CN108641245A - A kind of PTFE of heat resistant and wear resistant - Google Patents
A kind of PTFE of heat resistant and wear resistant Download PDFInfo
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- CN108641245A CN108641245A CN201810465079.3A CN201810465079A CN108641245A CN 108641245 A CN108641245 A CN 108641245A CN 201810465079 A CN201810465079 A CN 201810465079A CN 108641245 A CN108641245 A CN 108641245A
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- Prior art keywords
- ptfe
- glass fibre
- polybenzoate
- silicon dioxide
- tungsten carbide
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- 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
- C08K3/08—Metals
- C08K2003/0881—Titanium
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of PTFE of heat resistant and wear resistant, the PTFE of heat resistant and wear resistant is made of PTFE, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate, nano silicon dioxide, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant, and dispensing percentage is：PTFE 60%~80%；Glass fibre 3%~6%；Zirtan 2%~5%；Graphite powder 3%~5%；Tungsten carbide 3%~5%；Polybenzoate 4%~8%；Nano silicon dioxide 2%~5%；Silane couplent 3%~7%；Water-soluble couplant 1%~3%.The present invention adds glass fibre and nano silicon dioxide in the feed, the heat-resisting quantity of PTFE can be effectively improved, zirtan, tungsten carbide and polybenzoate are added in the feed, the wearability of PTFE can be effectively improved, composite halogen-free fire retardant can make PTFE not generate halogens in combustion simultaneously, ensure what property safety of people when fire occurs.
Description
Technical field
The present invention relates to PTFE technical fields, specially a kind of PTFE of heat resistant and wear resistant.
Background technology
PTFE（Polytetrafluoroethylene (PTFE)）Commonly referred to as " non-sticking lining " or " material easy to clean ", this material have antiacid anti-
Alkali, resist various organic solvents the characteristics of, be practically insoluble in all solvents, meanwhile, polytetrafluoroethylene (PTFE) have the characteristics that it is heat safe,
Its friction coefficient is extremely low, so after can making lubricating action, also becomes the ideal coating of water pipe internal layer easy to clean, but existing
Its high temperature resistant of PTFE and wearability it is poor, the growing demand of people is cannot be satisfied, for this purpose, it is proposed that a kind of high temperature resistant
Wear-resisting PTFE.
Invention content
The purpose of the present invention is to provide a kind of PTFE of heat resistant and wear resistant, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of PTFE of heat resistant and wear resistant, heat resistant and wear resistant
PTFE by PTFE, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate, nano silicon dioxide, silane coupling agent,
Water-soluble couplant and composite halogen-free fire retardant composition, dispensing percentage are：PTFE 60%~80%；Glass fibre 3%~
6%；Zirtan 2%~5%；Graphite powder 3%~5%；Tungsten carbide 3%~5%；Polybenzoate 4%~8%；Nanometer titanium dioxide
Silicon 2%~5%；Silane couplent 3%~7%；Water-soluble couplant 1%~3%；Composite halogen-free fire retardant 4%~7%.
Preferably, the glass fibre is made of SiO2, Al2O3, CaO, ZnO, MgO, Fe2O3 and SiC, dispensing percentage
Than for：SiO2 55%~70%；Al2O3 10%~15%；CaO 10%~15%；ZnO 4%~10%；MgO 7%~
12%；Fe2O3 0.1%~0.3%；SiC 0.4%~1%.
Preferably, the water-soluble couplant is by 2,4-DihydroxyBenzophenone, gluconic acid, zinc oxide, nitrilo- three
Ethanol amine, potassium dihydrogen phosphate, three second tallow diamine tetraacethyl calcium, bydroxyethyl starch ether, histidine, lactic acid, glycerine and distilled water
Composition, dispensing percentage are：2,4-DihydroxyBenzophenone 8%~15%；Gluconic acid 3%~7%；Zinc oxide 1%~
3%；Nitrilotriethanol amine 0.5%~1.5%；Potassium dihydrogen phosphate 0.7%~2.5%；Three second tallow diamine tetraacethyl calcium 4%~
6%；Bydroxyethyl starch ether 2%~5%；Histidine 5%~7%；Lactic acid 3.5%~8%；Glycerine 15%~25%；Distillation
Water 40%~55%.
Preferably, the composite halogen-free fire retardant be red phosphorus microcapsule, pentaerythrite diphosphate ester, triphenyl,
Three（Tolyl）Phosphate, resorcinol are double（Diphenyl phosphoester）, bisphenol-A it is double（Diphenyl phosphoester）, ammonium polyphosphate, phosphoric acid
At least two compounding mixture in hydrogen diammonium, Guanidine hydrogen phosphate, melamine cyanurate.
Preferably, preparation method includes the following steps：
A, after glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and nano silicon dioxide being mixed by formula rate
And impurity is removed in trash extraction box；
B, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after removal of impurities are put
Drying and processing is carried out in into drying box, and drying temperature is 60~80 DEG C, drying time is 1.5~2.5h；
C, by glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after drying into
Row pulverization process；
D, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after crushing are fallen
Enter in blender, and PTFE, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant is added by formula rate, continues
0.5~1h is stirred, and whipping temp control is between 50~60 DEG C.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention adds glass fibre and nano silicon dioxide in the feed, the heat-resisting quantity of PTFE can be effectively improved, in original
Zirtan, tungsten carbide and polybenzoate are added in material, can effectively improve the wearability of PTFE, while composite halogen-free fire retardant can
So that PTFE is not generated halogens in combustion, what property safety of people when fire occurs ensured.
Description of the drawings
Fig. 1 is dispensing table schematic diagram of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of PTFE of heat resistant and wear resistant, the PTFE of heat resistant and wear resistant is closed by PTFE, glass fibre, zirconium titanium
Gold, graphite powder, tungsten carbide, polybenzoate, nano silicon dioxide, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant
Composition, dispensing percentage are：PTFE 60%~80%；Glass fibre 3%~6%；Zirtan 2%~5%；Graphite powder
3%~5%；Tungsten carbide 3%~5%；Polybenzoate 4%~8%；Nano silicon dioxide 2%~5%；Silane couplent 3%~
7%；Water-soluble couplant 1%~3%；Composite halogen-free fire retardant 4%~7%.
Glass fibre is made of SiO2, Al2O3, CaO, ZnO, MgO, Fe2O3 and SiC, and dispensing percentage is：SiO2
55%~70%；Al2O3 10%~15%；CaO 10%~15%；ZnO 4%~10%；MgO 7%~12%；Fe2O3
0.1%~0.3%；SiC 0.4%~1%.
Water-soluble couplant is by 2,4-DihydroxyBenzophenone, gluconic acid, zinc oxide, nitrilotriethanol amine, phosphoric acid
Potassium dihydrogen, three second tallow diamine tetraacethyl calcium, bydroxyethyl starch ether, histidine, lactic acid, glycerine and distilled water composition, dispensing
Percentage is：2,4-DihydroxyBenzophenone 8%~15%；Gluconic acid 3%~7%；Zinc oxide 1%~3%；Nitrilo- three
Ethanol amine 0.5%~1.5%；Potassium dihydrogen phosphate 0.7%~2.5%；Three second tallow diamine tetraacethyl calcium 4%~6%；Ethoxy forms sediment
Powder ether 2%~5%；Histidine 5%~7%；Lactic acid 3.5%~8%；Glycerine 15%~25%；Distilled water 40%~55%.
Composite halogen-free fire retardant is red phosphorus microcapsule, pentaerythrite diphosphate ester, triphenyl, three（Tolyl）Phosphorus
Acid esters, resorcinol are double（Diphenyl phosphoester）, bisphenol-A it is double（Diphenyl phosphoester）, ammonium polyphosphate, diammonium hydrogen phosphate, phosphoric acid
At least two compounding mixture in bisguanides, melamine cyanurate.
Preparation method includes the following steps：
A, after glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and nano silicon dioxide being mixed by formula rate
And impurity is removed in trash extraction box；
B, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after removal of impurities are put
Drying and processing is carried out in into drying box, and drying temperature is 60~80 DEG C, drying time is 1.5~2.5h；
C, by glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after drying into
Row pulverization process；
D, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after crushing are fallen
Enter in blender, and PTFE, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant is added by formula rate, continues
0.5~1h is stirred, and whipping temp control is between 50~60 DEG C.
In use, adding glass fibre and nano silicon dioxide in the feed, the heat-resisting quantity of PTFE can be effectively improved,
Zirtan, tungsten carbide and polybenzoate are added in the feed, can effectively improve the wearability of PTFE, while composite halogen-free is fire-retardant
Agent can make PTFE not generate halogens in combustion, ensure what property safety of people when fire occurs.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of PTFE of heat resistant and wear resistant, it is characterised in that：The PTFE of heat resistant and wear resistant is closed by PTFE, glass fibre, zirconium titanium
Gold, graphite powder, tungsten carbide, polybenzoate, nano silicon dioxide, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant
Composition, dispensing percentage are：PTFE 60%~80%；Glass fibre 3%~6%；Zirtan 2%~5%；Graphite powder
3%~5%；Tungsten carbide 3%~5%；Polybenzoate 4%~8%；Nano silicon dioxide 2%~5%；Silane couplent 3%~
7%；Water-soluble couplant 1%~3%；Composite halogen-free fire retardant 4%~7%.
2. a kind of PTFE of heat resistant and wear resistant according to claim 1, it is characterised in that：The glass fibre by SiO2,
Al2O3, CaO, ZnO, MgO, Fe2O3 and SiC are formed, and dispensing percentage is：SiO2 55%~70%；Al2O3 10%~
15%；CaO 10%~15%；ZnO 4%~10%；MgO 7%~12%；Fe2O3 0.1%~0.3%；SiC 0.4%
~1%.
3. a kind of PTFE of heat resistant and wear resistant according to claim 1, it is characterised in that：The water solubility couplant by 2,
4- dihydroxy benaophenonels, gluconic acid, zinc oxide, nitrilotriethanol amine, potassium dihydrogen phosphate, three second tallow diamine tetraacethyls
Calcium, bydroxyethyl starch ether, histidine, lactic acid, glycerine and distilled water composition, dispensing percentage are：2,4- dihydroxy hexichol
Ketone 8%~15%；Gluconic acid 3%~7%；Zinc oxide 1%~3%；Nitrilotriethanol amine 0.5%~1.5%；Phosphoric acid
Potassium dihydrogen 0.7%~2.5%；Three second tallow diamine tetraacethyl calcium 4%~6%；Bydroxyethyl starch ether 2%~5%；Histidine 5%
~7%；Lactic acid 3.5%~8%；Glycerine 15%~25%；Distilled water 40%~55%.
4. a kind of PTFE of heat resistant and wear resistant according to claim 1, it is characterised in that：The composite halogen-free fire retardant is
Red phosphorus microcapsule, pentaerythrite diphosphate ester, triphenyl, three（Tolyl）Phosphate, resorcinol are double（Diphenylphosphine
Acid esters）, bisphenol-A it is double（Diphenyl phosphoester）, ammonium polyphosphate, diammonium hydrogen phosphate, Guanidine hydrogen phosphate, in melamine cyanurate extremely
Few two kinds of compounding mixture.
5. a kind of PTFE of heat resistant and wear resistant according to claim 1, it is characterised in that：Preparation method includes following step
Suddenly：
A, after glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and nano silicon dioxide being mixed by formula rate
And impurity is removed in trash extraction box；
B, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after removal of impurities are put
Drying and processing is carried out in into drying box, and drying temperature is 60~80 DEG C, drying time is 1.5~2.5h；
C, by glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after drying into
Row pulverization process；
D, glass fibre, zirtan, graphite powder, tungsten carbide, polybenzoate and the nano silicon dioxide mixture after crushing are fallen
Enter in blender, and PTFE, silane coupling agent, water-soluble couplant and composite halogen-free fire retardant is added by formula rate, continues
0.5~1h is stirred, and whipping temp control is between 50~60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465079.3A CN108641245A (en) | 2018-05-16 | 2018-05-16 | A kind of PTFE of heat resistant and wear resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465079.3A CN108641245A (en) | 2018-05-16 | 2018-05-16 | A kind of PTFE of heat resistant and wear resistant |
Publications (1)
| Publication Number | Publication Date |
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| CN108641245A true CN108641245A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465079.3A Pending CN108641245A (en) | 2018-05-16 | 2018-05-16 | A kind of PTFE of heat resistant and wear resistant |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346739A (en) * | 2018-12-22 | 2020-06-30 | 平顶山泰克斯特高级润滑油有限公司 | Environment-friendly high-performance mining flotation agent |
| CN113267713A (en) * | 2021-05-28 | 2021-08-17 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN113845743A (en) * | 2021-10-12 | 2021-12-28 | 深圳市晓帆宇科技有限公司 | Preparation method of polyethylene containing nano material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
| CN102911464A (en) * | 2011-08-05 | 2013-02-06 | 薛申生 | Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof |
| CN104893191A (en) * | 2015-03-26 | 2015-09-09 | 苏州市德莱尔建材科技有限公司 | Wear resistant polytetrafluoroethylene material and preparation method thereof |
-
2018
- 2018-05-16 CN CN201810465079.3A patent/CN108641245A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
| CN102911464A (en) * | 2011-08-05 | 2013-02-06 | 薛申生 | Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof |
| CN104893191A (en) * | 2015-03-26 | 2015-09-09 | 苏州市德莱尔建材科技有限公司 | Wear resistant polytetrafluoroethylene material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡隆伟等，: "《紧固件手册》", 31 December 2014, 中国宇航出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346739A (en) * | 2018-12-22 | 2020-06-30 | 平顶山泰克斯特高级润滑油有限公司 | Environment-friendly high-performance mining flotation agent |
| CN113267713A (en) * | 2021-05-28 | 2021-08-17 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN113267713B (en) * | 2021-05-28 | 2023-05-26 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN113845743A (en) * | 2021-10-12 | 2021-12-28 | 深圳市晓帆宇科技有限公司 | Preparation method of polyethylene containing nano material |
| CN113845743B (en) * | 2021-10-12 | 2023-10-31 | 深圳妙将来新科技有限公司 | Preparation method of polyethylene containing nano material |
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