CN112442249A - Food-grade PVC (polyvinyl chloride) film - Google Patents
Food-grade PVC (polyvinyl chloride) film Download PDFInfo
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- CN112442249A CN112442249A CN202011323543.9A CN202011323543A CN112442249A CN 112442249 A CN112442249 A CN 112442249A CN 202011323543 A CN202011323543 A CN 202011323543A CN 112442249 A CN112442249 A CN 112442249A
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims description 78
- 239000004800 polyvinyl chloride Substances 0.000 title claims description 78
- 239000004014 plasticizer Substances 0.000 claims abstract description 37
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000011347 resin Substances 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 29
- 239000000022 bacteriostatic agent Substances 0.000 claims abstract description 22
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 244000178870 Lavandula angustifolia Species 0.000 claims abstract description 15
- 235000010663 Lavandula angustifolia Nutrition 0.000 claims abstract description 15
- 239000007822 coupling agent Substances 0.000 claims abstract description 15
- 239000001102 lavandula vera Substances 0.000 claims abstract description 15
- 235000018219 lavender Nutrition 0.000 claims abstract description 15
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 15
- 239000003549 soybean oil Substances 0.000 claims abstract description 15
- 239000000341 volatile oil Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000013305 food Nutrition 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 42
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 28
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 14
- 239000006229 carbon black Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 13
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 13
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 7
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 claims description 7
- 239000012043 crude product Substances 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 claims description 7
- 238000003828 vacuum filtration Methods 0.000 claims description 7
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229940075529 glyceryl stearate Drugs 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000001993 wax Substances 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229940037312 stearamide Drugs 0.000 claims description 3
- 230000003385 bacteriostatic effect Effects 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 208000005623 Carcinogenesis Diseases 0.000 description 2
- 230000036952 cancer formation Effects 0.000 description 2
- 231100000504 carcinogenesis Toxicity 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000005003 food packaging material Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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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- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The embodiment of the invention relates to the technical field of PVC films, and particularly discloses a food-grade PVC film which comprises the following raw materials in parts by weight: 90-110 parts of modified PVC resin, 10-15 parts of plasticizer, 0.1-0.4 part of lavender essential oil, 20-25 parts of acetyl tri-n-butyl citrate, 4-8 parts of heat stabilizer, 0.2-0.6 part of lubricant, 5-10 parts of tributyl citrate, 5-10 parts of epoxidized soybean oil, 1-5 parts of coupling agent, 6-10 parts of filler and 0.3-0.8 part of nano bacteriostatic agent. In addition, the nano silver adopts a special process and utilizes the active carbon as a carrier, so that the nano silver has strong adsorption capacity, long service time and good bacteriostatic effect, and is convenient to apply to the food industry.
Description
Technical Field
The embodiment of the invention relates to the technical field of PVC films, in particular to a food-grade PVC film.
Background
The PVC film mainly comprises polyvinyl chloride, and other components are added to enhance the heat resistance, toughness, ductility and the like of the PVC film; the uppermost layer of the surface film is paint, the main component of the middle layer is polyvinyl chloride, and the lowermost layer is back-coated adhesive; the plastic film is a synthetic material which is popular and popular in the world at present and is widely applied, and the plastic film is a vacuum plastic film in essence and is used for surface layer packaging of various panels, so the plastic film is also called as a decorative film and an adhesive film and is applied to various industries such as building materials, packaging, medicines and the like.
At present, plasticizers commonly used in industrial production of PVC films are mainly phthalate esters, although the plasticizers have good performance, the use of the plasticizers is greatly limited due to the potential hazard of carcinogenesis, and the application of the plasticizers in food packaging materials and medical instrument toys is gradually eliminated; therefore, it is necessary to design a food grade PVC film.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a food-grade PVC film, so as to solve the problems mentioned in the background art. In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a food-grade PVC film comprises the following raw materials in parts by weight: 90-110 parts of modified PVC resin, 10-15 parts of plasticizer, 0.1-0.4 part of lavender essential oil, 20-25 parts of acetyl tri-n-butyl citrate, 4-8 parts of heat stabilizer, 0.2-0.6 part of lubricant, 5-10 parts of tributyl citrate, 5-10 parts of epoxidized soybean oil, 1-5 parts of coupling agent, 6-10 parts of filler and 0.3-0.8 part of nano bacteriostatic agent.
As a further scheme of the embodiment of the invention: the food-grade PVC film comprises the following raw materials in parts by weight: 95-105 parts of modified PVC resin, 12-14 parts of plasticizer, 0.2-0.3 part of lavender essential oil, 22-24 parts of acetyl tri-n-butyl citrate, 5-7 parts of heat stabilizer, 0.3-0.5 part of lubricant, 6-9 parts of tributyl citrate, 6-8 parts of epoxidized soybean oil, 2-4 parts of coupling agent, 7-9 parts of filler and 0.4-0.7 part of nano bacteriostatic agent.
As a further scheme of the embodiment of the invention: the food-grade PVC film comprises the following raw materials in parts by weight: 100 parts of modified PVC resin, 13 parts of plasticizer, 0.25 part of lavender essential oil, 23 parts of acetyl tributyl citrate, 6 parts of heat stabilizer, 0.4 part of lubricant, 8 parts of tributyl citrate, 7 parts of epoxidized soybean oil, 3 parts of coupling agent, 8 parts of filler and 0.6 part of nano bacteriostatic agent.
As a further scheme of the embodiment of the invention: the lubricant is one or more of glyceryl stearate, stearic acid amide, paraffin and polyethylene wax.
As a further scheme of the embodiment of the invention: the nano bacteriostatic agent comprises nano silver particles and uses active carbon as a carrier.
As a further scheme of the embodiment of the invention: the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of the calcium carbonate to the white carbon black to the barium sulfate is 7:4-5:3-4, and the filler is a powder substance with the particle size of 60-70 um.
As a further scheme of the embodiment of the invention: the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.6-0.7.
As a further scheme of the embodiment of the invention: the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 4-5 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 3-4 times, and drying in an oven to obtain the modified PVC resin.
As a further scheme of the embodiment of the invention: the heat stabilizer comprises barium stearate.
As a further scheme of the embodiment of the invention: the plasticizer comprises dioctyl ester.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
in the food-grade PVC film provided by the embodiment of the invention, the modified PVC resin, the plasticizer, the lavender essential oil acetyl tributyl citrate, the tributyl citrate and the nano bacteriostatic agent are adopted, and the heat stabilizer, the lubricant, the tributyl citrate, the epoxidized soybean oil, the coupling agent, the filler and the nano bacteriostatic agent are supplemented, so that the food-grade PVC film can be greatly improved in performance, can be used for a long time, is safe and nontoxic, is strong in adsorption capacity, long in service time and good in bacteriostatic effect, and is convenient to apply to the food industry because the nano-silver adopts a special process and utilizes the activated carbon as a carrier.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
At present, the plasticizer commonly used in the industrial production of the PVC film is mainly phthalate, although the performance of the plasticizer is good, the use of the plasticizer is greatly limited due to the potential hazard of carcinogenesis, and the application of the plasticizer in food packaging materials and medical appliance toys is gradually eliminated.
In the food-grade PVC film provided by the embodiment of the invention, the modified PVC resin, the plasticizer, the lavender essential oil acetyl tributyl citrate, the tributyl citrate and the nano bacteriostatic agent are adopted, and the heat stabilizer, the lubricant, the tributyl citrate, the epoxidized soybean oil, the coupling agent, the filler and the nano bacteriostatic agent are supplemented, so that the food-grade PVC film can be greatly improved in performance, can be used for a long time, is safe and nontoxic, is strong in adsorption capacity, long in service time and good in bacteriostatic effect, and is convenient to apply to the food industry because the nano-silver adopts a special process and utilizes the activated carbon as a carrier.
Example 1
A food-grade PVC film comprises the following raw materials in parts by weight: 90 parts of modified PVC resin, 10 parts of plasticizer, 0.1 part of lavender essential oil, 20 parts of acetyl tributyl citrate, 4 parts of heat stabilizer, 0.2 part of lubricant, 5 parts of tributyl citrate, 5 parts of epoxidized soybean oil, 1 part of coupling agent, 6 parts of filler and 0.3 part of nano bacteriostatic agent.
Further, in a preferred embodiment provided by the present invention, the lubricant is glyceryl stearate.
Further, in a preferred embodiment provided by the present invention, the nano bacteriostatic agent comprises nano silver particles, and activated carbon is used as a carrier.
Further, in a preferred embodiment provided by the present invention, the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of calcium carbonate, white carbon black and barium sulfate is 7:4:3, and the filler is a powder substance and has a particle size of 60 um.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.6.
Further, in a preferred embodiment provided by the present invention, the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 4 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 3 times, and drying in an oven to obtain the modified PVC resin.
Further, in a preferred embodiment provided by the present invention, the heat stabilizer comprises barium stearate.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl ester.
Example 2
A food-grade PVC film comprises the following raw materials in parts by weight: 95 parts of modified PVC resin, 12 parts of plasticizer, 0.2 part of lavender essential oil, 22 parts of acetyl tributyl citrate, 5 parts of heat stabilizer, 0.3 part of lubricant, 6 parts of tributyl citrate, 6 parts of epoxidized soybean oil, 2 parts of coupling agent, 7 parts of filler and 0.4 part of nano bacteriostatic agent.
Further, in a preferred embodiment provided by the present invention, the lubricant is a mixture of glyceryl stearate, stearamide, paraffin wax and polyethylene wax.
Further, in a preferred embodiment provided by the present invention, the nano bacteriostatic agent comprises nano silver particles, and activated carbon is used as a carrier.
Further, in a preferred embodiment provided by the present invention, the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of calcium carbonate, white carbon black and barium sulfate is 7:5:3, and the filler is a powder substance and has a particle size of 60-70 um.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.7.
Further, in a preferred embodiment provided by the present invention, the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 5 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 4 times, and drying in an oven to obtain the modified PVC resin.
Further, in a preferred embodiment provided by the present invention, the heat stabilizer comprises barium stearate.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl ester.
Example 3
A food-grade PVC film comprises the following raw materials in parts by weight: 100 parts of modified PVC resin, 13 parts of plasticizer, 0.25 part of lavender essential oil, 23 parts of acetyl tributyl citrate, 6 parts of heat stabilizer, 0.4 part of lubricant, 8 parts of tributyl citrate, 7 parts of epoxidized soybean oil, 3 parts of coupling agent, 8 parts of filler and 0.6 part of nano bacteriostatic agent.
Further, in a preferred embodiment provided by the present invention, the lubricant is a mixture of glyceryl stearate and stearamide.
Further, in a preferred embodiment provided by the present invention, the nano bacteriostatic agent comprises nano silver particles, and activated carbon is used as a carrier.
Further, in a preferred embodiment provided by the present invention, the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of calcium carbonate, white carbon black and barium sulfate is 7:5:4, and the filler is a powder substance and has a particle size of 60 to 70 um.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.6.
Further, in a preferred embodiment provided by the present invention, the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 4 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 3 times, and drying in an oven to obtain the modified PVC resin.
Further, in a preferred embodiment provided by the present invention, the heat stabilizer comprises barium stearate.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl ester.
Example 4
A food-grade PVC film comprises the following raw materials in parts by weight: 105 parts of modified PVC resin, 14 parts of plasticizer, 0.3 part of lavender essential oil, 24 parts of acetyl tributyl citrate, 7 parts of heat stabilizer, 0.5 part of lubricant, 9 parts of tributyl citrate, 8 parts of epoxidized soybean oil, 4 parts of coupling agent, 9 parts of filler and 0.7 part of nano bacteriostatic agent.
Further, in a preferred embodiment provided by the present invention, the lubricant is polyethylene wax.
Further, in a preferred embodiment provided by the present invention, the nano bacteriostatic agent comprises nano silver particles, and activated carbon is used as a carrier.
Further, in a preferred embodiment provided by the present invention, the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of calcium carbonate, white carbon black and barium sulfate is 7:4:4, and the filler is a powder substance and has a particle size of 60 to 70 um.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.7.
Further, in a preferred embodiment provided by the present invention, the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 5 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 4 times, and drying in an oven to obtain the modified PVC resin.
Further, in a preferred embodiment provided by the present invention, the heat stabilizer comprises barium stearate.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl ester.
Example 5
A food-grade PVC film comprises the following raw materials in parts by weight: 110 parts of modified PVC resin, 15 parts of plasticizer, 0.4 part of lavender essential oil, 25 parts of acetyl tributyl citrate, 8 parts of heat stabilizer, 0.6 part of lubricant, 10 parts of tributyl citrate, 10 parts of epoxidized soybean oil, 5 parts of coupling agent, 10 parts of filler and 0.8 part of nano bacteriostatic agent.
Further, in a preferred embodiment provided by the present invention, the lubricant is polyethylene wax.
Further, in a preferred embodiment provided by the present invention, the nano bacteriostatic agent comprises nano silver particles, and activated carbon is used as a carrier.
Further, in a preferred embodiment provided by the present invention, the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of calcium carbonate, white carbon black and barium sulfate is 7:4:4, and the filler is a powder substance and has a particle size of 60 to 70 um.
Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl phthalate and dioctyl adipate, and the mass ratio of the dioctyl phthalate to the dioctyl adipate is 1: 0.7.
Further, in a preferred embodiment provided by the present invention, the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 5 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 4 times, and drying in an oven to obtain the modified PVC resin.
Further, in a preferred embodiment provided by the present invention, the heat stabilizer comprises barium stearate. Further, in a preferred embodiment provided by the present invention, the plasticizer comprises dioctyl ester.
Comparative example:
commercially available PVC films.
Compared with the commercial PVC film of the comparative example, the food-grade PVC film provided by the embodiment of the invention adopts the modified PVC resin, the plasticizer, the lavender essential oil acetyl tri-n-butyl citrate, the tributyl citrate and the nano bacteriostat, and is supplemented with the heat stabilizer, the lubricant, the tributyl citrate, the epoxidized soybean oil, the coupling agent, the filler and the nano bacteriostat, so that the performance of the food-grade PVC film can be greatly improved, the food-grade PVC film can be used for a long time, and is safe and nontoxic.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A food-grade PVC film is characterized by comprising the following raw materials in parts by weight: 90-110 parts of modified PVC resin, 10-15 parts of plasticizer, 0.1-0.4 part of lavender essential oil, 20-25 parts of acetyl tri-n-butyl citrate, 4-8 parts of heat stabilizer, 0.2-0.6 part of lubricant, 5-10 parts of tributyl citrate, 5-10 parts of epoxidized soybean oil, 1-5 parts of coupling agent, 6-10 parts of filler and 0.3-0.8 part of nano bacteriostatic agent.
2. The food-grade PVC film according to claim 1, wherein the food-grade PVC film comprises the following raw materials in parts by weight: 95-105 parts of modified PVC resin, 12-14 parts of plasticizer, 0.2-0.3 part of lavender essential oil, 22-24 parts of acetyl tri-n-butyl citrate, 5-7 parts of heat stabilizer, 0.3-0.5 part of lubricant, 6-9 parts of tributyl citrate, 6-8 parts of epoxidized soybean oil, 2-4 parts of coupling agent, 7-9 parts of filler and 0.4-0.7 part of nano bacteriostatic agent.
3. The food-grade PVC film according to claim 2, wherein the food-grade PVC film comprises the following raw materials in parts by weight: 100 parts of modified PVC resin, 13 parts of plasticizer, 0.25 part of lavender essential oil, 23 parts of acetyl tributyl citrate, 6 parts of heat stabilizer, 0.4 part of lubricant, 8 parts of tributyl citrate, 7 parts of epoxidized soybean oil, 3 parts of coupling agent, 8 parts of filler and 0.6 part of nano bacteriostatic agent.
4. A food grade PVC film according to any of claims 1-3, wherein the lubricant is one or more of glyceryl stearate, stearamide, paraffin wax, polyethylene wax.
5. A food grade PVC film according to claim 4, wherein the nano bacteriostat comprises nano silver particles, using activated carbon as carrier.
6. A food-grade PVC film according to claim 5, wherein the filler is a mixture of calcium carbonate, white carbon black and barium sulfate, the mass ratio of the calcium carbonate, the white carbon black and the barium sulfate is 7:4-5:3-4, the filler is a powdery substance, and the particle size is 60-70 um.
7. A food grade PVC film according to claim 6, wherein the plasticizer comprises dioctyl phthalate and dioctyl adipate in a mass ratio of 1: 0.6-0.7.
8. A food grade PVC film according to claim 7, wherein the modified PVC resin is prepared by the following method: adding polyvinyl chloride, an initiator BPO and a 1, 2-dichloroethane solvent into a flask, and uniformly stirring and mixing; slowly dropwise adding a methacryloyloxyethyl trimethyl ammonium chloride monomer into a reaction system, introducing nitrogen for protection, heating in a constant-temperature water bath, and stirring and reacting for 4-5 hours under the temperature condition; and after the reaction is finished, dropwise adding methanol to slowly separate out the resin from the solvent, carrying out vacuum filtration, washing the crude product with methanol, then washing with distilled water for 3-4 times, and drying in an oven to obtain the modified PVC resin.
9. A food grade PVC film according to claim 8, wherein the heat stabilizer comprises barium stearate.
10. A food grade PVC film according to claim 9, wherein the plasticizer comprises dioctyl ester.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396630A (en) * | 2013-07-16 | 2013-11-20 | 安徽安远塑胶股份有限公司 | Environment-friendly anti-bacterial PVC (Polyvinyl Chloride) thin film |
| CN111234420A (en) * | 2020-03-31 | 2020-06-05 | 安徽航达环保科技有限公司 | PVC (polyvinyl chloride) antibacterial film and preparation method thereof |
| CN111471260A (en) * | 2020-05-28 | 2020-07-31 | 唐鹏 | Antibacterial PVC film and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396630A (en) * | 2013-07-16 | 2013-11-20 | 安徽安远塑胶股份有限公司 | Environment-friendly anti-bacterial PVC (Polyvinyl Chloride) thin film |
| CN111234420A (en) * | 2020-03-31 | 2020-06-05 | 安徽航达环保科技有限公司 | PVC (polyvinyl chloride) antibacterial film and preparation method thereof |
| CN111471260A (en) * | 2020-05-28 | 2020-07-31 | 唐鹏 | Antibacterial PVC film and preparation method thereof |
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