CN1032943A - A kind of polyethylene foams - Google Patents
A kind of polyethylene foams Download PDFInfo
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- CN1032943A CN1032943A CN 88104061 CN88104061A CN1032943A CN 1032943 A CN1032943 A CN 1032943A CN 88104061 CN88104061 CN 88104061 CN 88104061 A CN88104061 A CN 88104061A CN 1032943 A CN1032943 A CN 1032943A
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- polyethylene foams
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- major ingredient
- auxiliary material
- compression set
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of polyethylene foams belongs to polymer substance is processed into vesicular goods class.Present polyethylene foams is to be major ingredient with the polyvinyl resin, allocates whipping agent, linking agent, fire retardant into and makes through foaming.It has the performance of many excellences, but its compression set rate is big.General its foam of 40～45 times, its compression set rate is about 12%.The invention provides and contain the ethylene-vinyl acetate interpolymer in a kind of major ingredient, contain the polyethylene foams of toughener in the auxiliary material.This plastics have advantages such as compression set is little.Can be used as ocean vestlifejacket lining material.
Description
A kind of polyethylene foams belongs to polymer substance is processed into vesicular goods class.
Existing polyethylene foams is to be major ingredient with the polyvinyl resin, and Cellmic C 121 is a whipping agent, and dicumyl peroxide is a linking agent, allocates materials such as fire retardant, an auxiliary agent into, handles through foaming and makes.This polyethylene foams has many superior performances, as have good toughness, flexible, chemical resistant properties, exhausted electrically, thermal insulation etc.Its weak point is that the permanent modification rate of compression is big, and it compresses permanent modification rate about 12% 40～45 times of general foaies.Can not satisfy the needs of some special dimensions.As the lining material of ocean vestlifejacket, require foam to compress permanent modification and be less than 6%.
The object of the present invention is to provide a kind of little polyethylene foams of permanent modification that compresses.
The object of the present invention is achieved like this: except that containing polyvinyl resin, also contain the ethylene-vinyl acetate interpolymer in its major ingredient.Main (weight percent) composed as follows:
Polyvinyl resin 60～70%
Ethene-vinyl acetate 30～40%
The ester interpolymer
Increased toughener in its auxiliary material, toughener can be light calcium carbonate, magnesiumcarbonate, magnesia or gypsum.In per 100 portions of major ingredients, add following auxiliary material:
3～5 parts of tougheners
17.5～20 parts of Cellmic C 121s
0.3～0.5 part of dicumyl peroxide
0.4～0.6 part in zinc oxide
2.5～3.5 parts of chlorinated paraffins
2～5 parts of antimonous oxides
Supplementary material is dropped into banburying chamber successively, carry out banburying through three temperature sections.To put into mill mixing three times through the blank of banburying again.Then through once, secondary pressurization, foamable make polyethylene foams.
This polyethylene foams except that the advantage with existing polyethylene foams, also has following advantage:
1, the permanent modification rate of compression is little, and 40～45 times of foaies compress permanent modification less than 6%.The lining material that can be used as the ocean vestlifejacket.
2, can save polyethylene raw material and auxiliary agent thereof, improve the utilization ratio of supplementary material effectively, reduce the cost of product.
The invention will be further described for example below:
Major ingredient is pressed 70% polyvinyl resin, 30% ethylene-vinyl acetate interpolymer preparation.Each hundred portions of major ingredient is allocated following material into as auxiliary material: 3 parts of precipitated calcium carbonates, 18 parts of Cellmic C 121s, 0.35 part of dicumyl peroxide, 0.4 part in zinc oxide, 3 parts of chlorinated paraffins, 2.6 parts of antimonous oxides.Wherein precipitated calcium carbonate is that toughener, Cellmic C 121 are that whipping agent, dicumyl peroxide are that linking agent, zinc oxide are that blowing promotor, chlorinated paraffin and antimonous oxide are fire retardant.
Former, auxiliary material is made polyethylene foams through following process steps.
Former, auxiliary material are prepared the back respectively drop into banburying chamber, carry out banburying through 105 ± 5 ℃, 110 ± 5 ℃, 120 ± 5 ℃ three temperature sections, to put into mill mixing three times through the blank of banburying again, drop into the one step foaming machine then, carry out one step foaming, make the one step foaming body through 35～50 minutes pressurized, heated, the one step foaming body is put into the second time of foaming machine heated through 40～50 minutes and be pressed into the second time of foaming body, after cooling, developing a film promptly can be made into the permanent modification rate of compression less than 6% polyethylene foams.
Claims (2)
1, a kind of little polyethylene foams of permanent modification rate that compresses, it is made through foaming by major ingredient and auxiliary material, it is characterized in that:
1. contain in the major ingredient (weight percent):
Polyvinyl resin 60～70%
Ethene-vinyl acetate fat interpolymer 30～40%
2. per 100 portions of major ingredients are allocated following auxiliary material (weight) into:
In precipitated calcium carbonate, magnesiumcarbonate, magnesia or the gypsum a kind of 3～5 parts
17.5～20 parts of Cellmic C 121s
0.3～0.5 part of dicumyl peroxide
0.4～0.6 part in zinc oxide
2.5～3.5 parts of chlorinated paraffins
2～5 parts of antimonous oxides.
2, polyethylene foams according to claim 1 is characterized in that: described toughener is excellent with precipitated calcium carbonate, and its optimum amount is 3 parts of per 100 portions of major ingredients.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104061 CN1032943A (en) | 1988-06-30 | 1988-06-30 | A kind of polyethylene foams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104061 CN1032943A (en) | 1988-06-30 | 1988-06-30 | A kind of polyethylene foams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1032943A true CN1032943A (en) | 1989-05-17 |
Family
ID=4832869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88104061 Pending CN1032943A (en) | 1988-06-30 | 1988-06-30 | A kind of polyethylene foams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032943A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322088C (en) * | 2003-08-22 | 2007-06-20 | 日东电工株式会社 | Foamed dustproof material and dustproof structure using foamed dustproof material |
| CN100398590C (en) * | 2003-09-02 | 2008-07-02 | 日东电工株式会社 | Expandable composition for filling use, expandable member for filling use and expanded article for filling use |
| CN100432127C (en) * | 2000-03-17 | 2008-11-12 | 陶氏环球技术公司 | Prepn. of macrocellular acoustic foam |
| CN100569839C (en) * | 2007-09-12 | 2009-12-16 | 四川大学 | Ozone oxidation improves the method for EVA/PE blending foaming material performance |
| CN102174223A (en) * | 2011-03-15 | 2011-09-07 | 常州大学 | Flame-retardant foamed polyethylene material and preparation method thereof |
| CN101519504B (en) * | 2009-04-02 | 2012-07-18 | 中国科学院长春应用化学研究所 | Method for preparing polyethylene foam material by taking water as foaming agent |
| CN102828598A (en) * | 2012-09-29 | 2012-12-19 | 陈伟文 | Preparation method of flame-retardant product soft pack |
| CN105061864A (en) * | 2015-08-03 | 2015-11-18 | 苏州新区佳合塑胶有限公司 | LDPE high-foaming calcium-plastic sheet material |
| CN105820425A (en) * | 2016-05-20 | 2016-08-03 | 太仓善融信息服务有限公司 | Production method of rigid foamed plastic swim ring |
| CN105820426A (en) * | 2016-05-20 | 2016-08-03 | 太仓善融信息服务有限公司 | Hard foamed plastic swimming ring |
| CN108676517A (en) * | 2018-08-20 | 2018-10-19 | 长虹美菱股份有限公司 | A kind of refrigerator water pipe head sealing element and its preparation process |
-
1988
- 1988-06-30 CN CN 88104061 patent/CN1032943A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432127C (en) * | 2000-03-17 | 2008-11-12 | 陶氏环球技术公司 | Prepn. of macrocellular acoustic foam |
| CN1322088C (en) * | 2003-08-22 | 2007-06-20 | 日东电工株式会社 | Foamed dustproof material and dustproof structure using foamed dustproof material |
| CN100398590C (en) * | 2003-09-02 | 2008-07-02 | 日东电工株式会社 | Expandable composition for filling use, expandable member for filling use and expanded article for filling use |
| CN100569839C (en) * | 2007-09-12 | 2009-12-16 | 四川大学 | Ozone oxidation improves the method for EVA/PE blending foaming material performance |
| CN101519504B (en) * | 2009-04-02 | 2012-07-18 | 中国科学院长春应用化学研究所 | Method for preparing polyethylene foam material by taking water as foaming agent |
| CN102174223A (en) * | 2011-03-15 | 2011-09-07 | 常州大学 | Flame-retardant foamed polyethylene material and preparation method thereof |
| CN102174223B (en) * | 2011-03-15 | 2012-12-26 | 常州大学 | Flame-retardant foamed polyethylene material and preparation method thereof |
| CN102828598A (en) * | 2012-09-29 | 2012-12-19 | 陈伟文 | Preparation method of flame-retardant product soft pack |
| CN105061864A (en) * | 2015-08-03 | 2015-11-18 | 苏州新区佳合塑胶有限公司 | LDPE high-foaming calcium-plastic sheet material |
| CN105820425A (en) * | 2016-05-20 | 2016-08-03 | 太仓善融信息服务有限公司 | Production method of rigid foamed plastic swim ring |
| CN105820426A (en) * | 2016-05-20 | 2016-08-03 | 太仓善融信息服务有限公司 | Hard foamed plastic swimming ring |
| CN108676517A (en) * | 2018-08-20 | 2018-10-19 | 长虹美菱股份有限公司 | A kind of refrigerator water pipe head sealing element and its preparation process |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |