CN114953681A - High-heat-shrinkage-resistant polyethylene film and preparation method thereof - Google Patents
High-heat-shrinkage-resistant polyethylene film and preparation method thereof Download PDFInfo
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- CN114953681A CN114953681A CN202210815509.6A CN202210815509A CN114953681A CN 114953681 A CN114953681 A CN 114953681A CN 202210815509 A CN202210815509 A CN 202210815509A CN 114953681 A CN114953681 A CN 114953681A
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 86
- -1 polyethylene Polymers 0.000 title claims abstract description 84
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title abstract description 3
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 27
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 27
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 23
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 23
- 150000004756 silanes Chemical class 0.000 claims abstract description 17
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 14
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000010101 extrusion blow moulding Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 16
- 239000000155 melt Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 239000004595 color masterbatch Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 238000004132 cross linking Methods 0.000 abstract description 6
- 238000000071 blow moulding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 34
- 239000010426 asphalt Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
The invention relates to a high heat-resistant shrinkage polyethylene film and a preparation method thereof, wherein an outer layer adopts unsaturated silane grafted polyethylene and high-density polyethylene (7000F/6888), an inner layer adopts high-density polyethylene (7000F/6888), linear low-density polyethylene 7042 and mica master batch (more than 800 meshes), a bottom layer adopts high-density polyethylene (7000F/6888), linear low-density polyethylene 7042, HDPE5200B and mica master batch (more than 800 meshes), the three layers are formed by co-extrusion blow molding, and after film forming, the outer layer adopts steam crosslinking. The invention adopts the method that the unsaturated silane grafted polyethylene is mixed with the polyethylene 7000F and the mica master batch (more than 800 meshes) and the three-layer coextrusion blow molding is adopted to prepare the high heat-resistant shrinkable polyethylene film, and has the characteristics of improving the mechanical property and the heat shrinkage property of the material.
Description
Technical Field
The invention belongs to the technical field of polyethylene isolating film production, and particularly relates to a method for preparing a high heat-resistant shrinkage polyethylene film by mixing unsaturated silane grafted polyethylene, polyethylene 7000F and mica master batch (more than 800 meshes) and adopting three-layer co-extrusion blow molding.
Background
Release films are also known as barrier films. In order to increase the release force of the plastic film, the plastic film is coated with a silicon (silicone) release agent on the surface layer of the film material, such as PET or PE; so that it can exhibit an extremely light and stable releasing force to asphalt.
Polyethylene is one of the main plastic raw materials in five general-purpose plastics, and has poor high-temperature resistance. The PE isolating film has the advantages of soft material, high elongation, flat and attractive appearance of a produced coiled material, high dry silicon content, small stripping risk, recoverability, environmental friendliness, poor ageing resistance, high environmental temperature and strong illumination especially in summer, and the exposed outdoor film surface is easy to yellow and asphalt viscosity is quickly reduced or even completely lost after long-time storage or construction.
Meanwhile, the high-temperature heat-resistant shrinkage resistance of polyethylene is poor, so that the asphalt temperature needs to be reduced for bonding, the process of the self-adhesive asphalt waterproof coiled material is complex, the cost is increased, and the improvement of the high-temperature heat-resistant shrinkage resistance of the polyethylene isolating membrane is very important.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a high heat-resistant shrinkage polyethylene film, wherein the heat shrinkage at 110 ℃ is reduced to be less than 1.5%, the longitudinal tensile strength is improved by 10% to be more than 30MPa, the transverse tensile strength is more than 20MPa, the outer layer adopts unsaturated silane grafted polyethylene and high-density polyethylene (7000F/6888), the inner layer adopts high-density polyethylene (7000F/6888), linear low-density polyethylene 7042 and mica master batch (more than 800 meshes), the bottom layer adopts high-density polyethylene (7000F/6888), linear low-density polyethylene 7042, HDPE5200B and mica master batch (more than 800 meshes), the three layers are formed by co-extrusion blow molding, and after film forming, the outer layer adopts steam crosslinking.
It is preferable that: in the outer layer, the mass portions of the unsaturated silane grafted polyethylene and the high-density polyethylene (7000F/6888) are respectively 2-5 parts and 5-8 parts.
It is preferable that: the inner layer is made of 3-6 parts of high-density polyethylene (7000F/6888), 7042 parts of linear low-density polyethylene and 1-2 parts of mica master batch (above 800 meshes) by mass.
It is preferable that: the bottom layer is made of 3-6 parts of high-density polyethylene (7000F/6888), 1-3 parts of linear low-density polyethylene 7042, 1-3 parts of HDPE5200B and 1-2 parts of mica master batch (more than 800 meshes) by mass.
It is preferable that: the high density polyethylene (7000F/6888) was polyethylene 7000F, and the linear low density polyethylene 7042 was polyethylene 7042.
The invention adopts the method of mixing unsaturated silane grafted polyethylene with polyethylene 7000F and mica master batch (more than 800 meshes) and adopting three-layer co-extrusion blow molding to prepare the high heat-resistant shrinkable polyethylene film, and has the characteristics of improving the mechanical property and the heat-shrinkable property of the material.
Another object of the present invention is to provide a method for preparing the above high heat shrinkable polyethylene film, comprising the steps of:
firstly, mixing 2-5 parts of unsaturated silane grafted polyethylene, 5-8 parts of polyethylene 7000F and 0.01-1 part of color master batch, drying and feeding into an outer layer extruder, wherein the melt extrusion temperature is 200-280 ℃;
secondly, feeding 3-6 parts of polyethylene 7000F, 1-3 parts of polyethylene 7042 and 1-2 parts of mica master batch (more than 800 meshes) into an inner layer extruder in a drying way, wherein the melt extrusion temperature is 200-280 ℃;
thirdly, mixing 3-6 parts of polyethylene 7000F, 1-3 parts of polyethylene 7042, 1-3 parts of HDPE5200B and 1-2 parts of mica master batch (above 800 meshes), drying and feeding the mixture into a bottom layer extruder, wherein the melt extrusion temperature is 200-280 ℃;
fourthly, the blower is started, and the outlet air speed is 0.01-2m 3 And/s, the rolling speed is 0.1-1m/s, the outer layer is sprayed with hot steam, dried and rolled to obtain the high heat-resistant shrinkable polyethylene film.
According to the invention, unsaturated silane grafted polyethylene and polyethylene 7000F are subjected to composite drying, extrusion and film forming, and then steam crosslinking is adopted, so that the increase of the surface strength of the film is improved, and the mechanical property and the heat shrinkage property of the material are improved; the rigidity and heat resistance of the film are improved by mixing polyethylene 7000F with polyethylene 7042, HDPE5200B and mica master batch (above 800 meshes) and extruding from the inner layer and the bottom layer. The polyethylene film prepared by the method has the advantages that the thermal shrinkage at 110 ℃ is reduced to less than 1.5%, the longitudinal tensile strength is improved by 10% and is more than 30MPa, the transverse tensile strength is more than 20MPa, the elongation at break is more than 320%, and the tearing strength is more than 150 kN/m.
Detailed Description
The production process of the present invention will be described in further detail with reference to examples.
Example one
Firstly, mixing 2 parts of unsaturated silane grafted polyethylene, 8 parts of polyethylene 7000F and 0.5 part of color master batch, drying and feeding into an outer layer extruder, wherein the melt extrusion temperature is 270 ℃;
secondly, feeding 3 parts of polyethylene 7000F, 3 parts of polyethylene 7042 and 2 parts of mica master batch (above 800 meshes) into an inner layer extruder in a drying mode, wherein the melt extrusion temperature is 260 ℃;
thirdly, mixing 3 parts of polyethylene 7000F, 3 parts of polyethylene 7042, 3 parts of HDPE5200B and 2 parts of mica master batch (above 800 meshes), drying and feeding into a bottom layer extruder, wherein the melt extrusion temperature is 260 ℃;
fourthly, the blower is started, and the outlet air speed is 0.5m 3 And/s, the rolling speed is 0.5m/s, the outer layer is sprayed with hot steam, dried and rolled to obtain the high heat-resistant shrinkable polyethylene film.
Because the unsaturated silane grafted polyethylene and the polyethylene 7000F are compounded, dried, extruded and subjected to steam crosslinking after film forming, the surface strength of the film is improved, and the mechanical property and the heat shrinkage property of the material are improved; the polyethylene 7000F is mixed with polyethylene 7042, HDPE5200B and mica masterbatch (above 800 meshes) and extruded from the inner layer and the bottom layer, so that the rigidity and heat resistance of the film are increased. The polyethylene film prepared by the method has the advantages that the thermal shrinkage at 110 ℃ is reduced to 1.2%, the longitudinal tensile strength is more than 30MPa, the transverse tensile strength is more than 20MPa, the elongation at break is 336%, and the tear strength is 156 kN/m.
Example two
Firstly, mixing 5 parts of unsaturated silane grafted polyethylene, 5 parts of polyethylene 7000F and 0.2 part of color master batch, drying and feeding the mixture into an outer layer extruder, wherein the melt extrusion temperature is 280 ℃;
secondly, feeding 6 parts of polyethylene 7000F, 1 part of polyethylene 7042 and 1 part of mica master batch (more than 800 meshes) into an inner layer extruder in a drying mode, wherein the melt extrusion temperature is 270 ℃;
thirdly, mixing 6 parts of polyethylene 7000F, 1 part of polyethylene 7042, 1 part of HDPE5200B and 1 part of mica master batch (above 800 meshes), drying and feeding into a bottom layer extruder, wherein the melt extrusion temperature is 270 ℃;
fourthly, the blower is started, and the outlet wind speed is 1m 3 And/s, the rolling speed is 0.3m/s, the outer layer is sprayed with hot steam, dried and rolled to obtain the high heat-resistant shrinkable polyethylene film.
Because the unsaturated silane grafted polyethylene and the polyethylene 7000F are compounded, dried, extruded and subjected to steam crosslinking after film forming, the surface strength of the film is improved, and the mechanical property and the heat shrinkage property of the material are improved; the rigidity and heat resistance of the film are improved by mixing polyethylene 7000F with polyethylene 7042, HDPE5200B and mica master batch (above 800 meshes) and extruding from the inner layer and the bottom layer. The polyethylene film prepared by the method has the advantages that the thermal shrinkage at 110 ℃ is reduced to 1.3%, the longitudinal tensile strength is more than 30MPa, the transverse tensile strength is more than 20MPa, the elongation at break is 324%, and the tear strength is 150 kN/m.
EXAMPLE III
Firstly, mixing 3 parts of unsaturated silane grafted polyethylene, 6 parts of polyethylene 7000F and 0.8 part of color master batch, drying and feeding into an outer layer extruder, wherein the melt extrusion temperature is 260 ℃;
secondly, feeding 5 parts of polyethylene 7000F, 1.5 parts of polyethylene 7042 and 1.5 parts of mica master batch (more than 800 meshes) into an inner layer extruder in a drying way, wherein the melt extrusion temperature is 260 ℃;
and thirdly, mixing 5 parts of polyethylene 7000F, 1.5 parts of polyethylene 7042, 1.5 parts of HDPE5200B and 1 part of mica master batch (above 800 meshes), drying, and feeding into a bottom layer extruder at the melt extrusion temperature of 260 ℃.
Fourthly, the blower is started, and the wind speed at the outlet is 2m 3 And/s, the winding speed is 1m/s, the outer layer is sprayed with hot steam, dried and wound to obtain the high heat-resistant shrinkable polyethylene film.
Because the unsaturated silane grafted polyethylene and the polyethylene 7000F are compounded, dried, extruded and subjected to steam crosslinking after film forming, the surface strength of the film is improved, and the mechanical property and the heat shrinkage property of the material are improved; the rigidity and heat resistance of the film are improved by mixing polyethylene 7000F with polyethylene 7042, HDPE5200B and mica master batch (above 800 meshes) and extruding from the inner layer and the bottom layer. The polyethylene film prepared by the method has the advantages that the thermal shrinkage at 110 ℃ is reduced to less than 1.4 percent, the longitudinal tensile strength is more than 30MPa, the transverse tensile strength is more than 20MPa, the elongation at break is 326 percent, and the tear strength is 152 kN/m.
Claims (7)
1. A high heat-resistant shrinkable polyethylene film characterized by: the outer layer is made of unsaturated silane grafted polyethylene and high-density polyethylene, the inner layer is made of high-density polyethylene, linear low-density polyethylene and mica master batch, the bottom layer is made of high-density polyethylene, linear low-density polyethylene, HDPE and mica master batch, the three layers are formed by co-extrusion blow molding, and after film forming, the outer layer is steam crosslinked.
2. The high heat shrink resistant polyethylene film of claim 1 wherein: in the outer layer, the mass portions of the unsaturated silane grafted polyethylene and the high-density polyethylene are respectively 2-5 portions and 5-8 portions.
3. The high heat shrink resistant polyethylene film of claim 1 wherein: the inner layer is made of 3-6 parts of high-density polyethylene, 1-3 parts of linear low-density polyethylene and 1-2 parts of mica master batch by mass.
4. The high heat shrink resistant polyethylene film of claim 1 wherein: the bottom layer is made of 3-6 parts of high-density polyethylene, 1-3 parts of linear low-density polyethylene, 1-3 parts of HDPE and 1-2 parts of mica master batch by mass.
5. The high heat shrink resistant polyethylene film of claim 1 wherein: the high density polyethylene was polyethylene 7000F and the linear low density polyethylene was polyethylene 7042.
6. The high heat shrink resistant polyethylene film of claim 1 wherein: the thermal shrinkage at 110 ℃ is reduced to less than 1.5 percent, the longitudinal tensile strength is more than 30MPa, and the transverse tensile strength is more than 20 MPa.
7. A process for preparing a polyethylene film according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
firstly, mixing 2-5 parts of unsaturated silane grafted polyethylene, 5-8 parts of high-density polyethylene and 0.01-1 part of color master batch, drying and feeding the mixture into an outer layer extruder, wherein the melt extrusion temperature is 200-;
secondly, feeding 3-6 parts of high-density polyethylene, 1-3 parts of linear low-density polyethylene 7042 and 1-2 parts of mica master batch into an inner layer extruder in a drying mode, wherein the melt extrusion temperature is 200-280 ℃;
thirdly, mixing 3-6 parts of high-density polyethylene, 1-3 parts of linear low-density polyethylene, 1-3 parts of HDPE and 1-2 parts of mica master batch, drying and feeding into a bottom layer extruder, wherein the melt extrusion temperature is 200-280 ℃;
fourthly, the blower is started, and the outlet wind speed is 0.01 to 2m 3 And/s, the rolling speed is 0.1-1m/s, the outer layer is sprayed with hot steam, dried and rolled to obtain the high heat-resistant shrinkable polyethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815509.6A CN114953681A (en) | 2022-07-11 | 2022-07-11 | High-heat-shrinkage-resistant polyethylene film and preparation method thereof |
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| CN202210815509.6A CN114953681A (en) | 2022-07-11 | 2022-07-11 | High-heat-shrinkage-resistant polyethylene film and preparation method thereof |
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| JP2008055261A (en) * | 2006-08-29 | 2008-03-13 | Kao Corp | Manufacturing method of composite particles |
| US20090117455A1 (en) * | 2005-09-28 | 2009-05-07 | Tonen Chemical Corporation | Multi-layer, microporous polyethylene membrane, its production method, and battery separator |
| CN103205044A (en) * | 2013-03-27 | 2013-07-17 | 江苏金聚合金材料有限公司 | Silane grafted polyethylene thermally conductive composite material and preparation method and application thereof |
| CN107722429A (en) * | 2017-11-01 | 2018-02-23 | 巴州金之雨节水灌溉设备有限公司 | A kind of H types Side-slit drip irrigation belt formula and preparation method thereof |
| CN112976744A (en) * | 2021-03-31 | 2021-06-18 | 江门市华龙膜材股份有限公司 | Polyethylene composite membrane and preparation method and application thereof |
| CN114350066A (en) * | 2021-12-28 | 2022-04-15 | 浙江普利特新材料有限公司 | Mica-filled polypropylene-based composite material capable of insulating heat and resisting static electricity and preparation method thereof |
-
2022
- 2022-07-11 CN CN202210815509.6A patent/CN114953681A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090117455A1 (en) * | 2005-09-28 | 2009-05-07 | Tonen Chemical Corporation | Multi-layer, microporous polyethylene membrane, its production method, and battery separator |
| JP2008055261A (en) * | 2006-08-29 | 2008-03-13 | Kao Corp | Manufacturing method of composite particles |
| CN103205044A (en) * | 2013-03-27 | 2013-07-17 | 江苏金聚合金材料有限公司 | Silane grafted polyethylene thermally conductive composite material and preparation method and application thereof |
| CN107722429A (en) * | 2017-11-01 | 2018-02-23 | 巴州金之雨节水灌溉设备有限公司 | A kind of H types Side-slit drip irrigation belt formula and preparation method thereof |
| CN112976744A (en) * | 2021-03-31 | 2021-06-18 | 江门市华龙膜材股份有限公司 | Polyethylene composite membrane and preparation method and application thereof |
| CN114350066A (en) * | 2021-12-28 | 2022-04-15 | 浙江普利特新材料有限公司 | Mica-filled polypropylene-based composite material capable of insulating heat and resisting static electricity and preparation method thereof |
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