CN103224576A - Fluorine rubber with high fluorine content on surface, and preparation method thereof - Google Patents
Fluorine rubber with high fluorine content on surface, and preparation method thereof Download PDFInfo
- Publication number
- CN103224576A CN103224576A CN2013101559954A CN201310155995A CN103224576A CN 103224576 A CN103224576 A CN 103224576A CN 2013101559954 A CN2013101559954 A CN 2013101559954A CN 201310155995 A CN201310155995 A CN 201310155995A CN 103224576 A CN103224576 A CN 103224576A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- gas
- viton
- reactor
- preparation
- 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.)
- Granted
Links
Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a fluorine rubber with high fluorine content on the surface, and a preparation method thereof. The preparation method comprises: placing a fluorine rubber in a vacuum reactor, sequentially introducing fluorine gas mixing gas and hydrogen fluoride gas under nitrogen gas, and carrying out fluorination modification for 0.5-4 h at a temperature of 25-100 DEG C, wherein fluorine gas partial pressure in the reactor is 5-50 KPa, and hydrogen fluoride gas partial pressure in the reactor is 5-10% of the fluorine gas amount, such that a fluorine/carbon ratio on the fluorine rubber surface is 0.265-0.855, and is increased by 28-32% compared to a fluorine/carbon ratio of the main body while a friction coefficient is decreased to 0.302-0.844. According to the present invention, hydrogen fluoride gas capable of producing a catalysis effect is adopted, such that a reaction of fluoride atoms in the fluoride gas mixing gas and the fluorine rubber is effectively promoted so as to improve the fluorine content on the fluorine rubber surface, reduce the friction coefficient, prolong a service life of the fluorine rubber product, and provide characteristics of simple process, low cost, wide application range.
Description
Technical field
The invention belongs to viton and preparing technical field thereof, be specifically related to viton of the high fluorine content in a kind of surface and preparation method thereof.
Background technology
Synthetic rubber commonly used, mainly comprise synthetic polyisoprene, styrene-butadiene rubber(SBR), paracril, ethylene-propylene rubber(EPR), acrylic elastomer, chloroprene rubber or the like, all need to carry out mixing, primary vulcanization and just can make the rubber item that satisfies service requirements through certain sulfurizing formula.But along with the development of aerospace, automobile, petrochemical industry, these synthetic rubber commonly used can't have been resisted the erosion of anti-lubricating oil and oil fuel under higher temperature, therefore need research and development can satisfy the new rubber item of service requirements.
Viton is meant a kind of synthetic macromolecule elastomerics that contains fluorine atom on the carbon atom of main chain or side chain.The introducing of fluorine atom has given viton good thermotolerance, oxidation-resistance, oil-proofness and erosion resistance, makes it in departments such as aerospace, automobile, chemical industry, metallurgy, oil productions the application that can not be substituted be arranged.This a series of premium properties that viton had all comes from the introducing of fluorine atom and the state of saturation of viton, wherein the high bond energy of C-F key and fluorine atom to the shielding effect of C-C key then especially viton possess the major cause of premium properties.
Though viton has good thermotolerance, oxidation-resistance, oil-proofness and erosion resistance, but viton is as a kind of high molecular synthetic material, it also can be the same with other high molecular synthetic material, use and storage process in since hot, oxygen with and Working environment in the acting in conjunction of factors such as stress, medium, its performance can be in time passing and descend even forfeiture use properties gradually.In addition, the wear resisting property of viton (frictional coefficient is usually greater than 1) is also not fully up to expectations, remains further to be improved.In order to overcome the above-mentioned deficiency of viton, the scientific worker further introduces fluorine atom from the angle of Molecular Structure Design in the viton body.But a large amount of introducings of fluorine atom can cause the significantly increase of production cost, can cause that simultaneously viton molecular chain rigidity increases, and may lose the elastic performance of rubber.In order when increasing production cost not significantly, to guarantee the bulk properties of viton, improve its wear resisting property, it is a kind of efficient manner that viton is carried out surface fluorination.
At present existingly reduce the precedent of material friction coefficient, as people such as the Wang Bin [XeF of paracril of Xibei Nuclear Techn Inst by the direct fluorination technology in surface
2Surface fluorination and modification research, [J] applied chemistry, 1997.14 (5): 51-54] employing XeF
2Paracril is carried out surface fluorination, effectively reduce paracril surface particles and segmentation crack with and frictional coefficient (frictional coefficient is reduced to 0.12 by 0.81), improved its abrasion resistance properties.Among the U.S. Pat Patent 5214102 employing F is disclosed also and for example
2The method of materials such as fluorinated ethylene propylene rubber, this method also effectively reduces its static state and dynamic friction coefficient, has improved its abrasion resistance properties.But, the matrix itself of fluoridizing in these the result of study is not contain fluorine element, therefore fluorination process is easy to carry out, if but the viton body has contained a large amount of fluorine atoms, rethink that to fluoridize with fluorine gas on its surface be very difficult, as disclosed (the The kinetics and mechanism of the direct fluorination of polyethylenes of A.P.Kharitonov, J Surface Coatings International Part B 2005.88.B3:157-230) has just reported in the document that polyvinylidene difluoride (PVDF) is difficult to use fluorine gas to be fluoridized.And well-known, viton adopts other monomer copolymerizations such as vinylidene and R 1216 to form exactly, thus viton to fluoridize difficulty very big.
Summary of the invention
Primary and foremost purpose of the present invention is the deficiency that is difficult to viton is carried out again surface fluorination at prior art, and providing a kind of can fluoridize the viton surface, to improve the preparation method of surperficial fluorine content.
Secondary objective of the present invention provides a kind of viton of the surperficial high fluorine content by method for preparing.
The preparation method of the viton of the surperficial high fluorine content that reaches primary and foremost purpose of the present invention and provide, it is characterized in that this method is earlier viton to be placed vacuum reactor, vacuumize then, and with behind the air in the nitrogen replacement reactor, in vacuum reactor, charge into fluorine gas gas mixture and hydrogen fluoride gas more successively, and under 25～100 ℃, its surface was carried out fluorinated modified 0.5～4 hour, can obtain the viton of surperficial high fluorine content.Wherein the dividing potential drop of fluorine gas in reactor is 5～50KPa, and the dividing potential drop of hydrogen fluoride gas in reactor is 5 ~ 10% of fluorine gas consumption.
The dividing potential drop of fluorine gas in reactor is preferably 10～40KPa in the aforesaid method, 20 KPa more preferably, the dividing potential drop of hydrogen fluoride gas in reactor is 5 ~ 10% of fluorine gas consumption, more preferably 5%, temperature of reaction is preferably 40 ~ 100 ℃, and the reaction times is preferably 1 ~ 4 hour.
Used viton is unvulcanized 26 type viton goods, 246 type viton goods or fluoroether rubber goods in the aforesaid method, with 26 type viton goods, 246 type viton goods or the fluoroether rubber goods after the sulfuration.
The used various viton goods that do not vulcanize are meant and unvulcanized viton are adopted certain temperature and pressure in mould, the not sulfuration viton goods of typing in the aforesaid method.
Used fluorine gas mixed gas is any composition in fluorine gas and nitrogen, argon gas, the carbonic acid gas in the aforesaid method.
The viton of the surperficial high fluorine content by method for preparing provided by the invention, the fluorine/carbon ratio that it is characterized in that this viton surface is 0.265 ~ 0.855, its frictional coefficient is 0.302 ~ 0.844.
The present invention compared with prior art has following beneficial effect:
1, owing to contains the hydrogen fluoride gas that can produce katalysis in the fluorine gas gas mixture that adopts in the method provided by the invention, thereby can promote the fluorine atom in the fluorine gas gas mixture and the reaction of viton effectively, improve the efficient of fluoridizing of fluoridizing the stage, guarantee that the viton surface energy improves fluorine content effectively, solved prior art and directly fluoridized a difficult problem that is difficult to improve viton surface fluorine content.
2, because method provided by the invention makes whole reaction system oxygen-free gas, thereby not only can improve the fluorination rates of fluoridizing the stage effectively, shorten the processing cycle, reduce production costs, also can be implemented in wire gauge modelling continuous surface fluoridation.
3, because viton provided by the invention has the viton of high fluorine content for its surface, thereby it has not only filled up the blank that present prior art does not also have the viton of surperficial high fluorine content, and can be when not influencing the viton bulk properties, obviously reduce the frictional coefficient on viton surface, strengthen viton abrasion resistance properties and ageing resistance, prolong the work-ing life of viton goods, improve the competitive power in its added value and market greatly.
4, viton is carried out the surface fluorination chemical reaction with fluorine gas prepare viton owing to the present invention under certain process conditions with high fluorine content, thereby not only can prepare the serial viton of surperficial different fluorine content, different surfaces performance neatly by control to direct flaorination process, and technology simple controllable, cost is lower, has stronger application prospect.
Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further specified; can not be interpreted as limiting the scope of the invention; some nonessential improvement and adjustment that the person skilled in the art in this field makes according to the content of the invention described above still belong to protection scope of the present invention.
What deserves to be explained is in addition, the surface that following examples make the directly surperficial fluorine content of fluorinated modified viton is to measure by x-ray photoelectron power spectrum (XPS), skin friction coefficient is measured according to GJB5870-2006 A method standard, tensile strength is measured according to GB/T 528-2009 standard, and hardness is measured according to ISO 7619-1:2004 standard.Test result sees Table 1 ~ 3 respectively by 26 type viton, 246 type viton, fluoroether rubber.
Embodiment 1
26 type viton, 246 type viton, fluoroether rubber after the sulfuration are placed the enclosed vacuum reactor, vacuumize, and with behind the air in the nitrogen replacement reactor three times, in vacuum reactor, charge into the fluorine gas gas mixture, the dividing potential drop of control fluorine gas in reactor is 20kPa, wherein the hydrogen fluoride gas dividing potential drop is 1kPa, and carries out surface fluorination and handled 4 hours under 65 ℃.After using the nitrogen replacement fluorinated gas at last, open reactor viton is taken out, in air, preserved at least 3 hours, promptly obtain the viton of surperficial high fluorine content.
Embodiment 2
It is 5kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 0.25kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 3
It is 10kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 0.5kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 4
It is 40kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 2kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 5
It is 50kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 2.5kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 6
Present embodiment is the 1.2kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 7
Present embodiment is the 1.6kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 8
Present embodiment is the 2kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 9
Present embodiment is 25 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 10
Present embodiment is 40 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 11
Present embodiment is 80 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 12
Present embodiment is 100 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 13
Present embodiment is 0.5 hour except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 14
Present embodiment is 1 hour except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 15
Present embodiment is 2 hours except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Embodiment 16
26 type viton after mixing, 246 type viton, fluoroether rubber rubber are placed mould, be lower than pressurization typing under the curing temperature (as 130 ℃).And then place the enclosed vacuum reactor, vacuumize, and with behind the air in the nitrogen replacement reactor three times, in vacuum reactor, charge into the fluorine gas gas mixture, the dividing potential drop of control fluorine gas in reactor is 20kPa, wherein the hydrogen fluoride gas dividing potential drop is 1kPa, and carries out surface fluorination and handled 4 hours under 65 ℃.After using the nitrogen replacement fluorinated gas at last, open reactor 26 type crude fluororubber are taken out, in air, preserved at least 3 hours.26 type viton after will fluoridizing then, 246 type viton, fluoroether rubber rubber place the mould press vulcanization that heats up, and promptly obtain the viton of surperficial high fluorine content.
Embodiment 17
It is 5kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 0.25kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 18
It is 10kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 0.5kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 19
It is 40kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 2kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 20
It is 50kPa that present embodiment removes control fluorine gas dividing potential drop in reactor, and the hydrogen fluoride gas dividing potential drop is outside the 2.5kPa, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 21
Present embodiment is the 1.2kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 22
Present embodiment is the 1.6kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 23
Present embodiment is the 2kPa except that control hydrogen fluoride gas dividing potential drop in reactor, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 24
Present embodiment is 25 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 25
Present embodiment is 40 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 26
Present embodiment is 80 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 27
Present embodiment is 100 ℃ except that control reaction temperature, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 28
Present embodiment is 0.5 hour except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 29
Present embodiment is 1 hour except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Embodiment 30
Present embodiment is 2 hours except that controlling reaction time, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Comparative Examples 1
26 type viton after the sulfuration, 246 type viton, fluoroether rubber place air to preserve, and do not do any surface treatment.
Comparative Examples 2
This Comparative Examples is not except that adding in the fluorine gas gas mixture the hydrogen fluoride gas, and all the other flaorination process are not stated so omit because of identical with embodiment 1.
Comparative Examples 3
This Comparative Examples is not except that adding in the fluorine gas gas mixture the hydrogen fluoride gas, and all the other flaorination process are not stated so omit because of identical with embodiment 16.
Table 1
| Embodiment | Frictional coefficient | Hardness | Fluorine/carbon ratio | Tensile strength (MPa) |
| 1 | 0.572 | 68 | 0.567 | 17.4 |
| 2 | 0.813 | 67 | 0.255 | 17.3 |
| 3 | 0.674 | 67 | 0.412 | 17.4 |
| 4 | 0.544 | 68 | 0.686 | 17.0 |
| 5 | 0.514 | 69 | 0.804 | 16.8 |
| 6 | 0.577 | 67 | 0.588 | 17.4 |
| 7 | 0.565 | 68 | 0.623 | 17.2 |
| 8 | 0.584 | 67 | 0.655 | 17.3 |
| 9 | 0.567 | 67 | 0.456 | 17.4 |
| 10 | 0.588 | 68 | 0.522 | 17.3 |
| 11 | 0.554 | 68 | 0.636 | 17.2 |
| 12 | 0.530 | 68 | 0.662 | 17.0 |
| 13 | 0.706 | 69 | 0.327 | 17.2 |
| 14 | 0.585 | 68 | 0.391 | 17.2 |
| 15 | 0.574 | 68 | 0.409 | 17.3 |
| 16 | 0.772 | 68 | 0.401 | 17.2 |
| 17 | 0.844 | 68 | 0.246 | 17.3 |
| 18 | 0.800 | 68 | 0.325 | 17.2 |
| 19 | 0.672 | 67 | 0.607 | 17.0 |
| 20 | 0.766 | 67 | 0.682 | 16.7 |
| 21 | 0.750 | 68 | 0.433 | 17.1 |
| 22 | 0.764 | 68 | 0.467 | 17.0 |
| 23 | 0.712 | 67 | 0.485 | 17.4 |
| 24 | 0.799 | 68 | 0.319 | 17.2 |
| 25 | 0.775 | 68 | 0.319 | 17.3 |
| 26 | 0.754 | 69 | 0.507 | 17.4 |
| 27 | 0.721 | 68 | 0.574 | 17.4 |
| 28 | 0.832 | 68 | 0.249 | 17.3 |
| 29 | 0.811 | 68 | 0.271 | 17.3 |
| 30 | 0.796 | 68 | 0.357 | 17.2 |
| Comparative Examples 1 | 1.023 | 67 | 0.208 | 17.6 |
| Comparative Examples 2 | 0.902 | 67 | 0.221 | 17.5 |
| Comparative Examples 3 | 0.952 | 67 | 0.216 | 17.5 |
Table 2
| Embodiment | Frictional coefficient | Hardness | Fluorine/carbon ratio | Tensile strength (MPa) |
| 1 | 0.555 | 68 | 0.607 | 18.0 |
| 2 | 0.794 | 69 | 0.328 | 17.8 |
| 3 | 0.619 | 68 | 0.479 | 17.7 |
| 4 | 0.578 | 68 | 0.761 | 17.5 |
| 5 | 0.523 | 69 | 0.855 | 17.5 |
| 6 | 0.531 | 67 | 0.633 | 17.6 |
| 7 | 0.518 | 68 | 0.688 | 17.7 |
| 8 | 0.531 | 67 | 0.714 | 17.8 |
| 9 | 0.565 | 68 | 0.487 | 17.9 |
| 10 | 0.542 | 69 | 0.529 | 17.5 |
| 11 | 0.534 | 68 | 0.647 | 17.8 |
| 12 | 0.501 | 68 | 0.697 | 17.9 |
| 13 | 0.733 | 68 | 0.371 | 17.9 |
| 14 | 0.568 | 68 | 0.458 | 18.2 |
| 15 | 0.556 | 69 | 0.542 | 17.6 |
| 16 | 0.671 | 68 | 0.452 | 18.9 |
| 17 | 0.829 | 68 | 0.324 | 18.0 |
| 18 | 0.771 | 68 | 0.392 | 18.0 |
| 19 | 0.627 | 68 | 0.602 | 18.2 |
| 20 | 0.621 | 68 | 0.659 | 17.7 |
| 21 | 0.699 | 69 | 0.461 | 17.9 |
| 22 | 0.667 | 68 | 0.484 | 18.0 |
| 23 | 0.678 | 68 | 0.490 | 17.7 |
| 24 | 0.701 | 67 | 0.349 | 17.8 |
| 25 | 0.688 | 69 | 0.438 | 17.7 |
| 26 | 0.659 | 68 | 0.491 | 17.8 |
| 27 | 0.652 | 68 | 0.586 | 17.7 |
| 28 | 0.851 | 68 | 0.309 | 17.9 |
| 29 | 0.702 | 67 | 0.398 | 18.0 |
| 30 | 0.681 | 68 | 0.432 | 18.1 |
| Comparative Examples 1 | 0.943 | 68 | 0.276 | 18.4 |
| Comparative Examples 2 | 0.932 | 68 | 0.301 | 18.4 |
| Comparative Examples 3 | 0.929 | 68 | 0.232 | 18.2 |
Table 3
| Embodiment | Frictional coefficient | Hardness | Fluorine/carbon ratio | Tensile strength (MPa) |
| 1 | 0.356 | 75 | 0.574 | 16.5 |
| 2 | 0.519 | 75 | 0.294 | 16.5 |
| 3 | 0.439 | 75 | 0.372 | 16.5 |
| 4 | 0.346 | 76 | 0.721 | 16.4 |
| 5 | 0.311 | 75 | 0.797 | 16.3 |
| 6 | 0.349 | 75 | 0.601 | 16.5 |
| 7 | 0.351 | 74 | 0.644 | 16.2 |
| 8 | 0.343 | 76 | 0.688 | 16.2 |
| 9 | 0.369 | 74 | 0.497 | 16.4 |
| 10 | 0.342 | 75 | 0.541 | 16.5 |
| 11 | 0.329 | 74 | 0.601 | 16.4 |
| 12 | 0.302 | 74 | 0.654 | 16.4 |
| 13 | 0.558 | 75 | 0.279 | 16.4 |
| 14 | 0.377 | 75 | 0.423 | 16.7 |
| 15 | 0.351 | 75 | 0.500 | 16.5 |
| 16 | 0.442 | 76 | 0.502 | 16.4 |
| 17 | 0.521 | 76 | 0.321 | 16.3 |
| 18 | 0.476 | 76 | 0.374 | 16.4 |
| 19 | 0.435 | 74 | 0.651 | 16.3 |
| 20 | 0.419 | 75 | 0.667 | 16.4 |
| 21 | 0.433 | 76 | 0.523 | 16.5 |
| 22 | 0.431 | 75 | 0.567 | 16.3 |
| 23 | 0.418 | 75 | 0.573 | 16.2 |
| 24 | 0.488 | 75 | 0.331 | 16.5 |
| 25 | 0.473 | 75 | 0.445 | 16.2 |
| 26 | 0.447 | 76 | 0.558 | 16.3 |
| 27 | 0.445 | 75 | 0.631 | 16.1 |
| 28 | 0.502 | 75 | 0.332 | 16.5 |
| 29 | 0.484 | 76 | 0.459 | 16.3 |
| 30 | 0.463 | 74 | 0.475 | 16.4 |
| Comparative Examples 1 | 0.621 | 74 | 0.214 | 16.8 |
| Comparative Examples 2 | 0.557 | 75 | 0.259 | 16.8 |
| Comparative Examples 3 | 0.587 | 75 | 0.218 | 16.5 |
Claims (6)
1. the preparation method of the viton of the high fluorine content in surface, it is characterized in that this method is earlier viton to be placed vacuum reactor, vacuumize then, and with behind the air in the nitrogen replacement reactor, in vacuum reactor, charge into fluorine gas gas mixture and hydrogen fluoride gas more successively, and under 25～100 ℃, its surface was carried out fluorinated modified 0.5～4 hour, wherein the dividing potential drop of fluorine gas in reactor is 5～50KPa, the dividing potential drop of hydrogen fluoride gas in reactor is 5 ~ 10% of fluorine gas consumption.
2. the preparation method of the viton of the high fluorine content in surface according to claim 1, it is characterized in that the dividing potential drop of fluorine gas in reactor is 10～40KPa in this method, the dividing potential drop of hydrogen fluoride gas in reactor is 5 ~ 10% of fluorine gas consumption, temperature of reaction is 40 ℃ ~ 100 ℃, and the reaction times is 1 ~ 4 hour.
3. the preparation method of the viton of the high fluorine content in surface according to claim 1 and 2, it is characterized in that viton used in this method be unvulcanized 26 type viton goods, 246 type viton goods or fluoroether rubber goods and the sulfuration after 26 type viton goods, 246 type viton goods or fluoroether rubber goods in any.
4. the preparation method of the viton of the high fluorine content in surface according to claim 1 and 2 is characterized in that fluorine gas mixed gas used in this method is any composition in fluorine gas and nitrogen, argon gas, the carbonic acid gas.
5. the preparation method of the viton of the high fluorine content in surface according to claim 3 is characterized in that fluorine gas mixed gas used in this method is any composition in fluorine gas and nitrogen, argon gas, the carbonic acid gas.
6. viton by the surperficial high fluorine content of the described method of claim 1 preparation, the fluorine/carbon ratio that it is characterized in that this viton surface is 0.265 ~ 0.855, its frictional coefficient is 0.302 ~ 0.844.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155995.4A CN103224576B (en) | 2013-04-28 | 2013-04-28 | Fluorine rubber with high fluorine content on surface, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155995.4A CN103224576B (en) | 2013-04-28 | 2013-04-28 | Fluorine rubber with high fluorine content on surface, and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103224576A true CN103224576A (en) | 2013-07-31 |
| CN103224576B CN103224576B (en) | 2015-03-18 |
Family
ID=48835235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155995.4A Active CN103224576B (en) | 2013-04-28 | 2013-04-28 | Fluorine rubber with high fluorine content on surface, and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103224576B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911895A (en) * | 2015-06-15 | 2015-09-16 | 四川大学 | Polyparaphenylene benzo dioxazole fiber containing fluorine on surface and preparation method thereof |
| CN105037758A (en) * | 2015-08-27 | 2015-11-11 | 南昌航空大学 | Cold plasma treatment method for improving adhesive property of fluorosilicone rubber by taking nitrogen gas as treating gas |
| CN109135131A (en) * | 2018-08-01 | 2019-01-04 | 扬中市橡胶塑料厂有限公司 | A kind of super large standard connects mould fluorubber product and its processing technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117736A (en) * | 1993-02-12 | 1996-02-28 | 纳幕尔杜邦公司 | Fluorination of radiation crosslinked perfluoroelastomers |
| CN101880401A (en) * | 2010-06-24 | 2010-11-10 | 洛阳森蓝化工材料科技有限公司 | Polymer surface fluorination technique |
-
2013
- 2013-04-28 CN CN201310155995.4A patent/CN103224576B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117736A (en) * | 1993-02-12 | 1996-02-28 | 纳幕尔杜邦公司 | Fluorination of radiation crosslinked perfluoroelastomers |
| CN101880401A (en) * | 2010-06-24 | 2010-11-10 | 洛阳森蓝化工材料科技有限公司 | Polymer surface fluorination technique |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911895A (en) * | 2015-06-15 | 2015-09-16 | 四川大学 | Polyparaphenylene benzo dioxazole fiber containing fluorine on surface and preparation method thereof |
| CN104911895B (en) * | 2015-06-15 | 2017-04-12 | 四川大学 | Polyparaphenylene benzo dioxazole fiber containing fluorine on surface and preparation method thereof |
| CN105037758A (en) * | 2015-08-27 | 2015-11-11 | 南昌航空大学 | Cold plasma treatment method for improving adhesive property of fluorosilicone rubber by taking nitrogen gas as treating gas |
| CN109135131A (en) * | 2018-08-01 | 2019-01-04 | 扬中市橡胶塑料厂有限公司 | A kind of super large standard connects mould fluorubber product and its processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103224576B (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105778518B (en) | High-hardness extrusion type silicone rubber composition and preparation method thereof | |
| CN101955603B (en) | Heat cold and oil-resistant sizing material | |
| CN102504358A (en) | High-heat-conductivity rubber composite material and preparation method thereof | |
| CN104194079B (en) | A kind of Composite Material Seal Ring and manufacture craft thereof | |
| CN109384983A (en) | A kind of aviation oil resistant high-low temperature resistant rubber and preparation method thereof | |
| CA2958409C (en) | Titanium-based compositions, methods of manufacture and uses thereof | |
| CN103224576B (en) | Fluorine rubber with high fluorine content on surface, and preparation method thereof | |
| EP4155268A1 (en) | Single atom zinc material, rubber article and preparation method thereof | |
| CN113321855A (en) | Low-heat-generation high-wear-resistance white carbon black/rubber composite material and preparation method and application thereof | |
| CN101613496A (en) | A kind of modified glue powder and blend rubber cross-linked rubber and preparation method thereof | |
| CN109370066A (en) | One kind can turning EPDM rubber insulation material and preparation method thereof | |
| CN105330912A (en) | High temperature and corrosion resisting sizing material for rubber sole and preparing technology thereof | |
| CN102030930A (en) | Glue material in formula of tire tread of minicar | |
| CN102634082B (en) | Tire tread base rubber composition and preparation method | |
| CN102432962B (en) | Rubber valve body composite material and preparation method thereof | |
| CN104109265B (en) | A kind of yielding rubber | |
| CN102775662A (en) | Tire flat rubber material | |
| CN114437416B (en) | Vibration damping rubber and preparation method thereof | |
| CN103481209A (en) | Rubber grinding wheel special for bearings and method for producing same | |
| CN108912429A (en) | A kind of ozone proof and corrosion resistant type rubber material and its preparation process | |
| CN104045888A (en) | Chloroprene rubber composition | |
| CN103396590A (en) | High-pressure-resistant pure-oxygen-resistant sealing member sizing material and preparation method thereof | |
| CN105860381A (en) | Low-compression-deformation tetrafluoroethylene-propylene rubber sealing part and preparation method thereof | |
| CN1727423A (en) | Resin binder modified by Nano silicon dioxide, and preparation method | |
| CN105385168A (en) | Two-component bonding nylon silica gel and its preparation method and use method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |