CN105524417A - Potassium titanate whisker reinforced PEEK/PTFE resin and preparation method thereof - Google Patents
Potassium titanate whisker reinforced PEEK/PTFE resin and preparation method thereof Download PDFInfo
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- CN105524417A CN105524417A CN201510741775.9A CN201510741775A CN105524417A CN 105524417 A CN105524417 A CN 105524417A CN 201510741775 A CN201510741775 A CN 201510741775A CN 105524417 A CN105524417 A CN 105524417A
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- potassium titanate
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- crystal whisker
- titanate crystal
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Abstract
The invention discloses a potassium titanate whisker reinforced PEEK/PTFE resin. The potassium titanate whisker reinforced PEEK/PTFE resin is characterized by comprising 51 to 66 parts of PEEK, 15 to 25 parts of PTFE, 12 to 15 parts of potassium titanate 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 potassium titanate whisker reinforced PEEK/PTFE resin. According to the invention, the potassium titanate whisker and PTFE are added into PEEK to reduce the surface friction coefficient of the resin and improve wear resistance of the resin; the potassium titanate 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 potassium titanate whisker, PTFE and PEEK, so wear resistance of the resin is further improved; and the nanometer MgO and expanded graphite can further improve flame resistance of the resin. In a preparation method for the potassium titanate whisker reinforced PEEK/PTFE resin, pressurization segmented cooling and insulation are carried out so as to realize more uniform dispersion of the potassium titanate whisker, nanometer MgO and expanded graphite, so the yield of the resin is improved.
Description
Technical field
The present invention relates to potassium titanate 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 potassium titanate 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 potassium titanate crystal whisker strengthens PEEK/PTFE resin, it is characterized in that: by 51-66 part PEEK, 15-25 part PTFE, 12-15 part potassium titanate 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 potassium titanate crystal whisker length is 10-50 μm, and tap density is 0.3g/cm
3; The particle diameter of nano-MgO is less than 100 μm.
Present invention also offers the preparation method that above-mentioned potassium titanate 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, potassium titanate 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, potassium titanate 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 potassium titanate crystal whisker and PTFE in PEEK, reduces the frictional coefficient of resin surface, improves the wear resistance of resin.And potassium titanate 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, potassium titanate crystal whisker, nano-MgO and expanded graphite are disperseed evenly, improve the yield rate of resin.
Embodiment
Embodiment 1
This potassium titanate 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, potassium titanate crystal whisker, nano-MgO powder and expanded graphite powder, wherein PEEK51 part, PTFE25 part, potassium titanate crystal whisker 15 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, potassium titanate 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 potassium titanate crystal whisker and carry out performance test, test result is in table 1.
Embodiment 2
The preparation method that this potassium titanate crystal whisker strengthens PEEK/PTFE resin is consistent with embodiment, and the add-on of each component is: PEEK66 part, PTFE15 part, potassium titanate crystal whisker 12 parts, nano-MgO 4 parts, expanded graphite 3 parts.Strengthen PEEK/PTFE resin to obtained potassium titanate crystal whisker and carry out performance test, test result is in table 1.
Embodiment 3
The preparation method that this potassium titanate crystal whisker strengthens PEEK/PTFE resin is consistent with embodiment, and the add-on of each component is: PEEK60 part, PTFE20 part, potassium titanate crystal whisker 14 parts, nano-MgO 3 parts, expanded graphite 3 parts.Strengthen PEEK/PTFE resin to obtained potassium titanate 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. potassium titanate crystal whisker strengthens a PEEK/PTFE resin, it is characterized in that: by 51-66 part PEEK, 15-25 part PTFE, 12-15 part potassium titanate crystal whisker, 3-5 part nano-MgO, and 3-4 part expanded graphite forms.
2. potassium titanate 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. potassium titanate 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. potassium titanate crystal whisker according to claim 3 strengthens PEEK/PTFE resin, and it is characterized in that: described potassium titanate crystal whisker length is 10-50 μm, tap density is 0.3g/cm
3; The particle diameter of nano-MgO is less than 100 μm.
5. the potassium titanate 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, potassium titanate 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, potassium titanate 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741775.9A CN105524417A (en) | 2015-11-03 | 2015-11-03 | Potassium titanate whisker reinforced PEEK/PTFE resin and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741775.9A CN105524417A (en) | 2015-11-03 | 2015-11-03 | Potassium titanate whisker reinforced PEEK/PTFE resin and preparation method thereof |
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| CN105524417A true CN105524417A (en) | 2016-04-27 |
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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 CN201510741775.9A patent/CN105524417A/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 |
Non-Patent Citations (1)
| Title |
|---|
| 马承银: "晶须材料及其在塑料中的应用", 《现代塑料加工应用》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
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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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |