CN102127293A - Formula and production process of thermoplastic polyurethane hydraulic sealing ring material - Google Patents
Formula and production process of thermoplastic polyurethane hydraulic sealing ring material Download PDFInfo
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- CN102127293A CN102127293A CN2010100427225A CN201010042722A CN102127293A CN 102127293 A CN102127293 A CN 102127293A CN 2010100427225 A CN2010100427225 A CN 2010100427225A CN 201010042722 A CN201010042722 A CN 201010042722A CN 102127293 A CN102127293 A CN 102127293A
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- thermoplastic polyurethane
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- hydraulic seal
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- sealing ring
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Abstract
The invention relates to the manufacturing industry of hydraulic sealing rings, in particular to a formula and production process of a thermoplastic polyurethane hydraulic sealing ring material. In the formula of the thermoplastic polyurethane hydraulic sealing ring material, high-temperature-resistant thermoplastic polyurethane is taken as a major raw material, and the thermoplastic polyurethane hydraulic sealing ring material comprises the following components in parts by mass on the basis of 10,000 parts by mass of thermoplastic polyurethane: 1-2 parts of calcium carbonate, 1-2 parts of calcium silicate, 1-2 parts of zinc silicate, 1-2 parts of nano silicon dioxide, 5-30 parts of cross-linking agent and 5-6 parts of plasticizer. When the thermoplastic polyurethane hydraulic sealing ring material provided by the invention is made into a sealing ring, the service life is remarkably prolonged during normal use or at high temperature and high pressure.
Description
Technical field:
The present invention relates to the production of hydraulic seal circle, particularly a kind of prescription of thermoplastic polyurethane hydraulic seal loop material and production technique and using method.
Background technology:
Resistant to elevated temperatures thermoplastic polyurethane (TPU) raw material is the starting material of making the best over-all properties of hydraulic seal circle at present.But the hydraulic seal circle of making of these starting material does not reach actual service requirements and performance fully.There is two large problems:
1, the inefficacy speed of product is fast when high temperature, high pressure.
2, the reciprocating life-span is short.Generally can only use about half a year.
How to improve thermoplastic polyurethane hydraulic seal circle work-ing life and improve its high temperature resistant, high-voltage resistance capability, be to allow the problem of whole world thermoplastic polyurethane hydraulic seal circle manufacturer headache always.Want to allow resistant to elevated temperatures thermoplastic polyurethane (TPU) raw material can produce the high performance hydraulic seal that satisfies our service requirements, just must carry out modification and handle this material.My company is through for many years formula test, to the performance of macromolecular material and mechanism grope inquire into.Finally find and grasped one very reasonable, the modified formula technology of resistant to elevated temperatures accurately thermoplastic polyurethane raw material.Produced on the present domestic or world market and all can be rated as high-quality thermoplastic polyurethane hydraulic seal circle.
Summary of the invention:
The present invention invents in order to solve above-mentioned prior art problem just a kind ofly has high temperature resistant, high pressure ability, a long lasting thermoplastic polyurethane hydraulic seal loop material prescription.
The present invention realizes by following technique means:
A kind of thermoplastic polyurethane hydraulic seal loop material prescription is a main raw material by resistant to elevated temperatures thermoplastic polyurethane, also includes lime carbonate, Calucium Silicate powder, zinc silicate, nano silicon, linking agent and softening agent in the described prescription; Described main prescription quality proportioning is for being equipped with 1～2 part lime carbonate, 1～2 part Calucium Silicate powder, 1～2 part of zinc silicate, 1～2 part of nano silicon, 5～30 parts linking agent and 5～60 parts softening agent on 10000 parts thermoplastic polyurethane basis.
The preferred phthalic acid di-allyl ester of described linking agent.
Described softening agent is preferably mixed and is formed by dibutyl phthalate, diethyl phthalate, diisobutyl phthalate, and concrete quality proportioning is that 5～20 parts dibutyl phthalate is equipped with 5～20 parts of diethyl phthalates and 5～20 parts of diisobutyl phthalates.
Production technique and using method that above-mentioned thermoplastic polyurethane hydraulic seal loop material is specifically made sealing-ring are: after chemical action takes place for above additive and thermoplastic polyurethane material, changed original thermoplastic polyurethane material's performance, utilize injection molding technology, heat the material to 200～230 ℃, injection moulding, cooling, moulding, half-finished subsequent disposal, the thermoplastic polyurethane hydraulic seal circle of producing is in high temperature resistant, high pressure ability, and aspect such as long-lasting has increased significantly.
Thermoplastic polyurethane hydraulic seal loop material provided by the invention, when making sealing-ring, following work-ing life significant raising has been arranged all in normal use or high temperature, high-pressure situations, concrete effect can be passed through " hydraulic reciprocating movement sealing member standard of performance testing table " testing authentication.The result who draws is as shown in the table.Contrast object of reference: Japanese N company product, U.S. P company product, Britain H company product.
Test result is as follows under the same conditions for each company's product:
Condition: operating pressure: 31.5MPa travelling speed: 500mm/s range ability: 92 ℃～95 ℃ of 60 ℃～65 ℃ piston rod temperature of 500mm test oil temperature
Testing data and test-results such as following table:
Each company's thermoplastic polyurethane hydraulic seal experimental data synopsis
Remarks: publish in the cutting edge technology column of the testing data of above comparative analysis as " hydropneumatic sealing trade information " total the 86th phase of the 03rd phase of our country.
Result by test learns that the material modification technology of the thermoplastic polyurethane hydraulic seal circle of my company has reached international most advanced level.
Embodiment:
Embodiment 1:
A kind of thermoplastic polyurethane hydraulic seal loop material prescription includes the softening agent of 10000 parts thermoplastic polyurethane, 1～2 part lime carbonate, 1～2 part Calucium Silicate powder, 1～2 part of zinc silicate, 1～2 part of nano silicon, 5～30 parts of linking agents and 5～60 parts.
Softening agent is made up of dibutyl phthalate, diethyl phthalate, diisobutyl phthalate, and concrete quality proportioning is that 5～20 parts dibutyl phthalate is equipped with 5～20 parts of diethyl phthalates and 5～20 parts of diisobutyl phthalates.
The preferred phthalic acid di-allyl ester of above-mentioned linking agent.
Embodiment 2:
A kind of thermoplastic polyurethane hydraulic seal loop material prescription includes the softening agent of 10000 parts thermoplastic polyurethane, 2 parts lime carbonate, 2 parts Calucium Silicate powder, 1 part of zinc silicate, 1 part of nano silicon, 30 parts of linking agents and 30 parts.
Linking agent is the phthalic acid di-allyl ester, and softening agent is that 1: 1: 1 dibutyl phthalate of mass ratio, diethyl phthalate, diisobutyl phthalate mix.
Embodiment 3:
A, at first will prepare starting material according to the formulation ratio of embodiment 1 or 2;
B, in the thermoplastic polyurethane material, add earlier lime carbonate, Calucium Silicate powder, zinc silicate, nano silicon; Back adding linking agent and softening agent and stirring are allowed to condition under the normal temperature and fully chemical reaction take place 1～10 hour, mix;
C, will more than obtain the thermoplastic polyurethane material of modification, utilize injection moulding machine, pass through injection molding technology, temperature is controlled at 200～230 ℃, be expelled in the mould, cooling then, moulding and half-finished subsequent disposal can be produced thermoplastic polyurethane hydraulic seal circle.
More than be that a kind of thermoplastic polyurethane hydraulic seal loop material prescription provided by the present invention and production technique thereof and using method are described in detail, used specific case herein prescription of the present invention and preparation technology thereof and using method are set forth, above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part in specific embodiments and applications all can change.In sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. a thermoplastic polyurethane hydraulic seal loop material prescription is a main raw material by resistant to elevated temperatures thermoplastic polyurethane, it is characterized in that: also include lime carbonate, Calucium Silicate powder, zinc silicate, nano silicon, linking agent and softening agent in the described prescription; Described main prescription quality proportioning is for being equipped with the softening agent of 1～2 part lime carbonate, 1～2 part Calucium Silicate powder, 1～2 part of zinc silicate, 1～2 part of nano silicon, 5～30 parts of linking agents and 5～60 parts on 10000 parts thermoplastic polyurethane basis.
2. thermoplastic polyurethane hydraulic seal loop material according to claim 1 prescription is characterized in that: described prescription can also be for being equipped with the softening agent of 2 parts lime carbonate, 2 parts Calucium Silicate powder, 1 part of zinc silicate, 1 part of nano silicon, 30 parts of linking agents and 30 parts on 10000 parts thermoplastic polyurethane basis.
3. thermoplastic polyurethane hydraulic seal loop material prescription according to claim 1, it is characterized in that: described linking agent is the phthalic acid di-allyl ester.
4. thermoplastic polyurethane hydraulic seal loop material prescription according to claim 1 and 2, it is characterized in that: described softening agent is made up of dibutyl phthalate, diethyl phthalate, diisobutyl phthalate, and concrete quality proportioning is that 5～20 parts dibutyl phthalate is equipped with 5～20 parts of diethyl phthalates and 5～20 parts of diisobutyl phthalates.
5. the production technique of a thermoplastic polyurethane hydraulic seal circle as claimed in claim 1 or 2, it is characterized in that: a, in the thermoplastic polyurethane material, add lime carbonate, Calucium Silicate powder, zinc silicate, nano silicon earlier, and then add linking agent and softening agent and stir and treat that it chemical reaction takes place 1～10 hour, and mix and obtain thermoplastic polyurethane hydraulic seal loop material; B, with the thermoplastic polyurethane hydraulic seal loop material after the modification with injection molding technology with material be heated to 200～230 ℃ be molten after, injection moulding successively, cooling, moulding and work in-process subsequent disposal are produced thermoplastic polyurethane hydraulic seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042722A CN102127293B (en) | 2010-01-12 | 2010-01-12 | Formula and production process of thermoplastic polyurethane hydraulic sealing ring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042722A CN102127293B (en) | 2010-01-12 | 2010-01-12 | Formula and production process of thermoplastic polyurethane hydraulic sealing ring material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102127293A true CN102127293A (en) | 2011-07-20 |
| CN102127293B CN102127293B (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010042722A Expired - Fee Related CN102127293B (en) | 2010-01-12 | 2010-01-12 | Formula and production process of thermoplastic polyurethane hydraulic sealing ring material |
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| CN (1) | CN102127293B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335797A (en) * | 2013-06-09 | 2013-10-02 | 武汉亚普汽车塑料件有限公司 | Car plastic fuel tank oil pump installation performance and sealing performance verification method |
| CN104974492A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Sealing ring used for sealing guide wheel center shaft and manufacturing method thereof |
| CN113248905A (en) * | 2021-04-09 | 2021-08-13 | 徐州特力优新材料科技有限公司 | Production and processing technology of temperature change resistant polyurethane hydraulic sealing material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4426943A1 (en) * | 1994-07-29 | 1996-02-01 | Bayer Ag | Polyurethane molding compounds |
| DE102004062588A1 (en) * | 2004-12-24 | 2006-07-06 | Degussa Ag | Highly reactive uretdione-containing polyurethane compositions based on 1,4-diisocyanatocyclohexylmethane |
| JP5035500B2 (en) * | 2006-01-25 | 2012-09-26 | 日本ポリウレタン工業株式会社 | Method for producing colored resin powder |
| CN101298513B (en) * | 2008-06-13 | 2010-10-13 | 上海世鹏聚氨酯科技发展有限公司 | Halogen-free inorganic nanometer modified polyurethane electronic flame-retardant film material |
-
2010
- 2010-01-12 CN CN201010042722A patent/CN102127293B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335797A (en) * | 2013-06-09 | 2013-10-02 | 武汉亚普汽车塑料件有限公司 | Car plastic fuel tank oil pump installation performance and sealing performance verification method |
| CN103335797B (en) * | 2013-06-09 | 2015-07-22 | 武汉亚普汽车塑料件有限公司 | Car plastic fuel tank oil pump installation performance and sealing performance verification method |
| CN104974492A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Sealing ring used for sealing guide wheel center shaft and manufacturing method thereof |
| CN113248905A (en) * | 2021-04-09 | 2021-08-13 | 徐州特力优新材料科技有限公司 | Production and processing technology of temperature change resistant polyurethane hydraulic sealing material |
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| Publication number | Publication date |
|---|---|
| CN102127293B (en) | 2012-10-03 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN TULAOGE SEALING ELEMENT CO., LTD. Free format text: FORMER OWNER: SHENZHEN FUYANG SEALS CO., LTD. Effective date: 20150318 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150318 Address after: 518000, 11, third industrial zone, Kwai Fong community, Kwai Chung office, Dapeng District, Guangdong, Shenzhen Patentee after: Shenzhen earth brother seals Co., Ltd. Address before: 1, 23, 518000, Xingye Road, old cattle village, Shenzhen Lake Road, Baoan District, Guangdong Province Patentee before: Shenzhen Fuyang Seals Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20210112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |