CN112375277A - Square bottom compression bag and production method thereof - Google Patents
Square bottom compression bag and production method thereof Download PDFInfo
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- CN112375277A CN112375277A CN202011260679.XA CN202011260679A CN112375277A CN 112375277 A CN112375277 A CN 112375277A CN 202011260679 A CN202011260679 A CN 202011260679A CN 112375277 A CN112375277 A CN 112375277A
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- 230000006835 compression Effects 0.000 title claims abstract description 44
- 238000007906 compression Methods 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 182
- 229920002635 polyurethane Polymers 0.000 claims abstract description 44
- 239000004814 polyurethane Substances 0.000 claims abstract description 44
- 239000004698 Polyethylene Substances 0.000 claims abstract description 43
- MBLBDJOUHNCFQT-LXGUWJNJSA-N aldehydo-N-acetyl-D-glucosamine Chemical compound CC(=O)N[C@@H](C=O)[C@@H](O)[C@H](O)[C@H](O)CO MBLBDJOUHNCFQT-LXGUWJNJSA-N 0.000 claims abstract description 42
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 40
- 239000011707 mineral Substances 0.000 claims abstract description 40
- 239000004014 plasticizer Substances 0.000 claims abstract description 37
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 34
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 34
- 229920002678 cellulose Polymers 0.000 claims abstract description 34
- 239000001913 cellulose Substances 0.000 claims abstract description 34
- 239000003822 epoxy resin Substances 0.000 claims abstract description 34
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 34
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 34
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 34
- 229920001971 elastomer Polymers 0.000 claims abstract description 26
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- -1 fatty acid ester Chemical class 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 241000238557 Decapoda Species 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000010096 film blowing Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 241000238017 Astacoidea Species 0.000 claims description 3
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- 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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
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- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Bag Frames (AREA)
Abstract
The invention discloses a square-bottom compression bag and a production method thereof, belonging to the technical field of compression bag preparation and comprising 30-45 parts of high-density polyethylene, 20-30 parts of rubber powder, 20-40 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 10-30 parts of polyurethane, 3-5 parts of plasticizer, 3-6 parts of antioxidant, 2-6 parts of PE wax, 1.5-5 parts of E-51 epoxy resin, 18-25 parts of shrimp shell powder and 14-22 parts of modified cellulose. According to the invention, the tensile strength of the compression bag can be effectively increased by adding the alpha-phase alumina powder and the polyurethane, and the occurrence of cracking can be effectively avoided; become square end compression bag by traditional two formula and can effectually increase the in-service area of compression bag, also be convenient for place simultaneously.
Description
Technical Field
The invention relates to a compressed bag and a production method thereof, in particular to a square-bottom compressed bag and a production method thereof, belonging to the technical field of compressed bag preparation.
Background
The compression bag, also called PE zipper composite bag, can effectively prevent fleas, mould, moisture, oxidation and the like, so that clothes can be stored cleanly, and the compression bag can be divided into a vacuum compression bag, an air suction type cotton quilt compression bag, a hand-rolling type vacuum compression bag, a hand-pressing type vacuum compression bag and the like.
The existing compression bag has the following defects: the compression bag is two-piece without a base and cannot stand upright; meanwhile, the two-piece compression bag has small capacity and is easy to crack.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art and provides a square-bottom compression bag and a production method thereof.
The purpose of the invention can be achieved by adopting the following technical scheme:
a square-bottom compression bag comprises, by weight, 30-45 parts of high-density polyethylene, 20-30 parts of rubber powder, 20-40 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 10-30 parts of polyurethane, 3-5 parts of a plasticizer, 3-6 parts of an antioxidant, 2-6 parts of PE (polyethylene) wax, 1.5-5 parts of E-51 epoxy resin, 18-25 parts of shrimp shell powder and 14-22 parts of modified cellulose.
Preferably, the modified polyethylene composition comprises, by weight, 35-45 parts of high-density polyethylene, 25-30 parts of rubber powder, 25-35 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 15-25 parts of polyurethane, 3-5 parts of a plasticizer, 3-6 parts of an antioxidant, 2-6 parts of PE wax, 1.5-5 parts of E-51 epoxy resin, 20-25 parts of shrimp shell powder and 15-22 parts of modified cellulose.
Preferably, the modified polyurethane material comprises, by weight, 40 parts of high-density polyethylene, 28 parts of rubber powder, 30 parts of borosilicate mineral powder, 5 parts of alpha-phase alumina powder, 20 parts of polyurethane, 4 parts of plasticizer, 5 parts of antioxidant, 4 parts of PE wax, 3 parts of E-51 epoxy resin, 22 parts of shrimp shell powder and 20 parts of modified cellulose.
Preferably, the modified polyethylene composition comprises, by weight, 41 parts of high-density polyethylene, 29 parts of rubber powder, 31 parts of borosilicate mineral powder, 7 parts of alpha-phase alumina powder, 21 parts of polyurethane, 4 parts of plasticizer, 5 parts of antioxidant, 5 parts of PE wax, 4 parts of E-51 epoxy resin, 23 parts of shrimp shell powder and 20 parts of modified cellulose.
Preferably, the shrimp shell powder is obtained by cleaning, drying and crushing shrimp shells of crayfish, river shrimp or sea shrimp.
Preferably, the polyurethane is a soft polyurethane, and the plasticizer is one or more of fatty acid ester, polyol ester or alkyl sulfonate.
Preferably, the particle size of the borosilicate mineral powder is 10 to 100 μm.
Preferably, the particle size of the alpha-phase alumina powder is 50-130 μm.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
Preferably, in the step 2, the particle size of the borosilicate mineral powder, the α -phase alumina powder and the shrimp shell powder after the pulverization, mixing and grinding is 1 to 45 μm.
The invention has the beneficial technical effects that: according to the square-bottom compression bag and the production method, the tensile strength of the compression bag can be effectively improved by adding the alpha-phase alumina powder and the polyurethane, and the occurrence of cracking can be effectively avoided; become square end compression bag by traditional two formula and can effectually increase the in-service area of compression bag, also be convenient for place simultaneously.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail with reference to the following examples, but the embodiments of the present invention are not limited thereto.
According to the square-bottom compression bag and the production method thereof, the square-bottom compression bag comprises, by weight, 30-45 parts of high-density polyethylene, 20-30 parts of rubber powder, 20-40 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 10-30 parts of polyurethane, 3-5 parts of a plasticizer, 3-6 parts of an antioxidant, 2-6 parts of PE wax, 1.5-5 parts of E-51 epoxy resin, 18-25 parts of shrimp shell powder and 14-22 parts of modified cellulose.
The modified polyethylene composition comprises, by weight, 35-45 parts of high-density polyethylene, 25-30 parts of rubber powder, 25-35 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 15-25 parts of polyurethane, 3-5 parts of a plasticizer, 3-6 parts of an antioxidant, 2-6 parts of PE wax, 1.5-5 parts of E-51 epoxy resin, 20-25 parts of shrimp shell powder and 15-22 parts of modified cellulose.
The modified polyethylene composition comprises, by weight, 40 parts of high-density polyethylene, 28 parts of rubber powder, 30 parts of borosilicate mineral powder, 5 parts of alpha-phase alumina powder, 20 parts of polyurethane, 4 parts of plasticizer, 5 parts of antioxidant, 4 parts of PE (polyethylene) wax, 3 parts of E-51 epoxy resin, 22 parts of shrimp shell powder and 20 parts of modified cellulose.
The modified polyethylene composition comprises, by weight, 41 parts of high-density polyethylene, 29 parts of rubber powder, 31 parts of borosilicate mineral powder, 7 parts of alpha-phase alumina powder, 21 parts of polyurethane, 4 parts of plasticizer, 5 parts of antioxidant, 5 parts of PE (polyethylene) wax, 4 parts of E-51 epoxy resin, 23 parts of shrimp shell powder and 20 parts of modified cellulose.
The shrimp shell powder is obtained by cleaning, drying and crushing shrimp shells of crayfish, river shrimp or sea shrimp. The polyurethane is soft polyurethane, and the plasticizer is one or more of fatty acid ester, polyol ester or alkyl sulfonate. The particle size of the borosilicate mineral powder is 10 to 100 μm. The alpha-phase alumina powder has a particle size of 50 to 130 μm.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
In step 2, the particle size of the crushed, mixed and ground borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder is 1-45 μm.
Example 1:
a square-bottom compression bag and a production method thereof comprise, by weight, 35 parts of high-density polyethylene, 25 parts of rubber powder, 25 parts of borosilicate mineral powder, 3 parts of alpha-phase alumina powder, 15 parts of polyurethane, 3 parts of a plasticizer, 3 parts of an antioxidant, 2 parts of PE wax, 1.5 parts of E-51 epoxy resin, 20 parts of shrimp shell powder and 15 parts of modified cellulose.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
Example 2:
a square-bottom compression bag and a production method thereof comprise, by weight, 36 parts of high-density polyethylene, 26 parts of rubber powder, 26 parts of borosilicate mineral powder, 4 parts of alpha-phase alumina powder, 16 parts of polyurethane, 4 parts of a plasticizer, 4 parts of an antioxidant, 3 parts of PE wax, 2 parts of E-51 epoxy resin, 21 parts of shrimp shell powder and 16 parts of modified cellulose.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
Example 3:
a square-bottom compression bag and a production method thereof comprise, by weight, 40 parts of high-density polyethylene, 28 parts of rubber powder, 30 parts of borosilicate mineral powder, 5 parts of alpha-phase alumina powder, 20 parts of polyurethane, 4 parts of a plasticizer, 5 parts of an antioxidant, 4 parts of PE wax, 3 parts of E-51 epoxy resin, 22 parts of shrimp shell powder and 20 parts of modified cellulose.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
Example 4:
a square-bottom compression bag and a production method thereof comprise, by weight, 41 parts of high-density polyethylene, 29 parts of rubber powder, 31 parts of borosilicate mineral powder, 7 parts of alpha-phase alumina powder, 21 parts of polyurethane, 4 parts of a plasticizer, 5 parts of an antioxidant, 5 parts of PE wax, 4 parts of E-51 epoxy resin, 23 parts of shrimp shell powder and 20 parts of modified cellulose.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
Example 5:
a square-bottom compression bag and a production method thereof comprise, by weight, 45 parts of high-density polyethylene, 30 parts of rubber powder, 35 parts of borosilicate mineral powder, 8 parts of alpha-phase alumina powder, 25 parts of polyurethane, 5 parts of a plasticizer, 6 parts of an antioxidant, 6 parts of PE wax, 5 parts of E-51 epoxy resin, 25 parts of shrimp shell powder and 22 parts of modified cellulose.
A production method of a square-bottom compression bag comprises the following steps:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
As described above, in this example, according to the square-bottomed compressed bag and the production method of this example, it is understood from examples 1 to 5 that the square-bottomed compressed bags prepared in examples 3 and 4 have a large actual usable area and are not easily broken. The tensile strength of the compression bag can be effectively improved by adding the alpha-phase aluminum oxide powder and the polyurethane, and the occurrence of the bursting situation can be effectively avoided; become square end compression bag by traditional two formula and can effectually increase the in-service area of compression bag, also be convenient for place simultaneously.
Claims (10)
1. The square-bottom compression bag is characterized by comprising, by weight, 30-45 parts of high-density polyethylene, 20-30 parts of rubber powder, 20-40 parts of borosilicate mineral powder, 3-8 parts of alpha-phase alumina powder, 10-30 parts of polyurethane, 3-5 parts of a plasticizer, 3-6 parts of an antioxidant, 2-6 parts of PE wax, 1.5-5 parts of E-51 epoxy resin, 18-25 parts of shrimp shell powder and 14-22 parts of modified cellulose.
2. The square-bottomed compression bag according to claim 1, comprising, by weight, 35 to 45 parts of high-density polyethylene, 25 to 30 parts of rubber powder, 25 to 35 parts of borosilicate mineral powder, 3 to 8 parts of alpha-phase alumina powder, 15 to 25 parts of polyurethane, 3 to 5 parts of a plasticizer, 3 to 6 parts of an antioxidant, 2 to 6 parts of PE wax, 1.5 to 5 parts of E-51 epoxy resin, 20 to 25 parts of shrimp shell powder, and 15 to 22 parts of modified cellulose.
3. The square-bottomed compressed bag according to claim 2, comprising 40 parts by weight of high-density polyethylene, 28 parts by weight of rubber powder, 30 parts by weight of borosilicate mineral powder, 5 parts by weight of alpha-phase alumina powder, 20 parts by weight of polyurethane, 4 parts by weight of plasticizer, 5 parts by weight of antioxidant, 4 parts by weight of PE wax, 3 parts by weight of E-51 epoxy resin, 22 parts by weight of shrimp shell powder and 20 parts by weight of modified cellulose.
4. The square-bottomed compression bag according to claim 2, characterized by comprising, by weight, 41 parts of high-density polyethylene, 29 parts of rubber powder, 31 parts of borosilicate mineral powder, 7 parts of alpha-phase alumina powder, 21 parts of polyurethane, 4 parts of a plasticizer, 5 parts of an antioxidant, 5 parts of PE wax, 4 parts of E-51 epoxy resin, 23 parts of shrimp shell powder and 20 parts of modified cellulose.
5. The square-bottomed compression bag according to claim 1, wherein the shrimp shell powder is a shrimp shell powder obtained by cleaning, drying and pulverizing a shrimp shell of a crayfish, a shrimp or a shrimp.
6. A square bottom compressed bag according to claim 1 wherein the polyurethane is a soft polyurethane and the plasticizer is one or more of a fatty acid ester, a polyol ester or an alkyl sulfonate.
7. The square-bottomed compression bag according to claim 1, wherein the borosilicate mineral powder has a particle size of 10 to 100 μm.
8. The square-bottomed compressed bag according to claim 1, wherein the α -phase alumina powder has a particle size of 50 to 130 μm.
9. The production method of the square-bottom compressed bag is characterized by comprising the following steps of:
step 1: selecting high-density polyethylene, rubber powder, borosilicate mineral powder, alpha-phase alumina powder, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin, shrimp shell powder and modified cellulose;
step 2: crushing borosilicate mineral powder, alpha-phase alumina powder and shrimp shell powder, putting the crushed powder into a heater, introducing nitrogen to dry the powder, cooling and grinding the powder into powder;
and step 3: adding high-density polyethylene, polyurethane, a plasticizer, an antioxidant, PE wax, E-51 epoxy resin and modified cellulose into the mixture obtained in the step 2, and melting the mixture at a high temperature;
and 4, step 4: putting the molten raw materials into a film blowing machine, and blowing the film at a high temperature to prepare a compressed bag group piece;
and 5: and (5) pressing and sealing the 3 compressed bag groups into a square-bottom compressed bag, and finishing the preparation of the square-bottom compressed bag.
10. The method of claim 9, wherein in the step 2, the borosilicate mineral powder, the α -phase alumina powder and the shrimp shell powder are pulverized, mixed and ground to have a particle size of 1 to 45 μm.
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