CN101818806B - Fluorine and silicone material coating for elastomer and production method thereof and valve applied thereof - Google Patents
Fluorine and silicone material coating for elastomer and production method thereof and valve applied thereof Download PDFInfo
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- CN101818806B CN101818806B CN 201010122360 CN201010122360A CN101818806B CN 101818806 B CN101818806 B CN 101818806B CN 201010122360 CN201010122360 CN 201010122360 CN 201010122360 A CN201010122360 A CN 201010122360A CN 101818806 B CN101818806 B CN 101818806B
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- coupling agent
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Abstract
The invention discloses a fluorine and silicone material coating for an elastomer, which has a matrix made of an elastic rubber, wherein the surface of the matrix has a coating bottom layer consisting of an alcohol coupling agent and the surface of the coating bottom layer is a coating surface layer made of fluorine-containing colloidal silica. The invention also discloses a method for manufacturing the coating. In the invention, the fluorine-containing colloidal silica is adopted to coat the elastic rubber and polyalcohol is used as the coupling agent to make the fluorine-containing colloidal silica coated on the rubber matrix with a satisfactory coating effect. The manufactured coating has the advantages of viscosity resistance, chemical medium (acids, alkalis and chemical solvents) resistance, resistance to the high temperature of 200 DEG C, self-lubrication, wear resistance, aging resistance and adhesion resistance. The coating is particularly applied in corrosive environments and is durable and very safe.
Description
Technical field
The present invention relates to the high polymer material technology Application Areas, relate in particular to the technical field that a kind of elastomerics coats.
Background technology
Rubber elastomer has elasticity, toughness, often is used to the purposes such as sealing, buffering, especially is common on all kinds of flexible parent metal goods such as sealing member, gasket seal, rubber oil sea, automobile sealed, rubber gasket.Some application scenario need to be in high pressure, corrosive environment for a long time, such as the rubber elastomer that is used in the gas line valve, such as diaphragm seal, O-ring seal etc., easily distortion behind life-time service, even stick together with valve cavity wall or other contact component, affect the normal use of valve, can't satisfy seal request, cause potential safety hazard.
In order to solve the adhesion problems of rubber item, existing way is to cover coating at rubber surface, such as polyurethane coating or iron chlorine dragon (PTFE) etc., through reducing to a certain extent the frictional coefficient of product after the coating processing, improve wear resistance, non-viscosity etc.But the Working environment for harsh even temporarily solved problem, still adhesion can occur, thereby have influence on the use of element, even directly affect to security in the situation of life-time service.How to solve between coating and elastic rubbery body in conjunction with problem, also be an existing difficult point.
Summary of the invention
The object of the present invention is to provide a kind of rubber item that is suitable for being applied to the environment such as high pressure, corrosion, can solve poor durability and adhesion problems.
Another object of the present invention is to provide the manufacture method of this paracril fluorine silicone material coating.
In order to reach the foregoing invention purpose, the present invention has adopted following technical scheme: a kind of elastomeric fluorine silicone material coating, has the matrix that an elastic caoutchouc is made, matrix surface has a coating bottom that is formed by the alcohols coupling agent, coats bottom surface and be a coating top layer that is formed by the silica containing fluorine body.
Described matrix is made by paracril.
Described fluorine silicon colloid is comprised of the composition of following mass percentage content: TFE:70～90%, modified silicon rubber: 3～4%, MoS
2: 1～2%, reach solvent.Described modified silicon rubber is pure dissolubility emulsification silicon liquid.
Described alcohols coupling agent is comprised of the composition of following mass percentage content: dehydrated alcohol: 90%～98%, VF
2: 2～10%.
A kind of manufacture method of elastomeric fluorine silicone material coating is characterized in that may further comprise the steps:
(A) by following formulated polyalcohols coupling agent mixture:
(B) by following formulated fluorine silicon mixing solutions:
(C) matrix of paracril being made carries out surface treatment, and then the alcohols coupling agent mixture made by steps A of atomizing spraying is then dry, forms bottom and coats;
(D) bottom surface that step C is formed covers the fluorine silicon mixing solutions that is formed by step B preparation, then carries out crosslinking Treatment, forms the silica containing fluorine surface layer and coats;
A kind of valve, comprise hollow by the non-valve casing that made by the magnetic material, the valve casing overcoat has the magnetic core controller of annular, be provided with the location regulating spring in the valve casing chamber, be subjected to the magnetic core of magnetic core controller magnetic pole control to reach the diaphragm seal that is used for sealing valve casing gas output end, described diaphragm seal is used elastomeric fluorine silicone material coating as indicated above, described diaphragm seal has a matrix that adopts paracril to make, matrix surface has a coating bottom that is formed by the alcohols coupling agent, coats bottom surface and be a coating top layer that is formed by the silica containing fluorine body.
The present invention adopts the fluorine colloidal silica to coat elastic caoutchouc, as coupling agent the fluorine silicon colloid is coated on the rubber matrix with polyalcohols and can reaches satisfactory covered effect, it is good to make the cladding resistance to bond of coming, have resistant to chemical media (acid, alkali, chemical solvents), high temperature resistant 200 ℃, self-lubricating, wear-resisting, ageing-resistant, antiseized advantage, especially be applied in the occasion of corrosive atmosphere, durable in use, security is good.
Description of drawings
Fig. 1 is the structural representation of the sealing gasket for valve made by method of the present invention.
Fig. 2 is the structural representation of using valve of the present invention.
Embodiment
Make according to the following steps cladding:
(A) by following formulated polyalcohols coupling agent mixture (mass percentage content):
Dehydrated alcohol C
2H
5OH:90%～98%, preferred content are 94～96%.
VF
2(vinylidene): (2～10) %, preferred content are 4～6%.
(B) by following formulated fluorine silicon mixing solutions (mass percentage content):
The TFE(tetrafluoroethylene): 70%～90%, preferred content is 82～87%;
Auxiliary agent: modified silicon rubber: 3～4%; Modified silicon rubber can adopt pure dissolubility silicone emulsion, such as aqueous emulsion of dimethyl polysiloxane fluid, and hydroxyl silicone emulsion etc., its effect is to increase elasticity and soft degree.
MoS
2:1～2%; Its effect is to increase self-lubricating property.
All the other are solvent, and solvent can be selected alcoholic solvent, ethanol, and propyl carbinol, mixed alcohols, or lac etc., preferred environmentally friendly solvent.
(C) make as shown in Figure 1 gasket seal as matrix with paracril, carry out surface treatment, namely carry out surface cleaning, remove the spot oil stain on surface, in order to avoid the spot oil stain affects sticking power, then the alcohols coupling agent mixture made by steps A of atomizing spraying is then dry, forms bottom and coats;
Drying process can be in the stainless steel rotating cylinder of certain rotating speed, and operation is 30 minutes under 120 ℃ temperature, volatilizees fully for good to solvent.
(D) bottom surface that forms at step C covers the fluorine silicon mixing solutions that is formed by step B preparation by atomizing spraying, crosslinking reaction 10 minutes under 160 ℃ of conditions then, and the condition of crosslinking reaction is to form the coating of silica containing fluorine surface layer.
Make valve spacer 6 by above step, its matrix 61 is paracril, has a coating bottom 62 that is formed by the alcohols coupling agent at matrix surface, coats bottom surface and be a coating top layer 63 that is formed by the silica containing fluorine body.
The product that forms at last satisfies following technical requirements:
Hardness: Shao Shi 70 degree ± 3
Elongation rate of tensile failure (%): 250
Compression set≤25
90 ℃～-25 ℃ of heatproofs (use temperature)
Wear resistance (CM
3/ 1.61KM): 0.35
Anti-viscosity: 1,000 ten thousand not sticking (frequency 50/ minute) metalworks of upper underdrive; The 2Kg hammer in test piece, 720 hours sticking metalworks;
Weather resistance: 10 years
Media-resistant: contact indeformable to petroleum-type lubricating oil, acid, alkali
Multiplicity: do not peel off not delamination
The gasket seal 6 of making is used for valve as shown in Figure 2, and what this valve comprised hollow has the magnetic core controller 5 of annular by non-valve casing 1, the valve casing overcoat that is subjected to the manufacturing of magnetic material.Be provided with retainer spring 9, magnetic core 8 and diaphragm seal 6 in the valve casing 1.Diaphragm seal 6 is made for rubber, preferred paracril, and it is coated with the colloid of fluorine silicon, and its cross-section structure is as shown in Figure 1.Magnetic core controller 5 moves by the Polarity Control magnetic core 8 of magnetic pole, and diaphragm seal 6 is cooked with magnetic core 8 and is synchronized with the movement, thereby indirectly is subjected to the control sealing of magnetic core controller or opens the valve seat 11 of valve casing 1, blocks or be communicated with the gas output end of valve casing.
Through the repeated detection test, gasket seal 6 can not stick together with metal valve casing 1 inner chamber of valve, closes or open valve under the control of magnetic core controller, has long-lived sealing effectiveness.
Claims (5)
1. elastomeric fluorine silicone material coating, it is characterized in that: have the matrix that a paracril is made, matrix surface has a coating bottom that is formed by the alcohols coupling agent, coat bottom surface and be a coating top layer that is formed by the silica containing fluorine body, described fluorine silicon colloid is comprised of the composition of following mass percentage content: TFE:70～90%, modified silicon rubber: 3～4%, MoS
2: 1～2%, reach solvent.
2. elastomeric fluorine silicone material coating according to claim 1, it is characterized in that: described modified silicon rubber is pure dissolubility emulsification silicon liquid.
3. elastomeric fluorine silicone material coating according to claim 1, it is characterized in that: described alcohols coupling agent is comprised of the composition of following mass percentage content: dehydrated alcohol: 90～98%, VF
2: 2～10%.
4. the manufacture method of an elastomeric fluorine silicone material coating is characterized in that may further comprise the steps:
(A) by the formulated polyalcohols coupling agent mixture of following quality percentage composition:
Dehydrated alcohol C
2H
5OH:90%～98%, vinylidene 2～10%;
(B) by the formulated fluorine silicon mixing solutions of following quality percentage composition:
Tetrafluoroethylene 70%～90%;
Auxiliary agent: modified silicon rubber 3～4%, MoS
2:1～2%;
Solvent;
(C) matrix of paracril being made carries out surface treatment, and then the alcohols coupling agent mixture made by steps A of atomizing spraying is then dry, forms bottom and coats;
(D) bottom surface that step C is formed covers the fluorine silicon mixing solutions that is formed by step B preparation, then carries out crosslinking Treatment, forms the silica containing fluorine surface layer and coats.
5. valve, comprise hollow by the non-valve casing that made by the magnetic material, the valve casing overcoat has the magnetic core controller of annular, be provided with the location regulating spring in the valve casing chamber, be subjected to the magnetic core of magnetic core controller magnetic pole control to reach the diaphragm seal that is used for sealing valve casing gas output end, it is characterized in that: described diaphragm seal is used elastomeric fluorine silicone material coating as claimed in claim 1, described diaphragm seal has a matrix that adopts paracril to make, matrix surface has a coating bottom that is formed by the alcohols coupling agent, coats bottom surface and be a coating top layer that is formed by the silica containing fluorine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122360 CN101818806B (en) | 2010-03-09 | 2010-03-09 | Fluorine and silicone material coating for elastomer and production method thereof and valve applied thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122360 CN101818806B (en) | 2010-03-09 | 2010-03-09 | Fluorine and silicone material coating for elastomer and production method thereof and valve applied thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101818806A CN101818806A (en) | 2010-09-01 |
| CN101818806B true CN101818806B (en) | 2013-04-17 |
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ID=42654014
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010122360 Active CN101818806B (en) | 2010-03-09 | 2010-03-09 | Fluorine and silicone material coating for elastomer and production method thereof and valve applied thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367841Y (en) * | 1999-04-01 | 2000-03-08 | 杨永利 | Compound sealing component |
| CN2440596Y (en) * | 2000-09-26 | 2001-08-01 | 刘淑秀 | Fluorine silica gel roller of copier |
| WO2010007439A2 (en) * | 2008-07-16 | 2010-01-21 | James Walker & Co. Ltd. | Seal |
| CN201648279U (en) * | 2010-03-09 | 2010-11-24 | 廖新桃 | Elastomeric fluorine-silicon material coating body and valve applying the same |
-
2010
- 2010-03-09 CN CN 201010122360 patent/CN101818806B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367841Y (en) * | 1999-04-01 | 2000-03-08 | 杨永利 | Compound sealing component |
| CN2440596Y (en) * | 2000-09-26 | 2001-08-01 | 刘淑秀 | Fluorine silica gel roller of copier |
| WO2010007439A2 (en) * | 2008-07-16 | 2010-01-21 | James Walker & Co. Ltd. | Seal |
| CN201648279U (en) * | 2010-03-09 | 2010-11-24 | 廖新桃 | Elastomeric fluorine-silicon material coating body and valve applying the same |
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| Publication number | Publication date |
|---|---|
| CN101818806A (en) | 2010-09-01 |
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Effective date of registration: 20160901 Address after: 510000 15, two st 901, Science City, Guangzhou hi tech Development Zone, Guangdong, China Patentee after: GUANGZHOU KAIHENG VALVE CO., LTD. Address before: Two. Room 203, No. 1805, Whampoa Avenue, Guangdong, Guangzhou, 510655 Patentee before: Liao Xintao |