79 results about "Pvc matrix" patented technology

The invention relates to a method for preparing hydrophobic nanometer hydrotalcite. The hydrophobic nanometer hydrotalcite with Mg<2+>/Al<3+> of which the molar ratio is 2-3:1 is prepared by adopting a coprecipitation method by adding eunatrol, and leached by using methylbenzene under the action of a phase transfer agent. The hydrophobic nanometer hydrotalcite can be mixed with calcium stearate and zinc stearate and then is added with a lubricating agent, a surfaction agent and an auxiliary stabilizing agent to prepare a composite heat stabilizing agent for hydrophobic nanometer hydrotalcite base PVC. The hydrophobic nanometer hydrotalcite prepared by the method has better hydrophobicity and good compatibility with PVC matrixes, can be used as a stabilizing agent for processing plastics such as PVC, and the like and has the characteristics of no easy separation and good stabilizing effect. The addition of the hydrophobic nanometer hydrotalcite can reduce the balancing torque, improve the processing performance and reduce the cost.

The invention discloses a preparation method and application of a compound PVC (polyvinyl chloride) antistatic agent. The preparation method of the antistatic agent comprises the following two key steps: 1. preparation of fatty acid monoglyceride: reacting esterification raw materials glycerol and fatty acid at 110-160 DEG C under the action of a catalyst for 1-6 hours; and 2. mixing and compounding the fatty acid monoglyceride and other materials to obtain the finished antistatic agent product. The antistatic agent is compounded from the following materials in percentage by weight: 50-80% of fatty acid monoglyceride, 10-30% of polyoxyethylene fatty acid ester and 10-30% of inorganic metal salt. The PVC antistatic agent is compounded from the two nonionic surfactants and inorganic metal salt. Under the synergic antistatic actions of the three components, the PVC antistatic agent has the characteristics of favorable heat resistance, favorable compatibility with the PVC matrix, lower cost, favorable antistatic property and the like, and has significant application value in PVC antistatic materials.

The invention provides a polyvinyl chloride/layered double hydroxide nano-composite material and a preparation method thereof. The composite material is compounded by polyvinyl chloride and layered hydroxide with the molecular formula of [Mg1-xAlx (OH) 2] question mark R. The preparation method of the material comprises the following steps: 1) the water solution of magnesium nitrate and aluminum nitrate is reacted with the water solution of organic salt and strong base; the temperature is then raised to 70 to 80 DEG C for constant temperature reaction, and layered double hydroxide with modified surface is obtained; and 2) the layered double hydroxide with modified surface reacts with polyvinyl chloride and the product is obtained. The preparation method of the invention has simple process and obvious modification effect; the polyvinyl chloride/layered double hydroxide nano-composite material LDHs obtained by using the method can scatter in a PVC matrix by nanometer scale with obviously improved thermal stability without poison and heavy metals such as lead, etc., environment-friendly, can be directly used for producing various PVC products without adding heat stabilizer and has high application value.

The invention discloses environment-friendly wallpaper polystyrene foam. The environment-friendly wallpaper polystyrene foam comprises the following main raw materials in percentage: 32-60% of PVC matrix resin, 15-30% of a plasticizer, 1-10% of a foaming agent, 2-10% of a water-soluble solvent, 2-10% of a stable accelerant, 2-10% of a surfactant and 0.2-1% of a coupling agent. Correspondingly, the invention also discloses a method for preparing the environment-friendly wallpaper polystyrene foam and wallpaper produced by using the environment-friendly wallpaper polystyrene foam. According to the environment-friendly wallpaper polystyrene foam, the water-soluble wallpaper polystyrene foam has the characteristics of high foaming height, excellent adhesive force and elasticity, environmental friendliness, energy conservation, high production efficiency and the like and is easy to wash.

The invention relates to the field of conductive composite material processes and particularly discloses a method for preparing a PVC conductive composite material through a mechanical milling method. The method comprises the following steps: putting the graphite in the absolute ethyl alcohol containing a coupling agent, stirring under a constant temperature till the graphite is dispersed in the ethyl alcohol, performing extraction filtration, baking the graphite to obtain the modified graphite, putting the modified graphite and the PVC at a ratio of (15-20%): (80-85%) into a circulating water type high-energy ball mill, performing mechanical milling for 0.5-2.5 hours to obtain the mixed materials, filling the mixed materials in a mould of a press vulcanizer, performing high temperature heat pressing and demoulding to obtain the PVC conductive composite material. By adopting the preparation method, the interface difference between the graphite and the PVC is eliminated so that the graphite is uniformly dispersed in the PVC matrix; a dense conductive network is formed inside the composite material so that the conductive performance of the composite material is obviously reinforced; and besides the method is high in reaction efficiency, energy-saving, free of industrial waste and low in production cost.

The invention relates to a low-temperature toughened PVC drainage pipe material, a preparation method and application thereof. The PVC drainage pipe material is prepared according to the following preparation method: taking nanometer silicon dioxide and acrylonitrile-butadiene-styrene copolymer as raw materials to prepare a compound modified particle with a core-shell structure through an emulsion polymerization method; and then blending the compound modified particle with PVC through melt, so as to prepare a ternary nanometer compound material. By selecting a specific nanometer particle to organically combine with an elastomer, the core-shell structural compound modified particle taking nanometer silicon dioxide as a core and ABS as a shell is formed, and then the compound modified particle and PVC resin are subjected to melt blending, so that the compound modified particles are well dispersed in PVC matrix and give play to toughening reinforcing modification effect on PVC.

The invention provides a PVC plastic floor comprising a substrate layer, a middle layer, a decoration layer, a wearing layer and a paint layer jointed in sequence; either one or both of the substrate layer and the middle layer comprise one layer of PVC matrix and filling particles scattering in the PVC matrix; the filling particles comprise SiO2, Al2O3, CaCO3, and NaC1; the invention also comprises a PVC plastic floor preparation method; the PVC plastic floor is more stable than a conventional normal PVC plastic floor.

The invention relates to a high-toughness PVC drainage-pipe material, and a preparation method and application thereof. The PVC drainage-pipe material is prepared according to the following preparation method: taking nanometer calcium carbonate and chlorinated polyethylene as raw materials to prepare a compound modified particle with a core-shell structure through an emulsion polymerization method; and blending the compound modified particle with PVC through melting, so as to prepare a ternary nanometer compound material. By selecting a specific nanometer particle to organically combine with an elastomer, the core-shell structural compound modified particle taking nanometer calcium carbonate as a core and CPE as a shell, then the compound modified particle and PVC resin are subjected to melt blending, so that the compound modified particles are well dispersed in PVC matrix, and give play to toughening reinforcing modification effect on PVC.

The invention provides a surface treatment method for novel crystal whiskers applied to PVC. The calcium carbonate crystal whiskers and a coupling agent with a double bond react to obtain modified crystal whiskers with the double bond on the surface, organic monomers are grafted on the surface through in-situ emulsion polymerization, and therefore compatibility between the whiskers and a PVC matrix is improved. The compatibility between the calcium carbonate whiskers and PVC is improved, and after PVC is filled with the modified crystal whiskers, mechanical property and thermal stability of the matrix can be improved.

The invention relates to a low-temperature toughened PVC drainage pipe material, a preparation method and application thereof. The PVC drainage pipe material is prepared according to the following preparation method: taking montmorillonite and methyl methacrylate-butadiene-styrene copolymer as raw materials to prepare a compound modified particle with a core-shell structure through an emulsion polymerization method; and then blending the compound modified particle with PVC through melt, so as to prepare a ternary nanometer compound material. By selecting a specific nanometer particle to organically combine with an elastomer, the core-shell structural compound modified particle taking montmorillonite as a core and MBS as a shell is formed, and then the compound modified particle and PVC resin are subjected to melt blending, so that the compound modified particles are well dispersed in PVC matrix and give play to toughening reinforcing modification effect on PVC.

The invention discloses a novel heat-resistant PVC plastic. The novel heat-resistant PVC plastic comprises the following components in parts by weight: 50-60 parts of a PVC matrix, 40-45 parts of ternary polymerized resin, 15-20 parts of MMA modified ABS resin, 5-10 parts of EnBACO grafted maleic anhydride, 1-5 parts of 9nm calcium carbonate, 5 parts of styrene and 10 parts of acrylate. The ternary polymerized resin is MMA-St-ChMI, and the ratio of the MMA-St-ChMI is 25: 35: 40. After being treated via a titanate coupling agent, nano calcium carbonate is added in the PVC matrix for blending and filling. The EnBACO grafted maleic anhydride is a compatibilizer. The novel heat-resistant PVC plastic has the advantages of good heat resistance and long service life.

A thermoplastic alloy of a melt processible crosslinked olefin thermoplastic elastomer dispersed in a PVC matrix. Improved compatibility of the alloyed components may be achieved through the use of a chlorinated olefin thermoplastic elastomer. The thermoplastic alloy is characterized by lessened mechanical deterioration from heat aging, and improved performance under low temperature conditions.

The invention relates to high-color-stability PVC (polyvinyl chloride) resin. A color master batch which is 2-5% of a matrix resin weight is added to PVC matrix resin. According to the resin providedby the invention, through adding the specially prepared color master batch, a color of the resin added with the color master batch has good temperature resistance.

The invention discloses a high-impact-resistance PVC tube. The high-impact-resistance PVC tube is prepared from, by weight, 100 parts of PVC resin, 5-10 parts of titanium dioxide, 0.1-0.3 part of CPE and 0.1-0.3 part of ACM. Compared with the prior art, according to the high-impact-resistance PVC tube, titanium dioxide and ACM are added in a PVC matrix, the tensile strength and impact-resistance strength can be improved, and the high-temperature stability is improved.

The invention discloses a special high-glossiness modified master batch for a transparent PVC (Polyvinyl Chloride) hard product and belongs to the technical field of high molecular materials. The special high-glossiness modified master batch for the transparent PVC hard product, provided by the invention, is prepared from pre-treated PVC matrix resin, a stabilizing agent, a plasticizer, a lubricant, a de-foaming agent, a filler and modified graphene oxide, wherein the pre-treated PVC matrix resin is obtained by mixing and swelling PVC resin and a solvent, carrying out heat treatment and ageingand then freezing and crushing; the modified graphene oxide is prepared by heating graphene oxide, octadecylamine and trichloromethane and stirring and reacting; in a preparation process, the pre-treated PVC matrix resin, the stabilizing agent, the plasticizer, the lubricant, the de-foaming agent and the filler are mixed and then the modified graphene oxide is added; after the components are continually and uniformly mixed, extrusion and granulation, cooling and packaging are carried out to obtain the special high-glossiness modified master batch for the transparent PVC hard product. The special high-glossiness modified master batch for the transparent PVC hard product, disclosed by the invention, has excellent transparency, mechanical properties and light stability.

The invention relates to a preparation method of an antistatic PVC composite material. The method comprises the following steps: conveying a precursor into a tubular resistance furnace for high-temperature activation to obtain a catalyst, pulverizing and modifying the catalyst, conveying the catalyst into the tubular resistance furnace, and introducing a carbon source under a hydrogen-nitrogen atmosphere condition to grow graphene to obtain graphene-calcium oxide composite powder; digesting and aging the graphene-calcium oxide compound powder and water in a digestion kettle according to a preset mass ratio, conveying the graphene-calcium hydroxide compound powder into a carbonization kettle, introducing lime kiln gas for carbonization to obtain graphene-calcium carbonate compound powder; and mixing the graphene-calcium carbonate compound powder with PVC, and carrying out melt blending through a twin-screw extruder to obtain the antistatic PVC composite material. According to the preparation method provided by the invention, the problems of agglomeration of graphene and interfacial compatibility and interaction between graphene and a PVC matrix are effectively solved, and the resistivity of the PVC composite material can be regulated and controlled.

The invention belongs to the technical field of high polymer materials, and particularly relates to an MXene-graphene-PVC composite material and a preparation method thereof. The MXene-graphene-PVC composite material is prepared from the following raw materials in parts by weight: 100 parts of PVC resin, 1 to 5 parts of a heat stabilizer, 3 to 15 parts of chlorinated polyethylene, 1 to 4 parts of an ACR processing aid, 1 to 20 parts of nano calcium carbonate, 0.3 to 2 parts of a lubricant, 1 to 5 parts of MXene-graphene and 0.1 to 0.5 part of an antioxidant. The MXene-graphene is prepared by the following steps: firstly, modifying graphene oxide by using amino molecules, then intercalating MXene into the graphene oxide, and finally reducing to obtain MXene-graphene. According to the invention, electrostatic repulsion among graphene sheet layers is increased, and aggregation of graphene in a PVC matrix is effectively reduced. Meanwhile, the dispersity, the conductivity and the toughness of the PVC composite material are greatly improved.

The present invention provides a nitrogen-doped graphene/PVC composite material and a preparation method thereof. By improving the preparation method of graphene, the graphene is subjected to multi-component doping to introduce functional group-modified graphene, van der Waals force between the graphene sheets is weakened, graphene agglomeration is reduced or eliminated, the dispersion degree of graphene in a PVC matrix is increased, and the interface property of the graphene/PVC composite material is improved. At the same time, the graphene/PVC composite material is prepared by improving a solid-phase shearing and milling method, and the secondary compositing of graphene and PVC is combined to improve the comprehensive performance of the composite material.

The invention relates to the field of composite plastic materials, in particular to an inorganic nanoparticle modified PVC composite material craft shoe sole and a preparation method thereof. The inorganic nanoparticle modified PVC composite material craft shoe sole comprises the following raw materials in parts by weight: 120-150 parts of PVC resin, 10-15 parts of composite modified nanoparticles, 8-12 parts of chlorinated polyethylene, 1-3 parts of calcium stearate, 4-8 parts of a plasticizer and 2-5 parts of a stabilizer. According to the inorganic nanoparticle modified PVC composite material process shoe sole disclosed by the invention, nano TiO2, nano ZnO and nano SiO2 are coated with a polymer to form composite modified nanoparticles taking nano TiO2, nano ZnO and nano SiO2 as an inner core, polybutyl acrylate as an outer core and polymethyl methacrylate as a shell, and the composite modified nanoparticles are then blended with a PVC matrix, such that the impact resistance and the tensile resistance of the PVC material are effectively improved, the softening temperature of the PVC material is increased, and the application range of the PVC material is expanded.

The invention discloses a method for preparing sunshine fabric fiber with high flame resistance and high mechanical strength. The sunshine fabric fiber comprises a core layer and a skin layer, whereinthe core layer is prepared from polyester fiber; the skin layer is prepared from a PVC (Polyvinyl Chloride) composite material; a weight ratio of the PVC composite material to the polyester fiber is(60 to 80):(40 to 20). The method comprises two steps of PVC composite material pelleting and polyester fiber coating, wherein the step of the PVC composite material pelleting comprises the steps: stirring PVC matrix resin, a phosphorus-nitrogen flame retardant, an ethylene-vinyl acetate copolymer and an optional additive according to a certain proportion, thus obtaining a PVC composite material mixture in uniform dispersion; extruding the PVC composite material mixture by using a double-screw extruder, and pelleting after cooling by a water tank, thus obtaining master batches of the PVC composite material. According to the preparation method disclosed by the invention, a synergistic interaction principle of the phosphorus-nitrogen flame retardant and the ethylene-vinyl acetate copolymer is utilized, and the obtained sunshine fabric fiber not only has good flame resistance, but also has better mechanical performance; in addition, the antibacterial performance, the anti-UV (Ultraviolet)performance and the color fastness performance can also meet demands of a market, sunshine fabric can be prepared and is suitable for building shading, and an application prospect is wide.

The invention discloses a PVC antistatic adhesive tape and a preparation method thereof, and the PVC antistatic adhesive tape comprises the following raw materials by weight: 110-130 parts of PVC, 2-3parts of sucrose acetate isobutyrate, 20-30 parts of antistatic emulsion, 0.1-0.2 part of lead sulfate tribasic, 1-2 parts of calcium stearate, 4-5 parts of chlorinated paraffin, 2-3 parts of divinylbenzene and 10-12 parts of calcium carbonate. The PVC antistatic adhesive tape adopts the divinylbenzene and the calcium carbonate as a filler, the compatibility of the filler in a PVC matrix can be improved by crosslinking modification, the toughness and mechanical strength of the PVC can be improved, and the PVC antistatic adhesive tape has strong electrostatic properties, high safety and comprehensive performance.