CN112724494A - Polyethylene material for food packaging bag - Google Patents
Polyethylene material for food packaging bag Download PDFInfo
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- CN112724494A CN112724494A CN202011606764.7A CN202011606764A CN112724494A CN 112724494 A CN112724494 A CN 112724494A CN 202011606764 A CN202011606764 A CN 202011606764A CN 112724494 A CN112724494 A CN 112724494A
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- polyethylene
- food packaging
- polyethylene material
- parts
- packaging bags
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- -1 Polyethylene Polymers 0.000 title claims abstract description 48
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 44
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 26
- 235000013305 food Nutrition 0.000 title claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000008117 stearic acid Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 44
- 229920001577 copolymer Polymers 0.000 claims description 16
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- OXYZDRAJMHGSMW-UHFFFAOYSA-N 3-chloropropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCCl OXYZDRAJMHGSMW-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 150000003512 tertiary amines Chemical class 0.000 claims description 5
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009630 liquid culture Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 239000005022 packaging material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical group 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a polyethylene material for food packaging bags, which comprises the following raw materials in parts by weight: 80-100 parts of polyethylene, 10-20 parts of impact modifier, 8-10 parts of filler, 0.1-0.3 part of stearic acid and 2-3 parts of compatilizer, wherein the filler is talcum powder, organic nano montmorillonite and modified graphene. The invention has good mechanical property and antibacterial property.
Description
Technical Field
The invention relates to the technical field of packaging bags, in particular to a polyethylene material for a food packaging bag.
Background
Polyethylene (PE for short) is a thermoplastic resin obtained by polymerizing ethylene. Polyethylene is odorless, nontoxic, wax-like in hand feeling, resistant to low temperature, good in chemical stability and easy to process. Can be made into non-woven fabrics, packaging bags and other products, and is used for packaging rice, flour and other grains. However, the tensile strength of polyethylene is low, and the prepared packaging bag is easy to crack; in addition, the grains are easily contaminated by bacteria and mold during storage, so a new packaging material needs to be provided.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a polyethylene material for food packaging bags, which has good mechanical properties and antibacterial properties.
The invention provides a polyethylene material for a food packaging bag, which comprises the following raw materials in parts by weight: 80-100 parts of polyethylene, 10-20 parts of impact modifier, 8-10 parts of filler, 0.1-0.3 part of stearic acid and 2-3 parts of compatilizer, wherein the filler is talcum powder, organic nano montmorillonite and modified graphene.
Preferably, in the preparation process of the modified graphene, 3-chloropropyltrimethoxysilane, tertiary amine and ethanol are uniformly mixed and reacted, and ethanol is removed to obtain an intermediate material; and uniformly mixing the graphene oxide with the ethanol aqueous solution of the intermediate material, and carrying out grafting reaction to obtain the modified graphene.
In the preparation process of the modified graphene, the tertiary amine can be dodecyl dimethyl tertiary amine, hexadecyl dimethyl tertiary amine and the like.
In the preparation process of the modified graphene, the dosage of ethanol and ethanol aqueous solution is not specified, and the dosage is determined according to specific operation.
Preferably, the molar ratio of 3-chloropropyltrimethoxysilane to tertiary amine is from 1.1 to 1.2: 1.
Preferably, the weight ratio of the graphene oxide to the intermediate material is 10: 0.5-1.
Preferably, the reaction is carried out at 60-70 ℃ for 40-48h, and the ethanol is removed to obtain an intermediate material.
Preferably, the grafting reaction is carried out at 75-85 ℃ for 4-6 h.
Preferably, the weight ratio of the talcum powder to the organic nano montmorillonite to the modified graphene is 2:1: 1-2.
Preferably, the impact modifier is a methyl methacrylate-butadiene-styrene copolymer.
Preferably, the compatibilizer is a polyethylene grafted maleic anhydride copolymer and a silane coupling agent.
Preferably, the weight ratio of the polyethylene grafted maleic anhydride copolymer to the silane coupling agent is 1-2: 1.
The preparation method comprises the following steps: grinding polyethylene, impact modifier and compatilizer, mixing uniformly with filler and stearic acid, extruding into fibers, cooling the fibers, laying the fibers into a net, and needling and reinforcing the net into cloth.
Has the advantages that:
1. the invention selects the methyl methacrylate-butadiene-styrene copolymer to be matched with polyethylene, and greatly improves the mechanical properties of toughness, strength and the like under the action of the compatilizer polyethylene grafted maleic anhydride copolymer and the silane coupling agent.
2. According to the invention, quaternary ammonium salt groups are introduced into the silane coupling agent, and then the modified graphene is grafted with the graphene oxide to obtain the modified graphene, so that the compatibility of the graphene and polyethylene can be greatly improved, and thus the mechanical properties such as toughness of the polyethylene are improved.
3. The talcum powder, the organic nano montmorillonite and the modified graphene are matched with each other, so that the mechanical property of the invention can be further improved; the stearic acid and the organic nano montmorillonite are matched with each other, so that the crystallinity of the polyethylene can be improved, and the toughness of the polyethylene can be further improved.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A polyethylene material for food packaging bags comprises the following raw materials in parts by weight: 80g of polyethylene, 20g of methyl methacrylate-butadiene-styrene copolymer, 4g of talcum powder, 2g of organic nano montmorillonite, 2g of modified graphene, 0.3g of stearic acid, 1g of polyethylene grafted maleic anhydride copolymer and 1g of silane coupling agent;
in the preparation process of the modified graphene, 0.4268g (0.002mol) of dodecyl dimethyl tertiary amine is dissolved in 100ml of ethanol, 0.4769g (0.0024mol) of 3-chloropropyl trimethoxy silane is added and mixed uniformly, the temperature is raised to 60 ℃ in a water bath, the mixture is kept at the temperature and stirred for 48 hours, and ethanol is removed through reduced pressure evaporation to obtain an intermediate material; and (2) ultrasonically dispersing 5g of graphene oxide in 300ml of ethanol uniformly, then adding 20ml of ethanol aqueous solution containing 0.25g of intermediate material, uniformly mixing, keeping the temperature at 85 ℃, stirring, carrying out grafting reaction for 4 hours, filtering, washing a filter cake, and drying to obtain the modified graphene.
Example 2
A polyethylene material for food packaging bags comprises the following raw materials in parts by weight: 100g of polyethylene, 10g of methyl methacrylate-butadiene-styrene copolymer, 4g of talcum powder, 2g of organic nano montmorillonite, 4g of modified graphene, 0.1g of stearic acid, 2g of polyethylene grafted maleic anhydride copolymer and 1g of silane coupling agent;
wherein in the preparation process of the modified graphene, 0.4268g (0.002mol) of dodecyl dimethyl tertiary amine is dissolved in 100ml of ethanol, then 0.4371g (0.0022mol) of 3-chloropropyl trimethoxy silane is added and mixed uniformly, the temperature is raised to 70 ℃ in a water bath, the mixture is stirred for 40h under the condition of heat preservation, and ethanol is removed by reduced pressure evaporation to obtain an intermediate material; and (2) ultrasonically dispersing 5g of graphene oxide in 300ml of ethanol uniformly, then adding 20ml of ethanol aqueous solution containing 0.5g of intermediate material, uniformly mixing, keeping the temperature at 75 ℃, stirring, carrying out grafting reaction for 6 hours, filtering, washing a filter cake, and drying to obtain the modified graphene.
Example 3
A polyethylene material for food packaging bags comprises the following raw materials in parts by weight: 90g of polyethylene, 15g of methyl methacrylate-butadiene-styrene copolymer, 4g of talcum powder, 2g of organic nano montmorillonite, 3g of modified graphene, 0.2g of stearic acid, 1.5g of polyethylene grafted maleic anhydride copolymer and 1g of silane coupling agent;
in the preparation process of the modified graphene, 0.4268g (0.002mol) of dodecyl dimethyl tertiary amine is dissolved in 100ml of ethanol, 0.4570g (0.0023mol) of 3-chloropropyl trimethoxy silane is added and mixed uniformly, the temperature is raised to 65 ℃ in a water bath, the mixture is kept at the temperature and stirred for 44 hours, and ethanol is removed through reduced pressure evaporation to obtain an intermediate material; and (2) ultrasonically dispersing 5g of graphene oxide in 300ml of ethanol uniformly, then adding 20ml of ethanol aqueous solution containing 0.4g of intermediate material, uniformly mixing, keeping the temperature and stirring at 80 ℃, carrying out grafting reaction for 5 hours, filtering, washing a filter cake, and drying to obtain the modified graphene.
Comparative example 1
The same procedure as in example 3 was repeated, except that modified graphene was not contained.
Comparative example 2
The procedure of example 3 was repeated except that the methylmethacrylate-butadiene-styrene copolymer, the polyethylene-grafted maleic anhydride copolymer and the silane coupling agent were not contained.
Comparative example 3
The procedure of example 3 was otherwise the same as except that "modified graphene" was replaced with "unmodified graphene oxide".
Experiment of
Taking examples 1-3 and comparative examples 1-3, mixing uniformly according to the same method, extruding into fibers, cooling the fibers, laying the fibers into a net, and reinforcing the net by needling to obtain non-woven fabrics with the same size, wherein the gram weights of the non-woven fabrics are all 30g/m2Then manufacturing the packaging bags with the same size; the performance test was performed for each group, and the results are shown in table 1.
a. The breaking strength of each nonwoven group was measured according to FZ/T60005-1991.
b. The packaging bags prepared in each group were filled with 500g of rice, and after sealing, the bag was dropped from a height of 300mm, and 10 parallel samples were prepared by observing whether the packaging bag was broken after dropping.
c. The method for detecting the antibacterial performance comprises the following steps: cutting the non-woven fabrics prepared in the examples 1-3 and the comparative examples 1-3 into cloth blocks with the same size, sterilizing, and adding the cloth blocks into different bacterial suspensions according to the same addition amount for shake cultivation 12 (bacteria are cultivated at 37 ℃ and fungi are cultivated at 28 ℃); then 100 mul of bacterial liquid is respectively transferred to 10ml of liquid culture medium to be evenly shaken and cultured (bacteria are cultured for 24h at the constant temperature of 37 ℃ and fungi are cultured for 4 days at the constant temperature of 28 ℃), the colony count is counted, the bacteriostasis rate is calculated, and the pure polyethylene non-woven fabric is used as a blank control group, and the bacteriostasis rate is (the colony count of the pure polyethylene non-woven fabric-the colony count of each group)/the colony count of the pure polyethylene non-woven fabric is 100%.
TABLE 1 test results
As can be seen from the above table, the present invention has good mechanical properties and antibacterial properties.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The polyethylene material for the food packaging bag is characterized by comprising the following raw materials in parts by weight: 80-100 parts of polyethylene, 10-20 parts of impact modifier, 8-10 parts of filler, 0.1-0.3 part of stearic acid and 2-3 parts of compatilizer, wherein the filler is talcum powder, organic nano montmorillonite and modified graphene.
2. The polyethylene material for the food packaging bag according to claim 1, wherein in the preparation process of the modified graphene, 3-chloropropyltrimethoxysilane, tertiary amine and ethanol are uniformly mixed, reacted, and the ethanol is removed to obtain an intermediate material; and uniformly mixing the graphene oxide with the ethanol aqueous solution of the intermediate material, and carrying out grafting reaction to obtain the modified graphene.
3. The polyethylene material for food packaging bags according to claim 2, wherein the molar ratio of 3-chloropropyltrimethoxysilane to tertiary amine is 1.1-1.2: 1.
4. The polyethylene material for food packaging bags according to claim 2 or 3, wherein the weight ratio of the graphene oxide to the intermediate material is 10: 0.5-1.
5. The polyethylene material for food packaging bags according to any one of claims 2 to 4, wherein the reaction is carried out at 60 to 70 ℃ for 40 to 48 hours, and the ethanol is removed to obtain an intermediate material.
6. The polyethylene material for food packaging bags according to any one of claims 2 to 5, wherein the grafting reaction is carried out at 75 to 85 ℃ for 4 to 6 hours.
7. The polyethylene material for the food packaging bag according to any one of claims 1 to 6, wherein the weight ratio of the talcum powder, the organic nano montmorillonite and the modified graphene is 2:1: 1-2.
8. The polyethylene material for food packaging bags according to any one of claims 1 to 7, wherein the impact modifier is a methyl methacrylate-butadiene-styrene copolymer.
9. The polyethylene material for food packaging bags according to any one of claims 1 to 8, wherein the compatibilizer is a polyethylene-grafted maleic anhydride copolymer and a silane coupling agent.
10. The polyethylene material for food packaging bags according to claim 9, wherein the weight ratio of the polyethylene-grafted maleic anhydride copolymer to the silane coupling agent is 1-2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011606764.7A CN112724494B (en) | 2020-12-28 | 2020-12-28 | Polyethylene material for food packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011606764.7A CN112724494B (en) | 2020-12-28 | 2020-12-28 | Polyethylene material for food packaging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112724494A true CN112724494A (en) | 2021-04-30 |
| CN112724494B CN112724494B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011606764.7A Active CN112724494B (en) | 2020-12-28 | 2020-12-28 | Polyethylene material for food packaging bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN112724494B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602070A (en) * | 2016-03-17 | 2016-05-25 | 江南大学 | Reinforced polyethylene (PE) film and preparation method thereof |
| CN106674689A (en) * | 2016-12-22 | 2017-05-17 | 苏州曙帆信电子科技有限公司 | Anti-impact wear-resistant PE (polyethylene) plastic alloy for turnover box |
| CN107129618A (en) * | 2017-05-12 | 2017-09-05 | 安徽哈雷传动机械有限公司 | The preparation method of speed changer sliding block material graphene modified poly ethylene |
-
2020
- 2020-12-28 CN CN202011606764.7A patent/CN112724494B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602070A (en) * | 2016-03-17 | 2016-05-25 | 江南大学 | Reinforced polyethylene (PE) film and preparation method thereof |
| CN106674689A (en) * | 2016-12-22 | 2017-05-17 | 苏州曙帆信电子科技有限公司 | Anti-impact wear-resistant PE (polyethylene) plastic alloy for turnover box |
| CN107129618A (en) * | 2017-05-12 | 2017-09-05 | 安徽哈雷传动机械有限公司 | The preparation method of speed changer sliding block material graphene modified poly ethylene |
Non-Patent Citations (1)
| Title |
|---|
| 陈义万主编, 华中科技大学出版社 * |
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