CN105733181A - High-strength and high-modulus polyetheretherketone composite material and preparation method therefor - Google Patents
High-strength and high-modulus polyetheretherketone composite material and preparation method therefor Download PDFInfo
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- CN105733181A CN105733181A CN201410747376.9A CN201410747376A CN105733181A CN 105733181 A CN105733181 A CN 105733181A CN 201410747376 A CN201410747376 A CN 201410747376A CN 105733181 A CN105733181 A CN 105733181A
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Abstract
The invention relates to a high-strength and high-modulus polyetheretherketone composite material and a preparation method therefor. The material disclosed by the invention is mainly applied to radar housings, radio equipment hoods, motor parts and high-strength and high-modulus heat-resistant components and parts of aircrafts. Innovations of the technical process for preparing the composite material are embodied as follows: a polyetheretherketone material is reinforced through mutually superposing carbon fibers and glass fibers, the high-strength and high-modulus of the polyetheretherketone composite material are improved by using the characteristic of complementarity of the carbon fibers and the glass fibers, the glass fiber/carbon fiber/polyetheretherketone composite material is subjected to blended extrusion by a twin-screw extruder, drawing, cooling and pelleting are carried out, and then, the modified polyetheretherketone composite material with excellent high-strength and high-modulus is obtained. In the fields of communications and transport and aerospace industry, compared with the traditional metallic materials, the polyetheretherketone composite material with excellent high-strength and high-modulus has the advantages that the high rigidity and high modulus are good, meanwhile, the weather resistance is excellent, the composite material can be used in long term at the high temperature of 200 DEG C, the cost of the composite material is reduced, and the like.
Description
Technical field
The present invention relates to field of polymer technology, be specifically related to a kind of high intensity, high-modulus PEEK composite and preparation method thereof, be mainly used in radome, radio covers, the heat-resisting parts etc. of high intensity, high-modulus on motor part and aircraft.
Background technology
This patent is with PEEK resin for base material, and glass fibre, carbon fiber are reinforcing material, under the effect adding suitable adjuvants, is carried out melt blending extrusion, develops suitable in high rigidity, high-modulus PEEK composite, and injection mo(u)lding.The market demand according to domestic PEEK and performance indications, develop the PEEK composite material special of excellent combination property, while meeting performance, composite is carried out the interpolation of glass, to reduce technical costs, produces the composite of high added value, high rate of gross profit for enterprise.
Summary of the invention
The present invention is prepared for a kind of high intensity, high-modulus PEEK composite, product prepared by this material is mainly used in radome, radio covers, the heat-resisting parts etc. of high intensity, high-modulus on motor part and aircraft, utilize the complementary characteristic of short glass fiber and carbon fibre to increase the intensity of PEEK material.This composite not only has high intensity, high-modulus, and has fabulous weatherability, the advantage such as life-time service the cost reducing composite under 200 DEG C of high temperature.
Technical scheme
Above-mentioned a kind of high intensity, high-modulus PEEK composite preparation method be:
Step one, carrying out at 120-140 DEG C PEEK 12 hours drying, at nano assistant 100 DEG C dry 5 hours, carbon fibre chemically carries out pretreatment.
Step 2, the PEEK by good for pretreatment, short glass fiber, carbon are fine, nano assistant is put in high-speed mixer, and stirring 5-7 minute at normal temperatures, speed is 500-600 revolutions per second.
Step 3, mixed for step 2 material is joined in the barrel of double screw extruder, through melt blending extrusion, water-cooled, air knife cooling, pelletize, homogenizing, packaging.Wherein, the temperature of double screw extruder is set to: back segment temperature is 360-365 DEG C, and stage casing and front-end temperature are 365-370 DEG C, and screw speed is 200-240r/min, and main feeding rotating speed is 12-15r/min.
The problem that after the invention solves traditional single PEEK enhancing modified, impact strength reduces, utilize short glass fiber, carbon fibre to strengthen system to be effectively improved the hot strength of composite, bending strength, bending modulus, add inorganic nano class filling additive and can improve product frictional property simultaneously, and make material have good rigidity and weatherability, it is satisfied with the application of high intensity goods.
Specific embodiment
Embodiment 1:(presses mass fraction) polyether-ether-ketone 69 parts, glass 15 parts, fine 15 parts of carbon, auxiliary agent 1 part.
Embodiment 2:(presses mass fraction) polyether-ether-ketone 69 parts, glass 10 parts, fine 20 parts of carbon, auxiliary agent 1 part.
Embodiment 3:(presses mass fraction) polyether-ether-ketone 69 parts, glass 20 parts, fine 10 parts of carbon, auxiliary agent 1 part.
Embodiment 4:(presses mass fraction) polyether-ether-ketone 79 parts, glass 10 parts, fine 10 parts of carbon, auxiliary agent 1 part.
Embodiment 5:(presses mass fraction) polyether-ether-ketone 59 parts, glass 20 parts, fine 20 parts of carbon, auxiliary agent 1 part.
Twin-screw extruder barrel temperature one district temperature: 350-3600C, two district temperature 350-3600C, three district temperature 355-3650C, four district temperature 355-3650C, five district temperature 360-3700C, six district temperature 360-3700C, pressure is 15-20MPa, screw slenderness ratio 35-40, and screw speed is 200-240r/min, and main feeding rotating speed is 12-15r/min.Each component being uniformly mixed according to a ratio is placed in double screw extruder, through melting mixing extruding pelletization.
In various embodiments of the present invention, the modified short glass fiber of gained/carbon fibre fills PEEK composite, clicks injecting condition and is injection molded into test bars (iso standard).
The performance of embodiment 1-5 is shown in following table
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Hot strength MPa | 320 | 330 | 300 | 255 | 388 |
| Bending strength MPa | 345 | 355 | 300 | 310 | 374 |
| Bending modulus MPa | 14850 | 15579 | 13452 | 12325 | 17430 |
| Impact strength KJ/ m2 | 52 | 56 | 63 | 75 | 45 |
| Heat distortion temperature0C | 335 | 340 | 330 | 320 | 345 |
Claims (6)
1. a high intensity, high-modulus PEEK composite formula composed as follows shown in:
PEEK70%～80%
Glass 10%～15%
Carbon fibre 10%～15%
Auxiliary agent (nanoscale) 1%.
2. a kind of high intensity, high-modulus PEEK composite according to claim 1, it is characterised in that: described PEEK is pure material resin, density 1.32g/cm3。
3. a kind of high intensity, high-modulus PEEK composite according to claim 1, it is characterised in that: described glass is short glass fiber, diameter 10 μm-20 μm.
4. a kind of high intensity, high-modulus PEEK composite according to claim 1, it is characterised in that: described carbon is fine, diameter 10 μm-15 μm.
5. a kind of high intensity, high-modulus PEEK composite according to claim 1, it is characterised in that: described auxiliary agent is inorganic nano class filling additive.
6. a kind of high intensity, high-modulus PEEK composite according to claim 1, production method is:
Step one, carrying out at 120-140 DEG C PEEK 12 hours drying, at nano assistant 100 DEG C dry 5 hours, carbon fibre chemically carries out pretreatment；
Step 2, the PEEK by good for pretreatment, short glass fiber, carbon are fine, nano assistant is put in high-speed mixer, and stirring 5-7 minute at normal temperatures, speed is 500-600 revolutions per second；
Step 3, mixed for step 2 material is joined in the barrel of double screw extruder, through melt blending extrusion, water-cooled, air knife cooling, pelletize, homogenizing, packaging, wherein, the temperature of double screw extruder is set to: back segment temperature is 360-365 DEG C, stage casing and front-end temperature are 365-370 DEG C, screw speed is 200-240r/min, and main feeding rotating speed is 12-15r/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410747376.9A CN105733181A (en) | 2014-12-10 | 2014-12-10 | High-strength and high-modulus polyetheretherketone composite material and preparation method therefor |
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| CN201410747376.9A CN105733181A (en) | 2014-12-10 | 2014-12-10 | High-strength and high-modulus polyetheretherketone composite material and preparation method therefor |
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| CN105733181A true CN105733181A (en) | 2016-07-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057276A (en) * | 2017-05-16 | 2017-08-18 | 广东盟信塑胶实业有限公司 | A kind of glass-fiber reinforced antistatic polyether-ether-ketone composite material and preparation method |
| WO2018233349A1 (en) * | 2017-06-20 | 2018-12-27 | 方达能源集团有限公司 | Yaw brake block and preparation method therefor |
| CN113185801A (en) * | 2021-04-16 | 2021-07-30 | 航天材料及工艺研究所 | Polyether-ether-ketone composite material 3D printing wire material applicable to space environment and preparation method thereof |
| CN113248863A (en) * | 2021-04-02 | 2021-08-13 | 南京聚隆科技股份有限公司 | Laser-weldable carbon fiber modified PEEK material and preparation method thereof |
| WO2022039955A1 (en) * | 2020-08-18 | 2022-02-24 | Illinois Tool Works Inc. | Composite material and fastening nut made of that composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057276A (en) * | 2017-05-16 | 2017-08-18 | 广东盟信塑胶实业有限公司 | A kind of glass-fiber reinforced antistatic polyether-ether-ketone composite material and preparation method |
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| WO2022039955A1 (en) * | 2020-08-18 | 2022-02-24 | Illinois Tool Works Inc. | Composite material and fastening nut made of that composite material |
| CN113248863A (en) * | 2021-04-02 | 2021-08-13 | 南京聚隆科技股份有限公司 | Laser-weldable carbon fiber modified PEEK material and preparation method thereof |
| CN113248863B (en) * | 2021-04-02 | 2024-02-27 | 南京聚隆科技股份有限公司 | Carbon fiber modified PEEK material capable of being welded by laser and preparation method thereof |
| CN113185801A (en) * | 2021-04-16 | 2021-07-30 | 航天材料及工艺研究所 | Polyether-ether-ketone composite material 3D printing wire material applicable to space environment and preparation method thereof |
| CN113185801B (en) * | 2021-04-16 | 2023-02-03 | 航天材料及工艺研究所 | Polyether-ether-ketone composite material 3D printing wire material applicable to space environment and preparation method thereof |
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Application publication date: 20160706 |