CN104650514A - Novel polytetrafluoroethylene gasket material - Google Patents
Novel polytetrafluoroethylene gasket material Download PDFInfo
- Publication number
- CN104650514A CN104650514A CN201510127622.5A CN201510127622A CN104650514A CN 104650514 A CN104650514 A CN 104650514A CN 201510127622 A CN201510127622 A CN 201510127622A CN 104650514 A CN104650514 A CN 104650514A
- Authority
- CN
- China
- Prior art keywords
- gasket material
- teflon
- powder
- coupling agent
- teflon gasket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000463 material Substances 0.000 title claims abstract description 36
- -1 polytetrafluoroethylene Polymers 0.000 title abstract 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 title abstract 6
- 239000004810 polytetrafluoroethylene Substances 0.000 title abstract 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000000049 pigment Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000004809 Teflon Substances 0.000 claims description 46
- 229920006362 Teflon® Polymers 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 3
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
-
- 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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- 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
-
- 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
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
- C08K7/20—Glass
-
- 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
- C08K2003/0806—Silver
-
- 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
- C08K2003/085—Copper
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a novel polytetrafluoroethylene gasket material which comprises the following components in percentage by weight: 90%-95% of polytetrafluoroethylene resin, 20%-30% of barium sulfate, 10%-15% of diatomite, 5%-10% of graphite, 25%-35% of glass microballoons, 10%-15% of metal powder, 2.5%-5% of coupling agents and 2.5%-4.5% of pigments. The invention also discloses a method for preparing the polytetrafluoroethylene gasket material. By adopting the mode, the novel polytetrafluoroethylene gasket material disclosed by the invention has the advantages of good anti-creep property, high resilience, low economic cost and preferable popularization values and market prospects, and can substitute for an imported modified polytetrafluoroethylene material within a certain range.
Description
Technical field
The present invention relates to plastic material, particularly relate to a kind of teflon gasket material.
Background technology
It is a kind of mode of connection commonly used in machinery that bolt flange sheet connects, and must use gasket seal in this connection, and the quality of its performance directly has influence on the sealing property of product.Usually, the Working environment residing for pad is comparatively severe, mainly with very strict to the material requirements of sealing.
High molecule sealing materials a kind ofly applies more sealing material.The advantages such as tetrafluoroethylene has good corrosion resistance, and high and low temperature resistant grades excellent performance, perviousness are low.It is a kind of gasket seal material of excellence.Its purposes, throughout fields such as oil, chemical industry, machinery, food, becomes in modern science and technology the main raw solving many sealing key issues.Although tetrafluoroethylene has many merits, its poor thermal conductivity, creep resistance are poor, poor flexibility etc. limits the Application Areas of tetrafluoroethylene as sealing material.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of teflon gasket material of kind of the present invention, creep-resistant property is good, rebound resilience is high, can substitute the modified teflon material of import within the specific limits, its Financial cost is cheap, has good promotional value and market outlook.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of teflon gasket material, comprise teflon resin, barium sulfate, diatomite, graphite, glass microballon, metal-powder, coupling agent and pigment, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90% ~ 95%, barium sulfate 20% ~ 30%, diatomite 10% ~ 15%, graphite 5% ~ 10%, glass microballon 25% ~ 35%, metal-powder 10% ~ 15%, coupling agent 2.5% ~ 5%, pigment 2.5% ~ 4.5%.
In the present invention's preferred embodiments, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90 ~ 95%, barium sulfate 25% ~ 30%, diatomite 12% ~ 15%, graphite 8% ~ 10%, glass microballon 30% ~ 35%, metal-powder 12% ~ 15%, coupling agent 3.5% ~ 5%, pigment 3.5% ~ 4.5%.
In the present invention's preferred embodiments, described teflon resin particle diameter is 0.15 ~ 0.45um.
In the present invention's preferred embodiments, described metal-powder is one or both in silver, copper, ti powder.
In the present invention's preferred embodiments, described pigment is the public sentiment or chrome yellow.
A preparation method for teflon gasket material, comprises following preparation process:
(1) configuration process liquid, adds in deionized water by the coupling agent of 5%, is prepared into coupling agent treatment liquid;
(2) teflon resin is added in coupling agent treatment liquid according to certain ratio, then carry out high-speed stirring, during stirring, treatment solution is heated, Heating temperature is 85 DEG C ~ 95 DEG C, time 25 ~ 30min, takes out to be placed in stoving oven and carries out drying treatment, take out for subsequent use;
(3) batch mixing, get the teflon resin handled well of 95%, 30% barium sulfate, 14% diatomite, 8% graphite, 30% glass microballon, 12% silver powder pours in high-speed mixer successively mix with copper powder mixture, 3.5% pigment, then place in drying baker and dry, taking-up is sieved, and is prepared into teflon gasket material.
In the present invention's preferred embodiments, sieve in described step (3) and adopt mesh to be 85 ~ 100 object sieves
The invention has the beneficial effects as follows: a kind of teflon gasket material of the present invention, creep-resistant property is good, rebound resilience is high, can substitute the modified teflon material of import within the specific limits, its Financial cost is cheap, has good promotional value and market outlook.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A kind of teflon gasket material, comprise teflon resin, barium sulfate, diatomite, graphite, glass microballon, metal-powder, coupling agent and pigment, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90% ~ 95%, barium sulfate 20% ~ 30%, diatomite 10% ~ 15%, graphite 5% ~ 10%, glass microballon 25% ~ 35%, metal-powder 10% ~ 15%, coupling agent 2.5% ~ 5%, pigment 2.5% ~ 4.5%.
Further, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90 ~ 95%, barium sulfate 25% ~ 30%, diatomite 12% ~ 15%, graphite 8% ~ 10%, glass microballon 30% ~ 35%, metal-powder 12% ~ 15%, coupling agent 3.5% ~ 5%, pigment 3.5% ~ 4.5%.
Further, described teflon resin particle diameter is 0.15 ~ 0.45um.
Further, described metal-powder is one or both in silver, copper, ti powder.
Further, described pigment is the public sentiment or chrome yellow.
A preparation method for teflon gasket material, comprises following preparation process:
(1) configuration process liquid, adds in deionized water by the coupling agent of 5%, is prepared into coupling agent treatment liquid;
(2) teflon resin is added in coupling agent treatment liquid according to certain ratio, then carry out high-speed stirring, during stirring, treatment solution is heated, Heating temperature is 85 DEG C ~ 95 DEG C, time 25 ~ 30min, takes out to be placed in stoving oven and carries out drying treatment, take out for subsequent use;
(3) batch mixing, get the teflon resin handled well of 95%, 30% barium sulfate, 14% diatomite, 8% graphite, 30% glass microballon, 12% silver powder pours in high-speed mixer successively mix with copper powder mixture, 3.5% pigment, then place in drying baker and dry, taking-up is sieved, and is prepared into teflon gasket material.
Further, the employing mesh that sieves in described step (3) is 85 ~ 100 object sieves.
The invention has the beneficial effects as follows: a kind of teflon gasket material of the present invention, creep-resistant property is good, rebound resilience is high, can substitute the modified teflon material of import within the specific limits, its Financial cost is cheap, has good promotional value and market outlook.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a teflon gasket material, it is characterized in that, comprise teflon resin, barium sulfate, diatomite, graphite, glass microballon, metal-powder, coupling agent and pigment, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90% ~ 95%, barium sulfate 20% ~ 30%, diatomite 10% ~ 15%, graphite 5% ~ 10%, glass microballon 25% ~ 35%, metal-powder 10% ~ 15%, coupling agent 2.5% ~ 5%, pigment 2.5% ~ 4.5%.
2. teflon gasket material according to claim 1, it is characterized in that, the weight percent that described each composition accounts at teflon gasket material is: teflon resin 90 ~ 95%, barium sulfate 25% ~ 30%, diatomite 12% ~ 15%, graphite 8% ~ 10%, glass microballon 30% ~ 35%, metal-powder 12% ~ 15%, coupling agent 3.5% ~ 5%, pigment 3.5% ~ 4.5%.
3. teflon gasket material according to claim 1, is characterized in that, described teflon resin particle diameter is 0.15 ~ 0.45um.
4. teflon gasket material according to claim 1, is characterized in that, described metal-powder is one or both in silver, copper, ti powder.
5. teflon gasket material according to claim 1, is characterized in that, described pigment is the public sentiment or chrome yellow.
6. a preparation method for teflon gasket material, is characterized in that, comprises following preparation process:
(1) configuration process liquid, adds in deionized water by the coupling agent of 5%, is prepared into coupling agent treatment liquid;
(2) teflon resin is added in coupling agent treatment liquid according to certain ratio, then carry out high-speed stirring, during stirring, treatment solution is heated, Heating temperature is 85 DEG C ~ 95 DEG C, time 25 ~ 30min, takes out to be placed in stoving oven and carries out drying treatment, take out for subsequent use;
(3) batch mixing, get the teflon resin handled well of 95%, 30% barium sulfate, 14% diatomite, 8% graphite, 30% glass microballon, 12% silver powder pours in high-speed mixer successively mix with copper powder mixture, 3.5% pigment, then place in drying baker and dry, taking-up is sieved, and is prepared into teflon gasket material.
7. the preparation method of teflon gasket material according to claim 6, is characterized in that, sieves and adopt mesh to be 85 ~ 100 object sieves in described step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127622.5A CN104650514A (en) | 2015-03-24 | 2015-03-24 | Novel polytetrafluoroethylene gasket material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127622.5A CN104650514A (en) | 2015-03-24 | 2015-03-24 | Novel polytetrafluoroethylene gasket material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104650514A true CN104650514A (en) | 2015-05-27 |
Family
ID=53242180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510127622.5A Pending CN104650514A (en) | 2015-03-24 | 2015-03-24 | Novel polytetrafluoroethylene gasket material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104650514A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949685A (en) * | 2016-05-24 | 2016-09-21 | 苏州新区特氟龙塑料制品厂 | High-performance durable polytetrafluoroethylene sealing material |
| CN106243585A (en) * | 2016-08-02 | 2016-12-21 | 巨化集团技术中心 | A kind of fluoropolymer seal material |
| CN107652592A (en) * | 2017-09-22 | 2018-02-02 | 南京肯特复合材料股份有限公司 | High temperature resistant low-temperature space sealing strip PTFE resin composite and preparation method thereof |
| CN107918271A (en) * | 2016-10-05 | 2018-04-17 | 斯沃奇集团研究和开发有限公司 | Clock and watch gasket |
| CN116622175A (en) * | 2023-07-25 | 2023-08-22 | 无锡市凯利健密封科技有限公司 | High-durability polytetrafluoroethylene sealing gasket and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839221A (en) * | 1987-01-09 | 1989-06-13 | Nichias Corporation | Gasket containing (I) a sheet composition comprising (A) PTFE (B) inorganic powder (C) clay mineral and (II) a metal support for the sheet |
| CN103146102A (en) * | 2013-04-08 | 2013-06-12 | 上海盈致橡塑制品有限公司 | Wear-resistance Teflon shock absorber gasket |
| 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 |
| CN103627119A (en) * | 2012-08-20 | 2014-03-12 | 上海盈致橡塑制品有限公司 | Polytetrafluoroethylene damper pad |
-
2015
- 2015-03-24 CN CN201510127622.5A patent/CN104650514A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839221A (en) * | 1987-01-09 | 1989-06-13 | Nichias Corporation | Gasket containing (I) a sheet composition comprising (A) PTFE (B) inorganic powder (C) clay mineral and (II) a metal support for the sheet |
| 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 |
| CN103627119A (en) * | 2012-08-20 | 2014-03-12 | 上海盈致橡塑制品有限公司 | Polytetrafluoroethylene damper pad |
| CN103146102A (en) * | 2013-04-08 | 2013-06-12 | 上海盈致橡塑制品有限公司 | Wear-resistance Teflon shock absorber gasket |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949685A (en) * | 2016-05-24 | 2016-09-21 | 苏州新区特氟龙塑料制品厂 | High-performance durable polytetrafluoroethylene sealing material |
| CN106243585A (en) * | 2016-08-02 | 2016-12-21 | 巨化集团技术中心 | A kind of fluoropolymer seal material |
| CN107918271A (en) * | 2016-10-05 | 2018-04-17 | 斯沃奇集团研究和开发有限公司 | Clock and watch gasket |
| CN107918271B (en) * | 2016-10-05 | 2020-11-10 | 斯沃奇集团研究和开发有限公司 | Clock washer |
| CN107652592A (en) * | 2017-09-22 | 2018-02-02 | 南京肯特复合材料股份有限公司 | High temperature resistant low-temperature space sealing strip PTFE resin composite and preparation method thereof |
| CN116622175A (en) * | 2023-07-25 | 2023-08-22 | 无锡市凯利健密封科技有限公司 | High-durability polytetrafluoroethylene sealing gasket and preparation method thereof |
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Application publication date: 20150527 |
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