CN107474452A - High heat conduction rotating shaft sealing ring PTFE resin composite and preparation method thereof - Google Patents
High heat conduction rotating shaft sealing ring PTFE resin composite and preparation method thereof Download PDFInfo
- Publication number
- CN107474452A CN107474452A CN201710869059.8A CN201710869059A CN107474452A CN 107474452 A CN107474452 A CN 107474452A CN 201710869059 A CN201710869059 A CN 201710869059A CN 107474452 A CN107474452 A CN 107474452A
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- rotating shaft
- sealing ring
- heat conduction
- high heat
- conduction rotating
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K3/28—Nitrogen-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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Rotary Pumps (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of high heat conduction rotating shaft sealing ring PTFE resin composite, it is made up of by mass percentage following components：Carbon fiber：5 15%, nanometer silicon carbide：5 8%, indium nitride：3 10%, aluminum oxide：2 4%, coupling agent：1 2%, surplus PTFE.Its preparation method is also disclosed.In the present invention, carbon fiber is added in PTFE can increase the stretching, compression and bending modulus of material, reduction thermal coefficient of expansion, reduce and leak hidden danger caused by being expanded after temperature raises；Creep can also be reduced simultaneously, increase hardness, while thermal conductivity increase so that frictional heat quickly exports.Carbon fiber is modified processing and preferably can be distributed in PTFE.Nanometer silicon carbide, aluminum oxide and indium nitride coordinate the heat conductivility that can be effectively increased material, and high heat conduction rotating shaft sealing ring has high-termal conductivity made from material of the present invention, can export the frictional heat in rotating shaft in time.
Description
Technical field
The present invention relates to the air-conditioning screw compressor on new-energy automobile to be answered with high heat conduction rotating shaft with sealing ring PTFE resin
Condensation material and preparation method thereof, belong to field of compound material.
Background technology
Polytetrafluoroethylene (PTFE)（ PTFE）A kind of outstanding polymeric material of combination property, have fabulous resistant of high or low temperature and
Chemical resistance, and dielectric properties are excellent, the minimum heat endurance of coefficient of friction is good, can in -260 DEG C ~ 260 DEG C long-term uses,
But pure PTFE has cold flow properties, poor dimensional stability, dielectric strength is low, wears the shortcomings of big.
It is general on using motor as the new-energy automobile of major impetus to use air-conditioning screw compressor as refrigeration power.
Air-conditioning screw compressor is the compressor that refrigeration is played with compression refrigerant, by a fixed involute scroll plate and one
The individual involute motion scroll plate composition in eccentric convolution translation.Rotating shaft sealing ring is in the air-conditioning screw compressor course of work
In, it is necessary to which fast quick-release export frictional heat, prevents sealing ring deformation from causing poorly sealed, causes compressor fault, it is therefore desirable to make
It is made of highly heat-conductive material.And sealing ring is permanently connected to refrigerant and lubrication refrigeration oil in use, and refrigeration oil has
Corrosivity, therefore seal ring material also needs to stronger corrosion resistance.
The content of the invention
It is an object of the invention to provide a kind of high heat conduction rotating shaft sealing ring PTFE resin composite, there is high heat conduction
Property.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of high heat conduction rotating shaft sealing ring PTFE resin
Composite, it is characterised in that：It is made up of by mass percentage following components：
Carbon fiber：5-15%
Nanometer silicon carbide：5-8%
Indium nitride：3-10%
Aluminum oxide：2-4%
Coupling agent：1-2%
Surplus is PTFE.
Preferably, the acidified processing of the carbon fiber.
Preferably, the coupling agent is silane coupler.
Preferably, the indium nitride, alumina particle are 2000-3000 mesh, and nanometer silicon carbide particle diameter is 20-200nm.
The invention also discloses the preparation method of above-mentioned high heat conduction rotating shaft sealing ring, its step includes：
（1）, carbon fiber after acetone soak, wash, drying, add acid solution in heating stirring after filter, wash to neutrality, obtain
The carbon fiber of acidifying；
（2）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（3）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（4）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 400 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains air eddy compressor with wear-resisting dust-free area sealing strip.
Preferably, the acid solution is the concentrated sulfuric acid or concentrated nitric acid.
In the present invention, carbon fiber is added in PTFE can increase the stretching, compression and bending modulus of material, reduction heat
The coefficient of expansion, expand caused leakage hidden danger after reducing temperature rise；Creep can also be reduced simultaneously, increase hardness, lead simultaneously
Heating rate increase so that frictional heat quickly exports.Carbon fiber is modified processing and preferably can be distributed in PTFE.Nano silicon carbide
Silicon, aluminum oxide and indium nitride coordinate the heat conductivility that can be effectively increased material, made from material of the present invention on new-energy automobile
Air-conditioning screw compressor high heat conduction rotating shaft sealing ring there is high-termal conductivity, the frictional heat in rotating shaft can be exported in time.
Embodiment
Embodiment 1-4
The preparation method of this air-conditioning screw compressor high heat conduction rotating shaft sealing ring, its step include：
（1）, carbon fiber after acetone soak, wash, drying, add acid solution in 60-70 DEG C of stirring reaction 0.5-2h, filter, wash
Wash to neutrality, the carbon fiber being acidified；
（2）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（3）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（4）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 400 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains air eddy compressor with wear-resisting dust-free area sealing strip.
Performance test is carried out with high heat conduction rotating shaft with sealing ring to obtained air-conditioning screw compressor, test result is shown in Table 2.
The embodiment 1-4 of table 1 component table
The embodiment 1-4 sealing ring performance tests of table 2
Claims (6)
1. high heat conduction rotating shaft sealing ring PTFE resin composite, it is characterised in that：By mass percentage by following components structure
Into：
Carbon fiber：5-15%
Nanometer silicon carbide：5-8%
Indium nitride：3-10%
Aluminum oxide：2-4%
Coupling agent：1-2%
Surplus is PTFE.
2. high heat conduction rotating shaft according to claim 1 sealing ring PTFE resin composite, it is characterised in that：The carbon
The acidified processing of fiber.
3. high heat conduction rotating shaft according to claim 2 sealing ring PTFE resin composite, it is characterised in that：The idol
Connection agent is silane coupler.
4. high heat conduction rotating shaft according to claim 3 sealing ring PTFE resin composite, it is characterised in that：The nitrogen
Change indium, alumina particle are 2000-3000 mesh, and nanometer silicon carbide particle diameter is 20-200nm.
5. the preparation method of the high heat conduction rotating shaft sealing ring any one of claim 1-4, its step include：
（1）, carbon fiber after acetone soak, wash, drying, add acid solution in heating stirring after filter, wash to neutrality, obtain
The carbon fiber of acidifying；
（2）, weigh raw material according to quantity, add in high speed mixer, taken out after 2 ~ 3min of high-speed stirred, place 2 ~ 6h；
（3）, using press carry out cold moudling, 10 ~ 30MPa of pressure, dwell time 1min, the demoulding obtain preforming sample；
（4）, preforming sample is put into sintering furnace, be sintered 3 ~ 6h at 400 ± 5 DEG C, room temperature naturally cooled to stove,
Machining obtains high heat conduction rotating shaft sealing ring.
6. the preparation method of high heat conduction rotating shaft sealing ring according to claim 5, it is characterised in that：The acid solution is dense
Sulfuric acid or concentrated nitric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869059.8A CN107474452A (en) | 2017-09-22 | 2017-09-22 | High heat conduction rotating shaft sealing ring PTFE resin composite and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869059.8A CN107474452A (en) | 2017-09-22 | 2017-09-22 | High heat conduction rotating shaft sealing ring PTFE resin composite and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107474452A true CN107474452A (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710869059.8A Pending CN107474452A (en) | 2017-09-22 | 2017-09-22 | High heat conduction rotating shaft sealing ring PTFE resin composite and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591268A (en) * | 2018-04-28 | 2018-09-28 | 天津大学 | A kind of lightweight low-friction coefficient high abrasion sliding bearing and preparation method thereof |
| CN108610583A (en) * | 2018-04-28 | 2018-10-02 | 天津大学 | A kind of full working scope high abrasion composite, scraper plate body and preparation method thereof |
| CN108644233A (en) * | 2018-04-28 | 2018-10-12 | 天津大学 | A kind of full working scope high abrasion sliding bearing and preparation method thereof |
| CN109181178A (en) * | 2018-08-27 | 2019-01-11 | 四川大学 | A kind of preparation method of high thermal conductivity PTFE composite membrane material |
| CN111038050A (en) * | 2019-12-03 | 2020-04-21 | 合肥一密科技有限公司 | Self-lubricating and high-wear-resistance non-metal sealing sliding block and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571111A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Polytetrafluoroethylene sealing gasket and preparation method thereof |
| CN104151707A (en) * | 2014-08-13 | 2014-11-19 | 上海交通大学 | Carbon fiber reinforced resin composite material with superior heat-conducting property and preparation method thereof |
-
2017
- 2017-09-22 CN CN201710869059.8A patent/CN107474452A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571111A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Polytetrafluoroethylene sealing gasket and preparation method thereof |
| CN104151707A (en) * | 2014-08-13 | 2014-11-19 | 上海交通大学 | Carbon fiber reinforced resin composite material with superior heat-conducting property and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591268A (en) * | 2018-04-28 | 2018-09-28 | 天津大学 | A kind of lightweight low-friction coefficient high abrasion sliding bearing and preparation method thereof |
| CN108610583A (en) * | 2018-04-28 | 2018-10-02 | 天津大学 | A kind of full working scope high abrasion composite, scraper plate body and preparation method thereof |
| CN108644233A (en) * | 2018-04-28 | 2018-10-12 | 天津大学 | A kind of full working scope high abrasion sliding bearing and preparation method thereof |
| CN109181178A (en) * | 2018-08-27 | 2019-01-11 | 四川大学 | A kind of preparation method of high thermal conductivity PTFE composite membrane material |
| CN109181178B (en) * | 2018-08-27 | 2021-05-07 | 四川大学 | Preparation method of high-thermal-conductivity polytetrafluoroethylene composite film material |
| CN111038050A (en) * | 2019-12-03 | 2020-04-21 | 合肥一密科技有限公司 | Self-lubricating and high-wear-resistance non-metal sealing sliding block and manufacturing method thereof |
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Application publication date: 20171215 |