CN116239831A - Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof - Google Patents
Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof Download PDFInfo
- Publication number
- CN116239831A CN116239831A CN202111491392.2A CN202111491392A CN116239831A CN 116239831 A CN116239831 A CN 116239831A CN 202111491392 A CN202111491392 A CN 202111491392A CN 116239831 A CN116239831 A CN 116239831A
- Authority
- CN
- China
- Prior art keywords
- component
- polyethylene
- polyethylene composition
- mass flow
- flow rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 Polyethylene Polymers 0.000 title claims abstract description 96
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 94
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 94
- 239000000203 mixture Substances 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000155 melt Substances 0.000 claims abstract description 26
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 13
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 13
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 7
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000010096 film blowing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000004711 α-olefin Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012785 packaging film Substances 0.000 description 2
- 229920006280 packaging film Polymers 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing 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
- 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
-
- 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
- C08J2323/06—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- 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
- C08L2207/066—LDPE (radical process)
Landscapes
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a polyethylene composition and a preparation method thereof, and a polyethylene film and a preparation method thereof, wherein the polyethylene composition comprises A, B, C components, A and B are low-density polyethylene, C is high-density polyethylene, and M is less than or equal to 10.5% C /M B —M B /M A Not more than 10.0, wherein M A For the melt mass flow rate, M, of component A B For the melt mass flow rate, M, of component B C Is the melt mass flow rate of component C. The film prepared from the polyethylene composition has good tensile property and tearing property, and remarkably has good impact strength effect.
Description
Technical Field
The invention belongs to the technical field of polyethylene, and particularly relates to a polyethylene composition and a preparation method thereof, and a polyethylene film and a preparation method thereof.
Background
In recent years, the packaging industry develops rapidly, and besides the basic protection function, the packaging material is reasonably reinforced in the aspects of barrier property, sealing property, mechanical property and the like according to the characteristics of contents and quality guarantee requirements. For heavier quality contents, the impact resistance of the package is certainly an important indicator of product safety.
Impact resistance is one of the important mechanical properties of packaging film materials, reflecting the ability of the material to resist external destructive forces. Especially for the packing material with little or no clearance with the content, and the packing of heavier quality, impact resistance directly influences the integrality and the protective action of packing under the impact condition, can effectively avoid the damage that the product leads to because of the impact resistance of packaging film material is poor in the link of circulating. Therefore, reasonable and effective impact resistance is a key point in plastic packaging.
Chinese patent No. cn201710973431.X discloses a polyethylene composition containing component a, component B, component C and component D; the component A is polypropylene, the component B is low-density polyethylene, the component C is linear low-density polyethylene, the component D is an antioxidant, the content of the polypropylene is 2-10 parts by weight, the content of the low-density polyethylene is 20-45 parts by weight, the content of the linear low-density polyethylene is 50-78 parts by weight, and the content of the antioxidant is 0.1-0.4 part by weight based on the total content of the polyethylene composition. The film has the excellent characteristics of puncture resistance, good stretching and impact properties, low haze and less crystal lattice fish eyes.
Chinese patent CN201911121008.2 discloses a polyethylene composition, polyethylene plastic particles prepared from the polyethylene composition, packaging products prepared from the polyethylene plastic particles, and use of the packaging products in packaging volatile pharmaceutical ingredients. The polyethylene composition provided by the invention comprises polyethylene and organic molecules. The polyethylene plastic particles prepared from the polyethylene composition have good tensile property, mechanical strength and appearance, and are suitable for preparing packaging products, in particular blow-molded packaging products. According to the invention, the organic molecules are added into the polyethylene composition, and when the polyethylene plastic particles prepared from the polyethylene composition are used for preparing packaging products, the organic molecules can play a role of occupying the molecules, so that the volatile medicinal components are not easy to migrate out of the packaging products. However, the invention does not have excellent impact resistance.
Disclosure of Invention
The invention aims to provide a polyethylene composition to solve the problem that a film prepared from the polyethylene composition in the prior art is poor in impact resistance.
The invention also aims to provide a preparation method of the polyethylene composition, a polyethylene film and a preparation method thereof.
To achieve the above object, the present invention provides a polyethylene composition comprising A, B, C three components, wherein A and B are low density polyethylene and C is high density polyethylene, wherein, -10.5.ltoreq.M C /M B —M B /M A Not more than 10.0, wherein M A For the melt mass flow rate, M, of component A B For the melt mass flow rate, M, of component B C Is the melt mass flow rate of component C.
The polyethylene composition of the invention, wherein, -5.0.ltoreq.M C /M B —M B /M A 7.5 or less, more preferably, -4.5 or less M C /M B —M B /M A ≤6.0。
In the present invention, component A, component B and component C are all copolymers of ethylene and an alpha-olefin, and the alpha-olefin in component A, component B and component C is each independently one of C3-C12 olefins, preferably, the alpha-olefin is one of 1-butene, 1-hexane and 1-octene.
The polyethylene composition of the invention, wherein the density of component A is in the range of 0.908-0.926g/cm 3 The density of the component B is in the range of 0.904-0.923g/cm 3 The density of component C is in the range of 0.940-0.960g/cm 3 。
The polyethylene composition of the invention, wherein the density of component A is in the range of 0.912-0.921g/cm 3 The density of the component B is in the range of 0.910-0.918g/cm 3 The density of component C is in the range of 0.944-0.950g/cm 3 。
The polyethylene composition according to the invention, wherein the melt mass flow rate M of component A is at 190℃and 2.16kg A The melt mass flow rate M of component B is in the range of 0.1-3.0g/10min B The melt mass flow rate M of component C is in the range of 0.8-6.0g/10min C The range is 5.0-20.0g/10min.
The polyethylene composition according to the invention, wherein the melt mass flow rate M of component A is at 190℃and 2.16kg A The melt mass flow rate M of component B is in the range of 0.2 to 0.6g/10min B The melt mass flow rate M of component C is in the range of 1.0-3.0g/10min C The range is 9.0-12.0g/10min.
The polyethylene composition comprises, by weight, 60-80 parts of a component A, 10-25 parts of a component B and 5-15 parts of a component C, based on 100 parts of the total weight of the composition.
In order to achieve the aim, the invention also provides a preparation method of the polyethylene composition, which comprises the steps of mixing the component A, the component B and the component C in proportion, carrying out melt blending and granulating, wherein the extrusion temperature is 180-220 ℃.
In order to achieve the above object, the present invention also provides a polyethylene film prepared from the polyethylene composition, wherein the film has a thickness of 20 to 70. Mu.m, preferably 40 to 60. Mu.m.
In order to achieve the above object, the present invention also provides a method for preparing a polyethylene film, wherein the polyethylene composition prepared by the above method is extruded and drawn by inflation, and the extrusion temperature is 190-260 ℃, preferably 220-245 ℃.
The polyethylene film of the present invention has an inflation ratio of 2.0 to 3.0, preferably 2.5 to 3.0.
The beneficial effects of the invention are as follows:
in preparing the polyethylene composition of the component A, the component B and the component C having the above specific densities and melt mass flow rates into a film, the film has good tensile properties and tear properties, and remarkably, impact strength has good effects.
Detailed Description
The present invention will be specifically described below by way of examples. It is noted herein that the following examples are given solely for the purpose of illustration and are not to be construed as limiting the scope of the invention, as many insubstantial modifications and variations of the invention will become apparent to those skilled in the art in light of the above disclosure.
Preparing the polyethylene composition and a corresponding polyethylene composition film, mechanically mixing the component A, the component B, the component C and the auxiliary agent according to a proportion, and extruding the mixture into particles by a ZSK25 double-screw extruder (model is ZSK-25P8.2E, manufactured by Germany Keplong company); the resulting polyethylene composition pellets were made into polyethylene films using a vertical film blowing machine (model SJ-45 x 25-FM600, manufactured by dai company rubber plastic machinery).
Impact breakage quality of the film was measured according to the method specified in GB 9639.1-2008; tensile strength was measured according to the method specified in GB/T1040.3-2006; right angle tear strength was measured according to the method specified in GB/T16578.2-2009.
Example 1
Component A is commercially available low density polyethylene with a density of 0.916g/cm 3 Melt mass flow rate M A 0.2g/10min; component B is commercially available low-density polyethylene with a density of 0.918g/cm 3 Melt mass flow rate M B 1.0g/10min; component C is commercially available high density polyethylene, density0.949g/cm 3 Melt mass flow rate M C 11g/10min. The relationship between the melt mass flow rates of component A, component B and component C is M C /M B —M B /M A =6.0, satisfying-5.0.ltoreq.M C /M B —M B /M A ≤7.5。
The mass of the component A is 60 parts, the mass of the component B is 25 parts, and the mass of the component C is 15 parts, calculated by 100 parts of the total mass of the polyethylene composition. The components are weighed according to the proportion and then mixed, extruded and granulated by a ZSK25 double-screw extruder, and the polyethylene composition granules are obtained.
The prepared polyethylene composition pellets were added to a SJ-45 x 25-FM600 vertical film blowing machine, the extrusion screw temperature was 220 ℃, and a polyethylene composition film was obtained with a film thickness of 60 μm and a blow-up ratio of 2.5.
Example 2
Component A is commercially available low density polyethylene with a density of 0.916g/cm 3 Melt mass flow rate M A 0.2g/10min; component B is commercially available low-density polyethylene with a density of 0.918g/cm 3 Melt mass flow rate M B 2.0g/10min; component C is commercially available high density polyethylene with a density of 0.949g/cm 3 Melt mass flow rate M C 11g/10min. The relationship between the melt mass flow rates of component A, component B and component C is M C /M B —M B /M A -4.5 satisfying-5.0.ltoreq.M C /M B —M B /M A ≤7.5。
The mass of the component A is 60 parts, the mass of the component B is 25 parts, and the mass of the component C is 15 parts, calculated by 100 parts of the total mass of the polyethylene composition. The components are weighed according to the proportion and then mixed, extruded and granulated by a ZSK25 double-screw extruder, and the polyethylene composition granules are obtained.
The prepared polyethylene composition pellets were added to a SJ-45 x 25-FM600 vertical film blowing machine, the extrusion screw temperature was 220 ℃, and a polyethylene composition film was obtained with a film thickness of 60 μm and a blow-up ratio of 2.5.
Example 3
Component A is commercially available low density polyethylene with a density of 0.921g/cm 3 Melt mass flow rate M A 0.25g/10min; component B is commercially available low-density polyethylene with a density of 0.918g/cm 3 Melt mass flow rate M B 1.0g/10min; component C is commercially available high density polyethylene with a density of 0.949g/cm 3 Melt mass flow rate M C 11g/10min. The relationship between the melt mass flow rates of component A, component B and component C is M C /M B —M B /M A =7, satisfy-5.0.ltoreq.M C /M B —M B /M A ≤7.5。
The mass of the component A is 60 parts, the mass of the component B is 25 parts, and the mass of the component C is 15 parts, calculated by 100 parts of the total mass of the polyethylene composition. The components are weighed according to the proportion and then mixed, extruded and granulated by a ZSK25 double-screw extruder, and the polyethylene composition granules are obtained.
The prepared polyethylene composition pellets were added to a SJ-45 x 25-FM600 vertical film blowing machine, the extrusion screw temperature was 220 ℃, and a polyethylene composition film was obtained with a film thickness of 60 μm and a blow-up ratio of 2.5.
Example 4
The composition of the components, the polyethylene composition and the polyethylene film of example 1 were prepared in the same manner, except that the parts by mass of each component were changed so that the mass of component A was 65 parts, the mass of component B was 20 parts and the mass of component C was 15 parts.
Example 5
The composition of the components, the polyethylene composition and the polyethylene film of example 2 were prepared in the same manner, except that the parts by mass of each component were changed so that the mass of component A was 70 parts, the mass of component B was 20 parts and the mass of component C was 10 parts.
Example 6
The composition of the components, the polyethylene composition and the polyethylene film were prepared in the same manner as in example 3, except that the parts by mass of each component were changed so that the mass of component A was 75 parts, the mass of component B was 15 parts and the mass of component C was 10 parts.
Example 7
The polyethylene film prepared in the same manner as the composition of the component, the parts by mass of the components and the preparation of the polyethylene composition in example 1 had a thickness of 50. Mu.m, and a blow-up ratio of 3.0.
Example 8
The polyethylene film prepared in the same manner as the composition of the components, the parts by mass of the components and the preparation of the polyethylene composition in example 2 had a thickness of 40. Mu.m, and a blow-up ratio of 3.0.
Example 9
The polyethylene film prepared in the same manner as the composition of example 3, the parts by mass of the respective components and the preparation of the polyethylene composition had a thickness of 50. Mu.m, and a blow-up ratio of 2.5.
Comparative example 1
The polyethylene film was obtained by removing the component A and the component B in example 1, retaining only the component C, in the same manner as in the preparation of the polyethylene film in example 1.
Comparative example 2
The polyethylene film was obtained by removing the component C of example 1, leaving 50 parts by mass of the component A and 50 parts by mass of the component B in the same manner as in the preparation of the polyethylene film of example 1.
Comparative example 3
The composition of the components, the polyethylene composition and the polyethylene film of example 2 were prepared in the same manner, except that the parts by mass of each component were changed so that the mass of component A was 25 parts, the mass of component B was 25 parts and the mass of component C was 50 parts.
Comparative example 4
Component A is commercially available low density polyethylene with a density of 0.916g/cm 3 Melt mass flow rate M A 0.2g/10min; component B is commercially available low-density polyethylene with a density of 0.918g/cm 3 Melt mass flow rate M B 3.0g/10min; component C is commercially available high density polyethylene with a density of 0.949g/cm 3 Melt mass flow rate M C 11g/10min. The relationship between the melt mass flow rates of component A, component B and component C is M C /M B —M B /M A ＝-11.3。
The polyethylene films obtained in the above examples and comparative examples were subjected to performance tests, the test items including impact failure quality, tensile strength and right angle tear strength, and the results are shown in Table 1.
TABLE 1 mechanical test results of polyethylene films
As can be seen from the analysis of the film performance test results of the examples and comparative examples in Table 1, the polyethylene composition provided in the present invention produced films having higher impact breakage quality, tear strength and tensile strength. The impact breakage quality is more than or equal to 400g, the longitudinal tensile strength is more than or equal to 50MPa, the transverse tensile strength is more than or equal to 45MPa, and the right-angle tearing strength is more than or equal to 120kN/m. When the melt mass flow rate of each component in the polyethylene composition satisfies-5.0.ltoreq.M C /M B —M B /M A When the impact damage quality, the tearing strength and the tensile strength of the films are improved in the examples 1-9 compared with the comparative examples 1-4.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A polyethylene composition comprising A, B, C components, wherein A and B are low density polyethylene and C is high density polyethylene, characterized in that-10.5.ltoreq.M C /M B —M B /M A Not more than 10.0, wherein M A For the melt mass flow rate, M, of component A B For the melt mass flow rate, M, of component B C Is the melt mass flow rate of component C.
2. The polyethylene composition according to claim 1, whereinIs that-5.0 is less than or equal to M C /M B —M B /M A ≤7.5。
3. The polyethylene composition according to claim 1, wherein the density of component A is in the range of 0.908 to 0.926g/cm 3 The density of the component B is in the range of 0.904-0.923g/cm 3 The density of component C is in the range of 0.940-0.960g/cm 3 。
4. A polyethylene composition according to claim 3, wherein the density of component a is in the range of 0.912 to 0.921g/cm 3 The density of the component B is in the range of 0.910-0.918g/cm 3 The density of component C is in the range of 0.944-0.950g/cm 3 。
5. The polyethylene composition as claimed in claim 1, wherein the melt mass flow rate M of component A is at 190℃and 2.16kg A The melt mass flow rate M of component B is in the range of 0.1-3.0g/10min B The melt mass flow rate M of component C is in the range of 0.8-6.0g/10min C The range is 5.0-20.0g/10min.
6. The polyethylene composition according to claim 5, wherein the melt mass flow rate M of component A is at 190℃under 2.16kg A The melt mass flow rate M of component B is in the range of 0.2 to 0.6g/10min B The melt mass flow rate M of component C is in the range of 1.0-3.0g/10min C The range is 9.0-12.0g/10min.
7. The polyethylene composition according to claim 1, wherein the polyethylene composition comprises 60 to 80 parts of component A, 10 to 25 parts of component B and 5 to 15 parts of component C, based on 100 parts by weight of the total composition.
8. A process for the preparation of a polyethylene composition according to any of claims 1 to 7, wherein the mixture of component a, component B and component C, which are mixed in proportions, is melt blended and pelletized at an extrusion temperature of 180 to 220 ℃.
9. Polyethylene film prepared from a polyethylene composition according to any of claims 1 to 7, wherein the film has a thickness of 20 to 70 μm, preferably a thickness of 40 to 60 μm.
10. A process for the preparation of a polyethylene film according to claim 9, characterized in that the polyethylene composition prepared according to the process of claim 8 is extruded, drawn by inflation, at a temperature of 190-260 ℃, preferably 220-245 ℃.
11. The process for the preparation of a polyethylene film according to claim 10, wherein the blow-up ratio is 2.0-3.0, preferably 2.5-3.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111491392.2A CN116239831A (en) | 2021-12-08 | 2021-12-08 | Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111491392.2A CN116239831A (en) | 2021-12-08 | 2021-12-08 | Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116239831A true CN116239831A (en) | 2023-06-09 |
Family
ID=86630099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111491392.2A Pending CN116239831A (en) | 2021-12-08 | 2021-12-08 | Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116239831A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772797A (en) * | 2012-10-20 | 2014-05-07 | 中国石油化工股份有限公司 | Highly-transparent polyethylene composition and preparation method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN105623059A (en) * | 2014-10-27 | 2016-06-01 | 中国石油化工股份有限公司 | Polyethylene composition and thin film thereof |
| CN111100366A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Polyethylene composition, preparation method thereof and film packaging product |
| CN112442223A (en) * | 2019-09-04 | 2021-03-05 | 中国石油化工股份有限公司 | Polyethylene composition and polyethylene film |
| CN112440531A (en) * | 2019-09-04 | 2021-03-05 | 中国石油化工股份有限公司 | Polyethylene composite film and preparation method thereof |
| CN112940383A (en) * | 2019-12-11 | 2021-06-11 | 佐藤技研(江门)股份有限公司 | Barrier material, preparation method thereof, barrier heat-resistant 180 ℃ film and composite film |
-
2021
- 2021-12-08 CN CN202111491392.2A patent/CN116239831A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772797A (en) * | 2012-10-20 | 2014-05-07 | 中国石油化工股份有限公司 | Highly-transparent polyethylene composition and preparation method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN105623059A (en) * | 2014-10-27 | 2016-06-01 | 中国石油化工股份有限公司 | Polyethylene composition and thin film thereof |
| CN111100366A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Polyethylene composition, preparation method thereof and film packaging product |
| CN112442223A (en) * | 2019-09-04 | 2021-03-05 | 中国石油化工股份有限公司 | Polyethylene composition and polyethylene film |
| CN112440531A (en) * | 2019-09-04 | 2021-03-05 | 中国石油化工股份有限公司 | Polyethylene composite film and preparation method thereof |
| CN112940383A (en) * | 2019-12-11 | 2021-06-11 | 佐藤技研(江门)股份有限公司 | Barrier material, preparation method thereof, barrier heat-resistant 180 ℃ film and composite film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0428745B2 (en) | ||
| KR101986123B1 (en) | Composition for stretch film comprising low carbon-type biomass polyethylene and method for preparing the same | |
| GB1109065A (en) | Ethylene/propylene copolymer compositions and their production | |
| US5344714A (en) | LLDPE composite film free of melt fracture | |
| US3634551A (en) | Polybutene-1 blends having improved heat sealability | |
| CN103524882A (en) | Polyolefin resin composition with lusterless characteristic | |
| KR100889220B1 (en) | High density polyethylene resin composition for chemical bottle | |
| CN1242390A (en) | PE raw material with photo degradable and biodegradable properties | |
| KR20220075523A (en) | Polyethylene resin composition for bi-directionally oriented films | |
| CN108342012B (en) | mLLDPE resin composition for plastic greenhouse film and preparation method thereof | |
| CN103739913B (en) | A kind of polyethylene film material and preparation method thereof | |
| CN116239831A (en) | Polyethylene composition and preparation method thereof, polyethylene film and preparation method thereof | |
| US3299186A (en) | Melt blending of polyolefins | |
| CN114573902A (en) | Polyethylene composition and preparation method thereof | |
| KR20210067265A (en) | Composition of polypropylene resin for higher shrinkage film and shrinkage film prepared using the same | |
| US3551526A (en) | Chlorinated ethylene polymer molding materials | |
| CN108467539B (en) | Special material for recycled polypropylene filling rope and preparation method thereof | |
| KR102404680B1 (en) | Resin compositions of polyethylene used agricultural film and film manufactured by using the same | |
| CN110804217A (en) | High-filling starch masterbatch and preparation method thereof | |
| KR101812888B1 (en) | Resin composition of sealant film with good mechanical properties and film having the same composition | |
| KR101812887B1 (en) | Resin compositions of polyethylene used general purpose film and film manufactured by using the same | |
| CN103709584A (en) | Environment-friendly thermoplastic elastomer composition for stretch films | |
| KR100745318B1 (en) | Linear low density polyethylene resin composition with high impact strength | |
| JPS60163949A (en) | Polypropylene composition | |
| KR101188924B1 (en) | Polypropylene composition with a excellent transparency and improved processing window, and the devices including articles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |