CN106380762A - Graphene and polytetrafluoroethylene composite material conductive belt and production method thereof - Google Patents
Graphene and polytetrafluoroethylene composite material conductive belt and production method thereof Download PDFInfo
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- CN106380762A CN106380762A CN201610795314.4A CN201610795314A CN106380762A CN 106380762 A CN106380762 A CN 106380762A CN 201610795314 A CN201610795314 A CN 201610795314A CN 106380762 A CN106380762 A CN 106380762A
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- graphene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to the technical field of composite materials, and especially relates to a graphene and polytetrafluoroethylene composite material conductive belt and a production method thereof. The conductive belt comprises, by weight, 10-14 parts of graphene, 100-130 parts of polytetrafluoroethylene, 0.3-1 part of a silane coupling agent kh560 and 2-3 parts of short carbon fibers. The conductive belt is produced through powder mixing and stirring, disc raw material compaction molding, disc clinker high-temperature sintering and lathe turning. Graphene is modified, so the dispersibility of graphene in polytetrafluoroethylene is effectively improved, aggregation is effectively reduced, and the stability of the composite material is improved. The composite material has the excellent performances of polytetrafluoroethylene, and has greatly improved heat resistance, hardness, dimension stability, wear resistance and conductivity; and the production method of the composite material is simple.
Description
Technical field
The present invention relates to technical field of composite materials, more particularly, to a kind of Graphene ptfe composite conductive strips
And preparation method thereof.
Background technology
Politef has outstanding excellent comprehensive performance, high temperature resistant, corrosion-resistant, glue, self-lubricating, excellent dielectric
Performance, very low coefficient of friction.As engineering plastics, can be made into polyfluortetraethylene pipe, rod, band, plate, thin film etc., be normally applied
In the higher corrosion resistant pipeline of performance requirement, container, pump, valve and radar processed, high frequency communications equipment, radio component parts etc..
Add any filler that can bear PTFE sintering temperature in PTFE, mechanical performance can obtain greatly to be improved, and protects simultaneously
Hold PTFE other premium properties.The kind of filling has glass fibre, metal, metallization oxide, graphite, molybdenum bisuphide, carbon fine
Dimension, polyimides etc., 200～260 degree of its life-time service temperature, still soft when -100 spend；It is resistant to chloroazotic acid and all are organic molten
Agent；Optimal aging life-span in the plastic；There is minimum coefficient of friction (0.04) in plastics；There is minimum in solid material
Surface tension and do not adhere to any material；Nonhazardouss have physiological inertia；Excellent electric property, is preferable C class B insulation
Material, one layer of newspaper thickness just can stop the high pressure of 1500V；Also more smooth than ice.Therefore polytetrafluoroethylmaterial material, extensively applies
In important departments such as defence and military, atomic energy, oil, radio, electric machinery, chemical industry；
But its own there is also certain defect, as poor in anti-wear performance, it is easily deformed during high temperature, and under continuous load
The features such as be susceptible to deformation, would generally add some auxiliary agents to improve its combination property in industrial application；Especially poly- four
Fluorothene is high insulant, and when high insulant makes pipeline and equipment, the medium of the inside has dust or carries electrostatic, work
As when be easy for occur explosion accident.
Graphene is the thinnest, the hardest nano material in known world, and it is almost fully transparent, only absorbs
2.3% light；Heat conductivity is up to 5300W/m K, and higher than CNT and diamond, under room temperature, its electron mobility exceedes
15000cm2/V s, but higher than CNT or silicon crystal, and resistivity only about 10-6 Ω cm, lower than copper or silver, it is generation
The minimum material of upper resistivity.Because its resistivity is extremely low, the speed of electron transfer is exceedingly fast, and is therefore expected to can be used to develop more
Thin, conductive speed electronic component of new generation or transistor faster.Because Graphene is substantially a kind of transparent, good leading
Body, also is adapted for for manufacturing transparent touch screen, tabula rasa, even solaode；
Therefore, Graphene is added in politef the present invention, can effectively improve leading of finished composite material
The performance such as electric, wear-resisting, especially electric conductivity, expand the range of composite.
Content of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of Graphene ptfe composite
Conductive strips and preparation method thereof.
The present invention is achieved by the following technical solutions：
A kind of Graphene ptfe composite conductive strips are it is characterised in that it is by the raw material of following weight parts
Composition：
Graphene 1%～3%, politef 95%～98%, silane coupler 0.25%～1%, the carbon that is chopped are tieed up
0.25%～1%.
A kind of preparation method of Graphene ptfe composite conductive strips, comprises the following steps：
(1) configure mixed powder according to aforementioned proportion, mixed powder is rendered in blender and stirs；
(2) mixed powder that step (1) stirs is added to the pressure using 100kg/cm2 the mould on film laminator Nei
It is pressed into collar plate shape raw material block, and pressurize 10 minutes, compressing collar plate shape raw material block diameter 500mm, thickness 100mm.
(3) compressing raw material block in step (2) is sent in sintering furnace and uses high temperature sintering 2 hours, sintering process
Middle using be progressively warming up to 380 sintering DEG C be progressively cooled to again room temperature cooling method be obtained grog block.
(4) the collar plate shape grog block making step (3) high temperature sintering is put on lathe and is lathed width is 100mm,
Thickness is the thin film band of 0.5mm, described Graphene ptfe composite conductive strips that is,.
Further, the length of described Graphene crystal is 10 μm, and thickness is 100nm.
It is an advantage of the invention that：
Graphene is passed through modification by the present invention, effectively improves its dispersibility in politef, effectively
The stability reducing reunion, improve finished composite material, the composite of the present invention not only have politef this
The premium properties of body, the index such as its thermostability, hardness, dimensional stability, mar proof, electric conductivity is obtained for very big proposing
Height, the composite material and preparation method thereof of the present invention is simple.
Specific embodiment
Specific embodiment one；
A kind of Graphene ptfe composite conductive strips are it is characterised in that it is by the raw material of following weight parts
Composition：
Graphene 1%, politef 97%, silane coupler 1%, the carbon that is chopped tie up 1%.
A kind of preparation method of Graphene ptfe composite conductive strips, comprises the following steps：
(1) configure mixed powder according to aforementioned proportion, mixed powder is rendered in blender and stirs；
(2) mixed powder that step (1) stirs is added to the pressure using 100kg/cm2 the mould on film laminator Nei
It is pressed into collar plate shape raw material block, and pressurize 10 minutes, compressing collar plate shape raw material block diameter 500mm, thickness 100mm.
(3) compressing raw material block in step (2) is sent in sintering furnace and uses high temperature sintering 2 hours, sintering process
Middle using be progressively warming up to 380 sintering DEG C be progressively cooled to again room temperature cooling method be obtained grog block.
(4) the collar plate shape grog block making step (3) high temperature sintering is put on lathe and is lathed width is 100mm,
Thickness is the thin film band of 0.5mm, described Graphene ptfe composite conductive strips that is,.
Further, the length of described Graphene crystal is 10 μm, and thickness is 100nm.
Performance test：
Surface resistivity：＜ 1 × 106；
Tensile strength：16.7MPa；
Elongation at break：95%.
Specific embodiment two；
A kind of Graphene ptfe composite conductive strips are it is characterised in that it is by the raw material of following weight parts
Composition：
Graphene 1.5%, politef 98%, silane coupler 0.25%, the carbon that is chopped tie up 0.25%.
A kind of preparation method of Graphene ptfe composite conductive strips, comprises the following steps：
(1) configure mixed powder according to aforementioned proportion, mixed powder is rendered in blender and stirs；
(2) mixed powder that step (1) stirs is added to the pressure using 100kg/cm2 the mould on film laminator Nei
It is pressed into collar plate shape raw material block, and pressurize 10 minutes, compressing collar plate shape raw material block diameter 500mm, thickness 100mm.
(3) compressing raw material block in step (2) is sent in sintering furnace and uses high temperature sintering 2 hours, sintering process
Middle using be progressively warming up to 380 sintering DEG C be progressively cooled to again room temperature cooling method be obtained grog block.
(4) the collar plate shape grog block making step (3) high temperature sintering is put on lathe and is lathed width is 100mm,
Thickness is the thin film band of 0.5mm, described Graphene ptfe composite conductive strips that is,.
Further, the length of described Graphene crystal is 10 μm, and thickness is 100nm.
Performance test：
Surface resistivity：＜ 1 × 106；
Tensile strength：25.7MPa；
Elongation at break：98%.
Claims (3)
1. a kind of Graphene ptfe composite conductive strips are it is characterised in that it is by the raw material group of following weight parts
Become：
Graphene 1%～3%, politef 95%～98%, silane coupler 0.25%～1%, the carbon that is chopped tie up 0.25%
～1%.
2. a kind of preparation method of Graphene ptfe composite conductive strips as claimed in claim 1, its feature exists
In comprising the following steps：
(1) configure mixed powder according to aforementioned proportion, mixed powder is rendered in blender and stirs；
(2) mixed powder that step (1) stirs is added to the pressure compacting using 100kg/cm2 the mould on film laminator Nei
Become collar plate shape raw material block, and pressurize 10 minutes, compressing collar plate shape raw material block diameter 500mm, thickness 100mm.
(3) compressing raw material block in step (2) is sent in sintering furnace and uses high temperature sintering 2 hours, adopt in sintering process
The method being progressively cooled to room temperature cooling with being progressively warming up to 380 sintering DEG C again is obtained grog block.
(4) the collar plate shape grog block making step (3) high temperature sintering is put on lathe and is lathed width is 100mm, thickness
Thin film band for 0.5mm, described Graphene ptfe composite conductive strips that is,.
(5) above-mentioned conductive modified Graphene is mixed with remaining each raw material, stir, send into extruder, melt extrude, then
By cooling and shaping, machine cuts, polishing, obtain final product described composite.
3. a kind of Graphene ptfe composite conductive strips according to claim 1 are it is characterised in that described
The length of Graphene crystal is 10 μm, and thickness is 100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610795314.4A CN106380762A (en) | 2016-08-31 | 2016-08-31 | Graphene and polytetrafluoroethylene composite material conductive belt and production method thereof |
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| CN201610795314.4A CN106380762A (en) | 2016-08-31 | 2016-08-31 | Graphene and polytetrafluoroethylene composite material conductive belt and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164893A (en) * | 2018-01-15 | 2018-06-15 | 太原理工大学 | The preparation method of wear-resistant conductive PTFE/Cu composite materials |
| CN109021491A (en) * | 2018-06-04 | 2018-12-18 | 深圳市华普新材料有限公司 | A kind of high temperature resistant superconducts high performance plastics alloy material |
| CN111253699A (en) * | 2019-12-26 | 2020-06-09 | 江苏亿豪塑业股份有限公司 | Preparation process of polytetrafluoroethylene composite filler |
| CN111548588A (en) * | 2020-06-11 | 2020-08-18 | 北京新世翼节能环保科技股份有限公司 | Composite material |
| CN112300521A (en) * | 2020-11-09 | 2021-02-02 | 河北中科同创科技发展有限公司 | High-thermal-conductivity polytetrafluoroethylene composite material and preparation method and application thereof |
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| CN101481483A (en) * | 2009-02-12 | 2009-07-15 | 广州市东泓橡塑制品有限公司 | Antistatic teflon film and preparation thereof |
| CN104877283A (en) * | 2015-06-25 | 2015-09-02 | 河南泛锐复合材料研究院有限公司 | Method for preparing anti-static carbon nanomaterial-polytetrafluoroethylene composite material |
| CN105199278A (en) * | 2015-10-27 | 2015-12-30 | 巨轮智能装备股份有限公司 | Graphene/ polytetrafluoroethylene composite material and method for preparing vulcanizer friction ring from same |
-
2016
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164893A (en) * | 2018-01-15 | 2018-06-15 | 太原理工大学 | The preparation method of wear-resistant conductive PTFE/Cu composite materials |
| CN108164893B (en) * | 2018-01-15 | 2020-10-13 | 太原理工大学 | Preparation method of wear-resistant conductive PTFE/Cu composite material |
| CN109021491A (en) * | 2018-06-04 | 2018-12-18 | 深圳市华普新材料有限公司 | A kind of high temperature resistant superconducts high performance plastics alloy material |
| CN111253699A (en) * | 2019-12-26 | 2020-06-09 | 江苏亿豪塑业股份有限公司 | Preparation process of polytetrafluoroethylene composite filler |
| CN111548588A (en) * | 2020-06-11 | 2020-08-18 | 北京新世翼节能环保科技股份有限公司 | Composite material |
| CN112300521A (en) * | 2020-11-09 | 2021-02-02 | 河北中科同创科技发展有限公司 | High-thermal-conductivity polytetrafluoroethylene composite material and preparation method and application thereof |
| CN112300521B (en) * | 2020-11-09 | 2022-03-11 | 河北中科同创科技发展有限公司 | High-thermal-conductivity polytetrafluoroethylene composite material and preparation method and application thereof |
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Application publication date: 20170208 |