CN111534027A - Modified PVC material with impact resistance - Google Patents
Modified PVC material with impact resistance Download PDFInfo
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- CN111534027A CN111534027A CN202010551688.8A CN202010551688A CN111534027A CN 111534027 A CN111534027 A CN 111534027A CN 202010551688 A CN202010551688 A CN 202010551688A CN 111534027 A CN111534027 A CN 111534027A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a modified PVC material with impact resistance, which is mainly used in the field of building roof tiles and comprises the following components in parts by weight: 80-100 parts of polyvinyl chloride, 8-15 parts of nano calcium carbonate, 0.5-5 parts of plasticizer, 10-15 parts of impact modifier and 10-15 parts of elastic modifier; 3-5 parts of composite stabilizer and 3-5 parts of silicon carbide; the plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8-10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3. The invention has the effect of obviously improving the impact resistance of the PVC material and expands the application range of the PVC material.
Description
Technical Field
The invention relates to the technical field of PVC modification preparation, in particular to a modified PVC material with impact resistance.
Background
Polyvinyl chloride (PVC) is one of the earliest common thermoplastic plastics which are industrialized and widely used, and has the advantages of light weight, high strength, insulation, flame retardance, corrosion resistance, excellent comprehensive performance, low price, wide raw material sources and the like; however, the following disadvantages also exist:
1. the PVC material has poor toughness, is easy to crack easily when impacted, and therefore cannot be used as a structural material, in addition, the brittleness of the PVC is greatly influenced by temperature, the lower limit of the use of general PVC products is-15 ℃, and the lower limit of the use of soft PVC is-30 ℃;
2. poor thermal stability, which begins to decompose HCl at 100 ℃ and more rapidly above 150 ℃, while the melting temperature of PVC is about 210 ℃;
3. PVC has extremely high viscosity and very poor flow properties, limiting its use to some extent. The properties of PVC are often improved by the addition of fillers, elastomers, plasticizers, heat stabilizers, processing aids, heat resistance modifiers, and flow modifiers.
Application number 200910116208.9 discloses a PVC material and a preparation method thereof, wherein the PVC material comprises the following substances in parts by weight: 100 parts of PVC, 2-8 parts of stabilizer, 2-6 parts of processing aid, 1.5-2.5 parts of lubricant, 4-12 parts of filler and 0.05-1 part of colorant.
Application number 201110306510.8 discloses a special material for PVC pipes, which comprises the following components in parts by weight: 100 parts of PVC resin, 4-16 parts of butadiene acrylonitrile rubber/nano calcium carbonate composite powder rubber, 2.5-7 parts of chlorinated polyethylene, 0.4-6 parts of heat stabilizer, 1.1-3.5 parts of lubricant and 0.3-3.8 parts of colorant.
Application number 201110427270.7 discloses an antistatic PVC granular material and a preparation method thereof, wherein the antistatic PVC granular material is prepared from the following raw materials in parts by weight: 100 parts of PVC SG-390-one, 70-85 parts of plasticizer DOP, 4-5.5 parts of composite stabilizer, 1-3 parts of stearate, 35-48 parts of filler, 0.2-0.5 part of initiator DCP, 3-5 parts of reactive monomer TAIC, 4-6 parts of ethylene oxide and 1-3 parts of ethylene oxide.
The scheme has some effects on improving the elasticity of the PVC material, but the impact resistance of the PVC material cannot be obviously improved, and the application of the PVC material cannot be expanded to engineering application. Based on this, the impact modifier is mostly adopted in the prior art to directly improve the impact resistance of the PVC material, and with the development of PVC modification technology for many years, three toughening systems are gradually developed by the impact modifier for PVC: CPE (chlorinated polyethylene) system, ACR (acrylates) system, EVA (ethylene-vinyl acetate copolymer) system. In recent years, inorganic nanoparticles have been used to improve the mechanical properties of materials due to the appearance of nanomaterials.
In the prior art, calcium carbonate is also added, but is generally used as an additive for reducing the cost, improving the melt strength and the like, but not for improving the impact property, and when the addition amount is large, the impact property of the material is reduced. However, in further research, nano calcium carbonate has the effect of partially improving the impact performance, but the nano calcium carbonate also has to be used together with other impact modifiers, so that how to better utilize nano materials to modify PVC is an important research direction.
Disclosure of Invention
In order to solve the defect of weak impact resistance of the PVC material in the prior art, the invention provides a modified PVC material with impact resistance.
The invention adopts the technical scheme that a modified PVC material with impact resistance comprises the following components in parts by weight:
80-100 parts of polyvinyl chloride, 8-15 parts of nano calcium carbonate, 0.5-5 parts of plasticizer, 10-15 parts of impact modifier and 10-15 parts of elastic modifier; 3-5 parts of composite stabilizer and 3-5 parts of silicon carbide;
the plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8-10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Preferably, the impact modifier is chlorinated polyethylene.
Preferably, the material also comprises 20-30 parts of whisker silicon, 5-10 parts of dioctyl phthalate and 3-5 parts of coupling agent.
Preferably, the coupling agent is any one of isopropyl stearoyl titanate, isopropyldioleacyloxy (dioctylphosphonoyl) titanate, isopropyltrioleoyloxy titanate and isopropyltris (dodecylbenzenesulfonyl) titanate.
Preferably, the lubricant also comprises 2-5 parts of paraffin.
Preferably, the nano calcium carbonate has the particle size of 2-20nm and is treated by maleic anhydride grafted polyvinyl chloride.
Preferably, the paint also comprises 10-15 parts of zinc oxide.
Preferably, the paint also comprises 10-15 parts of white carbon black.
Preferably, the titanium pigment also comprises 20-25 parts of titanium dioxide.
Preferably, the PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3.
Compared with the prior art, the invention has the following beneficial effects:
1. diisononyl phthalate (DINP) which is a colorless oily liquid, has a molecular formula of C26H42O4, a molecular weight of 418.6 and a density of 0.973-0.977, belongs to a non-toxic epoxy plasticizer, is a general-purpose main plasticizer with excellent performance, and can be used as a vinyl resin plasticizer, a nitrile rubber softener, a tensile strength aid for nitrocellulose lacquer and the like. Compared with dioctyl phthalate (DOP), DINP has a larger molecular weight and a longer carbon chain, so that the DINP has better aging performance, migration resistance, extraction resistance and high temperature resistance, and correspondingly, under the same condition, the plasticizing effect of the DINP is slightly lower than that of the DOP. DINP is more environment-friendly than DOP, and is widely applied to various soft PVC products such as wires, cables, films, toys, sheaths and the like.
Epoxidized Soybean Oil (ESO), a light yellow viscous oily liquid, having the molecular formula of C57H106O10, molecular weight of 951.46, viscosity of 325mpa.S, refractive index of 1.473(25 ℃), is the most widely used nontoxic plasticizer and stabilizer for polyvinyl chloride. The ESO has good compatibility with PVC resin, low volatility, small mobility, excellent thermal stability and light stability, excellent water resistance and oil resistance, can endow products with good mechanical strength, weather resistance and electrical property, has no toxicity, is an internationally recognized chemical process auxiliary agent for food packaging materials, can be widely used for all polyvinyl chloride products, and can also be used for special printing ink, paint, coating, synthetic rubber, liquid composite stabilizer and the like.
The invention adopts the mixture of diisononyl phthalate and epoxidized soybean oil as the plasticizer, both the plasticizers are environment-friendly plasticizers, the acting force between PVC molecular chains can be reduced, the glass transition temperature and the flow temperature of PVC plastics and the melting point of microcrystals contained in the PVC plastics are all reduced, the plasticizer can improve the plasticity of resin, and the product is soft and has good low-temperature resistance; when the two plasticizers are compounded and used in the weight ratio of 8-10:1, the flexibility and the low-temperature resistance of the product can be improved.
2. The elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Expanded Polystyrene (EPS), also known as expandable polystyrene, is prepared by suspension polymerization of styrene and addition of a blowing agent. EPS is a rigid cellular foam of Polystyrene (PS), has good thermal insulation and shock absorption, high compressive strength, and very light weight, and the expanded polystyrene is added to PVC to improve the elasticity of the material. The invention controls the glass transition temperature of the expanded polystyrene at 80-90 ℃ and the density at 1.04-1.06g/cm3, so that the prepared material has good elasticity, high tensile strength and elongation and obviously improved elasticity.
3. The smaller the particle size of the filler is, the more beneficial the tensile strength and the impact strength of the filling material is, and the strength of the material can be improved by selecting the ultra-nano active calcium carbonate as the filler and controlling the particle size of the filler to be 2-20 nm; the good compatibility of the filler and the resin is the key for playing the role and controlling the addition amount, and the invention adopts the nano active calcium carbonate treated by the compatilizer maleic anhydride grafted polyvinyl chloride, which can improve the compatibility of the nano active calcium carbonate and the PVC resin, thereby improving the strength of the material;
4. the paraffin is used as the lubricant, so that the lubricating effect of each component of the PVC material and the external part can be improved, the friction is reduced, the production is facilitated, the compatibility and the dispersibility among the components are improved, and the silicon whisker is favorably dispersed into a system;
5. the crystal whisker silicon and the dioctyl phthalate are fused and dispersed into the whole system under the action of the coupling agent and the paraffin, the tensile strength, the temperature resistance and the impact strength are improved by 20-30 percent, and the cost of the raw materials can be reduced by 200 yuan/ton and 300 yuan/ton;
6. chlorinated polyethylene is selected as the impact modifier, and the prepared material has good impact resistance, good elasticity and strong weather resistance.
Detailed Description
A modified PVC material with impact resistance comprises the following components in parts by weight:
80-100 parts of polyvinyl chloride, 8-15 parts of nano calcium carbonate, 0.5-5 parts of plasticizer, 10-15 parts of impact modifier and 10-15 parts of elastic modifier; 3-5 parts of composite stabilizer and 3-5 parts of silicon carbide;
the plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8-10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 15-25min at the temperature of 100-140 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Example 1, a modified PVC material with impact resistance comprising the following components in parts by weight:
82 parts of polyvinyl chloride, 8 parts of nano calcium carbonate, 2 parts of plasticizer, 12 parts of impact modifier and 12 parts of elastic modifier; 3 parts of composite stabilizer and 3 parts of silicon carbide; the plasticizer is a mixture consisting of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 22min at the temperature of 120-130 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Example 2, a modified PVC material with impact resistance comprising the following components in parts by weight:
95 parts of polyvinyl chloride, 14 parts of nano calcium carbonate, 4 parts of plasticizer, 13 parts of impact modifier and 15 parts of elastic modifier; 5 parts of composite stabilizer and 5 parts of silicon carbide; the plasticizer is a mixture consisting of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 18min at the temperature of 130-140 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Example 3, a modified PVC material with impact resistance comprising the following components in parts by weight:
82 parts of polyvinyl chloride, 8 parts of nano calcium carbonate, 0.8 part of plasticizer, 12 parts of impact modifier and 12 parts of elastic modifier; 3 parts of composite stabilizer and 3 parts of silicon carbide; 28 parts of crystal whisker silicon, 10 parts of dioctyl phthalate and 5 parts of coupling agent. The plasticizer is a mixture consisting of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3. The coupling agent is any one of isopropyl stearoyl titanate, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl trioleoyl oxy titanate and isopropyl tris (dodecyl benzene sulfonyl) titanate, and in the embodiment, the coupling agent is selected to be isopropyl stearoyl titanate.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 22min at the temperature of 120-130 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Example 4, a modified PVC material with impact resistance comprising the following components in parts by weight:
82 parts of polyvinyl chloride, 8 parts of nano calcium carbonate, 5 parts of plasticizer, 12 parts of impact modifier and 12 parts of elastic modifier; 3 parts of composite stabilizer and 3 parts of silicon carbide; 22 parts of crystal whisker silicon, 7 parts of dioctyl phthalate, 3 parts of coupling agent and 5 parts of paraffin. The plasticizer is a mixture consisting of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3. The coupling agent is any one of isopropyl stearoyl titanate, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl trioleoyl oxy titanate and isopropyl tris (dodecyl benzene sulfonyl) titanate, and in the embodiment, the coupling agent is selected to be isopropyl stearoyl titanate.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 22min at the temperature of 120-130 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Example 5, a modified PVC material with impact resistance comprising the following components in parts by weight: 82 parts of polyvinyl chloride, 8 parts of nano calcium carbonate, 1 part of plasticizer, 12 parts of impact modifier and 12 parts of elastic modifier; 3 parts of composite stabilizer and 3 parts of silicon carbide; 22 parts of crystal whisker silicon, 7 parts of dioctyl phthalate, 3 parts of coupling agent, 5 parts of paraffin, 10 parts of zinc oxide, 12 parts of white carbon black and 24 parts of titanium dioxide. The plasticizer is a mixture consisting of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
Wherein the impact modifier is chlorinated polyethylene. The PVC material is a PVC material with the polymerization degree of 1000-1200 and the density of 1.35-1.45g/cm 3. The coupling agent is any one of isopropyl stearoyl titanate, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl trioleoyl oxy titanate and isopropyl tris (dodecyl benzene sulfonyl) titanate, and in the embodiment, the coupling agent is selected to be isopropyl stearoyl titanate.
When the PVC material is prepared, the steps are as follows:
firstly, preparing and mixing the components according to the weight ratio;
step two, the mixed raw materials are put into a high-speed blending machine and stirred for 22min at the temperature of 120-130 ℃;
and step three, extruding and molding the stirred raw materials by a double-screw extruder, wherein the extrusion temperature is 135-178 ℃.
Experimental part
In each of examples 1 to 5, samples were prepared according to the preparation methods described in the respective examples, and each group of samples was subjected to a performance test, and the results were recorded as follows:
| test items | Standard value | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Tensile Strength (MPa) | ≥15.0 | 23.5 | 23.6 | 30.5 | 32.2 | 33.4 |
| Flexural Strength (MPa) | ≥15.0 | 50.6 | 50.5 | 60.2 | 62.4 | 63.3 |
| Elongation at Break (%) | ≥150 | 552 | 553 | 628 | 633 | 635 |
| Heat distortion temperature (. degree. C.) | ≥50.0 | 118.3 | 119.2 | 138.5 | 137.5 | 138.8 |
| Temperature of impact catalysis (. degree. C.) | ≤-20 | -28 | -28 | -33 | -35 | -36 |
| hardness/Shore D | ≥50 | 86 | 85 | 101 | 102 | 105 |
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The modified PVC material with the impact resistance is characterized by comprising the following components in parts by weight:
80-100 parts of polyvinyl chloride, 8-15 parts of nano calcium carbonate, 0.5-5 parts of plasticizer, 10-15 parts of impact modifier and 10-15 parts of elastic modifier; 3-5 parts of composite stabilizer and 3-5 parts of silicon carbide;
the plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8-10: 1; the elastic modifier is expanded polystyrene with the glass transition temperature of 80-90 ℃ and the density of 1.04-1.06g/cm 3.
2. The modified PVC material with impact resistance of claim 1, wherein the impact modifier is chlorinated polyethylene.
3. The modified PVC material with impact resistance of claim 1, further comprising 20-30 parts of whisker silicon, 5-10 parts of dioctyl phthalate and 3-5 parts of coupling agent.
4. The modified PVC material with impact resistance of claim 3, wherein the coupling agent is any one of isopropyl stearoyl titanate, isopropyl dioleate acyloxy (dioctylphosphate acyloxy) titanate, isopropyl trioleoyloxy titanate, and isopropyl tris (dodecylbenzenesulfonyl) titanate.
5. The modified PVC material with impact resistance of claim 3, further comprising 2-5 parts of a lubricant, wherein the lubricant is paraffin wax.
6. The modified PVC material with impact resistance of claim 1, wherein the nano calcium carbonate has a particle size of 2-20nm and is treated with maleic anhydride grafted PVC.
7. The modified PVC material with impact resistance of claim 1, further comprising zinc oxide 10-15 parts.
8. The modified PVC material with impact resistance of claim 1, further comprising 10-15 parts of white carbon black.
9. The modified PVC material with impact resistance of claim 1, further comprising 20-25 parts of titanium dioxide.
10. The modified PVC material with impact resistance of claim 1, wherein the PVC material has a polymerization degree of 1000-1200 and a density of 1.35-1.45g/cm 3.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112300516A (en) * | 2020-11-09 | 2021-02-02 | 东莞欧德雅装饰材料有限公司 | Anti-shrinkage PVC edge banding and preparation method thereof |
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