CN110903434A - Preparation method of polyethylene pearl cotton - Google Patents
Preparation method of polyethylene pearl cotton Download PDFInfo
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- CN110903434A CN110903434A CN201811085370.4A CN201811085370A CN110903434A CN 110903434 A CN110903434 A CN 110903434A CN 201811085370 A CN201811085370 A CN 201811085370A CN 110903434 A CN110903434 A CN 110903434A
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- polyethylene
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- initiator
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/08—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms
- C08F255/10—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms on to butene polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
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- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- 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)
- Materials Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
A preparation method of polyethylene pearl wool relates to the field of packaging materials, in particular to a preparation method of polyethylene pearl wool. It comprises ethylene, butylene copolymer, initiator, low-density polyethylene, liquefied petroleum gas, color master batch and additive; putting the low-density polyethylene mixed liquefied petroleum gas, the color master and the additive into a stirring barrel, and heating and stirring; heating and stirring for a period of time to obtain resin, connecting an air pump to the head of the extruder, and injecting air into the resin; and (3) cooling the resin containing the gas by using cold water after the resin is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled. After the technical scheme is adopted, the invention has the beneficial effects that: compared with the traditional material, the material has better performance, lower cost, higher grade, beautiful appearance, no environmental pollution and repeated recycling. And deep processing can also be carried out, and only a pearl cotton laminating machine and a laminating machine are needed to be prepared, and the surface of the EPE sheet is coated with the HDPE film.
Description
Technical Field
The invention relates to the field of packaging materials, in particular to a preparation method of polyethylene pearl wool.
Background
The polyethylene foam cotton is a non-crosslinked closed-cell structure, is also called EPE pearl cotton, and is a novel environment-friendly packaging material. It is made up by using low-density polyethylene resin through the process of physical foaming process to produce countless independent bubbles. Overcomes the defects of easy breakage, deformation and poor restorability of common foaming glue. The material has the advantages of water resistance, moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, cyclic reconstruction, environmental protection, strong impact resistance and the like, and also has good chemical resistance. Is an ideal substitute of the traditional packaging material.
The packaging material is widely applied to packaging of high-grade fragile gift packages such as automobile cushions, throw pillows, electronic appliances, instruments and meters, computers, sound equipment, medical appliances, industrial control cabinets, hardware lamp decorations, artware, glass, ceramics, household appliances, spraying, furniture and furniture, wine, resin and the like, inner packages of hardware products, toys, melons and fruits, leather shoes, daily necessities and the like, and express packages. The excellent performance is more obvious after the color antistatic agent and the flame retardant are added. The appearance is delicate, and the static electricity and the ignition are effectively avoided
The bonded articles of EPE and various fabrics are good interior materials for various vehicles and homes. The EPE pearl cotton and aluminum foil or aluminum-plated film composite product has excellent capability of reflecting infrared rays and ultraviolet rays, and is a necessary product for shading the sun of refrigerators of chemical equipment and camping equipment automobiles. The pipe is widely used in the industries of air conditioners, children's vehicles, toys for children, furniture, water heating and ventilation and the like.
The traditional pearl wool has high manufacturing cost, and the product is doped with certain harmful substances, so that the pearl wool is not only harmful to human health, but also can not be recycled.
Disclosure of Invention
The invention aims to provide a preparation method of polyethylene pearl cotton aiming at the defects and shortcomings of the prior art, which changes the original formula, adopts liquefied petroleum and gas as raw materials, has better performance, lower cost, higher grade and elegant appearance compared with the traditional materials, does not pollute the environment, and can be repeatedly recycled.
In order to realize the purpose, the preparation method of the polyethylene pearl cotton comprises the following raw materials in parts by weight: it comprises 90-100 parts of ethylene, 5-10 parts of butene copolymer, 2-5 parts of initiator, 85-100 parts of low density polyethylene, 3-5 parts of liquefied petroleum gas, 2-5 parts of color master batch and 2-5 parts of additive.
The method comprises the following steps: putting ethylene, a butylene copolymer and an initiator into a reaction kettle to carry out high-pressure compression polymerization reaction;
step two: removing unreacted ethylene from the product obtained in the first step by using a separator, then carrying out melt extrusion and drying to obtain low-density polyethylene;
step three: putting the low-density polyethylene mixed liquefied petroleum gas, the color master and the additive into a stirring barrel, and heating and stirring;
step four: heating and stirring for a period of time to obtain resin, extruding the resin by an extruder, connecting an air pump to the head of the extruder, and injecting air into the resin;
step five: and (3) cooling the resin containing the gas by using cold water after the resin is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled.
The initiator is a titanium initiator.
The additive is a butane foaming catalyst.
The stirring temperature of the third step is 70-80 ℃.
The stirring time of the fourth step is 2-5 hours, and the pressure of an air pump is 3-5 MPA.
After the technical scheme is adopted, the invention has the beneficial effects that: compared with the traditional material, the material has better performance, lower cost, higher grade, beautiful appearance, no environmental pollution and repeated recycling. And deep processing can also be carried out, and only a pearl cotton laminating machine and a laminating machine are needed to be prepared, and the surface of the EPE sheet is coated with the HDPE film.
Detailed Description
Example 1
The following preparation process is adopted in the embodiment: it comprises 95 portions of ethylene, 7.5 portions of butylene copolymer, 3.5 portions of initiator, 92 portions of low-density polyethylene, 4 portions of liquefied petroleum gas, 3.5 portions of color master batch and 3.5 portions of additive; the method comprises the following steps: putting ethylene, a butylene copolymer and an initiator into a reaction kettle to carry out high-pressure compression polymerization reaction; step two: removing unreacted ethylene from the product obtained in the first step by using a separator, then carrying out melt extrusion and drying to obtain low-density polyethylene; step three: putting low-density polyethylene mixed liquefied petroleum gas, color master batch and additive into a stirring barrel, and heating and stirring at 75 ℃; step four: heating and stirring for 3.5 hours to obtain resin, extruding the resin by an extruder, connecting an air pump to the head of the extruder, and injecting air into the resin; step five: and (3) cooling the resin containing the gas by using cold water after the resin is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled.
Example 2
The following preparation process is adopted in the embodiment: the ethylene-propylene copolymer comprises 90 parts of ethylene, 5 parts of a butylene copolymer, 2 parts of an initiator, 85 parts of low-density polyethylene, 3 parts of liquefied petroleum gas, 2 parts of color master batch and 2 parts of an additive; the method comprises the following steps: putting ethylene, a butylene copolymer and an initiator into a reaction kettle to carry out high-pressure compression polymerization reaction; step two: removing unreacted ethylene from the product obtained in the first step by using a separator, then carrying out melt extrusion and drying to obtain low-density polyethylene; step three: putting the low-density polyethylene mixed liquefied petroleum gas, the color master batch and the additive into a stirring barrel, and heating and stirring at 70 ℃; step four: heating and stirring for 2 hours to obtain resin, extruding the resin by an extruder, connecting an air pump to the head of the extruder, and injecting air into the resin; step five: and (3) cooling the resin containing the gas by using cold water after the resin is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled.
Example 3
The following preparation process is adopted in the embodiment: the ethylene-propylene copolymer resin comprises 100 parts of ethylene, 10 parts of a butylene copolymer, 5 parts of an initiator, 100 parts of low-density polyethylene, 5 parts of liquefied petroleum gas, 5 parts of color master batch and 5 parts of an additive; the method comprises the following steps: putting ethylene, a butylene copolymer and an initiator into a reaction kettle to carry out high-pressure compression polymerization reaction; step two: removing unreacted ethylene from the product obtained in the first step by using a separator, then carrying out melt extrusion and drying to obtain low-density polyethylene; step three: putting the low-density polyethylene mixed liquefied petroleum gas, the color master batch and the additive into a stirring barrel, and heating and stirring at 80 ℃; step four: heating and stirring for 5 hours to obtain resin, extruding the resin by an extruder, connecting an air pump to the head of the extruder, and injecting air into the resin; step five: and (3) cooling the resin containing the gas by using cold water after the resin is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled.
After the technical scheme is adopted, the invention has the beneficial effects that: compared with the traditional material, the material has better performance, lower cost, higher grade, beautiful appearance, no environmental pollution and repeated recycling. And deep processing can also be carried out, and only a pearl cotton laminating machine and a laminating machine are needed to be prepared, and the surface of the EPE sheet is coated with the HDPE film.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered by the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The polyethylene pearl wool is characterized by comprising the following raw materials in parts by weight: it comprises 90-100 parts of ethylene, 5-10 parts of butene copolymer, 2-5 parts of initiator, 85-100 parts of low density polyethylene, 3-5 parts of liquefied petroleum gas, 2-5 parts of color master batch and 2-5 parts of additive.
2. The preparation method of the polyethylene pearl wool is characterized by comprising the following steps: putting ethylene, a butene copolymer and an initiator into a reaction kettle to perform high-pressure compression polymerization reaction; step two, removing unreacted ethylene from the product obtained in the step one by using a separator, then carrying out melt extrusion and drying to obtain low-density polyethylene; putting the low-density polyethylene mixed liquefied petroleum gas, the color master and the additive into a stirring barrel, and heating and stirring; step four, heating and stirring for a period of time to obtain resin, extruding the resin through an extruder, connecting an air pump to the head of the extruder, and injecting air into the resin; and step five, cooling by using cold water after the resin containing the gas is extruded out of the film opening, and obtaining the polyethylene pearl cotton after the resin is completely cooled.
3. The polyethylene pearl wool according to claim 1, which is prepared from the following components in parts by weight: 95 parts of ethylene, 7.5 parts of butene copolymer, 3.5 parts of initiator, 92 parts of low-density polyethylene, 4 parts of liquefied petroleum gas, 3.5 parts of color master batch and 3.5 parts of additive.
4. The polyethylene pearl wool according to claim 1, which is prepared from the following components in parts by weight: 90 parts of ethylene, 5 parts of butene copolymer, 2 parts of initiator, 85 parts of low-density polyethylene, 3 parts of liquefied petroleum gas, 2 parts of color master batch and 2 parts of additive.
5. The polyethylene pearl wool according to claim 1, which is prepared from the following components in parts by weight: 100 parts of ethylene, 10 parts of butene copolymer, 5 parts of initiator, 100 parts of low-density polyethylene, 5 parts of liquefied petroleum gas, 5 parts of color master batch and 5 parts of additive.
6. The method for preparing polyethylene pearl wool according to claim 2, wherein the method comprises the following steps: the initiator is a titanium initiator.
7. The method for preparing polyethylene pearl wool according to claim 2, wherein the method comprises the following steps: the additive is a butane foaming catalyst.
8. The method for preparing polyethylene pearl wool according to claim 2, wherein the method comprises the following steps: the stirring temperature of the third step is 70-80 ℃.
9. The method for preparing polyethylene pearl wool according to claim 2, wherein the method comprises the following steps: the stirring time of the fourth step is 2-5 hours, and the pressure of an air pump is 3-5 MPA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085370.4A CN110903434A (en) | 2018-09-18 | 2018-09-18 | Preparation method of polyethylene pearl cotton |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085370.4A CN110903434A (en) | 2018-09-18 | 2018-09-18 | Preparation method of polyethylene pearl cotton |
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| CN110903434A true CN110903434A (en) | 2020-03-24 |
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| CN201811085370.4A Pending CN110903434A (en) | 2018-09-18 | 2018-09-18 | Preparation method of polyethylene pearl cotton |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103407A (en) * | 1993-08-23 | 1995-06-07 | 住友化学工业株式会社 | Ethylene-alpha-olefin copolymer and molded article thereof |
| CN102286165A (en) * | 2011-06-22 | 2011-12-21 | 郎溪县天成包装材料有限公司 | Expandable polyethylene (EPE) pearl wool |
| CN102850620A (en) * | 2012-08-30 | 2013-01-02 | 苏州九鼎珍珠棉有限公司 | Environment-friendly single EPE sheet with high foaming capacity |
| CN107629284A (en) * | 2017-08-24 | 2018-01-26 | 南通通联海绵塑料有限公司 | A kind of preparation method of antistatic foaming EPE pearl wool |
-
2018
- 2018-09-18 CN CN201811085370.4A patent/CN110903434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103407A (en) * | 1993-08-23 | 1995-06-07 | 住友化学工业株式会社 | Ethylene-alpha-olefin copolymer and molded article thereof |
| CN102286165A (en) * | 2011-06-22 | 2011-12-21 | 郎溪县天成包装材料有限公司 | Expandable polyethylene (EPE) pearl wool |
| CN102850620A (en) * | 2012-08-30 | 2013-01-02 | 苏州九鼎珍珠棉有限公司 | Environment-friendly single EPE sheet with high foaming capacity |
| CN107629284A (en) * | 2017-08-24 | 2018-01-26 | 南通通联海绵塑料有限公司 | A kind of preparation method of antistatic foaming EPE pearl wool |
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