CN105820464A - Preparation method and application of high-strength plastic bag material composition and plastic bag - Google Patents
Preparation method and application of high-strength plastic bag material composition and plastic bag Download PDFInfo
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- CN105820464A CN105820464A CN201610256457.8A CN201610256457A CN105820464A CN 105820464 A CN105820464 A CN 105820464A CN 201610256457 A CN201610256457 A CN 201610256457A CN 105820464 A CN105820464 A CN 105820464A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 59
- 239000004033 plastic Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000203 mixture Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 title claims abstract description 15
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 32
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 32
- 239000004793 Polystyrene Substances 0.000 claims abstract description 31
- 229920002223 polystyrene Polymers 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 27
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 27
- 239000010425 asbestos Substances 0.000 claims abstract description 27
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 27
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims abstract description 27
- 239000002023 wood Substances 0.000 claims abstract description 27
- 235000013312 flour Nutrition 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims description 16
- 230000003078 antioxidant effect Effects 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 11
- 239000004970 Chain extender Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- -1 3, 5-di-tert-butyl-4-hydroxyphenyl Chemical group 0.000 claims description 7
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 4
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical group OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000013065 commercial product Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method and application of a high-strength plastic bag material composition and a plastic bag. The high-strength plastic bag material composition comprises the following components in parts by weight: 100 parts of polyvinyl chloride, 30-70 parts of polystyrene, 10-50 parts of wood flour, 10-30 parts of asbestos fiber, 1-5 parts of antimonous oxide, 1-5 parts of stannous octoate and 10-20 parts of kaolin. Due to the design, the plastic bag made of the high-strength plastic bag material composition is relatively good in tension strength in practical use, so that the problems that the service life of the plastic bag is shortened and the use cost is increased as the plastic bag can be propped by too many articles when used are solved.
Description
Technical Field
The invention relates to the field of production and preparation of plastic bags, in particular to a high-strength plastic bag material composition, a preparation method of a plastic bag and application of the plastic bag material composition.
Background
The plastic bag is as daily necessities commonly used in daily life, its range of application is extensive, and the frequency of use is high, and often in the use, can be because of the more article of actual need splendid attire in the plastic bag to prop the plastic bag open, lead to its volume increase, at this in-process, often can lead to extremely easily propping it bad in the in-service use because of the tensile strength scheduling problem of plastic bag, lead to the unable use, make the article of splendid attire directly drop even, thereby cause the inconvenience in the use.
Therefore, the present invention provides a high strength plastic bag material composition with high tensile strength and greatly improved use performance, and a method for preparing a plastic bag.
Disclosure of Invention
Aiming at the prior art, the invention aims to overcome the problems that in the prior art, a plastic bag is very easy to be broken in the actual use process due to the fact that the plastic bag is expanded because more articles are contained in the plastic bag according to actual needs, cannot be used and even can directly drop contained articles to cause inconvenience in use because the plastic bag is very easy to be broken due to the problems of tensile strength and the like in the process, so that the high-strength plastic bag material composition and the preparation method of the plastic bag have high tensile strength and greatly improve the use performance.
In order to achieve the purpose, the invention provides a high-strength plastic bag material composition, wherein the composition comprises polyvinyl chloride, polystyrene, wood flour, asbestos fibers, antimony trioxide, stannous octoate and kaolin; wherein,
relative to 100 parts by weight of the polyvinyl chloride, the content of the polystyrene is 30-70 parts by weight, the content of the wood powder is 10-50 parts by weight, the content of the asbestos fiber is 10-30 parts by weight, the content of the antimony trioxide is 1-5 parts by weight, the content of the stannous octoate is 1-5 parts by weight, and the content of the kaolin is 10-20 parts by weight.
The invention also provides a preparation method of the high-strength plastic bag, wherein the preparation method comprises the following steps: mixing and granulating polyvinyl chloride, polystyrene, wood powder, asbestos fiber, antimony trioxide, stannous octoate and kaolin, and then blowing a film for molding to prepare a high-strength plastic bag; wherein,
the polyvinyl chloride fiber composite material comprises, by weight, 100 parts of polyvinyl chloride, 30-70 parts of polystyrene, 10-50 parts of wood powder, 10-30 parts of asbestos fiber, 1-5 parts of antimony trioxide, 1-5 parts of stannous octoate and 10-20 parts of kaolin.
The invention also provides application of the high-strength plastic bag prepared by the preparation method.
According to the technical scheme, polyvinyl chloride, polystyrene, wood powder, asbestos fibers, antimony trioxide, stannous octoate and kaolin are mixed and granulated according to a certain proportion, and then film blowing molding is carried out to prepare the plastic bag, so that the plastic bag prepared from the materials has high tensile strength in actual use, and the problems of reduced service life and increased use cost caused by the fact that the plastic bag is damaged by too many articles in the use process are further solved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a high-strength plastic bag material composition, wherein the composition comprises polyvinyl chloride, polystyrene, wood powder, asbestos fiber, antimony trioxide, stannous octoate and kaolin; wherein,
relative to 100 parts by weight of the polyvinyl chloride, the content of the polystyrene is 30-70 parts by weight, the content of the wood powder is 10-50 parts by weight, the content of the asbestos fiber is 10-30 parts by weight, the content of the antimony trioxide is 1-5 parts by weight, the content of the stannous octoate is 1-5 parts by weight, and the content of the kaolin is 10-20 parts by weight.
According to the design, polyvinyl chloride, polystyrene, wood powder, asbestos fibers, antimony trioxide, stannous octoate and kaolin are mixed according to a certain proportion and granulated and then blown to form a plastic bag, so that the plastic bag made of the materials has high tensile strength in actual use, and the problems that the service life is shortened and the use cost is increased due to the fact that the plastic bag is damaged by too many articles in the use process are further solved.
In a preferred embodiment of the present invention, in order to further improve the tensile properties of the manufactured plastic bag, the polystyrene content is 40 to 60 parts by weight, the wood flour content is 20 to 40 parts by weight, the asbestos fiber content is 15 to 25 parts by weight, the antimony trioxide content is 2 to 4 parts by weight, the stannous octoate content is 2 to 4 parts by weight, and the kaolin content is 13 to 17 parts by weight, relative to 100 parts by weight of the polyvinyl chloride.
The polyvinyl chloride may be of the type conventionally used in the art, and its physical and chemical properties may not be further limited, and of course, in a preferred embodiment of the present invention, the average degree of polymerization of the polyvinyl chloride may be further defined as 650-750.
Likewise, in another preferred embodiment of the present invention, the tensile yield strength of the polystyrene may be further selected to be not less than 30 MPa.
In a more preferred embodiment of the present invention, in order to provide better use performance and processability to the finally obtained plastic bag, and further improve the oxidation resistance and the like, the composition may further comprise a processing aid selected from one or more of an antioxidant, an opening agent, a chain extender and an initiator.
Of course, the type of antioxidant may be one conventionally employed in the art, for example, in a preferred embodiment of the present invention, the antioxidant may be selected to be pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] in order to further enhance the use properties.
Likewise, in another preferred embodiment of the present invention, the opening agent may be polyethylene wax and/or oleamide.
The invention also provides a preparation method of the high-strength plastic bag, wherein the preparation method comprises the following steps: mixing and granulating polyvinyl chloride, polystyrene, wood powder, asbestos fiber, antimony trioxide, stannous octoate and kaolin, and then blowing a film for molding to prepare a high-strength plastic bag; wherein,
the polyvinyl chloride fiber composite material comprises, by weight, 100 parts of polyvinyl chloride, 30-70 parts of polystyrene, 10-50 parts of wood powder, 10-30 parts of asbestos fiber, 1-5 parts of antimony trioxide, 1-5 parts of stannous octoate and 10-20 parts of kaolin.
In a preferred embodiment of the present invention, in order to further improve the tensile property of the manufactured plastic bag, the polystyrene is used in an amount of 40 to 60 parts by weight, the wood flour is used in an amount of 20 to 40 parts by weight, the asbestos fiber is used in an amount of 15 to 25 parts by weight, the antimony trioxide is used in an amount of 2 to 4 parts by weight, the stannous octoate is used in an amount of 2 to 4 parts by weight, and the kaolin is used in an amount of 13 to 17 parts by weight, relative to 100 parts by weight of the polyvinyl chloride.
The polyvinyl chloride and the polystyrene are as described above and will not be described in detail herein.
Of course, in another preferred embodiment of the present invention, in order to further improve the use performance and the processing performance of the plastic bag, the preparation method may further include adding a processing aid selected from one or more of an antioxidant, an opening agent, a chain extender and an initiator for mixing. The antioxidant and the opening agent are as described above and will not be described in detail herein.
The invention also provides application of the high-strength plastic bag prepared by the preparation method.
The present invention will be described in detail below by way of examples. In the following examples, the polyvinyl chloride is a commercial product of the brand name S-700 supplied by shanghai napu plastic co ltd, the polystyrene is a commercial product of the brand name 525 supplied by shanghai kaxi plastic chemical co ltd, the antioxidant is an antioxidant of the brand name 1010 supplied by Qingdao asa chemical co ltd (the component is pentaerythrityl tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], the opener is a commercial oleamide of the brand name hmanide supplied by hamamengshi chemical co ltd, the chain extender is a commercial chain extender of the patting new material E-300 supplied by foshan jinggan co ltd, the initiator is a commercial initiator of the brand name UV-819 supplied by huai am bi chemical co ltd, and the wood flour, the antimony fiber, the asbestos trioxide are obtained by the same method as described in shanghai, The stannous octoate and the kaolin are conventional commercial products.
Example 1
100g of polyvinyl chloride, 40g of polystyrene, 20g of wood powder, 15g of asbestos fibers, 2g of antimony trioxide, 2g of stannous octoate, 13g of kaolin, 1g of antioxidant, 1g of opening agent, 0.5g of chain extender and 0.1g of initiator are mixed, granulated and blown to form the high-strength plastic bag A1.
Example 2
100g of polyvinyl chloride, 60g of polystyrene, 40g of wood powder, 25g of asbestos fiber, 4g of antimony trioxide, 4g of stannous octoate, 17g of kaolin, 3g of antioxidant, 3g of opening agent, 2g of chain extender and 1g of initiator are mixed, granulated and blown to form the high-strength plastic bag A2.
Example 3
100g of polyvinyl chloride, 50g of polystyrene, 30g of wood powder, 20g of asbestos fiber, 3g of antimony trioxide, 3g of stannous octoate, 15g of kaolin, 2g of antioxidant, 2g of opening agent, 1g of chain extender and 0.5g of initiator are mixed, granulated and blown to form the high-strength plastic bag A3.
Example 4
The preparation was carried out according to the preparation method of example 1, except that 30g of polystyrene was used, 10g of wood flour was used, 10g of asbestos fiber was used, 1g of antimony trioxide was used, 1g of stannous octoate was used, 10g of kaolin was used, and no antioxidant, opening agent, spreading agent and initiator were added to prepare the high-strength plastic bag a 4.
Example 5
The preparation method is as in example 2, except that the polystyrene is used in an amount of 70g, the wood flour is used in an amount of 50g, the asbestos fiber is used in an amount of 30g, the antimony trioxide is used in an amount of 5g, the stannous octoate is used in an amount of 5g, the kaolin is used in an amount of 20g, and an antioxidant, an opening agent, a spreading agent and an initiator are not added, so that the high-strength plastic bag A5 is prepared.
Comparative example 1
The preparation was carried out according to the preparation method of example 3 except that the polystyrene was used in an amount of 10g, the wood flour was used in an amount of 5g, the asbestos fiber was used in an amount of 5g, the antimony trioxide was used in an amount of 0.5g, the stannous octoate was used in an amount of 0.5g, and the kaolin was used in an amount of 5g, to obtain a plastic bag D1.
Comparative example 2
The preparation was carried out according to the preparation method of example 3 except that the polystyrene was used in an amount of 100g, the wood flour was used in an amount of 80g, the asbestos fiber was used in an amount of 50g, the antimony trioxide was used in an amount of 10g, the stannous octoate was used in an amount of 10g, and the kaolin was used in an amount of 40g, to obtain a plastic bag D2.
Comparative example 3
And (3) granulating pure polyvinyl chloride, and then blowing a film for molding to obtain the plastic bag D3.
Test example
The tensile strength and elongation at break of A1-A5 and D1-D3 prepared above were measured according to GB/T1040.2, respectively, and the results are shown in Table 1.
TABLE 1
| Numbering | Tensile Strength (MPa) | Elongation at Break (%) |
| A1 | 56.2 | 360 |
| A2 | 52.3 | 358 |
| A3 | 51.6 | 376 |
| A4 | 32.6 | 215 |
| A5 | 33.1 | 223 |
| D1 | 13.5 | 125 |
| D2 | 15.6 | 153 |
| D3 | 12.1 | 110 |
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A high-strength plastic bag material composition is characterized by comprising polyvinyl chloride, polystyrene, wood powder, asbestos fiber, antimony trioxide, stannous octoate and kaolin; wherein,
relative to 100 parts by weight of the polyvinyl chloride, the content of the polystyrene is 30-70 parts by weight, the content of the wood powder is 10-50 parts by weight, the content of the asbestos fiber is 10-30 parts by weight, the content of the antimony trioxide is 1-5 parts by weight, the content of the stannous octoate is 1-5 parts by weight, and the content of the kaolin is 10-20 parts by weight.
2. The composition as claimed in claim 1, wherein the polystyrene is contained in an amount of 40 to 60 parts by weight, the wood flour is contained in an amount of 20 to 40 parts by weight, the asbestos fiber is contained in an amount of 15 to 25 parts by weight, the antimony trioxide is contained in an amount of 2 to 4 parts by weight, the stannous octoate is contained in an amount of 2 to 4 parts by weight, and the kaolin is contained in an amount of 13 to 17 parts by weight, relative to 100 parts by weight of the polyvinyl chloride.
3. The composition as claimed in claim 1 or 2, wherein the polyvinyl chloride has an average degree of polymerization of 650-750;
the tensile yield strength of the polystyrene is not lower than 30 MPa.
4. The composition of claim 1 or 2, wherein the composition further comprises a processing aid selected from one or more of an antioxidant, a opener, a chain extender, and an initiator.
5. The composition of claim 4, wherein the antioxidant is pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ];
the opening agent is polyethylene wax and/or oleamide.
6. A preparation method of a high-strength plastic bag is characterized by comprising the following steps: mixing and granulating polyvinyl chloride, polystyrene, wood powder, asbestos fiber, antimony trioxide, stannous octoate and kaolin, and then blowing a film for molding to prepare a high-strength plastic bag; wherein,
the polyvinyl chloride fiber composite material comprises, by weight, 100 parts of polyvinyl chloride, 30-70 parts of polystyrene, 10-50 parts of wood powder, 10-30 parts of asbestos fiber, 1-5 parts of antimony trioxide, 1-5 parts of stannous octoate and 10-20 parts of kaolin.
7. The preparation method according to claim 6, wherein the polystyrene is used in an amount of 40 to 60 parts by weight, the wood flour is used in an amount of 20 to 40 parts by weight, the asbestos fiber is used in an amount of 15 to 25 parts by weight, the antimony trioxide is used in an amount of 2 to 4 parts by weight, the stannous octoate is used in an amount of 2 to 4 parts by weight, and the kaolin is used in an amount of 13 to 17 parts by weight, relative to 100 parts by weight of the polyvinyl chloride.
8. The production method according to claim 6 or 7, wherein the polyvinyl chloride has an average polymerization degree of 650-750;
the tensile yield strength of the polystyrene is not lower than 30 MPa.
9. The preparation method according to claim 6 or 7, wherein the preparation method further comprises adding a processing aid for mixing, wherein the processing aid is selected from one or more of an antioxidant, a mouth-opening agent, a chain extender and an initiator; wherein,
the antioxidant is tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester;
the opening agent is polyethylene wax and/or oleamide.
10. Use of a high-strength plastic bag produced by the method according to any one of claims 6 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107964189A (en) * | 2017-12-14 | 2018-04-27 | 全椒县三安塑业有限公司 | A kind of preparation method of low smell plastic bag |
| CN108690361A (en) * | 2018-06-21 | 2018-10-23 | 上海赫得环境科技股份有限公司 | A kind of preparation method of edible polybag |
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| CN105061947A (en) * | 2015-08-17 | 2015-11-18 | 苏州凯欧曼新材料科技有限公司 | Stretch-resistant and break-resistant composite PVC material and preparation method thereof |
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