30 results about "Pvc matrix" patented technology

This invention discloses a method for preparing impact-resistant and cold-resistant polyvinyl chloride (PVC) conduit, belonging to the field of PVC material technology. In this invention, butyl rubber is complexed with dioctyl sebacate and active silica under the initiation of tert-butyl hydrogen peroxide. This complex acts as a flexible dispersed phase in the PVC matrix, effectively absorbing and dissipating impact energy and lowering the glass transition temperature of the material. This allows the conduit to maintain excellent toughness and crack resistance even at low temperatures. Furthermore, it works synergistically with impact modifiers in the system. Ethylene-vinyl acetate copolymer provides elastomer toughening, while maleic anhydride-styrene graft copolymer acts as a highly efficient compatibilizer and interfacial reinforcing agent. The compounded structure forms a toughening network, achieving toughening from molecular chain segment movement to microstructure, thus improving impact strength. Subsequent addition of reinforcing fibers of the same specification further enhances the strength of the conduit. Overall, this results in a PVC conduit with excellent strength, impact and cold resistance, and thermal properties.

The application discloses a PVC protective glove and a preparation method thereof and belongs to the technical field of PVC gloves. The method comprises the following steps: step 1: taking PVC paste resin as a base material, adding a viscosity reducer, a plasticizer, a modified filler, a liquid barium-zinc stabilizer, water-based PU glue and deionized water, stirring for 5-8 min, then sealing and aging at 45 DEG C for 1-2 h to obtain aged glue slurry; step 2: pre-treating the surface of a ceramic hand mold, spraying polytetrafluoroethylene release agent after drying, drying again, then vertically immersing in the aged glue slurry, demolding after curing and cooling, then post-treating and drying to obtain the PVC protective glove. The application realizes the uniform dispersion and strong interface combination of the modified filler in the PVC matrix by precisely controlling the surface modification structure of the filler and the amount of the filler in the formula, and effectively improves the mechanical properties and heat aging resistance of the glove.

The invention relates to a composite coating copper electrode for improving the performance of a C2 product prepared by reducing carbon dioxide through electro-catalysis and a preparation method of the composite coating copper electrode, and belongs to the technical field of catalysis and energy. The core of the invention is to provide a synergistic modification strategy for simultaneous coating of micromolecules and polymers. Specifically, benzotriazole (BTA) and polyvinyl chloride (PVC) are mixed, and the copper surface is coated with the mixture at a time to form the composite coating. Through the synergistic effect of BTA and PVC, key reaction intermediates (such as * COOH and * COCOH) can be effectively stabilized, an electronic structure is optimized, and C-C coupling is remarkably promoted. Experiments show that: Cu-BTAamp; the PVC electrode is arranged in an H-type electrolytic tank, and the Faraday efficiency of the product can be improved from 36% to 71.0 + / -5.6%. In addition, the PVC matrix can effectively package and fix BTA, and the long-term stability of a catalytic system is greatly enhanced. The method is simple, low in cost and high in universality, and a new technical approach is provided for efficient and stable reduction preparation of high-value multi-carbon fuel.

The invention provides a rare earth antibacterial mildew-proof formaldehyde-removing PVC (polyvinyl chloride) laminating material which comprises a wear-resistant layer, a PVC functional layer, a printing layer and a bonding layer from top to bottom, and the PVC functional layer is formed by calendering or blow molding a PVC mixture containing rare earth elements. According to the invention, the modified rare earth element and the functional additive are arranged in the PVC matrix, so that multiple functions of antibiosis, mildew prevention and formaldehyde removal are integrated, the functions are lasting, illumination is not depended on, and meanwhile, an existing production line is perfectly compatible.

The invention relates to the technical field of PVC cable conduits, in particular to a flame-retardant high-impact calcium carbonate master batch, a PVC cable conduit and a preparation method thereof.The preparation method of the flame-retardant high-impact calcium carbonate master batch comprises the steps that calcium carbonate, zinc borate and stearic acid are pretreated and put into a stirring machine at the same time to be mixed and modified for the first time; diluting a silane coupling agent, and adjusting the pH value to obtain a silane coupling agent solution; drying the first coated calcium carbonate to obtain second coated calcium carbonate; spraying a silane coupling agent solution on the surface of the second coating calcium carbonate by using a spraying device, carrying out second mixing modification, drying and crushing to obtain the flame-retardant high-impact calcium carbonate master batch; the calcium carbonate and the zinc borate in the flame-retardant high-impact calcium carbonate master batch have good dispersibility, so that the dispersion stability of the calcium carbonate and the zinc borate in a PVC matrix is improved, and the problem that the impact resistance and the flame retardance of the PVC cable conduit cannot be further improved due to poor dispersibility of the calcium carbonate and the zinc borate in the existing flame-retardant calcium carbonate is solved.

The application discloses a PVC film resistant to ultraviolet weathering and application of the PVC film in a car body sticker, and relates to the technical field of polymer PVC car body sticker films.The PVC film resistant to ultraviolet weathering is prepared from the following raw materials in parts by mass: 100 parts of PVC resin, 30-60 parts of plasticizer, 2-5 parts of heat stabilizer, 0.5-3 parts of ultraviolet absorber, 0.2-1.5 parts of antioxidant, 5-20 parts of filler and 1-10 parts of colorant.The application optimizes the compatibility of the ultraviolet absorber with the PVC matrix through a specific novel structure, and forms a synergistic protection system by matching the heat stabilizer and the antioxidant, so that the degradation of the PVC molecular chain caused by outdoor ultraviolet irradiation can be effectively inhibited, the aging and attenuation trend of the appearance (such as discoloration, yellowing, loss of gloss, cracking and powdering) and performance of the film in long-term outdoor use is obviously slowed down, and the ultraviolet weathering resistance effect is more durable.

This utility model relates to an extrusion molding device for moisture-proof and antibacterial PVC decorative panels, aiming to solve the technical problem that current extruders struggle to achieve uniform dispersion of nano-level moisture-proof and antibacterial materials in a PVC matrix, affecting material performance and failing to meet the processing requirements of special functional materials. The device includes: an extrusion mechanism with a hot melt box installed at one end and a molding mechanism connected to the other end via an extrusion pipe; and a dispersion mechanism located at the top of the hot melt box for uniform mixing of the moisture-proof and antibacterial materials with the PVC matrix. This utility model simultaneously injects the PVC matrix and moisture-proof and antibacterial nanomaterials into the mixing box through different flow channels, avoiding the material stratification problem caused by traditional single-inlet systems. It ensures initial mixing uniformity from the feeding source and uses a drive motor to drive a high-speed rotating drive disc to disperse and mix the simultaneously added materials, forming a nano-level monodisperse state in the PVC melt, thus improving the quality of the extrusion molding of moisture-proof and antibacterial PVC decorative panels.

The invention discloses a PVC pipeline based on phase change energy storage and a preparation method, the PVC pipeline comprises a pipeline main body, the pipeline main body comprises a PVC matrix, an energy storage filler and a thermal insulation layer, the PVC matrix comprises a matrix inner layer, a matrix outer layer and connecting ribs which are formed through extrusion, and the matrix inner layer and the matrix outer layer are connected through a plurality of connecting ribs. A plurality of cavities are formed between the base body inner layer and the base body outer layer, the adjacent cavities are separated through connecting ribs, the cavities are filled with the energy storage filler to form a phase change energy storage layer, and the heat preservation layer is fixed to the outer portion of the base body outer layer. According to the PVC pipeline, through multi-layer structural design, material modification and a special process, integration of fluid conveying and heat energy storage is achieved, the energy storage efficiency and the structural stability are improved, the system design is simplified, and the cost is reduced.

This invention discloses a PVC conduit and its preparation method, belonging to the field of polymer materials technology. By incorporating functionalized grafted elastomers, this invention significantly improves toughness while effectively inducing numerous crazing and shear bands in the matrix at low temperatures, absorbing impact energy and thus significantly improving the brittle fracture problem of PVC-U pipes under low-temperature conditions. Furthermore, the modified functional filler not only significantly improves the compatibility with PVC resin and elastomers, but also utilizes needle-like nano-hydroxyapatite combined with silicon carbide to form a stable three-dimensional network structure in the system, further hindering the intrusion of oxygen and heat, thereby delaying material aging. Due to the overlapping effect of needle-like hydroxyapatite and the rigidity point effect of silicon carbide, it significantly strengthens the PVC matrix, thereby improving the overall performance of the PVC conduit, achieving a balance between rigidity and toughness, and possessing higher application value.

The application relates to a high-flame-retardant electronic connecting wire and a preparation method thereof, and belongs to the technical field of high polymer materials. The electronic connecting wire is composed of a wire and a surface flame-retardant protective layer, wherein the components of the flame-retardant protective layer are as follows: modified phosphorus-silicon flame retardant 7.5-10 wt%, plasticizer 14-18 wt%, heat stabilizer 1.7-2.2 wt%, antioxidant 0.12-0.16 wt% and lubricant 0.9-1.3 wt%, and the rest is PVC resin; the modified phosphorus-silicon flame retardant is synthesized by synthesizing a phosphorus oxychloride intermediate 1 with a double spiro ring structure from pentaerythritol and phosphorus oxychloride, carrying out amine-ester exchange between terminal amino polydimethylsiloxane and ketone-based diethyl malonate to prepare an intermediate 2 containing terminal amino groups, and then reacting the intermediate 2 with active phosphorus oxychloride of the intermediate 1 to form a chain-shaped macromolecular phosphorus amide compound, so that in-situ toughening, migration inhibition and carbon net flame retardation are simultaneously realized in the PVC matrix.

This invention relates to the field of PVC recycled plastics technology, and discloses a PVC recycled polyvinyl chloride plastic and its preparation method, including a recycled PVC matrix phase, a gradient interface layer, and a woven carbon fiber reinforcement layer. The invention forms a dynamic cross-linking network inside the recycled PVC matrix through a thermally reversible covalent cross-linking agent, which effectively compensates for the strength loss caused by molecular chain breakage in the recycled PVC. At the same time, a tensile rheological plasticizing device is used to make the particulate filler fiberized in situ, forming a micro-fiber reinforcement network in the matrix. The macro-woven carbon fiber layer and the micro-in situ fiberized network constitute a "double network reinforcement" structure.

The present application relates to a kind of PVC conveying belt surface layer material with high wear resistance and its preparation method, the component of the surface layer material includes by weight parts: PVC paste resin: 100 parts;SBR emulsion (by solid content): 5-15 parts;BR emulsion (by solid content): 3-10 parts;Maleic anhydride grafting polyethylene: 0.3-1 part.The present application improves the wear resistance and dynamic friction coefficient of surface layer material by the synergistic effect of SBR emulsion and BR emulsion, gives material good elasticity and buffering capacity, and possibly improves the running stability of conveying belt and the flexibility at low temperature, reduces the risk of low temperature brittle fracture.And by means of maleic anhydride grafting polyethylene compatibilizer improves interface bonding, enhances the interface bonding force between PVC matrix and rubber dispersed phase, makes the blending system more stable, not easy to phase separation and interface peeling, so that surface layer material can more effectively resist the friction and wear of material, thereby significantly prolong the service life of conveying belt.

This invention belongs to the technical field of PVC wall panel materials, specifically an antibacterial and mildew-resistant PVC wall panel material and its preparation method, comprising the following components: polyvinyl chloride resin, an antibacterial and mildew-resistant slow-release complex, a calcium-magnesium composite heat stabilizer, an environmentally friendly plasticizer, an acrylate processing aid, a composite lubricant, and fillers. This invention utilizes a composite coating system constructed with a rhamnose lipase-modified nano-zinc oxide amphiphilic coating layer as the inner layer and a phytic acid-modified β-cyclodextrin and trisodium citrate synergistic adsorption layer as the outer layer. This system encapsulates nano-zinc oxide within the PVC matrix, delaying the risk of zinc ion leaching from landfills and inhibiting the activity of key extracellular enzymes in the soil. Simultaneously, the heat stabilizer, plasticizer, and processing components help maintain the matrix's density, indirectly enhancing physical barrier properties and achieving low ecological impact throughout the wall panel's life cycle.

The invention belongs to the technical field of functional polymer materials, and particularly relates to an efficient antibacterial PVC coiled material with a controllable nano-silver structure and a preparation method of the efficient antibacterial PVC coiled material. According to the coiled material, a confinement reduction and coupling synergistic strategy is adopted, sphere-like nano-silver with the particle size of 10-50 nm is constructed, the surface of the sphere-like nano-silver is directionally modified through a multifunctional silane coupling agent, a compact organic interface layer is formed, uniform dispersion and stable combination of particles in a PVC matrix are achieved, and therefore the slow release control capacity of silver ions is effectively improved. Based on the structural design, the prepared coiled material shows excellent elongation at break and thermal aging stability while endowed with efficient antibacterial durability, the problem of mechanical or thermal property weakening caused by traditional antibacterial modification is avoided, and a multifunctional integrated system with the antibacterial property, the mechanical property and the thermal stability cooperatively improved is constructed. And the preparation process is simple and convenient, has wide applicability, and is suitable for preparing antibacterial and durable flexible functional materials in public buildings, medical health and high-requirement environments.

The invention discloses a preparation process of a PVC (polyvinyl chloride) base film for a protective film. Comprising the following steps: step 1, stirring polyvinyl chloride, modified nitrile rubber, a light stabilizer, a lubricant, a calcium-zinc stabilizer, epoxidized soybean oil and an inorganic filler at 30-40 DEG C for 20-30 minutes, then raising the temperature to 60-70 DEG C, adding dioctyl sebacate in batches, and stirring for 10-20 minutes to obtain a mixed base material; and 2, transferring the mixed base material into a double-screw extruder for granulation, and then carrying out film pressing molding by using a film pressing machine to obtain a finished product. The PVC protective film has the beneficial effects that through the synergistic effect of the modified nitrile rubber and the PVC matrix, the comprehensive performance of the protective film is remarkably improved, and the protective film has excellent mechanical strength, flame retardance and oxidation resistance.

The invention discloses a PVC composite material based on waste limestone ore as well as a preparation method and application of the PVC composite material. The composite material comprises the following components in parts by weight: 200-300 parts of modified calcium powder, 90-110 parts of PVC (Polyvinyl Chloride) resin, 5-15 parts of a heat stabilizer, 0.2-1 part of a lubricant and 10-20 parts of a modifier compounded by CPE (Chlorinated Polyethylene) and ACR (Acrylic Acid), wherein the modified calcium powder is prepared by carrying out dry surface coating modification on waste limestone ore. The preparation method comprises the steps of dry surface modification and five-zone temperature control extrusion. Through a specific dry modification process, the dispersity and interfacial compatibility of the waste ore powder in a PVC matrix are effectively improved, so that the obtained material has excellent rigidity, thermal deformation resistance, creep resistance and dimensional stability while realizing high filling, is especially suitable for a'sight blind area 'extrusion layer of a stone-plastic floor or a profile, and has a wide application prospect. And an effective way is provided for high-value-added resource utilization of the limestone solid waste.

The invention relates to the technical field of printing ink coatings, in particular to a high-end printing ink coating for metal printing based on polyvinyl chloride resin and a preparation method of the high-end printing ink coating. The composite material is composed of the following raw materials in parts by weight: 28-42 parts of a core-shell PVC matrix; 12 to 28 parts of double-shell metal powder; 8 to 16 parts of a cage type auxiliary agent; 22 to 38 parts of a reaction solvent; 1.2 to 3.5 parts of a rheological additive; and 2.5-6 parts of an anchoring auxiliary agent. According to the high-end printing ink coating for metal printing based on the polyvinyl chloride resin, through molecular structure design and component synergistic modification, a core-shell structure polyvinyl chloride film-forming substrate is adopted, and the rigidity and flexibility of a coating are synchronously achieved; multiple effects of blocking, discoloration prevention, matrix compatibility, sedimentation prevention, interface anchoring and adhesive force improvement are achieved through the metal effect pigment of the double-shell structure, and the specular glossiness and the storage stability are greatly improved; and a monomolecular multifunctional cage type auxiliary agent is adopted, so that the compatibility defect of compounding of multiple auxiliary agents is avoided, and the synergistic interaction of light stability, heat stability, leveling and anchoring is synchronously realized.

This invention discloses a high-strength PVC sheet and its preparation process, belonging to the technical field of PVC sheet technology. The high-strength PVC sheet of this invention comprises the following raw materials: PVC resin, composite reinforcing modifier, toughening agent, stabilizer, lubricant, processing aid, filler, and coupling agent; wherein the composite reinforcing modifier is a mixture of acicular wollastonite powder and PMMA-coated nano-calcium carbonate, with a mass ratio of 2:1. This invention, by employing a composite reinforcing modifier composed of acicular wollastonite and PMMA-coated nano-calcium carbonate, allows the acicular structure to form a skeletal reinforcing network within the matrix, while the coating layer improves the interfacial bonding force between the inorganic particles and the PVC matrix, significantly increasing the flexural and tensile strength of the sheet. This invention, through a toughening system combining CPE and MBS, effectively absorbs impact energy without significantly reducing material rigidity, achieving a balance between rigidity and toughness.

The utility model provides a scratch-resistant PVC (Polyvinyl Chloride) coated skin for a vehicle, which belongs to the technical field of PVC coated skins and comprises an upper PVC substrate layer and a lower PVC substrate layer, and the upper PVC substrate layer is positioned below the lower PVC substrate layer; the ABS resin layer is arranged on the top of the upper PVC base body layer; the elastic sleeve and the elastic brace are arranged between the upper PVC base body layer and the lower PVC base body layer, and the elastic brace is located on the inner side of the elastic sleeve. The limiting holes are respectively formed in the tops of the upper PVC base body layer and the lower PVC base body layer in a penetrating manner; according to the utility model, through the elastic braces which are obliquely arranged in a crossed manner in a plurality of directions, resilience buffering can be provided when the upper PVC base body layer and the lower PVC base body layer are subjected to shearing force, and through the stretching deformation of the elastic braces in the oblique scraping force direction, the resilience force of the elastic braces is utilized to buffer the scraping force; and the staggered parts of the upper PVC base body layer and the lower PVC base body layer are pulled back and reset, so that the scraping force directly borne by the PVC coating skin is reduced, and the damage caused by scraping is reduced.

The invention provides a light high-rigidity floor and a preparation method of the light high-rigidity floor. Comprising the following raw materials: 60 to 70 parts of PVC resin, 6 to 10 parts of phenolic resin particles, 10 to 12 parts of tetraethoxysilane, 2 to 5 parts of n-butylamine, 0.3 to 0.8 part of maleic anhydride, 6 to 8 parts of silane modified hollow glass beads, 0.1 to 0.5 part of a stabilizer, 1 to 3 parts of a lubricant, 0.5 to 1 part of dicyclopentadiene dicarboxylate and 0.3 to 0.8 part of a silane coupling agent. According to the invention, through triple design of a thermally reversible crosslinked PVC matrix, a porous SiOS network generated in situ by TEOS and a chemically bonded lightweight filler, the composite material is lighter and stronger.

The invention discloses a light-reflecting and heat-insulating PVC / TPU composite water supply pipe which comprises a dynamic temperature control layer, a phase change energy storage layer and a reinforced structure layer from outside to inside, the dynamic temperature control layer adopts a nano-modified TPU matrix, and a temperature-sensitive liquid crystal polymer is arranged in the TPU matrix; the phase change energy storage layer comprises a PVC base body, and energy storage microcapsules are arranged in the PVC base body. The reinforced structure layer comprises a PVC (Polyvinyl Chloride) matrix containing nano graphene. By arranging the dynamic temperature control layer, when the temperature rises, the device is rapidly switched to a high-reflection state, solar radiation heat is effectively blocked, and when the temperature falls back, the device is recovered to a conventional state; by arranging the phase change energy storage layer, redundant heat can be absorbed and stored in the daytime and is slowly released at night or when the temperature is low, and the temperature fluctuation of the pipe body is slowed down; through cooperative work of the two layers, self-adaptive adjustment and buffering of the temperature of the composite water supply pipe are achieved, and the problem of water temperature rise or heat loss caused by drastic change of the external temperature is remarkably reduced.

The invention relates to a high-flame-retardant anti-dripping flame-retardant cable and a preparation method thereof, and belongs to the technical field of special cables. The cable comprises an inner wire and an outer protective layer, and the outer protective layer comprises the following components: 100 parts of PVC resin, 37-42 parts of a plasticizer, 1.5-2.2 parts of a lubricant, 1.8-2.3 parts of a heat stabilizer, 9-14 parts of a modified cellulose flame retardant, 20-30 parts of an aluminum hydroxide flame retardant and 8-12 parts of a filler; the modified cellulose flame retardant can construct a multi-layer flame-retardant and anti-dripping mechanism in a PVC matrix, the problems that a traditional organic flame retardant is prone to migration, the adding amount of an inorganic flame retardant is high, and a fiber material is prone to embrittlement are solved, phosphorus and silicon elements are stably anchored to the surfaces of fibers in a chemical bonding mode, and the flame-retardant and anti-dripping functions are achieved. The problems of poor interfacial compatibility and performance degradation are avoided, the synergistic improvement of flame retardance, molten drop resistance and mechanical properties is realized, and the industrial application prospect is remarkable.

The utility model discloses a wear-resistant PVC pipe which comprises a pipeline structure, a butt joint ring structure, a fixing ring structure and a connecting rod, the surface of the pipeline structure is movably sleeved with the butt joint ring structure, the butt joint ring structure is movably provided with the connecting rod in a penetrating mode, and the surface of the connecting rod is movably sleeved with the fixing ring structure. According to the wear-resistant PVC pipe, the structural strength is improved by arranging the pipeline structure, the service life is prolonged, the high wear-resistant inner layer is made of a high wear-resistant modified PVC material, and nano aluminum oxide and silicon carbide particles are added, so that the surface hardness and wear resistance are improved; the high-strength pipeline body is a high-strength PVC base body, a glass fiber reinforcing material is added, the tensile strength and impact resistance of the pipeline are improved, the anti-aging outer layer is made of an anti-aging PVC material, an ultraviolet light absorber and an antioxidant are added, the weather resistance is improved, the service life is prolonged, the spiral reinforcing ribs are arranged on the outer wall of the pipeline, the rigidity of the pipeline is improved, and deformation is prevented.

The application belongs to the technical field of high polymer materials, and particularly relates to a styrene-acrylonitrile-maleic anhydride copolymer masterbatch, a preparation method thereof and application of the masterbatch in modified polyvinyl chloride. The styrene-acrylonitrile-maleic anhydride copolymer masterbatch is obtained by melt mixing of a styrene-acrylonitrile-maleic anhydride copolymer, spherical graphite powder and silicon carbide fiber. The spherical graphite powder and the silicon carbide fiber can form a 0-1 type three-dimensional space skeleton structure, which is beneficial to stabilizing the PVC matrix when heated. The maleic anhydride in the styrene-acrylonitrile-maleic anhydride copolymer has a strong interaction with the spherical graphite powder and the silicon carbide fiber, which can improve the compatibility of the spherical graphite powder and the silicon carbide fiber in the PVC system. The silicon carbide fiber can hinder the movement of the PVC chain segment, thereby improving the glass transition temperature of the PVC chain segment. The three components have a synergistic effect, which effectively improves the heat resistance and thermal stability of the polyvinyl chloride.

The invention discloses an anti-aging low-temperature-resistant PVC (polyvinyl chloride) foaming material and a preparation method thereof. In the invention, due to the existence of the cold-resistant plasticizer, the rubber phase of the chlorinated polyethylene is more easily dispersed into the PVC matrix, all the components can be uniformly fused without additionally prolonging the mixing time or increasing the temperature during high-speed mixing, the problem of material caking or layering is avoided, and the operation of the mixing step is simplified. The synergistic effect improves the flowability and stability of melt, materials can pass through a machine barrel more smoothly during twin-screw extrusion granulation, degradation or poor plasticization caused by processing temperature fluctuation due to low-temperature performance requirements is avoided, the frequency of equipment adjustment is reduced, the granulation process is more efficient and stable, and the product quality is improved. The linkage cooperation of chlorinated polyethylene and the cold-resistant plasticizer also improves the links of foam molding and subsequent treatment, so that the product is not easy to age or attenuate in performance in subsequent storage and use, the rework cost after production is reduced, and the economical efficiency and reliability of the whole preparation process are improved.

The invention discloses an antibacterial PVC film and a preparation method thereof, and belongs to the technical field of polymer composite materials. The film is mainly prepared from the following raw materials in parts by weight: 100 parts of PVC resin, 1-5 parts of an antibacterial composition, 30-50 parts of a plasticizer, 2-4 parts of a heat stabilizer, 5-20 parts of a filler and 0.5-2 parts of a lubricant. The core of the antibacterial composition is that the antibacterial composition comprises talcum powder microcapsules and modified polyethylene glycol, and the talcum powder microcapsules and the modified polyethylene glycol interact in a PVC matrix through a specific processing technology to form a stable three-dimensional network structure. The structure not only can effectively fix antibacterial components and realize a lasting and efficient antibacterial effect, but also can synergistically enhance the mechanical properties of the film. The invention further provides a corresponding preparation method, the process is good in compatibility with an existing production line, and large-scale production is easy. The prepared film is particularly suitable for the field of medical packaging and protective articles with strict sanitary requirements.

The invention relates to the technical field of anti-static PVC material research and development, and discloses an anti-static PVC calendering film and a preparation method thereof.The preparation method specifically comprises the steps that a secondary amine quaternized straight-chain type organosilicon compound and a secondary amine quaternized cage type organosilicon compound are grafted to a PVC molecular chain through a secondary amine-chlorine nucleophilic substitution reaction, and quaternized organosilicon modified PVC is prepared; 1, 3-propane sultone is used for carrying out functional modification treatment on the conductive carbon black filler, and sulfonated conductive carbon black filler is prepared; in the presence of a heat stabilizer, quaternized organic silicon modified PVC and sulfonated conductive carbon black filler are mixed, ionic bonding type interface compatibility of the conductive carbon black filler and a PVC matrix is realized through electrostatic adsorption, PVC resin is compounded, and the PVC calendered film is prepared through a calendering molding process. The characteristics of toughness balance are shown.

This invention relates to the field of thin film materials technology and discloses an antibacterial polyvinyl chloride (PVC) film and its preparation method. The film comprises the following raw materials: polyvinyl chloride resin, plasticizer, epoxidized soybean oil, stabilizer, lubricant, and organic-inorganic composite antibacterial filler. The organic-inorganic composite antibacterial filler is prepared by a substitution reaction between a long-chain vanillin Schiff base type secondary amine modifier and a halogen-modified nano-zinc oxide. The long-chain vanillin Schiff base type secondary amine modifier modifies the surface of the halogen-modified nano-zinc oxide, and its long carbon chain can diffuse into the PVC matrix. The compatibility between the nano-zinc oxide and the PVC matrix is ​​improved, and the nano-zinc oxide has good dispersion, playing a role in dispersion reinforcement. This results in the prepared PVC film having excellent mechanical properties and antibacterial properties, meeting market demands and showing broad application prospects.

This invention relates to the field of polyvinyl chloride (PVC) insulation material preparation technology, specifically to a PVC insulation material for ultra-scratch-resistant cables and its preparation process. By weight, it comprises 100 parts PVC resin, 10-15 parts chlorinated polyethylene, 5-7 parts calcium-zinc composite stabilizer, 30-45 parts plasticizer, 0.5-1.5 parts lubricant, 0.5-0.7 parts antioxidant, 10-15 parts flame retardant, 0.5-0.8 parts colorant, 3-8 parts wear-resistant fiber, and 5-15 parts composite repair filler. The composite repair filler is a composite structure obtained by coating a repair agent onto a nano-container. The wear-resistant fiber added to the PVC matrix forms a skeleton structure. During friction, the fiber skeleton initially bears wear, and the nano-container releases the repair agent when needed, filling and repairing micro-cracks, achieving high initial wear resistance and subsequent repairability, thus extending the service life of the cable under high-frequency, high-intensity scratching conditions.

The application relates to a preparation method of high-temperature-resistant and impact-resistant PVC insulating material and belongs to the technical field of composite materials; a polyurethane flame-retardant chain extender with a pyridine ring structure, a phosphate structure and two hydroxyl structures in the structure is prepared, the polyurethane is modified by using the polyurethane flame-retardant chain extender, a flame-retardant polyurethane segment with the phosphate structure and the pyridine ring structure in the structure is prepared, and finally the flame-retardant polyurethane segment is grafted on the surface of glass fiber to obtain modified glass fiber. The modified glass fiber of the application is close to random distribution in the PVC matrix, and shows isotropy, so that the impact from different directions can be effectively resisted. In addition, the modified glass fiber of the application can effectively improve the rigidity of PVC and inhibit the thermal slip of molecular chains at the interface, so that the high-temperature resistance of the composite material can also be effectively improved.