CN105524410A - Calcium carbonate whisker reinforced PEEK/PTFE resin and preparation method thereof - Google Patents
Calcium carbonate whisker reinforced PEEK/PTFE resin and preparation method thereof Download PDFInfo
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- CN105524410A CN105524410A CN201510738439.9A CN201510738439A CN105524410A CN 105524410 A CN105524410 A CN 105524410A CN 201510738439 A CN201510738439 A CN 201510738439A CN 105524410 A CN105524410 A CN 105524410A
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- calcium carbonate
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- crystal whisker
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Abstract
The invention discloses a calcium carbonate whisker reinforced PEEK/PTFE resin. The calcium carbonate whisker reinforced PEEK/PTFE resin is characterized by comprising 49 to 61 parts of PEEK, 15 to 20 parts of PTFE, 18 to 22 parts of calcium carbonate whisker, 3 to 5 parts of nano-MgO and 3 to 4 parts of expanded graphite. The invention also discloses a preparation method for the calcium carbonate whisker reinforced PEEK/PTFE resin. According to the invention, the calcium carbonate whisker and PTFE are added into PEEK to reduce the surface friction coefficient of the resin and improve the wear resistance of the resin; the calcium carbonate whisker can improve the mechanical strength of PEEK, and PTFE can effectively enhance the toughness of PEEK; the nanometer MgO and expanded graphite are added to facilitate better bonding of the calcium carbonate whisker, PTFE and PEEK, so the wear resistance of the resin is further improved; and the nanometer MgO and expanded graphite can further improve the flame resistance of the resin. In a preparation method for the calcium carbonate whisker reinforced PEEK/PTFE resin, pressurization segmented cooling and insulation are carried out so as to realize more uniform dispersion of the calcium carbonate whisker, nanometer MgO and expanded graphite, so the yield of the resin is improved.
Description
Technical field
The present invention relates to calcium carbonate crystal whisker and strengthen PEEK/PTFE resin and preparation method thereof, belong to field of compound material.
Background technology
Polyether-ether-ketone (PEEK) is the linear aromatic race macromolecular compound containing chain link in molecular backbone chain, is a kind of high temperature resistant, high performance thermoplastic special engineering plastic.PEEK has the performance such as good mechanical property and chemicals-resistant, wear-resistant, hydrolysis; Light specific gravity, self-lubricating property is good, there is extraordinary processing characteristics, the high-tech industrial circles such as aviation, machinery, electronics, chemical industry, automobile can be applied to, the component of machine of high request can be manufactured, as gear, bearing, piston ring, support ring, wear ring (letter), valve block, wear-resisting ring etc., there is the trend replacing traditional metal materials.But due to the problem of surface tissue, the skin friction coefficient of pure PEEK is higher, and sliding is poor, produces a large amount of heat energy cannot spread at high speed, the high situation lower surface carried, affect it and use.Tetrafluoroethylene (PTFE) has good self-lubricating property, is filled in PEEK and can obviously improves its surface friction property, but the mechanical property of PEEK can be caused to decline.
In the use procedure of high ferro, because the speed of EMUs is up to 350KM/h, therefore the orienting lug that high ferro uses is required very high, both required that there is high-intensity high-tenacity, and because orienting lug is long-term and metallic surface friction, also need orienting lug to have good wear resisting property.
Summary of the invention
The object of this invention is to provide a kind of calcium carbonate crystal whisker and strengthen PEEK/PTFE resin, have that skin friction coefficient is low, wear-resisting, the feature of high tenacity, high strength.
For achieving the above object, the technical solution used in the present invention is: a kind of calcium carbonate crystal whisker strengthens PEEK/PTFE resin, it is characterized in that: by 49-61 part PEEK, 15-20 part PTFE, 18-22 part calcium carbonate crystal whisker, 3-5 part nano-MgO, and 3-4 part expanded graphite forms.
Preferably, described PEEK density is 1.35g/cm3, and median size is 120 μm.
Preferably, described PTFE volume density is 400g/L, and median size is 5 μm, specific surface area 10m2/g.
Preferably, described calcium carbonate crystal whisker length is 20-30 μm, and length-to-diameter ratio is 20-30; The particle diameter of nano-MgO is less than 100 μm.
Present invention also offers the preparation method that above-mentioned calcium carbonate crystal whisker strengthens PEEK/PTFE resin, its step comprises:
A, vacuum-drying: adopt vacuum drying oven to carry out vacuum-drying to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder;
B, high-speed mixing: adopt high-speed mixer to carry out batch mixing to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder, to make all material evenly blended;
C, mixed material put into the hot pressing die die cavity of 395-400 DEG C, after melting, at 20Mpa forming under the pressure, cooling and demolding;
Material after D, the demoulding is incubated 30min at 250 DEG C of temperature, is cooled to 200 DEG C of insulation 30min, then is cooled to 150 DEG C of insulation 30min, and whole insulating process pressure is 4Mpa, obtains finished product.
The present invention adds calcium carbonate crystal whisker and PTFE in PEEK, reduces the frictional coefficient of resin surface, improves the wear resistance of resin.And calcium carbonate crystal whisker can strengthen the physical strength of PEEK, PTFE effectively can strengthen the toughness of PEEK.In order to make three better combine, applicant also adds nano-MgO and expanded graphite, improves the wear resistance of resin further.Nano-MgO and expanded graphite can also improve the flame retardant resistance of resin further.In preparation method of the present invention, adopt the insulation of pressurization sub-sectional cooling, calcium carbonate crystal whisker, nano-MgO and expanded graphite are disperseed evenly, improve the yield rate of resin.
Embodiment
Embodiment 1
This calcium carbonate crystal whisker strengthens the preparation method of PEEK/PTFE resin, and its step comprises:
A, vacuum-drying: adopt vacuum drying oven to carry out vacuum-drying to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder, wherein PEEK49 part, PTFE20 part, calcium carbonate crystal whisker 22 parts, nano-MgO 5 parts and expanded graphite 4 parts;
B, high-speed mixing: adopt high-speed mixer to carry out batch mixing to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder, to make all material evenly blended;
C, mixed material put into the hot pressing die die cavity of 395-400 DEG C, after melting, at 20Mpa forming under the pressure, cooling and demolding;
Material after D, the demoulding is incubated 30min at 250 DEG C of temperature, is cooled to 200 DEG C of insulation 30min, then is cooled to 150 DEG C of insulation 30min, and whole insulating process pressure is 4Mpa, obtains finished product.
Strengthen PEEK/PTFE resin to obtained calcium carbonate crystal whisker and carry out performance test, test result is in table 1.
Embodiment 2
The preparation method that this calcium carbonate crystal whisker strengthens PEEK/PTFE resin is consistent with embodiment, and the add-on of each component is: PEEK61 part, PTFE15 part, calcium carbonate crystal whisker 18 parts, nano-MgO 3 parts, expanded graphite 3 parts.Strengthen PEEK/PTFE resin to obtained calcium carbonate crystal whisker and carry out performance test, test result is in table 1.
Embodiment 3
The preparation method that this calcium carbonate crystal whisker strengthens PEEK/PTFE resin is consistent with embodiment, and the add-on of each component is: PEEK55 part, PTFE18 part, calcium carbonate crystal whisker 20 parts, nano-MgO 4 parts, expanded graphite 3 parts.Strengthen PEEK/PTFE resin to obtained calcium carbonate crystal whisker and carry out performance test, test result is in table 1.
Comparative example 1
The preparation method that this calcium carbonate crystal whisker strengthens PEEK/PTFE resin is consistent with embodiment, and the add-on of each component is: PEEK60 part, PTFE20 part, calcium carbonate crystal whisker 20 parts.Strengthen PEEK/PTFE resin to obtained calcium carbonate crystal whisker and carry out performance test, test result is in table 1.
Remarks: friction-wear test condition: initial load 196N, rotating speed 200r/min, metal to-metal contact 2h.To emery wheel: 45 steel, 42-45HRC.
Claims (5)
1. calcium carbonate crystal whisker strengthens a PEEK/PTFE resin, it is characterized in that: by 49-61 part PEEK, 15-20 part PTFE, 18-22 part calcium carbonate crystal whisker, 3-5 part nano-MgO, and 3-4 part expanded graphite forms.
2. calcium carbonate crystal whisker according to claim 1 strengthens PEEK/PTFE resin, it is characterized in that: described PEEK density is 1.35g/cm
3, median size is 120 μm.
3. calcium carbonate crystal whisker according to claim 2 strengthens PEEK/PTFE resin, and it is characterized in that: described PTFE volume density is 400g/L, median size is 5 μm, specific surface area 10m
2/ g.
4. calcium carbonate crystal whisker according to claim 3 strengthens PEEK/PTFE resin, and it is characterized in that: described calcium carbonate crystal whisker length is 20-30 μm, length-to-diameter ratio is 20-30; The particle diameter of nano-MgO is less than 100 μm.
5. the calcium carbonate crystal whisker according to any one of a claim 1-4 strengthens the preparation method of PEEK/PTFE resin, and its step comprises:
A, vacuum-drying: adopt vacuum drying oven to carry out vacuum-drying to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder;
B, high-speed mixing: adopt high-speed mixer to carry out batch mixing to PEEK powder, PTFE powder, calcium carbonate crystal whisker, nano-MgO powder and expanded graphite powder, to make all material evenly blended;
C, mixed material put into the hot pressing die die cavity of 395-400 DEG C, after melting, at 20Mpa forming under the pressure, cooling and demolding;
Material after D, the demoulding is incubated 30min at 300 DEG C of temperature, is cooled to 250 DEG C of insulation 30min, then is cooled to 200 DEG C of insulation 30min, and whole insulating process pressure is 4Mpa, obtains finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510738439.9A CN105524410A (en) | 2015-11-03 | 2015-11-03 | Calcium carbonate whisker reinforced PEEK/PTFE resin and preparation method thereof |
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| CN201510738439.9A CN105524410A (en) | 2015-11-03 | 2015-11-03 | Calcium carbonate whisker reinforced PEEK/PTFE resin and preparation method thereof |
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| CN105524410A true CN105524410A (en) | 2016-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698792A (en) * | 2017-09-13 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Fluorine richness polyether-ether-ketone/graphite nanometer composite material, its preparation method and artificial joint prosthesis |
| CN109054287A (en) * | 2018-07-30 | 2018-12-21 | 界首市鑫龙机械设备购销有限公司 | A kind of preparation method of the wear-resisting polyether-ether-ketone composite material of calcium carbonate crystal whisker-vermiculite filling enhancing |
| CN109135174A (en) * | 2017-06-16 | 2019-01-04 | 合肥杰事杰新材料股份有限公司 | A kind of rigidity-toughness balanced polyether-ether-ketone composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847310A (en) * | 2006-04-12 | 2006-10-18 | 福州大学 | Novel self-lubricating polymer composite material and its prepn process |
| CN103242651A (en) * | 2013-05-21 | 2013-08-14 | 苏州旭光聚合物有限公司 | Reinforced and modified PA (Polyamide)6 composite material |
| CN104844775A (en) * | 2015-05-30 | 2015-08-19 | 吉林大学 | Expanded graphite flake/polyether-ether-ketone wear-resistant composite material and preparation method thereof |
-
2015
- 2015-11-03 CN CN201510738439.9A patent/CN105524410A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847310A (en) * | 2006-04-12 | 2006-10-18 | 福州大学 | Novel self-lubricating polymer composite material and its prepn process |
| CN103242651A (en) * | 2013-05-21 | 2013-08-14 | 苏州旭光聚合物有限公司 | Reinforced and modified PA (Polyamide)6 composite material |
| CN104844775A (en) * | 2015-05-30 | 2015-08-19 | 吉林大学 | Expanded graphite flake/polyether-ether-ketone wear-resistant composite material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135174A (en) * | 2017-06-16 | 2019-01-04 | 合肥杰事杰新材料股份有限公司 | A kind of rigidity-toughness balanced polyether-ether-ketone composite material and preparation method thereof |
| CN107698792A (en) * | 2017-09-13 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Fluorine richness polyether-ether-ketone/graphite nanometer composite material, its preparation method and artificial joint prosthesis |
| CN107698792B (en) * | 2017-09-13 | 2020-10-20 | 北京爱康宜诚医疗器材有限公司 | Fluorine modified polyether-ether-ketone/graphite nano composite material, preparation method thereof and artificial joint prosthesis |
| CN109054287A (en) * | 2018-07-30 | 2018-12-21 | 界首市鑫龙机械设备购销有限公司 | A kind of preparation method of the wear-resisting polyether-ether-ketone composite material of calcium carbonate crystal whisker-vermiculite filling enhancing |
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Address after: 211162 Jiangsu, Jiangning District, Binjiang Development Zone, No., Copper Road, No. 18 Applicant after: Nanjing Kent composites Limited by Share Ltd Applicant after: Nanjing CompTECH New Material Co., Ltd. Address before: 211162 Nanjing City, Jiangning Province town, the town of copper, Copper Road, No. 18 Applicant before: Nanjing Kente Composite Material Co., Ltd. Applicant before: Nanjing CompTECH New Material Co., Ltd. |
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Application publication date: 20160427 |
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