CN111718534A - High-tensile high-strength PE (polyethylene) winding film and preparation method thereof - Google Patents
High-tensile high-strength PE (polyethylene) winding film and preparation method thereof Download PDFInfo
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- CN111718534A CN111718534A CN202010509600.6A CN202010509600A CN111718534A CN 111718534 A CN111718534 A CN 111718534A CN 202010509600 A CN202010509600 A CN 202010509600A CN 111718534 A CN111718534 A CN 111718534A
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 128
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 112
- 238000004804 winding Methods 0.000 title claims abstract description 74
- -1 polyethylene Polymers 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title description 8
- 239000002994 raw material Substances 0.000 claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 24
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 24
- 239000002134 carbon nanofiber Substances 0.000 claims abstract description 18
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 16
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 15
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 15
- 239000004945 silicone rubber Substances 0.000 claims abstract description 15
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 14
- 239000003549 soybean oil Substances 0.000 claims abstract description 14
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 14
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- VNQNDUWTYJKINF-UHFFFAOYSA-N n'-(2-aminoethyl)ethane-1,2-diamine;octadecanamide Chemical compound NCCNCCN.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O VNQNDUWTYJKINF-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 7
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical group CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000010345 tape casting Methods 0.000 claims description 6
- 239000012856 weighed raw material Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000003017 thermal stabilizer Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004711 α-olefin Substances 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
-
- 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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- 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
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
-
- 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
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
Abstract
The invention discloses a high-tensile high-strength PE (polyethylene) winding film which is prepared from the following raw materials in parts by weight: 55-70 parts of polyethylene, 10-16 parts of ultrahigh molecular weight polyethylene, 12-17 parts of ethylene propylene diene monomer, 5-7 parts of methyl vinyl silicone rubber, 4-6 parts of oxidized polyethylene, 6-8 parts of fumed silica and carbon nanofibers, 2.5-4 parts of epoxidized soybean oil, 3-5 parts of a heat stabilizer and 2-3 parts of an antioxidant. The high-tensile high-strength PE winding film disclosed by the invention is high in tensile strength, large in elongation at break, good in toughness, excellent in mechanical property and good in market application prospect, and has the characteristics of high tensile strength.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-tensile high-strength PE (polyethylene) winding film and a preparation method thereof.
Background
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. The polyethylene is odorless and nontoxic, feels like wax, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), has good chemical stability, and can resist corrosion of most of acid and alkali (cannot resist acid with oxidation property). Is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation.
The PE stretch film (also called as a winding film) has higher tensile strength and tearing strength and good self-adhesion, so that objects can be wrapped into a whole to prevent the objects from scattering and collapsing during transportation. The film has excellent transparency. The wrapped object is beautiful and elegant, and can prevent water, dust and damage. The film is widely used for packaging goods trays, such as the bundling and packaging in the industries of electronics, building materials, chemical industry, metal products, automobile accessories, wires and cables, daily necessities, food, paper making and the like. Specification: the machine film width is 500mm, the manual film width is 300mm,350mm,450mm,500mm and the thickness is 15um-50um., and various specifications can be cut on line. The viscosity is divided into single-sided viscosity and double-sided viscosity, and products are divided into two series of manual winding films and machine winding films.
However, the PE wrap films currently used have the following problems:
1. the tensile strength is low, the mechanical property is poor, and the damage is easy to occur in the process of stretching or using;
2. the elongation at break and the tensile strength can not be well considered, so that the strength is improved, but the toughness is deteriorated, the mechanical property is poor, and the damage is easy to occur in the process of stretching or using.
Based on the situation, the invention provides the high-tensile high-strength PE winding film and the preparation method thereof, and the problems can be effectively solved.
Disclosure of Invention
The invention aims to provide a high-tensile high-strength PE winding film and a preparation method thereof. The high-tensile high-strength PE winding film is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyethylene, ultrahigh molecular weight polyethylene, ethylene propylene diene monomer, methyl vinyl silicone rubber, oxidized polyethylene, fumed silica, nano carbon fiber, epoxidized soybean oil, a heat stabilizer and the like in a proper ratio; the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, the use types of the raw materials are reduced, the raw material cost is optimized, the quality stability of the product is improved, the prepared high-tensile high-strength PE winding film is high in tensile strength, large in elongation at break, good in toughness, high in tensile strength, excellent in mechanical property and good in market application prospect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
55-70 parts of polyethylene, 10-16 parts of ultrahigh molecular weight polyethylene, 12-17 parts of ethylene propylene diene monomer, 5-7 parts of methyl vinyl silicone rubber, 4-6 parts of oxidized polyethylene, 6-8 parts of fumed silica and carbon nanofibers, 2.5-4 parts of epoxidized soybean oil, 3-5 parts of a heat stabilizer and 2-3 parts of an antioxidant.
The high-tensile high-strength PE winding film is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyethylene, ultrahigh molecular weight polyethylene, ethylene propylene diene monomer, methyl vinyl silicone rubber, oxidized polyethylene, fumed silica, nano carbon fiber, epoxidized soybean oil, a heat stabilizer and the like in a proper ratio; the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, the use types of the raw materials are reduced, the raw material cost is optimized, the quality stability of the product is improved, the prepared high-tensile high-strength PE winding film is high in tensile strength, large in elongation at break, good in toughness, high in tensile strength, excellent in mechanical property and good in market application prospect.
Preferably, the high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
63 parts of polyethylene, 13 parts of ultrahigh molecular weight polyethylene, 14.5 parts of ethylene propylene diene monomer, 6 parts of methyl vinyl silicone rubber, 5 parts of oxidized polyethylene, 7 parts of fumed silica and nano carbon fiber, 3.3 parts of epoxidized soybean oil, 4 parts of heat stabilizer and 2.5 parts of antioxidant.
Preferably, the polyethylene is a metallocene linear low density polyethylene.
Preferably, the ultrahigh molecular weight polyethylene is unbranched linear polyethylene with the molecular weight of 155-165 ten thousand.
Preferably, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica and the carbon nanofibers is 10: (4.5-6.4).
Preferably, the heat stabilizer is a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
Preferably, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate is 10: (13-17).
Preferably, the antioxidant is antioxidant 168.
The invention also provides a preparation method of the high-tensile high-strength PE winding film, which comprises the following steps:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature of the first zone is 180-185 ℃, the temperature of the second zone is 180-185 ℃, the temperature of the third zone is 185-188 ℃, the temperature of the fourth zone is 190-192 ℃, the temperature of the fifth zone is 195-200 ℃, the temperature of the sixth zone is 202-206 ℃, the temperature of the seventh zone is 205-210 ℃ and the temperature of the eighth zone is 208-212 ℃.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the high-tensile high-strength PE winding film is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyethylene, ultrahigh molecular weight polyethylene, ethylene propylene diene monomer, methyl vinyl silicone rubber, oxidized polyethylene, fumed silica, nano carbon fiber, epoxidized soybean oil, a heat stabilizer and the like in a proper ratio; the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, the use types of the raw materials are reduced, the raw material cost is optimized, the quality stability of the product is improved, the prepared high-tensile high-strength PE winding film is high in tensile strength, large in elongation at break, good in toughness, high in tensile strength, excellent in mechanical property and good in market application prospect.
The invention introduces proper proportion
Polyethylene as a main raw material; preferably, the polyethylene is a metallocene linear low density polyethylene. The high-tensile high-strength PE winding film has the advantages that the molecular weight distribution is wide, the processing fluidity is good, the processing performance of the ultra-high molecular weight polyethylene can be improved by matching with the ultra-high molecular weight polyethylene, and the high-tensile high-strength PE winding film is high in tensile strength, large in elongation at break and good in toughness;
the polyethylene with ultrahigh molecular weight is preferably unbranched linear polyethylene with the molecular weight of 155-165 ten thousand. The high-tensile high-strength PE winding film is mainly used for improving the mechanical properties such as the tensile strength, the elongation at break and the like of the high-tensile high-strength PE winding film, the polyethylene is matched with the ultrahigh molecular weight polyethylene, the processability of the ultrahigh molecular weight polyethylene can be improved, and the high-tensile high-strength PE winding film is ensured to have high tensile strength, large elongation at break and good toughness;
the ethylene propylene diene monomer mainly plays a good toughening role, has good compatibility in the raw material system, further ensures that the high-tensile high-strength PE winding film has high tensile strength, large elongation at break and good toughness;
the methyl vinyl silicone rubber mainly plays a role in toughening and reinforcing, has excellent low temperature resistance and other properties, has good compatibility in the raw material system, and further ensures that the high-tensile high-strength PE winding film has high tensile strength, large elongation at break and good toughness;
the oxidized polyethylene mainly plays a role in compatibilization, improves the compatibility of components such as polyethylene, ultrahigh molecular weight polyethylene, ethylene propylene diene monomer, methyl vinyl silicone rubber and the like, ensures that interfaces of the components are directly and tightly combined, and further ensures that the high-tensile high-strength PE winding film has high tensile strength, large elongation at break and good toughness;
fumed silica and carbon nanofibers, preferably, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica to the carbon nanofibers is 10: (4.5-6.4). The two materials are mutually matched to mainly play a good role in cooperative reinforcement, so that the tensile strength of the high-tensile high-strength PE winding film is greatly improved, and the high tensile strength of the high-tensile high-strength PE winding film is further ensured.
The epoxidized soybean oil mainly plays a role in plasticization and improves processing fluidity, and is a macromolecule, so that the high-tensile high-strength PE winding film disclosed by the invention is not easy to migrate to the surface of the film in the later use process, and the durability and durability of the mechanical property of the high-tensile high-strength PE winding film disclosed by the invention are further ensured.
A heat stabilizer, preferably a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate. Preferably, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate is 10: (13-17). The high-tensile high-strength PE winding film and the high-tensile high-strength PE winding film are matched with each other to mainly play a good synergistic effect, so that the high-tensile high-strength PE winding film is effectively prevented from being aged by thermal oxidation and the like in the processing process, and the high-tensile high-strength PE winding film is further ensured to have high tensile strength, large elongation at break and good toughness; and the high-tensile high-strength PE winding film can be effectively prevented from aging such as thermal oxidation and the like in the processing process in the later use process, so that the durability and the durability of the mechanical property of the high-tensile high-strength PE winding film are ensured.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
a high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
55-70 parts of polyethylene, 10-16 parts of ultrahigh molecular weight polyethylene, 12-17 parts of ethylene propylene diene monomer, 5-7 parts of methyl vinyl silicone rubber, 4-6 parts of oxidized polyethylene, 6-8 parts of fumed silica and carbon nanofibers, 2.5-4 parts of epoxidized soybean oil, 3-5 parts of a heat stabilizer and 2-3 parts of an antioxidant.
Preferably, the high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
63 parts of polyethylene, 13 parts of ultrahigh molecular weight polyethylene, 14.5 parts of ethylene propylene diene monomer, 6 parts of methyl vinyl silicone rubber, 5 parts of oxidized polyethylene, 7 parts of fumed silica and nano carbon fiber, 3.3 parts of epoxidized soybean oil, 4 parts of heat stabilizer and 2.5 parts of antioxidant.
Preferably, the polyethylene is a metallocene linear low density polyethylene.
Preferably, the ultrahigh molecular weight polyethylene is unbranched linear polyethylene with the molecular weight of 155-165 ten thousand.
Preferably, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica and the carbon nanofibers is 10: (4.5-6.4).
Preferably, the heat stabilizer is a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
Preferably, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate is 10: (13-17).
Preferably, the antioxidant is antioxidant 168.
The invention also provides a preparation method of the high-tensile high-strength PE winding film, which comprises the following steps:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature of the first zone is 180-185 ℃, the temperature of the second zone is 180-185 ℃, the temperature of the third zone is 185-188 ℃, the temperature of the fourth zone is 190-192 ℃, the temperature of the fifth zone is 195-200 ℃, the temperature of the sixth zone is 202-206 ℃, the temperature of the seventh zone is 205-210 ℃ and the temperature of the eighth zone is 208-212 ℃.
Example 2:
a high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
55 parts of polyethylene, 10 parts of ultrahigh molecular weight polyethylene, 12 parts of ethylene propylene diene monomer, 5 parts of methyl vinyl silicone rubber, 4 parts of oxidized polyethylene, 6 parts of fumed silica and carbon nanofibers, 2.5 parts of epoxidized soybean oil, 3 parts of a heat stabilizer and 2 parts of an antioxidant.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this embodiment, the ultra-high molecular weight polyethylene is unbranched linear polyethylene having a molecular weight of 155 to 165 ten thousand.
In this embodiment, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica and the carbon nanofibers is 10: 4.5.
in this example, the thermal stabilizer was a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
In this example, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate had a weight ratio of 10: 13.
in this example, the antioxidant is antioxidant 168.
In this embodiment, the method for preparing the high tensile strength PE winding film includes the following steps:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature in the first zone is 180 ℃, the temperature in the second zone is 180 ℃, the temperature in the third zone is 185 ℃, the temperature in the fourth zone is 190 ℃, the temperature in the fifth zone is 195 ℃, the temperature in the sixth zone is 202 ℃, the temperature in the seventh zone is 205 ℃ and the temperature in the eighth zone is 208 ℃.
Example 3:
a high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
70 parts of polyethylene, 16 parts of ultra-high molecular weight polyethylene, 17 parts of ethylene propylene diene monomer, 7 parts of methyl vinyl silicone rubber, 6 parts of oxidized polyethylene, 8 parts of fumed silica and nano carbon fiber, 4 parts of epoxidized soybean oil, 5 parts of heat stabilizer and 3 parts of antioxidant.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this embodiment, the ultra-high molecular weight polyethylene is unbranched linear polyethylene having a molecular weight of 155 to 165 ten thousand.
In this embodiment, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica and the carbon nanofibers is 10: 6.4.
in this example, the thermal stabilizer was a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
In this example, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate had a weight ratio of 10: 17.
in this example, the antioxidant is antioxidant 168.
In this embodiment, the method for preparing the high tensile strength PE winding film includes the following steps:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature in the first zone is 185 ℃, the temperature in the second zone is 185 ℃, the temperature in the third zone is 188 ℃, the temperature in the fourth zone is 192 ℃, the temperature in the fifth zone is 200 ℃, the temperature in the sixth zone is 206 ℃, the temperature in the seventh zone is 210 ℃ and the temperature in the eighth zone is 212 ℃.
Example 4:
a high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
63 parts of polyethylene, 13 parts of ultrahigh molecular weight polyethylene, 14.5 parts of ethylene propylene diene monomer, 6 parts of methyl vinyl silicone rubber, 5 parts of oxidized polyethylene, 7 parts of fumed silica and nano carbon fiber, 3.3 parts of epoxidized soybean oil, 4 parts of heat stabilizer and 2.5 parts of antioxidant.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this embodiment, the ultra-high molecular weight polyethylene is unbranched linear polyethylene having a molecular weight of 155 to 165 ten thousand.
In this embodiment, the mass ratio of the fumed silica to the carbon nanofibers in the fumed silica and the carbon nanofibers is 10: 5.6.
in this example, the thermal stabilizer was a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
In this example, the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate had a weight ratio of 10: 15.
in this example, the antioxidant is antioxidant 168.
In this embodiment, the method for preparing the high tensile strength PE winding film includes the following steps:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature in the first zone is 182 ℃, the temperature in the second zone is 183 ℃, the temperature in the third zone is 186 ℃, the temperature in the fourth zone is 191 ℃, the temperature in the fifth zone is 197 ℃, the temperature in the sixth zone is 204 ℃, the temperature in the seventh zone is 208 ℃ and the temperature in the eighth zone is 210 ℃.
The following performance tests were performed on the high tensile strength PE wrap films obtained in examples 2 to 4 of the present invention and the ordinary PE wrap film, respectively, and the test results are shown in table 1:
TABLE 1
As can be seen from the above table, the high tensile and high strength PE winding film of the present invention has the following advantages:
the high-strength high-tenacity high-tensile-strength high-tenacity high.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (9)
1. The high-tensile high-strength PE winding film is characterized by being prepared from the following raw materials in parts by weight:
55-70 parts of polyethylene, 10-16 parts of ultrahigh molecular weight polyethylene, 12-17 parts of ethylene propylene diene monomer, 5-7 parts of methyl vinyl silicone rubber, 4-6 parts of oxidized polyethylene, 6-8 parts of fumed silica and carbon nanofibers, 2.5-4 parts of epoxidized soybean oil, 3-5 parts of a heat stabilizer and 2-3 parts of an antioxidant.
2. The high-tensile high-strength PE winding film according to claim 1, wherein the high-tensile high-strength PE winding film is prepared from the following raw materials in parts by weight:
63 parts of polyethylene, 13 parts of ultrahigh molecular weight polyethylene, 14.5 parts of ethylene propylene diene monomer, 6 parts of methyl vinyl silicone rubber, 5 parts of oxidized polyethylene, 7 parts of fumed silica and nano carbon fiber, 3.3 parts of epoxidized soybean oil, 4 parts of heat stabilizer and 2.5 parts of antioxidant.
3. The high tensile strength PE winding film according to claim 1 wherein the polyethylene is metallocene linear low density polyethylene.
4. The high-tensile high-strength PE winding film according to claim 1, wherein the ultra-high molecular weight polyethylene is unbranched linear polyethylene with a molecular weight of 155-165 ten thousand.
5. The high tensile strength PE winding film according to claim 1, wherein the mass ratio of the fumed silica to the filamentous nanocarbon in the fumed silica and the filamentous nanocarbon is 10: (4.5-6.4).
6. The high tensile strength PE winding film according to claim 1 wherein the thermal stabilizer is a mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate.
7. The high tensile strength PE winding film of claim 6 wherein the mixture of diethylenetriamine bis stearamide and dibutyltin dilaurate is 10: (13-17).
8. The high tensile strength PE wound film according to claim 1, wherein the antioxidant is antioxidant 168.
9. A method for preparing a high tensile strength PE winding film according to any one of claims 1 to 8, comprising the steps of:
A. respectively weighing the raw materials of the high-tensile high-strength PE winding film for later use;
B. uniformly mixing the weighed raw materials of the high-tensile high-strength PE winding film, putting the raw materials into a double-screw extruder, carrying out melt extrusion, carrying out tape casting through a casting machine to form a film, and cooling to obtain the high-tensile high-strength PE winding film;
wherein the twin-screw extruder has 8 temperature zones, respectively: the temperature of the first zone is 180-185 ℃, the temperature of the second zone is 180-185 ℃, the temperature of the third zone is 185-188 ℃, the temperature of the fourth zone is 190-192 ℃, the temperature of the fifth zone is 195-200 ℃, the temperature of the sixth zone is 202-206 ℃, the temperature of the seventh zone is 205-210 ℃ and the temperature of the eighth zone is 208-212 ℃.
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| CN114031840A (en) * | 2021-12-01 | 2022-02-11 | 江苏弘奇金属科技有限公司 | High-temperature-resistant anti-puncture winding film and production process thereof |
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