220 results about "Polyvinyl chloride" patented technology

A heat-resistant insulated PVC material for communication cables comprises the following components and parts by weight: polyvinyl chloride 45-55; stabilizer 5-10; plasticizer 15-25; nitrile oxide 3-8; aluminum hydroxide 10-15; magnesium hydroxide 20-30; smoke suppressant 1-5; skin coupling agent 1-3; IPPP 10-20. The product obtained by this invention is lightweight, has good physical and mechanical properties, excellent mechanical balance, superior flame retardancy, good thermal stability, and no dripping.

This application relates to the field of cable materials, specifically disclosing a low-smoke, low-halogen polyvinyl chloride (PVC) cable material and its preparation method. The material includes the following raw materials: polyvinyl chloride resin, EVM500 rubber, heat stabilizer, antioxidant, plasticizer, lubricant, filler, flame retardant, flame retardant synergist, and acrylate processing aids. The flame retardant includes a mixture of aluminum hydroxide and magnesium hydroxide, and the flame retardant synergist includes a zinc borate and ammonium octamolate-sepiolite composite. The preparation method includes the following steps: mixing the raw materials according to a specified ratio, then melting and mixing them, followed by granulation and extrusion molding to obtain the low-smoke, low-halogen PVC cable material. This application alleviates the problem of traditional PVC cable materials producing large amounts of black smoke and toxic gases during combustion, reduces smoke density, and improves the material's environmental performance and flame retardant properties.

This utility model provides a high-mesh sieve for fiber content testing, including a base. The base has an output chamber tube with an opening that runs vertically through it. A detachable sieve is installed at the top of the output chamber tube. The sieve tube has a screening chamber with an outward opening. A high-mesh sieve is fixedly installed at the bottom of the screening chamber. Two splitting bases are fixedly installed on the inner wall of the screening chamber, with the splitting bases on both sides symmetrically arranged. This design, through the cascading design of an upper low-mesh sieve and a lower high-mesh sieve, achieves a synergistic operation mode of rapid impurity separation by coarse sieving and targeted fiber retention by fine sieving, thus improving fiber separation efficiency. Furthermore, the sieve frame is made of 304 stainless steel, and the middle sieve uses polyvinyl chloride fabric, improving the durability of the sieve and extending its service life.

The utility model relates to cleaning equipment technical field, specifically is a kind of polyvinyl chloride resin production is used polymeric kettle cleaning equipment, including mounting bracket, the adjusting frame is slidably connected on the mounting bracket, the reel is installed on the adjusting frame, the hose is installed on the reel, the cleaning head is installed on the hose, the guide pipe is slidably connected on the hose, the fixed assembly is equipped on the guide pipe, the fixed assembly includes locating post, two locating posts are fixedly connected on the guide pipe, the locating post is slidably connected with fixed block, the fixed block is trapezoidal structure, the connecting plate is fixedly connected on the fixed block, and spring is fixedly connected between the connecting plate and locating post;By the flange disc of fixed block in the action of spring and slide out and polymeric kettle upper cleaning mouth place hook, it is convenient to quickly fix guide pipe, improve the fixing efficiency of guide pipe.

To provide an exterior laminate that can be used as an exterior component and is capable of sufficiently suppressing heat accumulation due to radiant heat such as sunlight. [Solution] An exterior laminate 10 is disclosed, having, in order from the surface side, a) a transparent film layer 1 containing an acrylic resin, c) a printed layer 2, and b) a colored film layer 3 containing a polyvinyl chloride resin, wherein the printed layer 2 of c) does not contain carbon black, the solar transmittance of the printed layer 2 of c) is 70% or more, and the solar absorptance is 20% or less. Preferably, the printed layer 2 of c) contains a perylene-based colorant and / or a phthalocyanine-based colorant.

The application discloses a ship polyvinyl chloride sheath cable and a preparation method thereof, and relates to the technical field of polyvinyl chloride sheath cables. Firstly, 2-vinylbenzoic acid and epichlorohydrin are subjected to ring-opening esterification reaction, and the two are combined together through the chemical reaction. Then, sodium hydroxide is added to the reaction system, and the reaction is further promoted to the direction of generating an epoxy group by removing hydrogen chloride, so that an epoxy group is successfully introduced into the molecular structure of 2-vinylbenzoic acid, and a multifunctional additive is prepared. The newly developed additive is applied to the production process of the ship polyvinyl chloride sheath cable, so that the cable has the characteristics of oil resistance, water resistance and corrosion resistance, and the flame retardation performance and long-term antioxidant capacity of the cable are significantly improved.

The application relates to the technical field of polyvinyl chloride sleeves, and discloses a flame-retardant PVC sleeve and a preparation method thereof. The flame-retardant PVC sleeve comprises an inner tube, a metal copper mesh coated on the outer side of the inner tube, and an outer tube coated on the outer sides of the metal copper mesh and the inner tube by injection molding. The raw material of the inner tube comprises the following components: 80-150 parts of polyvinyl chloride, 1-3 parts of chlorinated polyethylene, 20-40 parts of active nano calcium carbonate, 1-2 parts of paraffin, 1-2 parts of stearic acid, 1-3 parts of a flame retardant, and 1-2 parts of a calcium-zinc stabilizer. The raw material of the outer tube comprises the following components: 50-120 parts of polyvinyl chloride, 1-5 parts of activated fiber, 10-20 parts of active nano calcium carbonate, 1-2 parts of zeolite powder, 1-2 parts of magnesium oxide, 1-2 parts of paraffin, 1-2 parts of polyethylene wax, 1-2 parts of stearic acid, 1-5 parts of a flame retardant, 1-3 parts of a calcium-zinc stabilizer, and 1-2 parts of a processing aid LPA40. The application further discloses a preparation method of the flame-retardant PVC sleeve.

This application provides a seat and a vehicle. The seat includes an upholstery layer, a foamed layer, and a framework support layer. The foamed layer is located between the upholstery layer and the framework support layer. The upholstery layer includes a first layer and a second layer, where the first layer is a leather material, a polyurethane material, a polyvinyl chloride material, or a braided material, and the second layer is a composite layer of ventilation sponges. The foamed layer includes a third layer and a fourth layer, where the third layer is a high-elasticity sponge and the fourth layer is supportive foam. According to embodiments of this application, driving and ride experience of a user can be improved.

This invention relates to an EV cable material for charging piles. It comprises the following components and parts by weight: 45-55 parts polyvinyl chloride (PVC), 5-10 parts stabilizer, 35-50 parts plasticizer, 25-50 parts P83 rubber, 2-5 parts flame retardant, 10-20 parts propylene diene monomer (PPD) rubber, 10-25 parts TPU, 0.1-0.4 parts lubricant, 0.2-0.8 parts antioxidant, and 1-2 parts anti-aging agent. The EV cable material of this invention is soft to the touch, has good oil resistance, high tear strength, is lightweight, and has good flame retardancy. It does not require radiation cross-linking and can meet the long-term operating requirements of cables at 125°C, achieving a truly environmentally friendly flame-retardant material. Compared with thermosetting low-smoke halogen-free materials and other materials, it is a cost-effective alternative.

This utility model discloses a mixing device for producing environmentally friendly thermoplastic polyvinyl chloride (PVC), including a support frame mounted on a main body and a mixing chamber installed within the support frame. A geared motor is mounted on the side of the support frame at the top of the main body, and the output end of the geared motor is connected to the inside of the mixing chamber. A protective cover is mounted on the top of the mixing chamber, and a hydraulic device is mounted on the top of the protective cover. A sealing cap is mounted on the bottom of the protective cover. Through the designed sealing mechanism, the problem of the sealing material and size being incompatible with the working environment of the mixing chamber during the production of environmentally friendly thermoplastic polyvinyl chloride (PVC) is improved. This mismatch leads to aging and failure to achieve a sealing effect. The sealing mechanism uses polytetrafluoroethylene (PTFE) composite material for both the sealing gasket and the sealing sleeve, which is temperature-resistant, wear-resistant, and chemically resistant, matching the high-temperature and additive-containing environment of the mixing chamber. Furthermore, the sealing gasket can be disassembled and replaced as needed, increasing the flexibility of use.

This utility model discloses a polyvinyl chloride suspension polymerization reactor, relating to the field of polymerization reactor technology. It includes an outer reactor body with a connecting frame on its annular side. A right-angle gear is rotatably connected inside the connecting frame, and a connecting block is fixedly connected to the lower surface of the connecting frame. An inner reactor body is rotatably connected inside the outer reactor body. During the stirring process, the output shaft of a servo motor drives the fixed right-angle gear to rotate. The rotation of the right-angle gear causes the inner reactor body, which is engaged with it, to rotate as well. The inner reactor body is rotatably mounted inside the outer reactor body via two fixed connecting rings. At this time, the rotation direction of the inner reactor body is opposite to that of the stirring rod. This interaction allows the materials to be subjected to forces in different directions, resulting in more thorough mixing and effectively improving the polymerization reaction effect.

An elastomeric formulation for producing a tread portion of a tire includes uncrosslinked rubber, reinforcing filler particles, polyvinyl chloride (PVC) particles, curative ingredients, and one or more additives. A tread portion of a tire includes (a) an elastomeric matrix comprising vulcanized rubber and polyvinyl chloride (PVC) and (b) reinforcing filler particles dispersed in the elastomeric matrix. A method of making a tread portion of a tire includes: forming a final batch mixture including uncrosslinked rubber, reinforcing filler particles, polyvinyl chloride (PVC) particles, one or more additives, and curative ingredients; rolling / milling the final batch mixture to form a precured rubber sheet; extruding the precured rubber sheet to form a green tread portion; assembling the green tread portion with other tire components; and exposing the green tread portion to heat and pressure to induce vulcanization, thereby forming a tread portion of a tire.

The application relates to the field of crosslinked polyethylene insulated power cables, and particularly discloses a water treeing resistant crosslinked polyethylene insulated power cable and a preparation method thereof. The power cable comprises a cable core and a sheath layer from inside to outside, the cable core comprises a conductor, an inner non-metal semi-conductive shielding layer, a crosslinked polyethylene insulation layer, an outer non-metal semi-conductive shielding layer and a metal shielding layer from inside to outside, and the sheath layer comprises a polyvinyl chloride sheath layer and a polyvinyl chloride outer coating layer from inside to outside; the crosslinked polyethylene insulation layer is prepared by extrusion of water treeing resistant composite masterbatch and DCP crosslinking agent. The preparation method comprises the following steps: preparing the water treeing resistant composite masterbatch; preparing the cable core; and preparing the sheath layer. The water treeing resistant crosslinked polyethylene insulated power cable can resist water treeing and simultaneously maintain good tensile strength and elongation at break.

This invention relates to the field of chemical experimental equipment technology and discloses a multi-process integrated chemical drying experimental device, including a device frame. A vortex air pump is fixedly connected to the inner bottom frame of the device frame. An electric heater is fixedly connected to the output end of the vortex air pump. The output end of the electric heater is fixedly connected to a spray drying tower, a fluidized bed drying tower, and a vibrating fluidized bed dryer through a multi-way switching valve. Cyclone separators are fixedly connected to the exhaust ends of the spray drying tower, the fluidized bed drying tower, and the vibrating fluidized bed dryer. A hopper is fixedly connected to the upper surface of the device frame. A near-infrared online moisture meter is fixedly connected inside the device frame. A near-infrared online moisture display is fixedly connected to the outer surface of the near-infrared online moisture meter. The multi-way switching valve enables independent supply of hot air to each drying device, which can be adapted to the drying experimental needs of different powder / granular materials such as polyvinyl chloride resin powder and Shuanghuanglian granules.

The present disclosure is directed to a formulations of cements and methods for bonding dissimilar materials. The formulations and methods can bond a Non-polyvinyl chloride (PVC) containing first polyolefin that is amorphous or has low crystallinity to a second material that is a rigid material or a hard PVC. The methods and formulations can work by co-dissolution at an interface, or activation of a one of the materials prior to bonding.

A composite material comprising an adhesive film comprising a polar polymer bonding layer of ethylene methyl acrylate and ketene vinyl acrylate, and a bonding resin of polyethylene, polypropylene, ethyl vinyl acetate, acrylate, or combinations thereof; a metal substrate adhered to the bonding resin; and a polymer layer adhered to the polar polymer bonding layer, the polymer layer comprising polyvinyl chloride.

The application discloses a kind of sandwich rubber yoga mat and manufacturing method thereof, and technical solution points are as follows: a kind of sandwich rubber yoga mat manufacturing method, comprising the following steps: step one: according to the proportion of preset ingredient proportioning to form mixed material, mixed material includes polyvinyl chloride, plasticizer, foaming agent, color paste, calcium carbonate and butadiene rubber;Step two: mixed material is stirred using stirring mechanism;Step three: using coating machine to coat mixed material to form strip base band;Step four: strip base band is foamed;Step five: two strip base bands are coated with glue, and moisture-absorbing pad is arranged between two strip base bands, and the three are adhered to form yoga mat using glue;Step six: anti-skid rubber pad is sewn on the bottom of yoga mat;Step seven: yoga mat is wound using winding roller;Step eight: printing mechanism is used to print yoga mat;Yoga mat can be cut using cutting mechanism such as cutting knife, and yoga mat is taken out, and the printing work of yoga mat is completed.

The application discloses a high-temperature-resistant polyvinyl chloride adhesive tape and a preparation method thereof, and belongs to the technical field of polymer materials and adhesive products. The high-temperature-resistant polyvinyl chloride adhesive tape comprises the following raw materials in parts by weight: synergistically modified polyvinyl chloride, diphenyl phosphine oxide, chlorinated polyethylene, diisononyl phthalate, antimony trioxide, calcium stearate, zinc stearate, an antioxidant and a leveling agent; the synergistically modified polyvinyl chloride is obtained by introducing catechol structures on the surface of polyvinyl chloride through dopamine self-polymerization deposition, forming a dynamic borate ester structure with 3-aminobenzoic acid, and constructing a Si-O-Si network structure through hydrolytic condensation reaction of octa(3-aminopropyl)silsesquioxane and N-(beta-aminoethyl)-gamma-aminopropyl triethoxysilane. The dopamine-borate ester-silicone synergistic network structure is constructed, and the diphenyl phosphine oxide is introduced for function regulation, so that the heat resistance, mechanical properties and dimensional stability of the polyvinyl chloride adhesive tape are significantly improved.

This invention discloses a high- and low-temperature resistant and anti-aging building wire and its preparation method, relating to the field of wire and cable technology. The high- and low-temperature resistant and anti-aging building wire of this invention comprises: a wire core; and a modified polyvinyl chloride (PVC) insulation layer covering the wire core; wherein the modified PVC insulation layer comprises at least the following raw materials in parts by weight: 80-100 parts of PVC; 10-20 parts of hydrogenated nitrile rubber; 5-15 parts of PVC-g-polyacrylic acid graft copolymer; 10-25 parts of vinyltriethoxysilane coupling agent modified boron nitride / magnesium hydroxide composite flame retardant; 3-8 parts of linoleic acid modified polyhedral oligomeric silsesquioxane; 4-8 parts of heat stabilizer; 3-6 parts of plasticizer; 1.5-3.5 parts of lubricant; 0.5-2 parts of antioxidant; and 0.3-1.5 parts of ultraviolet absorber. The building wire prepared by this invention has wide temperature range adaptability, aging resistance, and flame-retardant and smoke-suppressing properties.

This utility model relates to the field of power cables, and more particularly to a copper-core cross-linked polyethylene insulated steel wire armored power cable for use in the petrochemical industry. It features a conductor made of high-purity oxygen-free copper wire of specific specifications, twisted in the same right-hand direction. The purity of the copper wire, the diameter of each wire, the number of strands, and the twisting pitch all meet specific requirements to ensure good conductivity and flexibility. The cross-linked polyethylene insulation layer tightly covers the conductor, with insulation thickness depending on the voltage and a moderate degree of cross-linking, providing excellent insulation and heat resistance. The steel wire armor layer is woven or wound into a double-layer structure using high-strength galvanized steel wire conforming to Q195 standards, with a coverage rate of not less than 80%, effectively enhancing mechanical protection. The inner sheath is made of polyvinyl chloride or polyethylene, and the outer sheath is made of oil-resistant, corrosion-resistant, and weather-resistant chlorosulfonated polyethylene or chlorinated polyethylene. Both layers have appropriate thicknesses; the inner sheath buffers and protects the insulation layer, while the outer sheath resists harsh environmental corrosion.

1. Purpose of Use: This is a set of automotive anti-slip mats for use in various pockets (door pockets, drink pockets, etc.) located near the driver's seat, passenger seat, and rear seats of a car. The purpose of use is to prevent small items from slipping when placed in each pocket, reduce vibration noise, protect the pocket area from scratches, and allow for easy removal for cleaning. 2. Condition of Use: The mats are molded from a thin, soft material and have a piping-like edge on the surface. The mats are designed to be easily attached and removed. 3. How to Use: Simply place the mats in each pocket to complete the installation. 4. Materials Used: Made of flexible rubber, polyvinyl chloride, and silicone rubber.

The application relates to the technical field of high polymer composite materials, and discloses a polyvinyl chloride supercritical gas co-foaming plate and a preparation process thereof. The polyvinyl chloride supercritical gas co-foaming plate comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 40-60 parts of a flame-retardant plasticizer, 5-15 parts of nano calcium carbonate, 2-5 parts of epoxy soybean oil, 3-6 parts of a calcium-zinc stabilizer, 0.2-0.5 parts of polyethylene wax and 0.2-0.6 parts of oxidized polyethylene wax. The raw materials are mixed to obtain a pressing material, then carbon dioxide gas is introduced into the pressing material, and the polyvinyl chloride supercritical gas co-foaming plate is obtained under a supercritical process. The polyvinyl chloride supercritical gas co-foaming plate prepared by the application has excellent flame-retardant performance, antibacterial performance, migration resistance and mechanical properties.

This invention discloses a low-foaming rigid polyvinyl chloride (PVC) drainage pipe and its preparation method, belonging to the field of drainage pipe technology. The rigid PVC drainage pipe of this invention, through a three-layer co-extrusion structure, possesses multiple advantages including lightweight, high strength, corrosion resistance, and aging resistance. Specifically, the inner layer contains a corrosion-resistant modifier composed of chlorinated polyethylene and acrylate copolymers, which improves the strength of the drainage pipe and the corrosion resistance of the inner wall. The core layer incorporates a foaming agent and a co-foaming agent to form a microporous structure, reducing the material density and overall weight of the pipe. The introduction of modified PVC, crosslinking agents, isocyanates, and acid anhydrides during processing forms an interpenetrating network or crosslinked structure, significantly improving the strength of the core layer material. The outer layer's preparation materials include an anti-aging agent composition consisting of hindered phenolic antioxidants, ultraviolet absorbers, and nano-inorganic anti-aging agents, effectively preventing the pipe from becoming brittle, discolored, and cracked during use, achieving a significant overall aging resistance effect.

The application discloses a kind of based on double-targeting probe mediated colorimetric / fluorescent immunochromatography kit, detection method and application, for the simultaneous detection of a variety of targets;Test strip includes sample pad, nitrocellulose membrane, absorbent pad, polyvinyl chloride backing substrate, nitrocellulose membrane is sprayed with two kinds of monoclonal antibody for recognizing different targets;The preparation of the detection probe includes the following steps: take nanoparticle solution, add monoclonal antibody solution for recognizing different targets simultaneously, after co-incubation, add bovine serum albumin, and the detection probe of nanoparticle labeled monoclonal antibody for recognizing different targets is obtained;The immunochromatography test strip is strong in specificity, convenient to use, simple to operate and low in cost, and can realize the simultaneous detection of a variety of targets.

This utility model relates to the field of polyvinyl chloride (PVC) technology and discloses a cleaning device for PVC granules. The device includes a cleaning tank with five fixed plates fixedly connected to its inner wall. Springs are fixedly connected to the outer walls of each of the five fixed plates. A cleaning rod is fixedly connected to the end of each spring away from the fixed plates. A protrusion, hemispherical in shape, is fixedly connected to the outer wall of the cleaning rod. A sealing cap is provided at the top of the cleaning tank. Under the action of the springs, the cleaning rod swings with the water flow. The swinging cleaning rod contacts and rubs against the irregularly moving PVC granules inside the cleaning tank. Combined with the increased friction from the protrusion on the outer wall of the cleaning rod, stubborn stains adhering to the PVC granules can be removed. Furthermore, the rubber cleaning rod also protects the granules, preventing scratches or breakage that could affect the product's appearance and performance.

To provide a polyvinyl chloride resin composition that effectively inhibits the generation of hydrogen chloride gas during combustion, while offering both oil resistance and electric characteristics.SOLUTION: A polyvinyl chloride resin composition comprises: a first stabilizer comprising at least one of zinc stannate and zinc borate; a second stabilizer with a specific surface area of 2.2 m2 / g or more, comprising calcium carbonate surface-treated with fatty acid; and a plasticizer comprising at least one of trimellitic acid ester and pyromellitic acid ester. Relative to 100 pts.mass of polyvinyl chloride resin, the first stabilizer is 10 pts.mass or more and 20 pts.mass or less, and the second stabilizer is 45 pts.mass or more and 65 pts.mass or less.SELECTED DRAWING: None

This utility model relates to the field of PVC pipe technology and discloses an anti-aging polyvinyl chloride (PVC) pipe, including a pipe body. A limiting ring is fixedly disposed at one end of the pipe body, and a connecting ring is fixedly disposed at the other end. A connecting sleeve is slidably fitted onto the pipe body near the limiting ring along the length of the pipe body. One end of the connecting sleeve is connected to a ring body, which is located between the limiting ring and the connecting ring of the pipe body. The connecting sleeve has an internal thread, and the connecting ring has an external thread. When two pipe bodies are spliced, the connecting sleeve is threadedly connected to the connecting ring of the spliced ​​pipe body, and the ring body abuts against the limiting ring. This utility model solves the problem in the prior art that for long pipes, splicing by rotating the pipe is difficult and affects splicing efficiency.

A polyvinyl chloride (PVC) composition is disclosed, comprising: a matrix containing a PVC resin; and a polymeric additive, the polymeric additive being a reaction product comprising one or more mono-olefinic unsaturated ester monomers, 0.1% to 10% by weight of a chain transfer agent, and up to 10% by weight of a crosslinking agent, wherein the weight percentages are based on the total amount of the reactants. A method for reducing the melting temperature of the PVC composition is also disclosed.

This invention belongs to the field of cable sheath technology, specifically relating to a polyvinyl chloride (PVC) flame-retardant cable sheath material and its preparation method. The PVC flame-retardant cable sheath material, by weight, comprises the following raw materials: 100 parts modified PVC, 25-35 parts plasticizer, 15-25 parts filler, 8-15 parts modified flame retardant, 5-10 parts stabilizer, 1-2 parts lubricant, and 0.5-1.5 parts antioxidant. This invention mainly improves the flame-retardant performance of the PVC flame-retardant cable sheath material by modifying PVC with terminal thiol hyperbranched castor oil and branched polythiols, and by modifying magnesium hydroxide with vinyl polysiloxane. This also improves its low-temperature resistance. The PVC flame-retardant cable sheath material provided by this invention can be used for extended periods in environments below -50°C, and has broad application prospects in Northeast China, Inner Mongolia, and Northwest China.