CN112409674A - Foaming preparation process of high-hardness PE material - Google Patents
Foaming preparation process of high-hardness PE material Download PDFInfo
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- CN112409674A CN112409674A CN202011327495.0A CN202011327495A CN112409674A CN 112409674 A CN112409674 A CN 112409674A CN 202011327495 A CN202011327495 A CN 202011327495A CN 112409674 A CN112409674 A CN 112409674A
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- 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
- C08J9/06—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 chemical blowing agent
- C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- 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
- C08J9/0066—Use of inorganic compounding ingredients
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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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- 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
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- 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
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- 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
- C08J2423/08—Copolymers of ethene
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
Abstract
The invention discloses a foaming preparation process of a high-hardness PE material, which comprises the following steps of; A. drying, namely drying the raw materials by using a dryer; B. the ingredients comprise the following raw materials: PE90 parts, POE10 parts, foaming agent 0.5 part, cross-linking agent 0.6 part, filler 3 parts and lubricant 1 part; C. mixing materials, namely putting the prepared raw materials into a mixer, and mixing the raw materials by the mixer to uniformly mix the raw materials; D. and C, mixing materials, namely adding the uniformly mixed raw materials in the step C into a screw extruder for heating and extruding. According to the invention, the hardness of the finished PE material can be improved by adding POE into PE, and the hardness of the PE material prepared by the process can meet the hardness requirement of some use places, so that the practicability of the PE material can be improved.
Description
Technical Field
The invention relates to a foaming process, in particular to a foaming preparation process of a high-hardness PE material.
Background
PE is polyethylene, is a thermoplastic resin prepared by polymerizing ethylene, also comprises a copolymer of ethylene and a small amount of alpha-olefin in industry, and has the advantages of no odor, no toxicity, wax-like hand feeling, excellent low temperature resistance, good chemical stability, resistance to corrosion of most of acid and alkali, insolubility in common solvents at normal temperature, small water absorption and excellent electrical insulation.
The finished product prepared by the existing foaming process of the PE material has low hardness and is difficult to meet the requirements of some use places on the hardness, thereby influencing the practicability of the PE material. Therefore, we improve the above and propose a foaming preparation process of high-hardness PE material.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a foaming preparation process of a high-hardness PE material, which comprises the following steps;
A. drying, namely drying the raw materials by using a dryer;
B. the ingredients comprise the following raw materials: PE90 parts, POE10 parts, foaming agent 0.5 part, cross-linking agent 0.6 part, filler 3 parts and lubricant 1 part;
C. mixing materials, namely putting the prepared raw materials into a mixer, and mixing the raw materials by the mixer to uniformly mix the raw materials;
D. c, extruding, namely adding the uniformly mixed raw materials in the step C into a screw extruder for heating and extruding;
E. cooling and shaping, namely cooling the material extruded by the screw extruder by using a cooling device to shape the material;
F. and E, cutting the material cooled and shaped in the step E into the required size by using a cutting device.
As a preferable technical scheme of the invention, the foaming agent is an AC foaming agent, and the crosslinking agent is a dicumyl peroxide crosslinking agent.
As a preferred technical solution of the present invention, the filler is zinc oxide, and the lubricant is zinc stearate.
As a preferable technical scheme of the invention, the drying temperature of the dryer is 80 ℃, and the mixing time of the mixer is thirty minutes.
As a preferable technical scheme of the invention, the temperature of the zone 1 of the screw extruder is 160 ℃, the temperature of the zone 2 is 180 ℃, the temperature of the zone 3 is 195 ℃, the temperature of the zone 4 is 195 ℃ and the temperature of the zone 5 is 195 ℃, and the rotating speed of the screw extruder is 90%.
In a preferred embodiment of the present invention, the cooling temperature of the cooling device is 30 degrees.
The invention has the beneficial effects that: this kind of foaming preparation technology of high rigidity PE material can improve the off-the-shelf hardness of PE material through the mode that adds POE in PE, can satisfy the requirement of some use places to hardness in the aspect of its hardness of PE material of preparation through this technology to can improve the practicality of PE material, this technology can get rid of the moisture in the raw materials through the drying before the raw materials mixes, can reduce the moisture and lead to the hardened and hard condition of raw materials, thereby can improve the homogeneity that the raw materials mixes, and then can improve off-the-shelf quality and hardness.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a foaming preparation process of a high-hardness PE material according to the invention;
FIG. 2 is a diagram of ingredients of the foaming preparation process of the high-hardness PE material.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-2, the foaming preparation process of the high-hardness PE material of the present invention comprises the following steps;
A. drying, namely drying the raw materials by using a dryer;
B. the ingredients comprise the following raw materials: PE90 parts, POE10 parts, foaming agent 0.5 part, cross-linking agent 0.6 part, filler 3 parts and lubricant 1 part;
C. mixing materials, namely putting the prepared raw materials into a mixer, and mixing the raw materials by the mixer to uniformly mix the raw materials;
D. mixing materials, namely adding the uniformly mixed raw materials in the step C into a screw extruder for heating and extruding;
E. cooling and shaping, namely cooling the material extruded by the screw extruder by using a cooling device to shape the material;
F. and E, cutting the material cooled and shaped in the step E into the required size by using a cutting device.
The foaming agent is an AC foaming agent, the crosslinking agent is a dicumyl peroxide crosslinking agent, and the AC foaming agent has the characteristics of stable performance, non-flammability, no pollution, no toxicity, no odor, no corrosion to a mold, no dyeing to a product, adjustable decomposition temperature, no influence on curing and forming speed and the like. The product can be foamed under normal pressure or under pressure, and has uniform continuous foaming and ideal pore structure.
Wherein, the filler is zinc oxide, the lubricant is zinc stearate, and the zinc stearate can facilitate the extrusion of the material by the screw extruder.
Wherein, desiccator drying temperature is 80 degrees, and blendor compounding time is thirty minutes, can get rid of the moisture in the raw materials through the drying, can reduce the moisture and lead to the hardened and hard condition of raw materials to can improve the homogeneity that the raw materials mixes, and then can improve off-the-shelf quality and hardness.
Wherein the temperature of the zone 1 of the screw extruder is 160 ℃, the temperature of the zone 2 is 180 ℃, the temperature of the zone 3 is 195 ℃, the temperature of the zone 4 is 195 ℃, the temperature of the zone 5 is 195 ℃, and the rotating speed of the screw extruder is 90%.
Wherein, cooling device cooling temperature is 30 degrees, can accelerate the cooling design after the material is extruded through cooling device to can improve the efficiency that the material was stereotyped.
During operation, at first use the desiccator to dry the raw materials, then with PE90 parts, POE10 parts, foamer 0.5 part, cross-linking agent 0.6 part, 3 parts of filler and 1 part of emollient are put into the blendor, mix the raw materials through the blendor, make raw materials misce bene, then add the raw materials of misce bene in the screw extruder and heat and extrude, use cooling device to cool off the material that the screw extruder extruded, make the material design, it can to cut into required size with the material of cooling design with cutting equipment at last.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A foaming preparation process of a high-hardness PE material is characterized by comprising the following steps;
A. drying, namely drying the raw materials by using a dryer;
B. the ingredients comprise the following raw materials: PE90 parts, POE10 parts, foaming agent 0.5 part, cross-linking agent 0.6 part, filler 3 parts and lubricant 1 part;
C. mixing materials, namely putting the prepared raw materials into a mixer, and mixing the raw materials by the mixer to uniformly mix the raw materials;
D. c, extruding, namely adding the uniformly mixed raw materials in the step C into a screw extruder for heating and extruding;
E. cooling and shaping, namely cooling the material extruded by the screw extruder by using a cooling device to shape the material;
F. and E, cutting the material cooled and shaped in the step E into the required size by using a cutting device.
2. The process of claim 1, wherein the foaming agent is an AC foaming agent, and the crosslinking agent is a dicumyl peroxide crosslinking agent.
3. The process for preparing a high-hardness PE material by foaming according to claim 1, wherein the filler is zinc oxide, and the lubricant is zinc stearate.
4. The process for preparing a high-hardness PE material by foaming according to claim 1, wherein the drying temperature of the dryer is 80 ℃, and the mixing time of the mixer is thirty minutes.
5. The process for preparing a high-hardness PE material by foaming according to claim 1, wherein the temperature of the screw extruder in zone 1 is 160 ℃, the temperature of the screw extruder in zone 2 is 180 ℃, the temperature of the screw extruder in zone 3 is 195 ℃, the temperature of the screw extruder in zone 4 is 195 ℃ and the temperature of the screw extruder in zone 5 is 195 ℃, and the rotation speed of the screw extruder is 90%.
6. The process for preparing a high-hardness PE material by foaming according to claim 1, wherein the cooling temperature of the cooling device is 30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327495.0A CN112409674A (en) | 2020-11-24 | 2020-11-24 | Foaming preparation process of high-hardness PE material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011327495.0A CN112409674A (en) | 2020-11-24 | 2020-11-24 | Foaming preparation process of high-hardness PE material |
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| CN112409674A true CN112409674A (en) | 2021-02-26 |
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| CN202011327495.0A Pending CN112409674A (en) | 2020-11-24 | 2020-11-24 | Foaming preparation process of high-hardness PE material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408823A (en) * | 2013-07-18 | 2013-11-27 | 华南师范大学 | Highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material and preparation method thereof |
| CN103694542A (en) * | 2013-12-30 | 2014-04-02 | 广州石头造环保科技有限公司 | High-fill high-resilience soft expanded polyethylene material and preparation method thereof |
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2020
- 2020-11-24 CN CN202011327495.0A patent/CN112409674A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408823A (en) * | 2013-07-18 | 2013-11-27 | 华南师范大学 | Highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material and preparation method thereof |
| CN103694542A (en) * | 2013-12-30 | 2014-04-02 | 广州石头造环保科技有限公司 | High-fill high-resilience soft expanded polyethylene material and preparation method thereof |
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Application publication date: 20210226 |