CN105001375A - Method for preparing ETFE ethylene-polytetrafluoroethylene copolymer - Google Patents
Method for preparing ETFE ethylene-polytetrafluoroethylene copolymer Download PDFInfo
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- CN105001375A CN105001375A CN201510462166.XA CN201510462166A CN105001375A CN 105001375 A CN105001375 A CN 105001375A CN 201510462166 A CN201510462166 A CN 201510462166A CN 105001375 A CN105001375 A CN 105001375A
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Abstract
The invention discloses a method for preparing an ETFE ethylene-polytetrafluoroethylene copolymer. The method for preparing the ETFE ethylene-polytetrafluoroethylene copolymer comprises the steps that copolymerization is conducted on polyvinyl fluoride and ethylene in an aqueous phase or a nonaqueous phase or the mixed phase of the aqueous phase and the nonaqueous phase, so that the ETFE ethylene-polytetrafluoroethylene copolymer is obtained; when the copolymerization is conducted in the aqueous phase, a surface active agent or inorganic matter is used as an initiator; when the copolymerization is conducted in the nonaqueous phase, superoxide is used as an initiator. In this way, by the adoption of the method, no toxic and harmful substance is used in the operation process, pollution to the environment is small, the reaction condition is not harsh, and preparation cost is low; the method can be well applied and popularized, the obtained product is high in quality and high in purity and can be directly used, aftertreatment is not needed, and using is convenient.
Description
Technical field
The present invention relates to polymeric material field, particularly relate to a kind of preparation method of ETFE ethylene tetrafluoroethylene multipolymer.
Background technology
ETFE ethylene tetrafluoroethylene multipolymer is the most tough fluoroplastics, it is while maintaining good heat-resisting, the chemical resistance of PTFE and electrical insulation capability, radiation hardness and mechanical property have to be improved significantly, and tensile strength can reach 50MPa, close to 2 times of tetrafluoroethylene.ETFE ethylene tetrafluoroethylene multipolymer pole is applicable in water, fuel, oil, acid or alkali environment, and use temperature scope is more practical comparatively wide, and steady temperature is set as between-65 DEG C to 150 DEG C usually, and still hard outstanding when very low temperature, its embrittlement temperature is low to moderate-100 DEG C.ETFE ethylene tetrafluoroethylene multipolymer has to be applied very widely, but the preparation method of ETFE ethylene tetrafluoroethylene multipolymer operates difficulty now, is difficult to obtain the high product of purity.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of ETFE ethylene tetrafluoroethylene multipolymer, and the method is simple to operate, good product quality.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the preparation method providing a kind of ETFE ethylene tetrafluoroethylene multipolymer, comprising step is: fluorinated ethylene propylene and ethene are carried out copolyreaction in aqueous phase, nonaqueous phase or the mixed phase of the two and obtains ETFE ethylene tetrafluoroethylene multipolymer, when copolyreaction is carried out in aqueous phase, adopt tensio-active agent or inorganics as initiator, when copolyreaction is carried out in nonaqueous phase, adopt superoxide as initiator.
In a preferred embodiment of the present invention, described Examples of non-aqueous solvents is fluorine carbide.
In a preferred embodiment of the present invention, when copolyreaction is carried out in aqueous phase, adopt fluorochemical surfactant or inorganic peroxide as initiator.
In a preferred embodiment of the present invention, when copolyreaction is carried out in nonaqueous phase, add the molecular-weight average that chain regulator controls multipolymer.
The invention has the beneficial effects as follows: the preparation method of ETFE ethylene tetrafluoroethylene multipolymer of the present invention, substantially hazardous and noxious substances can not be used in its operating process, environmental pollution is little, reaction conditions is not harsh and preparation cost cheap, can well apply, the quality product obtained is high and purity good, can directly apply, do not need to carry out aftertreatment, use convenience.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
There is provided a kind of preparation method of ETFE ethylene tetrafluoroethylene multipolymer, comprising step is: fluorinated ethylene propylene and ethene are carried out copolyreaction in aqueous phase, nonaqueous phase or the mixed phase of the two and obtains ETFE ethylene tetrafluoroethylene multipolymer.Described Examples of non-aqueous solvents can be chosen as fluorine carbide.When copolyreaction is carried out in aqueous phase, adopt inorganic peroxide as initiator.When copolyreaction is carried out in nonaqueous phase, adopt superoxide as initiator, add the molecular-weight average that chain regulator controls multipolymer.
Embodiment two:
There is provided a kind of preparation method of ETFE ethylene tetrafluoroethylene multipolymer, comprising step is: fluorinated ethylene propylene and ethene are carried out copolyreaction in aqueous phase, nonaqueous phase or the mixed phase of the two and obtains ETFE ethylene tetrafluoroethylene multipolymer.Described Examples of non-aqueous solvents can be chosen as fluorine carbide.When copolyreaction is carried out in aqueous phase, adopt fluorochemical surfactant as initiator.When copolyreaction is carried out in nonaqueous phase, adopt superoxide as initiator, add the molecular-weight average that chain regulator controls multipolymer.
The invention has the beneficial effects as follows:
One, the operating process in described preparation method can not use hazardous and noxious substances substantially, and environmental pollution is little;
Two, the reaction conditions of described preparation method is harsh and preparation cost cheap, can well apply;
Three, the quality product obtained is high and purity good, can directly apply, and does not need to carry out aftertreatment, uses convenience.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the preparation method of an ETFE ethylene tetrafluoroethylene multipolymer, it is characterized in that, comprising step is: fluorinated ethylene propylene and ethene are carried out copolyreaction in aqueous phase, nonaqueous phase or the mixed phase of the two and obtains ETFE ethylene tetrafluoroethylene multipolymer, when copolyreaction is carried out in aqueous phase, adopt tensio-active agent or inorganics as initiator, when copolyreaction is carried out in nonaqueous phase, adopt superoxide as initiator.
2. the preparation method of ETFE ethylene tetrafluoroethylene multipolymer according to claim 1, is characterized in that, described Examples of non-aqueous solvents is fluorine carbide.
3. the preparation method of ETFE ethylene tetrafluoroethylene multipolymer according to claim 1, is characterized in that, when copolyreaction is carried out in aqueous phase, adopts fluorochemical surfactant or inorganic peroxide as initiator.
4. the preparation method of ETFE ethylene tetrafluoroethylene multipolymer according to claim 1, is characterized in that, when copolyreaction is carried out in nonaqueous phase, adds the molecular-weight average that chain regulator controls multipolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462166.XA CN105001375A (en) | 2015-07-31 | 2015-07-31 | Method for preparing ETFE ethylene-polytetrafluoroethylene copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462166.XA CN105001375A (en) | 2015-07-31 | 2015-07-31 | Method for preparing ETFE ethylene-polytetrafluoroethylene copolymer |
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| CN105001375A true CN105001375A (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510462166.XA Pending CN105001375A (en) | 2015-07-31 | 2015-07-31 | Method for preparing ETFE ethylene-polytetrafluoroethylene copolymer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597354A (en) * | 2009-06-12 | 2009-12-09 | 江苏华奥高科技发展有限公司 | High-performance insulating corrosion-resistance fluorine materials and manufacture method thereof |
| CN103524659A (en) * | 2013-09-29 | 2014-01-22 | 山东华氟化工有限责任公司 | Tetrafluoroethylene and vinyl copolymer emulsion and preparation method thereof |
| CN104151754A (en) * | 2014-08-15 | 2014-11-19 | 上海三爱富新材料股份有限公司 | High-fluidity ethylene-tetrafluoroethylene copolymer composition and preparation method thereof |
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2015
- 2015-07-31 CN CN201510462166.XA patent/CN105001375A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597354A (en) * | 2009-06-12 | 2009-12-09 | 江苏华奥高科技发展有限公司 | High-performance insulating corrosion-resistance fluorine materials and manufacture method thereof |
| CN103524659A (en) * | 2013-09-29 | 2014-01-22 | 山东华氟化工有限责任公司 | Tetrafluoroethylene and vinyl copolymer emulsion and preparation method thereof |
| CN104151754A (en) * | 2014-08-15 | 2014-11-19 | 上海三爱富新材料股份有限公司 | High-fluidity ethylene-tetrafluoroethylene copolymer composition and preparation method thereof |
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Application publication date: 20151028 |
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