CN106554589A - Enhanced polytetrafluoroethylene dispersion resin pipe - Google Patents
Enhanced polytetrafluoroethylene dispersion resin pipe Download PDFInfo
- Publication number
- CN106554589A CN106554589A CN201610898746.8A CN201610898746A CN106554589A CN 106554589 A CN106554589 A CN 106554589A CN 201610898746 A CN201610898746 A CN 201610898746A CN 106554589 A CN106554589 A CN 106554589A
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- China
- Prior art keywords
- dispersion resin
- resin pipe
- powder
- silicon carbide
- pipe
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to tubing technical field, more particularly to a kind of pitch tube.Enhanced polytetrafluoroethylene dispersion resin pipe, including the raw material of following mass percent：Polytetrafluoroethyldispersion dispersion resin 78～97%, silicon carbide micro-powder 3～22%.The present invention is suitably filled with silicon carbide micro-powder in polytetrafluoroethyldispersion dispersion resin, can balance pure polytetrafluoroethyldispersion dispersion resin indices, greatly improve property indices of the pure polytetrafluoroethyldispersion dispersion resin pipe in low pressure heat exchanger, with the obvious advantage.
Description
Technical field
The present invention relates to tubing technical field, more particularly to a kind of pitch tube.
Background technology
The pure polytetrafluoroethyldispersion dispersion resin pipe (being commonly called as PTFE tube) for using at present is made in thermal power generation, waste incineration occasion
Low pressure heat exchanger (being commonly called as economizer, waste-heat recoverer) is substituted in conventional type metal pipe device, has played its polytetrafluoroethyl-ne
The exclusive excellent corrosion resistance of alkene, extremely low coefficient of friction, relative weight be big compared with light, heat transfer area per unit volume, and be difficult
The advantage of dirty.But material intrinsic low thermal conductivity, antiwear property on the weak side excessively have had a strong impact on its all-round popularization again
Use.
The content of the invention
It is an object of the present invention to provide a kind of enhanced polytetrafluoroethylene dispersion resin pipe, is asked with solving above-mentioned technology
Topic.
Technical problem solved by the invention can employ the following technical solutions to realize：
Enhanced polytetrafluoroethylene dispersion resin pipe, including the raw material of following mass percent：Politef dispersion tree
Fat (PTFE) 78～97%, silicon carbide micro-powder (SiC) 3～22%.
The present invention increased SiC material in original PTFE material, SiC material due to its have stable chemical property,
High thermal conductivity coefficient, minimum thermal coefficient of expansion, and the characteristic such as excellent anti-wear performance and shock resistance, are tied with the PTFE of the present invention
Close, supplement and enhance the performance of polytetrafluoroethyldispersion dispersion resin pipe, the elongation percentage, tensile strength and burst pressure in pure PTFE tube
The indices such as power almost do not decline or micro reduction (not affecting original usability) on the premise of, wear resistence, heat conductivity
Significantly rise Deng index parameter.Therefore, silicon carbide micro-powder is suitably filled with polytetrafluoroethyldispersion dispersion resin, can balance pure poly- four
Fluorothene dispersion resin indices, greatly improve pure polytetrafluoroethyldispersion dispersion resin pipe each in low pressure heat exchanger
Item performance indications, it is with the obvious advantage.
The raw material is preferably as follows mass percent：(PTFE) 84～92%, carborundum is micro- for polytetrafluoroethyldispersion dispersion resin
Powder (SiC) 8～16%.
The production process of the enhanced polytetrafluoroethylene dispersion resin pipe is as follows：
1) polytetrafluoroethyldispersion dispersion resin and silicon carbide micro-powder are mixed together, are aged, make mixture；
2) mixture is classified into precompressed base through twice so that institute's base rod inner stuffing is uniformly distributed, it is ensured that made
Base rod consistent in density；
3) in the polytetrafluoroethyldispersion dispersion resin raw material license compression ratio range selected, choose suitable diameter and push cylinder
Cylinder, and cylinder barrel, die holder and die temperature are corrected, adjustment volatilization, presintering and each warm area temperature parameter of sintering stage, sintering are completed
Afterwards, formed pipe (PTFE-s pipes) is obtained.
The present invention adopts enhanced polytetrafluoroethylene dispersion resin pipe made by above-mentioned production technology, with reliable items
Performance indications.
Consistent by temperature for surface when ensureing that formed pipe is sintered, in step 3) sintering when also set draught line auxiliary.
Beneficial effect：The present invention is suitably filled with silicon carbide micro-powder in polytetrafluoroethyldispersion dispersion resin, can balance pure poly- four
Fluorothene dispersion resin indices, greatly improve pure polytetrafluoroethyldispersion dispersion resin pipe each in low pressure heat exchanger
Item performance indications, it is with the obvious advantage.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, enter below
One step illustrates the present invention.
Enhanced polytetrafluoroethylene dispersion resin pipe, including the raw material of following mass percent：Politef dispersion tree
Fat (PTFE) 78～97%, silicon carbide micro-powder (SiC) 3～22%.It is preferably as follows mass percent：Polytetrafluoroethyldispersion dispersion resin
(PTFE) 84～92%, silicon carbide micro-powder (SiC) 8～16%.The enhanced polytetrafluoroethylene dispersion resin pipe of the present invention
(PTFE-s pipes) production process is as follows：
1) polytetrafluoroethyldispersion dispersion resin and silicon carbide micro-powder are mixed together, are aged, make mixture；
2) mixture is classified into precompressed base through twice so that institute's base rod inner stuffing is uniformly distributed, it is ensured that made
Base rod consistent in density；
3) in the polytetrafluoroethyldispersion dispersion resin raw material license compression ratio range selected, choose the pushing cylinder of suitable diameter
Cylinder, and cylinder barrel, die holder and die temperature are corrected, adjustment volatilization, presintering and each warm area temperature parameter of sintering stage, sintering are completed
Afterwards, formed pipe (PTFE-s pipes) is obtained.Consistent by temperature for surface when ensureing that formed pipe is sintered, in step 3) sintering when also set traction
Auxiliary.
The present invention increased SiC material in original politef (PTFE) dispersion resin material, SiC material due to
Which has stable chemical property, high thermal conductivity coefficient, a minimum thermal coefficient of expansion, and the spy such as excellent anti-wear performance and shock resistance
Property, combined with the PTFE dispersion resins of the present invention, supplemented and enhanced the performance of polytetrafluoroethyldispersion dispersion resin pipe, in pure PTFE
The indices such as the elongation percentage of pipe, tensile strength and burst pressure almost do not decline or micro reduction (does not affect original use
Property) on the premise of, the index parameter such as wear resistence, heat conductivity significantly rises.Therefore, it is appropriate in polytetrafluoroethyldispersion dispersion resin
Filling silicon carbide micro-powder, can balance pure polytetrafluoroethyldispersion dispersion resin indices, greatly improve pure politef
Property indices of the dispersion resin pipe in low pressure heat exchanger, it is with the obvious advantage.
Embodiment one：
Polytetrafluoroethyldispersion dispersion resin (PTFE) 92%, silicon carbide micro-powder (SiC) 8% is chosen, using the production of the present invention
Technique is obtained formed pipe 1 (pipe specification ф 6.35* ф 5.08).
Embodiment two：
Polytetrafluoroethyldispersion dispersion resin (PTFE) 80%, silicon carbide micro-powder (SiC) 20% is chosen, using the production of the present invention
Technique is obtained formed pipe 2 (pipe specification ф 6.35* ф 5.08).
Product obtained in embodiment one and two is shown in following form compared with traditional PTFE tube：
Note：Abrasion resistance is determined, under room temperature state, with a 120N constant force at the uniform velocity pulling back in the sample pipe chosen
Dynamic steel cable, pair radius carry out friction for the swan-neck of 150mm until tube wall breakage, examines the resistance to broken of pipe with accumulative number of times
Property.
As seen from the above-described embodiment, using formed pipe 1 made by inventive formulation and production method and formed pipe 2, with biography
The PTFE tube of system is compared, the burst pressure of the present invention, elongation percentage, tensile strength these parameter indexs, with traditional PTEF
Although pipe has been short of, gap is little.And if heat conductivity, abrasion resistance these parameter indexs are substantially than traditional PTEF
Pipe is significantly improved.And as the addition of silicon carbide micro-powder (SiC) is more, the heat conductivity and abrasion resistance of formed pipe are more
By force.It can be seen that the present invention greatly improves the property indices of pure polytetrafluoroethyldispersion dispersion resin pipe, it is with the obvious advantage.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (4)
1. enhanced polytetrafluoroethylene dispersion resin pipe, it is characterised in that including the raw material of following mass percent：Polytetrafluoroethyl-ne
Alkene dispersion resin 78～97%, silicon carbide micro-powder 3～22%.
2. enhanced polytetrafluoroethylene dispersion resin pipe according to claim 1, it is characterised in that the raw material is using such as
Lower mass percent：Polytetrafluoroethyldispersion dispersion resin 84～92%, silicon carbide micro-powder 8～16%.
3. enhanced polytetrafluoroethylene dispersion resin pipe according to claim 1 and 2, it is characterised in that the enhancement mode
The production process of polytetrafluoroethyldispersion dispersion resin pipe is as follows：
1) polytetrafluoroethyldispersion dispersion resin and silicon carbide micro-powder are mixed together according to proportioning, are aged, make mixture；
2) mixture is classified into precompressed base through twice so that institute's base rod inner stuffing is uniformly distributed, it is ensured that institute's base rod
Consistent in density；
3) select polytetrafluoroethyldispersion dispersion resin raw material license compression ratio range in, choose push cylinder barrel, and correct cylinder barrel,
Die holder and die temperature, adjustment volatilization, presintering and sintering stage each warm area temperature parameter, after the completion of sintering, are obtained formed pipe.
4. enhanced polytetrafluoroethylene dispersion resin pipe according to claim 3, it is characterised in that to ensure that formed pipe burns
During knot, surface is consistent by temperature, in step 3) sintering when also set draught line auxiliary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898746.8A CN106554589A (en) | 2016-10-14 | 2016-10-14 | Enhanced polytetrafluoroethylene dispersion resin pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898746.8A CN106554589A (en) | 2016-10-14 | 2016-10-14 | Enhanced polytetrafluoroethylene dispersion resin pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106554589A true CN106554589A (en) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610898746.8A Pending CN106554589A (en) | 2016-10-14 | 2016-10-14 | Enhanced polytetrafluoroethylene dispersion resin pipe |
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| Country | Link |
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| CN (1) | CN106554589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220023829A (en) | 2020-08-20 | 2022-03-03 | 최재훈 | Fluororesin tube with high thermal conductivity and low gas permeability |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585404A (en) * | 2011-12-28 | 2012-07-18 | 无锡市祥健四氟制品有限公司 | Modified polytetrafluoroethylene turning large plate |
| CN102731942A (en) * | 2012-06-13 | 2012-10-17 | 浙江大学 | Preparation method of talc filled PTFE composite material |
| CN103102624A (en) * | 2012-12-27 | 2013-05-15 | 上海长园电子材料有限公司 | Manufacturing method of fluorine plastic sleeve |
| CN104072919A (en) * | 2013-03-29 | 2014-10-01 | 日本华尔卡工业株式会社 | Fluororesin gasket used for sealing tubing |
| CN105522721A (en) * | 2016-02-01 | 2016-04-27 | 天津市天塑科技集团有限公司 | Preparation method of polytetrafluoroethylene heat-exchange tube |
| CN105856583A (en) * | 2016-05-26 | 2016-08-17 | 江苏金由新材料有限公司 | Sintering method of large-caliber thin-wall polytetrafluoroethylene extruding pipe |
| CN105856582A (en) * | 2016-05-26 | 2016-08-17 | 江苏金由新材料有限公司 | Sintering device for large-diameter thin-walled polytetrafluoroethylene extrusion pipe |
-
2016
- 2016-10-14 CN CN201610898746.8A patent/CN106554589A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585404A (en) * | 2011-12-28 | 2012-07-18 | 无锡市祥健四氟制品有限公司 | Modified polytetrafluoroethylene turning large plate |
| CN102731942A (en) * | 2012-06-13 | 2012-10-17 | 浙江大学 | Preparation method of talc filled PTFE composite material |
| CN103102624A (en) * | 2012-12-27 | 2013-05-15 | 上海长园电子材料有限公司 | Manufacturing method of fluorine plastic sleeve |
| CN104072919A (en) * | 2013-03-29 | 2014-10-01 | 日本华尔卡工业株式会社 | Fluororesin gasket used for sealing tubing |
| CN105522721A (en) * | 2016-02-01 | 2016-04-27 | 天津市天塑科技集团有限公司 | Preparation method of polytetrafluoroethylene heat-exchange tube |
| CN105856583A (en) * | 2016-05-26 | 2016-08-17 | 江苏金由新材料有限公司 | Sintering method of large-caliber thin-wall polytetrafluoroethylene extruding pipe |
| CN105856582A (en) * | 2016-05-26 | 2016-08-17 | 江苏金由新材料有限公司 | Sintering device for large-diameter thin-walled polytetrafluoroethylene extrusion pipe |
Non-Patent Citations (2)
| Title |
|---|
| 张云龙 等: "《碳化硅及其复合材料的制造与应用》", 31 July 2015, 国防工业出版社 * |
| 殷成钢: "碳化硅填充聚四氟乙烯基复合材料摩擦磨损性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220023829A (en) | 2020-08-20 | 2022-03-03 | 최재훈 | Fluororesin tube with high thermal conductivity and low gas permeability |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170405 |