CN105713344A - Nano particle/CF mixed reinforced PEEK composite material and preparation method thereof - Google Patents
Nano particle/CF mixed reinforced PEEK composite material and preparation method thereof Download PDFInfo
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- CN105713344A CN105713344A CN201410729719.9A CN201410729719A CN105713344A CN 105713344 A CN105713344 A CN 105713344A CN 201410729719 A CN201410729719 A CN 201410729719A CN 105713344 A CN105713344 A CN 105713344A
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Abstract
The invention relates to a nano particle/CF mixed reinforced PEEK composite material and a preparation method thereof. The material is a nanoparticle SiO2/CF mixed reinforced PEEK modified material, and the influence of the CF content on friction wear properties and mechanical properties (such as tensile property, bending property and impact property) of the formed PEEK composite material are studied. Results indicate that CF significantly reduces the friction coefficient of the nanoparticle SiO2 modified PEEK composite material and improves the specific wear rate of the nanoparticle SiO2 modified PEEK composite material; along with the increase of the CF content, the specific wear rate of the CF/nanoparticle SiO2/PEEK composite material shows a change trend of firstly decreasing and then increasing; when the content of SiO2 is 5 wt% and the CF content is 15 wt%, the wear rate of the CF/SiO2/PEEK composite material reaches the minimum of 2.49*10<-7> mm<3>/(N*m) and is reduced by 92.80% compared with pure PEEK. The tensile strength and blending strength of the mixed type PEEK composite material show an increasing trend along with the increase of the CF content while the impact strength shows a decreasing trend.
Description
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of nanoparticle/CF hybrid buildup PEEK composite and preparation method thereof, be widely used in the fields such as automobile component, quasiconductor, compressor, medical apparatus and instruments and analytical tool.
Background technology
Valve metal film use in gas compressor valve block has had very long history, and application is good in many aspects, but valve metal film there are disadvantages that, for instance when the medium used is acidity, wet gas, can seriously reduce the performance of valve block；Gently crisp is a significant deficiency of valve metal film, can largely reduce the service life of valve block；And if use valve metal film when compressing inflammable, explosion hazard gases, during compressor operating, air valve easily produces spark, causes accident, it is therefore necessary to take the corresponding precautionary measures.Additionally, valve metal film produces pit because of corrosion, the air-tightness of compressor valve plate work also can be affected.Compared with the valve block that material is metal, material is that the valve block of PEEK has reliability height, energy consumption is low, the compressor volume flow loss that causes is little, valve block low noise advantages.Therefore, PEEK valve block extensively receives publicity and application in many industries in recent years, becomes the focus of research.
Valve block is one of easily worn part of gas compressor most critical.The quality of valve block and serviceability, determine the reliability of whole compressor bank, the compression big performance of effect and maintenance cycle etc. three.Due to valve metal film noise height, poor sealing performance, service life is short, fault rate is high; make shutdown maintenance frequently therefore; develop that Domestic New is wear-resisting, corrosion-resistant, the high performance PE EK valve block of resisting fatigue; improve reliability; increase the service life; improve serviceability and there is sizable using value and economic benefit, there is very major and immediate significance.
Summary of the invention
The present invention is prepared for a kind of gas compressor valve block with material modified, it is therefore an objective to improves the wearability of PEEK composite, improves reliability, increase the service life.The present invention adopts nano silicon (SiO2), CF collaborative as reinforcing material, it is prepared for PEEK composite through hot-forming, investigate through mixing modified polymer anti-wear performance and mechanical property etc., explore the new way improving PEEK composite-material abrasive performance, thus reaching to extend the service life of PEEK composite, in order to realize the high performance of PEEK, so as to can be applicable to the field that wearability is had higher requirements by valve block, sealing ring etc., alternative metals material.
Technical scheme:
Step one: adopt KH550 to process Nano-meter SiO_22, make Nano-meter SiO_22Hydroxyl and the anhydride functional group of silane coupler there occurs esterification, silane coupler can pass through ester bond and Nano-meter SiO_22Link up, thus improve particle and the interface binding power of PEEK matrix.
Step 2: dispensing carries out hot-forming, is cleaned mould before molding processing, then sprays releasing agent at die surface equably.The cylindrical mold of 48 × 22 × 33cm loads the dispensing of 75g, carries out matched moulds, precompressed 4min, pressure 4.9MPa；Afterwards together with mould, dispensing being put into stove and carry out heating up melted, temperature is 390 DEG C, and temperature retention time is 3h；Then mould being reentered into vulcanizing press to emboss, molding pressure is 4.9MPa, and the dwell time is 20min；Carrying out wind cooling temperature lowering therewith, die sinking samples；Finally it is annealed the sample prepared processing, constant temperature 120min at 270 DEG C.The experiment strip needed for the machined one-tenth of sample after tempering.The strip of testing friction polishing machine is to prepare in above-mentioned condition, and mechanical property strip is then the strip mould at 170 × 24 × 6cm, claims the amount of 25g；Preload pressure is 7.5MPa, time 3min；Molding pressure is 7.5MPa, and the dwell time is 10min.
Instantiation:
Below in conjunction with specific embodiment, the present invention is described in more detail, but the invention is not limited in each example of following enforcement:
The formula that each embodiment of table 1 is corresponding
| Component | 1 | 2 | 3 | 4 | 5 |
| Nano-meter SiO_22 | 5 | 5 | 5 | 5 | 5 |
| PEEK | 100 | 95 | 90 | 85 | 80 |
| CF | 0 | 5 | 10 | 15 | 20 |
From experiment the data obtained；
CF significantly reduces nanoparticle SiO2The coefficient of friction of modified PEEK composite, improves nanoparticle SiO2The specific wear rate of particle modified PEEK composite, along with the increase of CF content, CF/ nanoparticle SiO2/ PEEK composite specific wear rate presents and first reduces the variation tendency increased afterwards, works as SiO2Content is 5wt%, CF content when being 15wt%, CF/SiO2The wear rate of/PEEK composite reaches minimum, is 2.49 × 10-7mm3/ (N m), compared with pure PEEK, reduces 92.80%.
The hot strength and the bending strength that mix type PEEK composite are the trend risen along with the enhancing of CF content, and impact strength is downward trend.Work as Nano-meter SiO_22Content is the content of 5wt%, CF when being 15wt%, with SiO2/ PEEK composite is compared, CF/SiO2The hot strength of/PEEK composite and bending strength have been respectively increased 12.90% and 9.65%, and impact strength reduces 4.72%；Compared with pure PEEK, the hot strength of composite improves 1.76%, and bending strength and impact strength reduce 3.48% and 9.22% respectively.
Claims (2)
1. the formula of nanoparticle/CF hybrid buildup PEEK composite composed as follows shown in:
PEEK80～100%
Nano-meter SiO_225%
CF0～20%.
2. a kind of nanoparticle/CF hybrid buildup PEEK composite according to claim 1, it is characterised in that: PEEK(Changchun Jida special plastic engineering Co., Ltd), mean diameter is 7 μm；Nano-meter SiO_22(Nanjing Guan Ye Chemical Co., Ltd.), mean diameter is 20nm；CF(Qingdao Yuan Hui composite company limited), average aspect ratio 5:1～10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729719.9A CN105713344A (en) | 2014-12-05 | 2014-12-05 | Nano particle/CF mixed reinforced PEEK composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729719.9A CN105713344A (en) | 2014-12-05 | 2014-12-05 | Nano particle/CF mixed reinforced PEEK composite material and preparation method thereof |
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| CN105713344A true CN105713344A (en) | 2016-06-29 |
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| CN201410729719.9A Pending CN105713344A (en) | 2014-12-05 | 2014-12-05 | Nano particle/CF mixed reinforced PEEK composite material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751442A (en) * | 2016-11-11 | 2017-05-31 | 中国科学院兰州化学物理研究所 | A kind of multivariant oxide filling polyether-ether-ketone base self-lubricating nano composite material and preparation method thereof |
| CN108192277A (en) * | 2017-12-23 | 2018-06-22 | 湛江正信科技服务有限公司 | A kind of high temperature resistant polyether-ether-ketone composite material and preparation method thereof |
| CN109796725A (en) * | 2018-12-17 | 2019-05-24 | 南京航空航天大学 | A kind of carbon fiber surface chemical graft Nano-meter SiO_22Reinforced polyether ether ketone composite material and preparation method |
| CN112457629A (en) * | 2020-11-30 | 2021-03-09 | 吉林大学 | Carbon fiber surface grafted two-dimensional network structure reinforced polyether-ether-ketone composite material and preparation method thereof |
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| CN1880372A (en) * | 2006-04-30 | 2006-12-20 | 南京肯特复合材料有限公司 | Polyetheretherketone composite material and method of its manufacture |
| CN101220196A (en) * | 2008-01-22 | 2008-07-16 | 南京肯特复合材料有限公司 | Poly(ether-ether-ketone) composite material, production method and application of sealing member |
| CN105419225A (en) * | 2015-11-24 | 2016-03-23 | 南京航空航天大学 | Polyether-ether-ketone composite material for ultrasonic motor and preparing method thereof |
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2014
- 2014-12-05 CN CN201410729719.9A patent/CN105713344A/en active Pending
Patent Citations (3)
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| CN1880372A (en) * | 2006-04-30 | 2006-12-20 | 南京肯特复合材料有限公司 | Polyetheretherketone composite material and method of its manufacture |
| CN101220196A (en) * | 2008-01-22 | 2008-07-16 | 南京肯特复合材料有限公司 | Poly(ether-ether-ketone) composite material, production method and application of sealing member |
| CN105419225A (en) * | 2015-11-24 | 2016-03-23 | 南京航空航天大学 | Polyether-ether-ketone composite material for ultrasonic motor and preparing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈佩民 等: ""纳米SiO2/ CF 混杂增强聚醚醚酮复合材料的耐磨性研究"", 《新技术探讨》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751442A (en) * | 2016-11-11 | 2017-05-31 | 中国科学院兰州化学物理研究所 | A kind of multivariant oxide filling polyether-ether-ketone base self-lubricating nano composite material and preparation method thereof |
| CN106751442B (en) * | 2016-11-11 | 2018-09-25 | 中国科学院兰州化学物理研究所 | A kind of multivariant oxide filling polyether-ether-ketone base self-lubricating nanocomposite and preparation method thereof |
| CN108192277A (en) * | 2017-12-23 | 2018-06-22 | 湛江正信科技服务有限公司 | A kind of high temperature resistant polyether-ether-ketone composite material and preparation method thereof |
| CN109796725A (en) * | 2018-12-17 | 2019-05-24 | 南京航空航天大学 | A kind of carbon fiber surface chemical graft Nano-meter SiO_22Reinforced polyether ether ketone composite material and preparation method |
| CN112457629A (en) * | 2020-11-30 | 2021-03-09 | 吉林大学 | Carbon fiber surface grafted two-dimensional network structure reinforced polyether-ether-ketone composite material and preparation method thereof |
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Application publication date: 20160629 |