyethylene wax. According to the cable prepared in the invention, the situation that a conductor is exposed and the fire resistance is lost due to cracking and falling under long-time high-temperature baking is avoided; the continuous effectiveness of the flame retardant at high temperature is improved.

The invention discloses an anti-shrinkage light, soft and elastic sole foaming material and a preparation method thereof, and belongs to the technical field of footwear products. The light, soft and elastic sole foaming material is formed by chemically foaming an EVA (Ethylene Vinyl Acetate) composite raw material, the EVA composite raw material is prepared from 50 to 70 parts of EVA, 20 to 40 parts of olefin thermoplastic elastomer, 10 to 20 parts of styrene elastomer, 1.5 to 3 parts of maleic anhydride grafted ethylene-octylene copolymer compatilizer, 0.4 to 0.8 part of peroxide cross-linking agent, 3 to 4 parts of foaming agent, 1 to 1.5 parts of zinc oxide, 1 to 1.5 parts of polyethylene wax substance and 0.5 to 1.5 parts of poly (butylene succinate). 0.3 to 1 part of polyamide 12 microspheres and 2 to 3 parts of nano montmorillonite. The foaming material can resist shrinkage when being used as a shoe sole part, and has good rebound performance and the like, so that the high-quality requirement of sneakers, the mass production stability and the like are met.

The invention discloses water-based wear-resistant ink and a preparation method thereof, and belongs to the technical field of ink. The ink is prepared from the following components in parts by weight: 20 to 35 parts of waterborne polyurethane resin, 15 to 25 parts of waterborne acrylic resin with an acid value of 40 to 80 mg KOH / g, 5 to 15 parts of KH570 silane coupling agent modified nano aluminum oxide, 3 to 8 parts of polyethylene wax emulsion, 10 to 20 parts of pigment and auxiliaries. The preparation method comprises the following steps: firstly, carrying out surface modification on the nano aluminum oxide by using KH570, and then mixing, dispersing and grinding all the components. Through the synergistic effect of the acrylic resin with a specific acid value and the modified nano aluminum oxide, the problem that nano particles are easy to agglomerate in a system is solved, the nano particles can be stably dispersed, and the interface bonding with the resin is enhanced, so that the ink is endowed with excellent adhesive force, wear resistance and storage stability while the process is simplified and the cost is reduced; the BOPP film packaging material is especially suitable for BOPP film packaging materials.

The invention relates to the technical field of power cables, in particular to a heat-aging-resistant crosslinked polyethylene insulated power cable and a preparation method thereof. The cable comprises conductor wire cores, an insulating layer, a filling layer, a composite function layer, a steel tape armoring layer and a sheath layer from inside to outside. The insulating layer is composed of semi-conductive crosslinked polyethylene, silicone resin, nano montmorillonite and an HALS light stabilizer; the filling layer is composed of plasticized glass fabric, polyphenylene sulfide and rare earth oxide; the composite functional layer sequentially comprises a heat-conducting inner layer, a flame-retardant middle layer and an anti-UV outer layer from inside to outside; the sheath layer is composed of polyolefin, white carbon black, ceramic silicone rubber, a flame retardant, polyethylene wax and an initiator. According to the cable, cross-linked polyethylene and silicone resin are preferably selected as heat-resistant materials, heat conduction / flame retardance / UV resistance / armored multi-layer synergistic protection is achieved, the mechanical barrier performance is improved, meanwhile, damage of thermal stress to internal materials is reduced, comprehensive improvement of thermal aging resistance is achieved, and the cable is suitable for high-temperature, high-humidity and frequent thermal cycle harsh environments.

The invention discloses a preparation method of an ultra-high molecular weight polyethylene uniaxially oriented film, which comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene resin and polyethylene wax to obtain a mixture; 2, melting the mixture at a high temperature to obtain a high-temperature melt; 3, the high-temperature melt is subjected to extrusion casting, and a primary film is obtained; and 4, carrying out uniaxial hot stretching on the primary film to obtain the final ultrahigh molecular weight polyethylene uniaxial oriented film. The melt flowability of the ultra-high molecular weight polyethylene is improved by utilizing the polyethylene wax, the polyethylene wax can participate in crystallization of the ultra-high molecular weight polyethylene by controlling the temperature in uniaxial hot stretching, and extended chain crystals in the ultra-high molecular weight polyethylene are reserved, so that the mechanical property of the ultra-high molecular weight polyethylene film is improved.

The invention relates to the technical field of cables, and provides a high-temperature-resistant flame-retardant power cable and a preparation method thereof. A high-temperature-resistant flame-retardant power cable comprises a conductor and a high-temperature-resistant flame-retardant outer layer wrapping the conductor. The high-temperature-resistant flame-retardant outer layer is prepared from the following raw materials in parts by weight: linear low-density polyethylene, an ethylene-vinyl acetate copolymer, ethylene propylene diene monomer, chopped polyimide fibers, nano-coated magnesium hydroxide, zinc borate, zinc stannate, polyethylene grafted maleic anhydride, an anti-aging agent, dicumyl peroxide, an antioxidant, polyethylene wax, calcium stearate and cerium dioxide. According to the cable prepared in the invention, the reliability of an existing high-temperature-resistant flame-retardant power cable under thermal cycle is improved, and the problem of local temperature resistance difference caused by agglomeration and high-temperature migration of nanoparticles in a polymer matrix is improved.

The invention relates to the technical field of cables, and provides an anti-aging insulated power cable. A conductor layer and an anti-aging outer sheath layer are sequentially arranged from inside to outside. The anti-aging outer sheath layer is prepared from the following raw materials in parts by weight: 55 to 65 parts of PVC (Polyvinyl Chloride) resin, 20 to 30 parts of ethylene propylene diene monomer, 10 to 15 parts of ethylene-vinyl acetate copolymer, 10 to 12 parts of modified kaolin, 18 to 20 parts of diisononyl phthalate, 4 to 5 parts of calcium-zinc composite stabilizer, 1.5 to 2 parts of antioxidant, 0.5 to 1 part of polyethylene wax and 0.5 to 0.7 part of calcium stearate; the modified kaolin is obtained by coating the surface of kaolin with nano silicon dioxide to obtain SiO2-coated kaolin and grafting the SiO2-coated kaolin with an ultraviolet absorbent. According to the anti-aging insulated power cable prepared in the invention, the problem that the ultraviolet absorbent may be decomposed, volatilized or migrated to fail in long-term use is solved, and the anti-aging stability of the insulating material in long-term operation is improved.

The invention relates to the technical field of polyethylene wax preparation, in particular to polyethylene wax with ultralow molecular weight, high crystallinity and narrow molecular weight distribution and a preparation method thereof.The preparation method comprises the steps that under the conditions that the temperature ranges from 60 DEG C to 180 DEG C and the pressure ranges from 0.5 MPa to 5.0 MPa, ethylene is introduced into a reaction device, an organic solvent is continuously added to serve as a medium, and the polyethylene wax with the ultralow molecular weight, the high crystallinity and the narrow molecular weight distribution is obtained; and adding alkyl aluminum halide and alkoxy titanium to carry out high-temperature solution polymerization reaction, and after the reaction is ended, cooling and drying to obtain the polyethylene wax. The polyethylene wax prepared by the invention has the characteristics of ultralow molecular weight, high crystallinity and narrow molecular weight distribution, and the molecular weight and the molecular weight distribution can be effectively adjusted in various modes, such as adjustment of substituent groups on phenyl or polymerization reaction conditions; meanwhile, compared with polyethylene wax in the prior art, the polyethylene wax produced by the process has remarkable advantages.

The invention relates to the technical field of wax emulsions for yarn weaving, in particular to a wax emulsion which has spinnability, hand feeling and stability and is free of layer difference and a preparation method and application of the wax emulsion. The wax emulsion comprises a component A and a component B, wherein the component A is selected from two or more of oxidized modified polyethylene wax, fatty alcohol-polyoxyethylene ether and paraffin; the component B is prepared from the following components in percentage by weight: 2.5 to 5 percent of a cationic surfactant, 2.5 to 5 percent of a nonionic surfactant, 0.1 to 0.5 percent of an antibacterial agent, 0.5 to 1 percent of a pH regulator and the balance of water. The wax emulsion provided by the invention has excellent lubricating effect, softening effect and permeation effect, has no middle-outer layer difference and excellent stability, and does not influence the color light and fastness of a dyed fabric.

The invention discloses an anti-crack wear-resistant reflective enhanced hot-melt marking coating and a preparation method thereof. The marking coating comprises the following components: a film-forming substance, EVA (Ethylene Vinyl Acetate), titanium dioxide, glass beads, a filler, polyethylene wax, an anti-ultraviolet aging agent, anti-crack reinforced fibers, a wear-resistant reinforced material and white oil. The preparation method of the marking paint comprises the step of uniformly mixing the components to obtain the product. According to the anti-crack wear-resistant reflective enhanced hot-melt marking coating and the preparation method thereof, the problems that a hot-melt marking is cracked, is not wear-resistant, is not lasting in light reflection and the like are solved.

The invention discloses a UV (ultraviolet) excimer skin-touch paint for a relief melamine base material and application of the UV excimer skin-touch paint, and relates to the technical field of paints.The UV excimer skin-touch paint comprises the following components in percentage by weight: 15-50% of UV adhesion promoting resin; 5-10% of modified epoxy acrylate resin; 20 to 50% of special modified polyurethane acrylate resin; 5-20% of amino acrylate resin; 1-5% of phosphoric acid modified acrylate resin; 0.1-1% of a surface tension control agent A; 0.1-1% of a surface tension control agent B; 0.1-1% of a defoaming agent; 0.2-2% of an organosilicon hand feeling auxiliary agent; 0.1 to 0.5 percent of organic silicon leveling agent; 2-8% of a photoinitiator C; 0.3-1% of a wetting dispersant; 1-5% of polyethylene wax powder; and 10-30% of a UV active monomer. According to the invention, the relief melamine base material can realize open coating of the excimer skin-touch paint, and the coated paint film has good surface effect, uniform plate surface gloss without floating, no dust and no white exposure of the guide pipe, and good open effect.

The invention discloses a preparation method of an ultra-high molecular weight polyethylene biaxially oriented film, and relates to the field of high polymer materials, and the preparation method comprises the following steps: step 1, mixing ultra-high molecular weight polyethylene and polyethylene wax to obtain a composition; 2, melting and plasticizing the obtained composition, and extruding to form a thin-wall tubular film after melting and plasticizing; 3, the thin-wall tubular film is subjected to blowing, traction and rolling, and the final ultra-high molecular weight polyethylene film is obtained. The melt flowability of the ultra-high molecular weight polyethylene is improved by utilizing the polyethylene wax, and the polyethylene wax can participate in crystallization of the ultra-high molecular weight polyethylene by controlling the blow molding process, so that the mechanical property of the ultra-high molecular weight polyethylene biaxially oriented film is improved.

The invention relates to blended modified asphalt and a preparation method thereof, and belongs to the technical field of asphalt material compositions. The blended modified asphalt is prepared from 90 # heavy traffic road petroleum asphalt, 70 # road petroleum asphalt, natural rock asphalt, an emulsifier op-10, an HDI-trihydroxymethyl hexyl lactone cross-linked polymer, phenylpropyl dimethyl siloxy silicate ester, vinyl-terminated polydimethylsiloxane, thermoplastic styrene-butadiene rubber, nanoscale calcium carbonate, organobentonite and diatomite according to a specific proportion. Polyethylene wax, an anti-rut agent, an antioxidant and the like. Wherein the natural rock asphalt is pre-modified by the HDI-trihydroxymethyl hexyl lactone cross-linked polymer, the 70 # road petroleum asphalt is pre-modified by the phenylpropyl dimethyl siloxy silicate ester, and the thermoplastic styrene-butadiene rubber is pre-modified by the vinyl terminated polydimethylsiloxane. The modified components are better in compatibility and good in blending homogeneity, the components are not easy to reject, and the blended modified asphalt is excellent in use performance.

The invention relates to the technical field of bottom protection plates, and provides an engine bottom protection plate and a preparation method thereof. The engine bottom protection plate is prepared from the following raw materials in parts by weight: 40 to 50 parts of polypropylene, 15 to 20 parts of glass fiber, 5 to 10 parts of silicon carbide modified carbon fiber, 5 to 9 parts of nano silicon dioxide, 2 to 3 parts of compatilizer, 0.5 to 1 part of antioxidant, 0.3 to 0.5 part of calcium stearate and 0.4 to 0.6 part of polyethylene wax. The engine bottom guard plate provided by the invention is high in hardness, also has certain acid and alkali resistance, keeps good mechanical properties, and meets the development of the modern automobile industry and the change of consumer demands.

The invention belongs to the technical field of waterproof and drainage boards, and provides a waterproof and drainage board with high compressive strength and tensile strength and a preparation method and application thereof.The waterproof and drainage board is formed by compounding an upper layer, a middle layer and a lower layer, and the upper layer and the lower layer are each prepared from 30-40 parts of high-density polyethylene, 10-20 parts of chlorinated polypropylene, 10-15 parts of metallocene polyethylene and 1-3 parts of carbon nanotubes; 2-5 parts of nano calcium carbonate, 1-5 parts of polyethylene wax, 1-3 parts of an antioxidant and 1-3 parts of an anti-ultraviolet agent; the middle layer is prepared from the following raw materials: 35 to 55 parts of linear low-density polyethylene, 15 to 30 parts of metallocene polyethylene, 10 to 15 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of POE (Polyolefin Elastomer), 5 to 10 parts of aramid chopped fiber, 1 to 3 parts of antioxidant and 1 to 3 parts of ultraviolet screening agent; the nano calcium carbonate is subjected to modification treatment. The waterproof and drainage board has relatively high compressive strength and tensile strength, and has a good application prospect.

The invention relates to the technical field of degradable materials, and discloses a water-soluble degradable fiber and a preparation method thereof. The water-soluble degradable fiber disclosed by the invention is prepared by taking polylactic acid as a main matrix, adding modified sodium lignin sulfonate, polyvinyl alcohol and polyethylene wax, blending, carrying out melt extrusion, and carrying out melt spinning. The fiber has water solubility, degradability, sand carrying performance and salt resistance, and has a good application prospect in a fracturing fluid used in a well drilling fracturing process based on the advantages of water solubility, degradability, sand carrying performance and salt resistance.

The invention discloses a method and a system for repairing freeze-thaw damage of power plant concrete. According to the invention, the combination of Portland cement and nano-silica in the repairing material enhances the compactness of concrete and reduces the number of capillary pores, and the silane coupling agent significantly improves the bonding strength between the repairing material and original concrete and ensures the long-term stability of a repairing layer; the alkali activator sodium hydroxide accelerates the hydration reaction of the cement, and improves the early strength and durability of the repair material; the antibacterial agent benzalkonium bromide effectively inhibits the growth of bacteria, prevents microorganisms from eroding the concrete, and prolongs the service life of the repair structure; the defoaming agent alkyl sulfate reduces bubbles in the repairing material and improves the compactness and impermeability of the concrete; tiny air bubbles are introduced into the air entraining agent polyethylene wax, so that the freezing resistance and the crack resistance of the concrete are enhanced, and the high efficiency and the reliability of a repair project in a complex environment are also ensured.

The invention discloses a high-barrier polyethylene film and a preparation method thereof, and relates to the technical field of high polymer materials. The invention discloses a high-barrier polyethylene film. The high-density polyethylene composite material is prepared from the following raw materials in parts by weight: 25 to 40 parts of high-density polyethylene, 15 to 30 parts of linear low-density polyethylene, 8 to 16 parts of ethylene-vinyl alcohol copolymer, 3 to 8 parts of nano montmorillonite, 5 to 10 parts of modified layered double hydroxide, 2 to 6 parts of nano silicon dioxide aerogel, 0.2 to 0.6 part of antioxidant 1076, 0.1 to 0.4 part of light stabilizer UV-770, 3 to 7 parts of tributyl citrate and 1 to 3 parts of octadecanamide. 1-3 parts of polyethylene wax, 0.6-1.2 parts of a silane coupling agent KH560 and 7-12 parts of a functional additive. According to the high-barrier polyethylene film disclosed by the invention, by using the modified layered double hydroxide and the functional additive, the barrier property and the antibacterial property are enhanced, the mechanical property is improved, the comprehensive performance is excellent, and the application prospect is good.

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.

The invention discloses a chromium-free fingerprint-resistant coating agent for a galvanized steel sheet and a preparation method of the chromium-free fingerprint-resistant coating agent. The chromium-free fingerprint-resistant coating agent is prepared from the following elements in percentage by mass: 1%-5% of sodium molybdate or / and sodium tungstate, 0.5%-2% of a phytic acid-chitosan compound, 0.3%-1.0% of a chelating titanate coupling agent, 2%-5% of fluorosilane modified nano SiO2, 30%-55% of waterborne hyperbranched polyurethane resin, 0.5%-2% of oxidized polyethlene wax and the balance of deionized water. The chromium-free fingerprint-resistant coating agent disclosed by the invention has excellent fingerprint resistance, high adhesive force and environmental protection property, is free of white rust in neutral salt mist for 150 hours and red rust in neutral salt mist for 360 hours, the white rust area is less than 5%, the industrial requirements of galvanized steel sheet surface treatment are met, and the problem of environmental risk in the prior art is avoided by adopting the combination of bio-based corrosion inhibitors.

The invention relates to the technical field of cables, and provides a high-temperature-resistant flame-retardant cable and a preparation method thereof. The high-temperature-resistant flame-retardant cable comprises a conductor and a flame-retardant outer sheath, the flame-retardant outer sheath is prepared from the following raw materials in parts by weight: 40 to 50 parts of linear low-density polyethylene, 35 to 45 parts of ethylene-vinyl acetate copolymer, 10 to 15 parts of ethylene propylene diene monomer, 15 to 18 parts of modified aluminum hydroxide, 10 to 14 parts of modified magnesium hydroxide, 5 to 8 parts of polyethylene grafted maleic anhydride, 5 to 8 parts of microencapsulated red phosphorus, 2 to 3 parts of silane coupling agent and 0.8 to 1 part of antioxidant. The composite material is prepared from the following components in parts by weight: 0.5-1 part of a light stabilizer, 0.5-1 part of calcium stearate, 0.8-1 part of polyethylene wax and 0.5-0.9 part of carbon nanotubes. According to the cable prepared in the invention, the performance stability of an existing high-temperature-resistant material in a high-temperature environment is improved, and the problems of softening, melting and the like of the cable are avoided.

The invention relates to the technical field of road engineering materials, in particular to a blade glass fiber regenerated RPC type wear-resistant and rut-resistant rubber and plastic composite auxiliary material. The material is prepared from the following components in parts by weight: 40 to 60 parts of regenerated polyethylene, 20 to 40 parts of modified wind driven generator blade regenerated glass fiber powder, 10 to 20 parts of rubber powder, 3 to 8 parts of maleic anhydride grafted polyethylene, 5 to 10 parts of styrene-butadiene-styrene block copolymer (SBS), 1 to 3 parts of polyethylene wax and 5 to 10 parts of calcium powder. The preparation process of the modified regenerated polyethylene comprises the steps of isocyanate esterification and porous microspheroidization. The modified wind driven generator blade regenerated glass fiber powder is prepared by performing acid etching on wind driven generator blade regenerated glass fiber powder, performing plasma activation, and compounding polyfunctional group titanate and a polyamino silane coupling agent. The leaf glass fiber regenerated RPC type wear-resistant and rut-resistant rubber and plastic composite auxiliary material prepared by the preparation method disclosed by the invention has the advantages that various properties of an asphalt pavement are remarkably improved, meanwhile, green cyclic utilization of waste resources is realized, and remarkable economic and social benefits are achieved.

The invention relates to the technical field of cables, in particular to a fireproof cable for a subway, which comprises a plurality of cable cores and a PET (Polyethylene Terephthalate) film layer, a mica tape wrapping layer, a copper net shielding layer and an outer sheath are sequentially coated outside the PET film layer; the outer sheath is prepared from the following raw materials in parts by weight: 50-60 parts of PVC resin, 8-15 parts of nylon 66 resin, 5-10 parts of aliphatic TPU, 5-8 parts of EVA-G-MAH, 3-5 parts of POE-G-MAH, 1-3 parts of a calcium-zinc stabilizer, 10-20 parts of a filler, 1-2 parts of polyethylene wax, 0.5-1 part of calcium stearate, 10-20 parts of a flame retardant, 10-30 parts of a plasticizer and 0.1-0.5 part of an antioxidant. The outer sheath prepared by the invention has excellent mechanical properties and excellent fireproof and flame-retardant properties, not only is high in flame-retardant grade, but also is small in heat and smoke production after combustion, and is an excellent material for preparing fireproof cables for metro.

The invention discloses an environment-friendly degradable plastic food packaging bag and a preparation method thereof.The food packaging bag is prepared from, by weight, 90-100 parts of PBAT, 10-20 parts of PLA, 15-20 parts of antibacterial modified nano calcium carbonate, 1-2 parts of polyethylene wax and 1-2 parts of titanium dioxide, a large proportion of PBAT and a small proportion of PLA are used as base materials, and the base materials are prepared into the environment-friendly degradable plastic food packaging bag. When the component ratio difference is large, the intermolecular acting force of PBAT and PLA is stronger, the miscibility is better, the two base materials are mixed and dissolved to prepare base particles, and then the base particles are mixed and melted with other components, so that better compatibility can be achieved, and the mechanical property of the prepared degradable plastic food packaging bag is more excellent; when the antibacterial modified nano calcium carbonate is melted with other components of the plastic food packaging bag, the antibacterial modified nano calcium carbonate has better compatibility and better material fluidity during melting, meanwhile, silver of the prepared plastic bag is not easy to separate out, and the antibacterial performance of the plastic food packaging bag can be kept for a long time.

The invention relates to a polymer, a color master batch composition and a corresponding polyolefin product. By designing and synthesizing an alternating copolymer of maleic anhydride and a vinyl monomer, a polar succinic anhydride chain segment and a non-polar long-carbon alkyl chain segment are alternately formed on a main chain of the alternating copolymer, so that the steric hindrance effect of the polymer and the dispersion and coating effects on the pigment are further improved. The alternating copolymer of maleic anhydride and a vinyl monomer and low-molecular-weight polyethylene wax are used as dispersing agents to be applied to the color master batch composition, the dispersing performance and the anti-aging effect on pigments can be improved, and finally prepared polyolefin products are lower in color difference, more stable in coloring performance and better in ultraviolet aging resistance. Meanwhile, a light component byproduct alpha olefin dimer generated in the alpha olefin coordination polymerization process is also utilized, the application field of the low-molecular-weight poly alpha olefin is expanded, and the economic value of the low-molecular-weight poly alpha olefin is improved.

The invention relates to the technical field of wires and cables, and particularly discloses a mining extrusion-resistant wear-resistant cable with a tensile enhancement layer and a preparation method thereof. The invention relates to a mining extrusion-resistant wear-resistant cable with a tensile enhancement layer. The mining extrusion-resistant wear-resistant cable comprises a wire core conductor, an insulating layer, an inner sheath, the tensile enhancement layer and an outer sheath from inside to outside, the outer sheath and the inner sheath are made of the same raw material; the inner sheath comprises the following raw materials: high-density polyethylene, epoxidized soybean oil, a compound lubricant, a compound wear-resistant filler, a flame retardant, an antioxidant and an ultraviolet light absorber; the compound lubricant is a compound of calcium stearate and oxidized polyethlene wax; the compound wear-resistant filler is a compound of nano polytetrafluoroethylene and silicon carbide. According to the extrusion-resistant and wear-resistant cable for the mine, the tensile strength and the elongation at break can reach 24.9 MPa and 450% to the maximum extent, the wear resistance is 96 mm < 3 > to the minimum extent, and the wear resistance and the pressure resistance of the extrusion-resistant and wear-resistant cable for the mine are improved.

The invention relates to the field of resource recycling, and discloses an iron slag ash and waste soil composite curing agent as well as a preparation method and application thereof. The composite curing agent comprises the following components in parts by weight: 30-50 parts of iron slag ash; 20 to 40 parts of waste soil; 10-20 parts of industrial alkaline residues; 5-10 parts of a functional auxiliary agent; 3-5 parts of a curing synergist; the curing synergist is composed of an inner core and a coating layer, the inner core material comprises a porous carrier and an exciting agent, and the film forming material of the coating layer is one or more of stearic acid, paraffin and polyethylene wax; the weight ratio of the core material to the coating layer material is (8-9): 1. According to the composite curing agent, resource utilization of waste is achieved, the material cost is remarkably reduced, and the composite curing agent is particularly suitable for flow-state backfilling, light filling and sludge in-situ curing and has remarkable environmental protection and economic benefits.

The invention relates to the technical field of cables, and provides a corrosion-resistant insulated power cable. The corrosion-resistant insulated power cable is sequentially provided with a conductor layer, an insulating layer and a sheath layer from inside to outside, and the insulating layer is prepared from the following raw materials in parts by weight: low-density polyethylene, magnesium hydroxide and calcium carbonate composite powder, an antioxidant, dicumyl peroxide, zinc stearate and polyethylene wax; the sheath layer comprises the following raw materials in parts by weight: PVC resin, magnesium hydroxide and calcium carbonate composite powder, diisononyl phthalate, a calcium-zinc composite stabilizer, an antioxidant, polyethylene wax and calcium stearate. According to the corrosion-resistant insulated power cable prepared in the invention, the corrosion resistance of the power cable in extreme corrosion environments such as strong acid, strong alkali, high-concentration salt mist and the like is improved, and the condition that a common cable sheath is easy to expand and crack in the extreme corrosion environments is improved.