CN103642159A - PVDF self-reinforced composite material - Google Patents
PVDF self-reinforced composite material Download PDFInfo
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- CN103642159A CN103642159A CN201310554324.5A CN201310554324A CN103642159A CN 103642159 A CN103642159 A CN 103642159A CN 201310554324 A CN201310554324 A CN 201310554324A CN 103642159 A CN103642159 A CN 103642159A
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- pvdf
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- reinforced composite
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Abstract
The invention discloses a PVDF self-reinforced composite material. PVDF fiber is utilized to enhance the PVDF resin, wherein a mass fraction of the PVDF fiber is 15-45%, a mass fraction of the PVDF resin is 55-85%, and a sum of the two raw materials is 100%. The material provided by the invention can greatly raise the mechanical property and the friction performance of PVDF while without introducing other fillers; the properties of the materials can be further raised after other fillers are introduced; the PVDF self-reinforced material has various concrete forms, and can be freely selected as required; a preparation method is not limited, and can be self-selected as required; and the composite material can be suitable in the aviation, spaceflight, machinery, electron and vehicle fields.
Description
Technical field
The present invention relates to polymer composites field, be specifically related to a kind of PVDF self-reinforced composite material.
Background technology
PVDF, english abbreviation poly (vinylidene fluoride), mainly refer to the multipolymer of vinylidene fluoride homopolymer or vinylidene and other a small amount of fluorine-containing vinyl monomers, it has the characteristic of fluoro-resin and resins for universal use concurrently, except having good chemical resistance, high thermal resistance, scale resistance, weathering resistance, resistance to x radiation x performance, also there is the properties such as piezoelectricity, dielectricity, pyroelectricity.
But it is poor that pure PVDF also exists mechanical property, the shortcomings such as poor dimensional stability.
Summary of the invention
For addressing the above problem, the invention discloses a kind of PVDF self-reinforced composite material.
A PVDF self-reinforced composite material, utilizes PVDF fiber to strengthen PVDF resin, and wherein, the shared massfraction of PVDF fiber is 15-45%, and the shared massfraction of PVDF resin is 55-85%, and two kinds of raw material sums are 100%.
Further, the shared massfraction of PVDF fiber is 15-25%, and the shared massfraction of PVDF resin is 75-85%, and two kinds of raw material sums are 100%.
Further, described PVDF fiber is macrofiber, staple fibre or fabric.
Further, described PVDF resin comprises PVDF modified resin.
Further, in described matrix material, also can add weighting material, the 1-3% that the add-on of weighting material is total mass.
Positively effect of the present invention is:
1, when not introducing other weighting materials, can significantly improve mechanical property and the frictional behaviour of PVDF; After introducing other weighting materials, can further improve material property;
2, PVDF self-reinforced material specific form of the present invention is various, can freely select as required; Preparation method is also unrestricted, can select voluntarily as required.
3, this matrix material is applicable to fields such as Aeronautics and Astronautics, machinery, electronics, automobiles.
Embodiment
Below in conjunction with embodiment, describe technical scheme of the present invention in detail, but protection domain is not so limited.
1 one kinds of PVDF self-reinforced materials of embodiment
Get 50 grams of PVDF resin dissolves in 20mL DMSO, the long PVDF macrofiber of 3mm that is cut into of getting 10 gram of 200 dawn mixes with it, take out and in supercritical co equipment, propose solvent DMSO, and recycling use, PVDF fiber self-enhancement PVDF resin obtained.
2 one kinds of PVDF self-reinforced materials of embodiment
The PVDF that gets 100 gram of 200 dawn is cut into the long PVDF fiber of 4mm and is placed in fine mouthful of adding of twin screw extruder, gets 250 grams of PVDF resins in the major ingredient mouth of twin screw extruder, makes these two kinds of samples extruding pelletization after melt blending in forcing machine.
3 one kinds of PVDF self-reinforced materials of embodiment
Get in the DMSO solution that 1 gram of nanometer silver adds the PVDF that 85 gram mass marks are 40%, stir, then 35 grams of PVDF tissue layer are immersed, then take out dry, repeatedly above-mentioned steps until on PVDF fabric PVDF resin/nanometer silver mixture content be 60%, obtain preimpregnation sample, a certain amount of preimpregnation sample is put into mould, keep its direction of warp and weft identical.
Claims (5)
1. a PVDF self-reinforced composite material, is characterized in that: utilize PVDF fiber to strengthen PVDF resin, wherein, the shared massfraction of PVDF fiber is 15-45%, and the shared massfraction of PVDF resin is 55-85%, and two kinds of raw material sums are 100%.
2. a kind of PVDF self-reinforced composite material according to claim 1, is characterized in that: the shared massfraction of PVDF fiber is 15-25%, and the shared massfraction of PVDF resin is 75-85%, and two kinds of raw material sums are 100%.
3. a kind of PVDF self-reinforced composite material according to claim 1, is characterized in that: described PVDF fiber is macrofiber, staple fibre or fabric.
4. a kind of PVDF self-reinforced composite material according to claim 1, is characterized in that: described PVDF resin comprises PVDF modified resin.
5. a kind of PVDF self-reinforced composite material according to claim 1, is characterized in that: in described matrix material, also can add weighting material, the 1-3% that the add-on of weighting material is total mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554324.5A CN103642159A (en) | 2013-11-11 | 2013-11-11 | PVDF self-reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554324.5A CN103642159A (en) | 2013-11-11 | 2013-11-11 | PVDF self-reinforced composite material |
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| CN103642159A true CN103642159A (en) | 2014-03-19 |
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| CN201310554324.5A Pending CN103642159A (en) | 2013-11-11 | 2013-11-11 | PVDF self-reinforced composite material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546158A (en) * | 1983-07-23 | 1985-10-08 | Kureha Kagaku Kogyo Kabushiki Kaisha | Vinylidene fluoride resin fiber and process for producing the same |
| JPS6170072A (en) * | 1984-09-07 | 1986-04-10 | 呉羽化学工業株式会社 | Production of fluorocarbon resin fiber structure |
| CN102634147A (en) * | 2012-04-11 | 2012-08-15 | 南京航空航天大学 | Polyvinylidene fluoride based composite frictional material for traveling wave type revolving ultrasonic motor and preparation method thereof |
| CN103147224A (en) * | 2013-02-22 | 2013-06-12 | 哈尔滨工业大学深圳研究生院 | Polyvinylidene-fluoride-based composite fibrous membrane, preparation method and application thereof |
-
2013
- 2013-11-11 CN CN201310554324.5A patent/CN103642159A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546158A (en) * | 1983-07-23 | 1985-10-08 | Kureha Kagaku Kogyo Kabushiki Kaisha | Vinylidene fluoride resin fiber and process for producing the same |
| JPS6170072A (en) * | 1984-09-07 | 1986-04-10 | 呉羽化学工業株式会社 | Production of fluorocarbon resin fiber structure |
| CN102634147A (en) * | 2012-04-11 | 2012-08-15 | 南京航空航天大学 | Polyvinylidene fluoride based composite frictional material for traveling wave type revolving ultrasonic motor and preparation method thereof |
| CN103147224A (en) * | 2013-02-22 | 2013-06-12 | 哈尔滨工业大学深圳研究生院 | Polyvinylidene-fluoride-based composite fibrous membrane, preparation method and application thereof |
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Application publication date: 20140319 |
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