CN111019270A - High-strength environment-friendly PVC (polyvinyl chloride) antibacterial board and preparation method thereof - Google Patents
High-strength environment-friendly PVC (polyvinyl chloride) antibacterial board and preparation method thereof Download PDFInfo
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- CN111019270A CN111019270A CN201911391733.1A CN201911391733A CN111019270A CN 111019270 A CN111019270 A CN 111019270A CN 201911391733 A CN201911391733 A CN 201911391733A CN 111019270 A CN111019270 A CN 111019270A
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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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- 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
- C08K2201/011—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
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
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- 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 belongs to the technical field of PVC plastic plates, and particularly relates to a high-strength environment-friendly PVC antibacterial plate and a preparation method thereof. The raw materials comprise PVC resin powder, a plasticizing accelerant, a reinforcing agent, a filling agent, wood powder, an antibacterial agent, a stabilizing agent, a lubricating agent, a flatting agent and an ink absorbing agent. According to the high-strength environment-friendly PVC antibacterial board, the compound reinforcing agent is added, so that the obtained board is high in hardness, high in strength and corrosion-resistant; the wood powder filler is added, so that the density of the board is reduced, and the board is light in weight, good in rigidity and strong in wood texture; the added stabilizer is green and environment-friendly and has no pollution; the special flatting agent is added, so that the prepared plate has low surface reflection rate and soft luster, and the matte effect can improve the light environment comfort level and ensure that people are not easy to generate visual fatigue; and the gloss of the board surface is uniform and consistent, secondary processing and painting are not needed, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of PVC plastic plates, and particularly relates to a high-strength environment-friendly PVC antibacterial plate and a preparation method thereof.
Background
At present, with the development of social economy, the living standard of people is greatly improved, the requirements on living environment and quality are higher and higher, and the attention on environmental protection in the world is added, the traditional wood decoration and finishing materials are gradually replaced by artificial materials, and PVC plastic plates are one of the products and are widely applied to the fields of decoration, finishing, medical sanitation, transportation and the like. However, due to the inherent defects of the PVC plastic, the PVC plastic plate has some quality shortages, such as: when the board is affected with damp and used for a long time, the board generates mould and mildew; the plate has low strength, small hardness and easy warping; when the ink is applied to advertisement printing, the adsorption force to ink is weak, and the ink is easy to drop; static electricity, dust collection and the like are easy to generate; these defects seriously affect the market orientation of the PVC plastic plate and limit the development speed and the application range of the PVC plastic plate.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art and provides a high-strength environment-friendly PVC antibacterial board. The high-strength environment-friendly PVC antibacterial board has the advantages of high board strength, high board hardness, corrosion resistance, antibacterial and bactericidal properties, good ink adsorption capacity and static resistance; the invention also provides a preparation method thereof.
The high-strength environment-friendly PVC antibacterial board comprises the following raw materials in parts by weight:
wherein:
the PVC resin powder is polyvinyl chloride resin, and the polymerization degree is 800-1100.
The plasticizing accelerant is a mixture of acrylic esters and styrene, and the mass ratio of the acrylic esters to the styrene is 1: 1-3: 1.
the acrylate is a polymer of methyl methacrylate and either butyl acrylate or ethyl acrylate.
The styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 2-4: 1, the mass ratio of styrene to acrylonitrile is preferably 4: 1. 3: 1 or 7: 3, or a pharmaceutically acceptable salt thereof.
The reinforcing agent is a compound of MBS (methyl methacrylate-butadiene-styrene ternary graft copolymer) and CPE (chlorinated polyethylene), and the mass ratio of the MBS to the CPE is 1: 1-1: 3.
the filler is one or more of heavy calcium carbonate, light calcium carbonate or activated calcium carbonate.
The wood powder is one of bamboo wood, poplar wood or fir wood powder, the granularity is 30-200 meshes, and the granularity is uniform.
The antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 3-1: 10. wherein: the quaternary ammonium salt compound is one of tridodecyl methyl ammonium chloride or 4-vinyl pyridine-acrylamide copolymer (QCVA); the titanium antibacterial agent is nano-scale titanium dioxide.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is one or more of stearic acid, high melting point paraffin wax or polyethylene wax. The melting point of the high-melting-point paraffin is 65-75 ℃.
The matting agent is a compound of silicon dioxide and polypropylene graft, and the mass ratio of the silicon dioxide to the polypropylene graft is 1: 0.5-1: 4. the polypropylene graft is maleic anhydride grafted polypropylene.
The ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 2-1: 8; the quaternary ammonium salt compound is one of tridodecyl methyl ammonium chloride or 4-vinyl pyridine-acrylamide copolymer (QCVA).
The preparation method of the high-strength environment-friendly PVC antibacterial board comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, added into a high-speed mixer, heated to 120-130 ℃, then put into a cold mixer for cooling, and put into a storage bin for standby when the materials are cooled to below 50 ℃;
(2) extrusion and shaping: and sucking the mixture into a hopper of a double-screw extruder through a vacuum feeding machine, melting and plasticizing the mixture through the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and carrying out shaping, trimming, traction and automatic metering cutting through a cooling and shaping device to obtain the high-strength environment-friendly PVC antibacterial plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 15-20 rpm/min, the main machine current is 60-70A, the temperature of the screw cylinder is 175-185 ℃, and the temperature of the die is 190-200 ℃.
The high-strength environment-friendly PVC antibacterial board can be applied to the transportation industry (such as a medical special carriage and carriage internal fittings, a mobile treatment vehicle interior and a blood sampling vehicle interior); special cabinets and decorations in the medical and health field (such as sterile laboratories, sterile injection rooms, ICU intensive care units, etc.); home furnishings (e.g., cabinets and decorations in toilets and kitchens); the environment with high humidity and high requirement on sanitation, such as public bathrooms, swimming pools and the like, and the partition, decoration and other fields in rooms which are easy to grow bacteria.
Compared with the prior art, the invention has the following beneficial effects:
(1) the high-strength environment-friendly PVC antibacterial board is made of hard polyvinyl chloride materials, the antibacterial agent compounded by titanium and quaternary ammonium salt compounds is added in a production formula, the antibacterial agent can be used for long-acting, efficient and comprehensive resistance to bacteria, fungi, mold and the like, the effective rate of the antibacterial agent reaches 99.99%, and the quaternary ammonium salt compounds also have the function of an antistatic agent.
(2) According to the high-strength environment-friendly PVC antibacterial board, the compound reinforcing agent is added, so that the obtained board is high in hardness, high in strength and corrosion-resistant; the wood powder filler is added, so that the density of the board is reduced, and the board is light in weight, good in rigidity, high in strength and strong in wood texture; the added stabilizer is green and environment-friendly and has no pollution; the special flatting agent is added, so that the prepared plate has low surface reflection rate and soft luster, and the matte effect can improve the light environment comfort level and ensure that people are not easy to generate visual fatigue; and the gloss of the board surface is uniform and consistent, secondary processing and painting are not needed, and the cost is saved.
(3) According to the high-strength environment-friendly PVC antibacterial board, the special quaternary ammonium salt compound and the amino acid ink absorbent are added, so that the board has an antistatic property; meanwhile, the ink adsorption capacity of the plate is improved, and the quaternary ammonium salt compound also plays a role of an antibacterial agent.
(4) The preparation method of the high-strength environment-friendly PVC antibacterial board is simple and easy to implement and easy to realize.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
The high-strength environment-friendly PVC antibacterial board described in the embodiment 1 is composed of the following raw materials:
wherein:
the PVC resin powder is SG-5 type resin powder, and the polymerization degree is 950-1100.
The plasticizing accelerant is a mixture of acrylic esters and styrene, the acrylic esters are polymers of methyl methacrylate and butyl acrylate, the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 4: 1; the mass ratio of the acrylic esters to the styrene is 1: 1.
the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 2.
the filler is heavy calcium carbonate.
The wood powder is fir powder after activation treatment with the granularity of 100 meshes.
The antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 5; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is polyethylene wax.
The matting agent is a compound of silicon dioxide and maleic anhydride grafted polypropylene, and the mass ratio of the silicon dioxide to the maleic anhydride grafted polypropylene is 1: 1.
the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 5; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The preparation method of the high-strength environment-friendly PVC antibacterial board described in embodiment 1 comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 120 ℃, are cooled in a cold mixer, and are put into a storage bin for standby when being cooled to 40 ℃;
(2) extrusion and shaping: and sucking the mixture into a hopper of a double-screw extruder through a vacuum feeding machine, melting and plasticizing the mixture through the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture through a cooling and shaping device to obtain the high-strength environment-friendly PVC antibacterial plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 15rpm/min, the main machine current is 62-65A, the temperatures of 4 heating zones of the screw cylinder are 175 ℃, 177 ℃, 178 ℃ respectively, and the mold temperature is 200 ℃.
A hard, high-strength, environment-friendly PVC antibacterial sheet I having a thickness of 5mm was prepared by this example 1.
Example 2
The high-strength environment-friendly PVC antibacterial board described in the embodiment 2 is composed of the following raw materials:
wherein:
the PVC resin powder is SG-5 type resin powder, and the polymerization degree is 950-1100.
The plasticizing accelerant is a mixture of acrylic esters and styrene, the acrylic esters are polymers of methyl methacrylate and ethyl acrylate, the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 3: 1; the mass ratio of the acrylic esters to the styrene is 3: 1.
the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 1.
the filler is heavy calcium carbonate.
The wood powder is activated poplar wood powder with the granularity of 100 meshes.
The antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 3; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is stearic acid.
The matting agent is a compound of silicon dioxide and maleic anhydride grafted polypropylene, and the mass ratio of the silicon dioxide to the maleic anhydride grafted polypropylene is 1: 4.
the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 8; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride.
The preparation method of the high-strength environment-friendly PVC antibacterial board described in embodiment 2 comprises the following steps:
(1) automatically batching the materials according to the formula amount by a full-automatic batching system, adding the materials into a high-speed mixer, heating to 125 ℃, cooling the materials in a cold mixer, and putting the materials into a storage bin for later use when the materials are cooled to 45 ℃;
(2) extrusion and shaping: and sucking the mixture into a hopper of a double-screw extruder through a vacuum feeding machine, melting and plasticizing the mixture through the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and carrying out shaping, trimming, traction and automatic metering cutting through a cooling and shaping device to obtain the high-strength environment-friendly PVC antibacterial plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 20rpm/min, the main machine current is 68-70A, the temperatures of 4 heating zones of the screw cylinder are 176 ℃, 178 ℃, 180 ℃ and 182 ℃, and the mold temperature is 198 ℃.
The hard high-strength environment-friendly PVC antibacterial board II with the thickness of 5mm is prepared by the method of example 2.
Example 3
The high-strength environment-friendly PVC antibacterial board described in the embodiment 3 is composed of the following raw materials:
wherein:
the PVC resin powder is SG-5 type resin powder, and the polymerization degree is 950-1100.
The plasticizing accelerant is a mixture of acrylic esters and styrene, the acrylic esters are polymers of methyl methacrylate and butyl acrylate, the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 7: 3; the mass ratio of the acrylic esters to the styrene is 2: 1.
the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 3.
the filler is light calcium carbonate.
The wood powder is fir powder after activation treatment with the granularity of 150 meshes.
The antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 10; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is high-melting-point paraffin, and the melting point of the high-melting-point paraffin is 70 ℃.
The matting agent is a compound of silicon dioxide and maleic anhydride grafted polypropylene, and the mass ratio of the silicon dioxide to the maleic anhydride grafted polypropylene is 1: 2.5.
the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 2; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The preparation method of the high-strength environment-friendly PVC antibacterial board described in embodiment 3 comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 130 ℃, are cooled in a cold mixer, and are put into a storage bin for standby when being cooled to 35 ℃;
(2) extrusion and shaping: and sucking the mixture into a hopper of a double-screw extruder through a vacuum feeding machine, melting and plasticizing the mixture through the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and carrying out shaping, trimming, traction and automatic metering cutting through a cooling and shaping device to obtain the high-strength environment-friendly PVC antibacterial plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 15rpm/min, the main machine current is 62-65A, the temperatures of 4 heating zones of the screw cylinder are 175 ℃, 176 ℃, 177 ℃, 178 ℃ respectively, and the mold temperature is 195 ℃.
A hard, high-strength and environment-friendly PVC antibacterial board III with a thickness of 5mm is prepared by the method of example 3.
Comparative example 1
The PVC antibacterial board of comparative example 1 is composed of the following raw materials:
wherein:
the PVC resin powder is SG-7 type resin powder, and the polymerization degree is 750-850.
The plasticizing accelerant is a mixture of acrylic esters and styrene, the acrylic esters are polymers of methyl methacrylate and butyl acrylate, the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 7: 3; the mass ratio of the acrylic esters to the styrene is 2: 1.
the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 3.
the filler is light calcium carbonate.
The wood powder is fir powder after activation treatment with the granularity of 150 meshes.
The antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 10; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is high-melting-point paraffin, and the melting point of the high-melting-point paraffin is 70 ℃.
The matting agent is a compound of silicon dioxide and maleic anhydride grafted polypropylene, and the mass ratio of the silicon dioxide to the maleic anhydride grafted polypropylene is 1: 2.5.
the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 2; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
The preparation method of comparative example 1 is the same as that of example 3, and comparative example 1 prepares a PVC antibacterial sheet iv having a thickness of 5 mm.
Comparative example 2
The PVC antibacterial board of comparative example 2 is composed of the following raw materials:
wherein:
the PVC resin powder is SG-5 type resin powder, and the polymerization degree is 950-1100.
The plasticizing accelerant is a mixture of acrylic esters and styrene, the acrylic esters are polymers of methyl methacrylate and butyl acrylate, the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 7: 3; the mass ratio of the acrylic esters to the styrene is 2: 1.
the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 3.
the filler is light calcium carbonate.
The wood powder is fir powder after activation treatment with the granularity of 150 meshes.
The antibacterial agent is nano titanium dioxide.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is high-melting-point paraffin, and the melting point of the high-melting-point paraffin is 70 ℃.
The matting agent is a compound of silicon dioxide and maleic anhydride grafted polypropylene, and the mass ratio of the silicon dioxide to the maleic anhydride grafted polypropylene is 1: 2.5.
the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 2; the quaternary ammonium salt compound is 4-vinylpyridine-acrylamide copolymer (QCVA).
Comparative example 2 was prepared in the same manner as in example 3, and comparative example 2 prepared a PVC antibiotic plate v having a thickness of 5 mm.
The high-strength environment-friendly PVC antibacterial boards i to iii prepared in examples 1 to 3, the boards iv and v prepared in comparative examples 1 and 2, and the PVC hard board vi (5mm 1220mm 2440mm) commonly used in the market were subjected to performance tests, and the results of the performance tests are shown in table 1.
TABLE 1 PVC antibacterial board Performance test results
Claims (10)
1. The utility model provides an antibiotic board of high strength environmental protection PVC which characterized in that: the raw materials comprise the following components in parts by mass:
2. the high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the PVC resin powder is polyvinyl chloride resin, and the polymerization degree is 800-1100.
3. The high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the plasticizing accelerant is a mixture of acrylic esters and styrene, and the mass ratio of the acrylic esters to the styrene is 1: 1-3: 1.
4. the high-strength environment-friendly PVC antibacterial board according to claim 3, characterized in that: the acrylic ester is a polymer of methyl methacrylate and any one of butyl acrylate or ethyl acrylate; the styrene is a polymer of styrene and acrylonitrile, and the mass ratio of the styrene to the acrylonitrile is 2-4: 1.
5. the high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the enhancer is a compound of MBS and CPE, and the mass ratio of the MBS to the CPE is 1: 1-1: 3.
6. the high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the filler is one or more of heavy calcium carbonate, light calcium carbonate or activated calcium carbonate; the wood powder is one of bamboo wood, poplar wood or fir powder; the stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite; the lubricant is one or more of stearic acid, high melting point paraffin wax or polyethylene wax.
7. The high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the antibacterial agent is prepared by compounding a quaternary ammonium salt compound and a titanium antibacterial agent, wherein the mass ratio of the quaternary ammonium salt compound to the titanium antibacterial agent is 1: 3-1: 10; the ink absorbing agent is a compound of amino acid and quaternary ammonium salt compound, and the mass ratio of the amino acid to the quaternary ammonium salt compound is 1: 2-1: 8.
8. the high-strength environment-friendly PVC antibacterial board according to claim 7, characterized in that: the quaternary ammonium salt compound is one of tridodecyl methyl ammonium chloride or 4-vinyl pyridine-acrylamide copolymer (QCVA); the titanium antibacterial agent is nano-scale titanium dioxide.
9. The high-strength environment-friendly PVC antibacterial board according to claim 1, characterized in that: the matting agent is a compound of silicon dioxide and polypropylene graft, and the mass ratio of the silicon dioxide to the polypropylene graft is 1: 0.5-1: 4; the polypropylene graft is maleic anhydride grafted polypropylene.
10. The preparation method of the high-strength environment-friendly PVC antibacterial board as claimed in claim 1, is characterized in that: the method comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, added into a high-speed mixer, heated to 120-130 ℃, then put into a cold mixer for cooling, and put into a storage bin for standby when the materials are cooled to below 50 ℃;
(2) extrusion and shaping: and sucking the mixture into a hopper of a double-screw extruder through a vacuum feeding machine, melting and plasticizing the mixture through the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and carrying out shaping, trimming, traction and automatic metering cutting through a cooling and shaping device to obtain the high-strength environment-friendly PVC antibacterial plate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484687A (en) * | 2020-04-22 | 2020-08-04 | 广东联塑科技实业有限公司 | Impact-resistant toughened PVC pipe fitting and preparation method thereof |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484687A (en) * | 2020-04-22 | 2020-08-04 | 广东联塑科技实业有限公司 | Impact-resistant toughened PVC pipe fitting and preparation method thereof |
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Address after: 256102 Economic Development Zone, Yiyuan County, Zibo City, Shandong Province (West of Wenhe road and north of Taixue Road) Applicant after: Shandong Botuo New Material Technology Co.,Ltd. Address before: 256102 Economic Development Zone, Yiyuan County, Zibo City, Shandong Province (West of Wenhua Road and north of Taixue Road) Applicant before: Shandong Botuo New Material Technology Co.,Ltd. |
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Application publication date: 20200417 |