CN114409984A - Preparation method of composite wax for EVA shoe material - Google Patents
Preparation method of composite wax for EVA shoe material Download PDFInfo
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- CN114409984A CN114409984A CN202111570443.0A CN202111570443A CN114409984A CN 114409984 A CN114409984 A CN 114409984A CN 202111570443 A CN202111570443 A CN 202111570443A CN 114409984 A CN114409984 A CN 114409984A
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- wax
- composite
- eva
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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
Abstract
The invention relates to a preparation method of composite wax for an EVA shoe material. The composite wax is prepared from the following raw materials, wherein the raw materials comprise polyethylene wax, paraffin, monoglyceride and EVA wax, and the preparation method comprises the following steps: (1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid; (2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously; (3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles; (4) and (7) packaging a finished product. The invention reduces the process flow, has simple preparation and low production cost, improves the product demoulding effect and the product percent of pass, thereby achieving the effect of improving the product demoulding effect.
Description
Technical Field
The invention relates to a lubricant for an EVA (ethylene-vinyl acetate) foaming sole material, in particular to a preparation method of composite wax for an EVA shoe material.
Background
At present, shoe material factories need to add different types of lubricants when producing EVA foaming sole materials, so that the factories are very complicated in producing ingredients. Secondly, the quality of the lubricant is not identified enough by manufacturers, and the lubricant with poor quality is bought, so that the demoulding effect of the product is influenced, and a lot of waste products are generated.
Disclosure of Invention
The invention aims to provide the preparation method of the composite wax for the EVA shoe material, which has the advantages of simple preparation, low production cost, improved product demoulding effect and improved product qualification rate.
The technical scheme of the invention is as follows: a preparation method of composite wax for EVA shoe materials comprises the following steps:
(1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid;
(2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously;
(3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles;
(4) and (7) packaging a finished product.
Preferably, the raw materials comprise, by mass, 80-90 parts of polyethylene wax, 5-10 parts of paraffin wax, 1-5 parts of monoglyceride and 4-5 parts of EVA wax.
Preferably, the mass parts of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 88 parts of polyethylene wax, 7 parts of paraffin wax, 4 parts of monoglyceride and 4.5 parts of EVA wax.
Preferably, the heating temperature of the reaction kettle is controlled to be 150-160 ℃, and the reaction time is 3 hours under constant-temperature stirring.
Preferably, the size of the composite wax particles is 2-3 mm.
The invention has the beneficial effects that: the composite wax prepared by the processing method can meet the requirements of most lubricants and reduce the production cost of manufacturers, monoglyceride is added in the processing technology, and the monoglyceride has poor compatibility with EVA resin because of belonging to vegetable fatty acid, and can be separated out of the surface of a product when being added into the composite wax for preparation and forming, thereby achieving the effect of improving the demoulding effect of the product.
Detailed Description
Example 1
A preparation method of composite wax for EVA shoe materials comprises the following steps:
(1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid;
(2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously;
(3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles;
(4) and (7) packaging a finished product.
The raw materials of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 80 parts by mass, 5 parts by mass of the paraffin wax, 1 part by mass of the monoglyceride and 4 parts by mass of the EVA wax.
The heating temperature of the reaction kettle is controlled at 150 ℃, and the reaction time is 3 hours under constant-temperature stirring.
The size of the composite wax particles is 2 mm.
Example 2
A preparation method of composite wax for EVA shoe materials comprises the following steps:
(1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid;
(2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously;
(3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles;
(4) and (7) packaging a finished product.
The raw materials of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 88 parts by mass, 7 parts by mass, 4 parts by mass and 4.5 parts by mass of the EVA wax.
The heating temperature of the reaction kettle is controlled at 158 ℃, and the reaction time is 3 hours under constant-temperature stirring.
The size of the composite wax particles is 2.5 mm.
Example 3
A preparation method of composite wax for EVA shoe materials comprises the following steps:
(1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid;
(2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously;
(3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles;
(4) and (7) packaging a finished product.
The raw materials of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 90 parts by mass, 10 parts by mass of the paraffin wax, 5 parts by mass of the monoglyceride and 5 parts by mass of the EVA wax.
The heating temperature of the reaction kettle is controlled at 160 ℃, and the reaction time is 3 hours under constant-temperature stirring.
The size of the composite wax particles is 3 mm.
Claims (5)
1. A preparation method of composite wax for EVA shoe materials is characterized by comprising the following steps: the composite wax is prepared from the following raw materials, wherein the raw materials comprise polyethylene wax, paraffin, monoglyceride and EVA wax, and the preparation method comprises the following steps:
(1) preparing polyethylene wax liquid, taking white flaky or granular finished polyethylene wax, and heating, melting and cracking to obtain the polyethylene wax liquid;
(2) preparing composite wax, putting paraffin, monoglyceride and EVA wax into a reaction kettle, conveying the polyethylene wax liquid prepared in the step (1) into the reaction kettle through a material pump, heating, and stirring simultaneously;
(3) forming composite wax particles, namely cooling the composite wax prepared in the step (2), and then sending the cooled composite wax into a centrifugal granulator to prepare the composite wax particles;
(4) and (7) packaging a finished product.
2. The preparation method of the composite wax for the EVA shoe material according to claim 1, wherein the preparation method comprises the following steps: the raw materials of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 80-90 parts by mass, 5-10 parts by mass of the paraffin wax, 1-5 parts by mass of the monoglyceride and 4-5 parts by mass of the EVA wax.
3. The preparation method of the composite wax for the EVA shoe material according to claim 2, wherein the preparation method comprises the following steps: the raw materials of the polyethylene wax, the paraffin wax, the monoglyceride and the EVA wax are 88 parts by mass, 7 parts by mass, 4 parts by mass and 4.5 parts by mass of the EVA wax.
4. The preparation method of the composite wax for the EVA shoe material according to claim 1, wherein the preparation method comprises the following steps: the heating temperature of the reaction kettle is controlled to be 150-160 ℃, and the reaction time is 3 hours under constant-temperature stirring.
5. The preparation method of the composite wax for the EVA shoe material according to claim 1, wherein the preparation method comprises the following steps: the size of the composite wax particles is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570443.0A CN114409984A (en) | 2021-12-21 | 2021-12-21 | Preparation method of composite wax for EVA shoe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570443.0A CN114409984A (en) | 2021-12-21 | 2021-12-21 | Preparation method of composite wax for EVA shoe material |
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| Publication Number | Publication Date |
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| CN114409984A true CN114409984A (en) | 2022-04-29 |
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| CN202111570443.0A Pending CN114409984A (en) | 2021-12-21 | 2021-12-21 | Preparation method of composite wax for EVA shoe material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100024281A1 (en) * | 2007-02-16 | 2010-02-04 | Daniel Wayne Lemke | Wax compositions and methods of preparing wax compositions |
| CN103254480A (en) * | 2013-05-29 | 2013-08-21 | 青岛联康油脂制品有限公司 | Rubber protecting wax and preparation method thereof |
| CN109021369A (en) * | 2018-06-26 | 2018-12-18 | 福建鑫邦新材料科技有限公司 | A kind of dedicated EVA color masterbatch of the footwear material that coloring is strong and preparation method thereof |
| CN113337031A (en) * | 2021-06-17 | 2021-09-03 | 江苏斯尔邦石化有限公司 | Preparation method of EVA special material |
-
2021
- 2021-12-21 CN CN202111570443.0A patent/CN114409984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100024281A1 (en) * | 2007-02-16 | 2010-02-04 | Daniel Wayne Lemke | Wax compositions and methods of preparing wax compositions |
| CN103254480A (en) * | 2013-05-29 | 2013-08-21 | 青岛联康油脂制品有限公司 | Rubber protecting wax and preparation method thereof |
| CN109021369A (en) * | 2018-06-26 | 2018-12-18 | 福建鑫邦新材料科技有限公司 | A kind of dedicated EVA color masterbatch of the footwear material that coloring is strong and preparation method thereof |
| CN113337031A (en) * | 2021-06-17 | 2021-09-03 | 江苏斯尔邦石化有限公司 | Preparation method of EVA special material |
Non-Patent Citations (1)
| Title |
|---|
| 邢玉清: "《简明塑料大全》", 哈尔滨工业大学出版社 * |
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