CN106012045A - Method for preparing polyvinylidene fluoride melt spinning fiber - Google Patents
Method for preparing polyvinylidene fluoride melt spinning fiber Download PDFInfo
- Publication number
- CN106012045A CN106012045A CN201610655798.2A CN201610655798A CN106012045A CN 106012045 A CN106012045 A CN 106012045A CN 201610655798 A CN201610655798 A CN 201610655798A CN 106012045 A CN106012045 A CN 106012045A
- Authority
- CN
- China
- Prior art keywords
- spinning
- temperature
- pvdf
- fiber
- polyvinylidene fluoride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
- D01F6/12—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a method for preparing polyvinylidene fluoride (PVDF) melt spinning fiber. Spinning of PVDF fiber is conducted with a double-screw spinning machine, and technological parameters are as follows: first-district temperature is 210-215 DEG C, second-district temperature is 215-220 DEG C, spinning nozzle temperature is 215-220 DEG C, drafting-district temperature is 115-120 DEG C, screw speed is 30-35 r/min, and drafting multiple is 6. The method has the advantages that synthesis process is simple, reaction conditions are mild, production cost is low, and repeatability is high.
Description
Technical field
The present invention relates to material synthesis method, a kind of Kynoar melts the preparation method spinning fiber.
Background technology
Kynoar (PVDF) is white powder linear crystalline polymer, and its constitutional repeating unit is
—CH2—CF2, it is a kind of high comprehensive performance, broad-spectrum thermoplastic engineering plastic.CH2And CF2The special molecular structure being alternately present makes PVDF resin have the characteristic of fluororesin and resins for universal use concurrently, except having good chemical resistance, anti-absorption contaminative, oxidative resistance, against weather and radiation resistance, the also property such as piezoelectricity and pyroelectricity.At present, PVDF has been successfully applied to the fields such as chemical industry equipment, electric, piezoelectric, lithium battery and building coating.But, research in terms of research to PVDF material is concentrated mainly on membrane material at present, research to fiber is less, solwution method and dry-wet method are mainly prepared PVDF hollow-fibre membrane and are studied by Chinese scholars, the domestic document about melt spun fibre is nearly no, the most also only has the U.S. and the Japan Patent report of minority.
Summary of the invention
The technical problem to be solved is to provide a kind of Kynoar to melt the preparation method spinning fiber, it is provided that a kind of new synthetic method.
The synthetic method that the present invention uses: use twin screw spinning-drawing machine spinning PVDF fiber, technological parameter: district's temperature is 210-215 DEG C；Two district's temperature are 215-220 DEG C；Spinneret temperature is 215-220 DEG C；Draw zone temperature is 115-120 DEG C；Screw speed is 30-35r/min；Drafting multiple is 6 times.
The invention has the beneficial effects as follows: synthesis technique is simple, reaction condition is gentle, and production cost is relatively low, favorable repeatability.
Detailed description of the invention
Further illustrating present disclosure below in conjunction with example, as known by the technical knowledge, the present invention also can be described by other the scheme without departing from the technology of the present invention feature, the most all within the scope of the present invention or equivalent the scope of the invention in
Change and be all included in the invention.
Embodiment 1:
Raw material and equipment: Kynoar (PVDF toner, 230 DEG C, under 2.16kg load melt flow index be about 16.4g/10min), Shanghai Dong Fu Chinese workers Science and Technology Ltd..
Minitype twin-screw extrusion machine (SJSZ-10A type)；Device for spinning, Rui Ming plastics machinery manufacturing company of Wuhan City.
Kynoar melts the preparation method spinning fiber: use twin screw spinning-drawing machine spinning PVDF fiber, technological parameter: district's temperature is 210 DEG C；Two district's temperature are 215 DEG C；Spinneret temperature is 215 DEG C；Draw zone temperature is 115 DEG C；Screw speed is 30r/min；Drafting multiple is 6 times.
Embodiment 2:
Raw material and equipment: Kynoar (PVDF toner, 230 DEG C, under 2.16kg load melt flow index be about 16.4g/10min), Shanghai Dong Fu Chinese workers Science and Technology Ltd..
Minitype twin-screw extrusion machine (SJSZ-10A type)；Device for spinning, Rui Ming plastics machinery manufacturing company of Wuhan City.
Kynoar melts the preparation method spinning fiber: use twin screw spinning-drawing machine spinning PVDF fiber, technological parameter: district's temperature is 210 DEG C；Two district's temperature are 215 DEG C；Spinneret temperature is 215 DEG C；Draw zone temperature is 115 DEG C；Screw speed is 30r/min；Drafting multiple is 6 times.
Performance test: PVDF melting point resin be resin slicer fusing point be 173 DEG C, degree of crystallinity is 42.3%；Melt index test shows, along with the rising of temperature, the melt flow rate (MFR) of PVDF section is gradually increased, and its mobile performance improves.Mechanical commutation draft intensity enhancing, PVDF fiber linear density reduces, and the amplitude of change also reduces, and the thinnest monofilament can arrive 9.6tex.
Along with the increase of drafting multiple, the fusing point of PVDF melt spun fibre presents and first reduces the trend increased afterwards, and degree of crystallinity presents the trend of increase.Meanwhile, the formation increasing beneficially β phase of drafting multiple, drafting multiple is the biggest, and α phase is the easiest to β phase in version.When drafting multiple is 6 times, degree of crystallinity is the highest.
PVDF fiber is along with the raising of drafting multiple, and its fracture strength presents the trend of increase, and elongation at break presents the trend of first increases and then decreases.When drafting multiple is 6 times, the mechanical property of PVDF fiber is best, and fracture strength reaches 31.2cN/tex, and degree of crystallinity is 52.3%.
Claims (1)
1. a Kynoar melts the preparation method spinning fiber, it is characterised in that: use twin screw spinning-drawing machine spinning PVDF fiber, technological parameter: district's temperature is 210-215 DEG C；Two district's temperature are 215-220 DEG C；Spinneret temperature is 215-220 DEG C；Draw zone temperature is 115-120 DEG C；Screw speed is 30-35r/min；Drafting multiple is 6 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655798.2A CN106012045A (en) | 2016-08-11 | 2016-08-11 | Method for preparing polyvinylidene fluoride melt spinning fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655798.2A CN106012045A (en) | 2016-08-11 | 2016-08-11 | Method for preparing polyvinylidene fluoride melt spinning fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106012045A true CN106012045A (en) | 2016-10-12 |
Family
ID=57134759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610655798.2A Pending CN106012045A (en) | 2016-08-11 | 2016-08-11 | Method for preparing polyvinylidene fluoride melt spinning fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106012045A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584413A (en) * | 1978-12-22 | 1980-06-25 | Kureha Chem Ind Co Ltd | Production of fiber made from polyvinylidene fluoride resin |
| US20100204427A1 (en) * | 2008-02-26 | 2010-08-12 | Shandong Icd High Performance Fibres Co., Ltd. | 10-50 g/d high strength polyethylene fiber and preparation method thereof |
| CN103537203A (en) * | 2013-10-28 | 2014-01-29 | 山东招金膜天有限责任公司 | Thermally-induced phase separation polyvinylidene fluoride hollow fiber membrane and preparation method thereof |
| CN103752179A (en) * | 2014-01-09 | 2014-04-30 | 天津工业大学 | Preparation method of hydrophobic hollow fiber membrane |
-
2016
- 2016-08-11 CN CN201610655798.2A patent/CN106012045A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584413A (en) * | 1978-12-22 | 1980-06-25 | Kureha Chem Ind Co Ltd | Production of fiber made from polyvinylidene fluoride resin |
| US20100204427A1 (en) * | 2008-02-26 | 2010-08-12 | Shandong Icd High Performance Fibres Co., Ltd. | 10-50 g/d high strength polyethylene fiber and preparation method thereof |
| CN103537203A (en) * | 2013-10-28 | 2014-01-29 | 山东招金膜天有限责任公司 | Thermally-induced phase separation polyvinylidene fluoride hollow fiber membrane and preparation method thereof |
| CN103752179A (en) * | 2014-01-09 | 2014-04-30 | 天津工业大学 | Preparation method of hydrophobic hollow fiber membrane |
Non-Patent Citations (1)
| Title |
|---|
| 邢剑 等: "聚偏氟乙烯融纺纤维的制备与表征研究", 《化工新型材料》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |