CN104448075B - For the method preparing heat stability Kynoar - Google Patents
For the method preparing heat stability Kynoar Download PDFInfo
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- CN104448075B CN104448075B CN201410731738.5A CN201410731738A CN104448075B CN 104448075 B CN104448075 B CN 104448075B CN 201410731738 A CN201410731738 A CN 201410731738A CN 104448075 B CN104448075 B CN 104448075B
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Abstract
The invention discloses a kind of method for preparing heat stability Kynoar, comprise the steps: 1) reactor puts into 0.9 weight portion hydrogen peroxide, 1.3 parts by weight of inorganic aqueous slkalis, mix homogeneously, put into 17.4 weight portion HFC-143a solvents, 1.7 weight portion isobutyryl chloride solution again, 7.5 DEG C of stirring reactions 38 minutes；2) being passed through 5.2 parts by weight of polypropylene acid sodium solutions, 83 weight portion vinylidene fluoride monomers, 4.3 weight portion 2,2,3 trimethylpentanes again, 21 DEG C of stirring reactions, pressure drops to terminate reaction during below 0.18MPa；3) filter, wash, be dried, obtain powder Kynoar.Vinylidene prepared by the present invention has good heat stability and machinability, can meet the production technologies such as injection, extrusion and membrane.
Description
Technical field
The present invention relates to the method for preparing heat stability Kynoar.
Background technology
Existing vinylidene material, its heat stability and machinability have much room for improvement, and are not the most well positioned to meet the production technologies such as injection, extrusion and membrane.
Summary of the invention
It is an object of the invention to provide a kind of method for preparing heat stability Kynoar, its vinylidene prepared has good heat stability and machinability, can meet the production technologies such as injection, extrusion and membrane.
For achieving the above object, the technical scheme is that a kind of method for preparing heat stability Kynoar of design, comprise the steps:
1) reactor puts into 0.9 weight portion hydrogen peroxide, 1.3 parts by weight of inorganic aqueous slkalis, mix homogeneously, then puts into 17.4 weight portion HFC-143a solvents, 1.7 weight portion isobutyryl chloride solution ,-7.5 DEG C of stirring reactions 38 minutes；
2) being passed through 5.2 parts by weight of polypropylene acid sodium solutions, 83 weight portion vinylidene fluoride monomers, 4.3 weight portion 2，2，3-trimethyl-pentane again, 21 DEG C of stirring reactions, pressure drops to terminate reaction during below 0.18MPa；
3) filter, wash, be dried, obtain powder Kynoar.
Advantages of the present invention and having the beneficial effects that: providing a kind of method for preparing heat stability Kynoar, its vinylidene prepared has good heat stability and machinability, can meet injection, extrude and the production technology such as membrane.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
The technical scheme that the present invention is embodied as is:
A kind of method for preparing heat stability Kynoar, comprises the steps:
1) reactor puts into 0.9 weight portion hydrogen peroxide, 1.3 parts by weight of inorganic aqueous slkalis, mix homogeneously, then puts into 17.4 weight portion HFC-143a solvents, 1.7 weight portion isobutyryl chloride solution ,-7.5 DEG C of stirring reactions 38 minutes；
2) being passed through 5.2 parts by weight of polypropylene acid sodium solutions, 83 weight portion vinylidene fluoride monomers, 4.3 weight portion 2，2，3-trimethyl-pentane again, 21 DEG C of stirring reactions, pressure drops to terminate reaction during below 0.18MPa；
3) filter, wash, be dried, obtain powder Kynoar.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (1)
1. for the method preparing heat stability Kynoar, it is characterised in that comprise the steps:
1) reactor puts into 0.9 weight portion hydrogen peroxide, 1.3 parts by weight of inorganic aqueous slkalis, mix homogeneously, then puts into 17.4 weight portion HFC-143a solvents, 1.7 weight portion isobutyryl chloride solution ,-7.5 DEG C of stirring reactions 38 minutes；
2) being passed through 5.2 parts by weight of polypropylene acid sodium solutions, 83 weight portion vinylidene fluoride monomers, 4.3 weight portion 2，2，3-trimethyl-pentane again, 21 DEG C of stirring reactions, pressure drops to terminate reaction during below 0.18MPa；
3) filter, wash, be dried, obtain powder Kynoar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731738.5A CN104448075B (en) | 2014-12-06 | 2014-12-06 | For the method preparing heat stability Kynoar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731738.5A CN104448075B (en) | 2014-12-06 | 2014-12-06 | For the method preparing heat stability Kynoar |
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| Publication Number | Publication Date |
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| CN104448075A CN104448075A (en) | 2015-03-25 |
| CN104448075B true CN104448075B (en) | 2017-01-04 |
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| CN201410731738.5A Active CN104448075B (en) | 2014-12-06 | 2014-12-06 | For the method preparing heat stability Kynoar |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440517A (en) * | 2015-12-16 | 2016-03-30 | 常熟丽源膜科技有限公司 | PVDF ultrafilter membrane |
| CN105363354A (en) * | 2015-12-16 | 2016-03-02 | 常熟丽源膜科技有限公司 | Hydrophilic hollow fiber ultrafiltration membrane |
| CN105435649A (en) * | 2015-12-16 | 2016-03-30 | 常熟丽源膜科技有限公司 | PVDF hollow fiber film |
| CN105461837A (en) * | 2015-12-18 | 2016-04-06 | 常熟三爱富振氟新材料有限公司 | Preparation method of polyvinylidene fluoride ultrafiltration membrane |
| CN105413489A (en) * | 2015-12-18 | 2016-03-23 | 常熟三爱富振氟新材料有限公司 | Preparation method of PVDF (Polyvinylidene Fluoride) hollow fiber membrane |
| CN105561800A (en) * | 2015-12-18 | 2016-05-11 | 常熟三爱富振氟新材料有限公司 | Method for preparing PVDF (polyvinylidene fluoride) ultra-filtration membranes |
| CN105413490A (en) * | 2015-12-18 | 2016-03-23 | 常熟三爱富振氟新材料有限公司 | Preparation method of PVDF (Polyvinylidene Fluoride) separating membrane |
| CN105435650A (en) * | 2015-12-18 | 2016-03-30 | 常熟三爱富振氟新材料有限公司 | Preparation method of polyvinylidene fluoride separation membrane |
| CN105536570A (en) * | 2015-12-18 | 2016-05-04 | 常熟三爱富振氟新材料有限公司 | Preparation method of hollow fiber ultrafiltration membrane |
| CN105597563A (en) * | 2015-12-18 | 2016-05-25 | 常熟三爱富振氟新材料有限公司 | Preparation method of vinyl polyvinylidene fluoride hollow fiber membrane |
| CN105413491A (en) * | 2015-12-18 | 2016-03-23 | 常熟三爱富振氟新材料有限公司 | Preparing method of hydrophobic PVDF ultrafiltration membrane |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151457A (en) * | 2014-08-11 | 2014-11-19 | 东莞市长安东阳光铝业研发有限公司 | Polyvinylidene fluoride preparation method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151457A (en) * | 2014-08-11 | 2014-11-19 | 东莞市长安东阳光铝业研发有限公司 | Polyvinylidene fluoride preparation method |
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| CN104448075A (en) | 2015-03-25 |
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Effective date of registration: 20171115 Address after: 215500 Jiangsu city of Suzhou province Changshou City Hai Yu Xin materials Industrial Park (Haifeng Fushan Road No. 16) Patentee after: Changshu three Ai Fuzhenfu novel material company limited Address before: 215500 Jiangsu city of Suzhou province Changshou City Hai Yu Xin materials Industrial Park (Haifeng Fushan Road No. 16) Patentee before: CHANGSHU LIYUAN MEMBRANE TECHNOLOGY CO., LTD. |