CN101157832A - Adhesive capable of being used for fluororubber binding and preparation method thereof - Google Patents
Adhesive capable of being used for fluororubber binding and preparation method thereof Download PDFInfo
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- CN101157832A CN101157832A CNA2007100315196A CN200710031519A CN101157832A CN 101157832 A CN101157832 A CN 101157832A CN A2007100315196 A CNA2007100315196 A CN A2007100315196A CN 200710031519 A CN200710031519 A CN 200710031519A CN 101157832 A CN101157832 A CN 101157832A
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- acid
- fluororubber
- organic solvent
- acceptor
- filler
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Abstract
The invention provides an adhesive used for adhesion of fluororubber and a preparation method thereof. The adhesive used for the adhesion of the fluororubber consists of the following components according to weight ratio: raw fluororubber 100, acid absorbing agent 9-12, filling 10-30, dyes 0-10, and curing system 2.1-2.8, as well as organic solvent and organic acid. The preparation method of the adhesive is that: (1) The components are prepared with a certain quantity; (2) the raw fluororubber, the acid absorbing agent, the filling, the dyes, the curing system are mixed to get rubber compounds; (3) after the organic solvent and the organic acid being added, the adhesive can be obtained with stirring evenly. The formula of the invention is reasonable with good temperature-resistant performance and strong cohesion. The product after cohesion has high adhesion strength.
Description
Technical field
The present invention relates to the rubber based adhesives technical field, be specifically related to a kind of tackiness agent that can be used for fluororubber binding and preparation method thereof.
Background technology
The autohension and the mutual viscosity of viton are relatively poor, for the gluing problem that connects of vulcanizable fluororubber, there is the people once to do several trials: 1. be placed on bonding position, hot-press vulcanization then with fluororubber compounded rubber, but this adhering method bond strength is low, and the product of gained destroys at bonding position easily; 2. carry out cold-adhered with acrylic tackifier, bonding position directly lumps together two interface junction by tackiness agent, this method bond strength is than higher, but, because the poor heat resistance of tackiness agent own, the temperature of life-time service generally can not surpass 80 ℃, and the viton product generally is at high temperature to use, like this, this bonding mode has also just lost use value; 3. bonding surface sticks with glue agent Kai Muluoke earlier and handles, and injects a small amount of green compound between two interfaces, carries out high temperature vulcanized then.This method has improved its bond strength to a certain extent, but Kai Muluoke can become fragile after high temperature vulcanized, splits easily during the cushion rubber distortion.Therefore, solve the gluing problem that connects of vulcanizable fluororubber, improve the snappiness of bond strength and bond site, the product that makes can use under hot environment, is insoluble for a long time problem.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of tackiness agent that can be used for fluororubber binding reasonable, that heat resistance is good, bonding force is strong of filling a prescription is provided.
Another object of the present invention is to provide the above-mentioned preparation method who can be used for the tackiness agent of fluororubber binding.
Purpose of the present invention is achieved through the following technical solutions: a kind of tackiness agent that can be used for fluororubber binding comprises the component of following mass parts:
Crude fluororubber 100
Acid-acceptor 9～12
Filler 10～30
Pigment 0～10
Vulcanization system 2.1～2.8
The described organic solvent of organic solvent is 1.8～3: 1 with the ratio of above-mentioned crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass.
The described organic acid consumption of organic acid is 1%～3% of an organic solvent quality.
Described acid-acceptor comprises Ca (OH)
2Mixture with MgO.
Described filler comprises one or more the mixture among diatomite, white carbon black, Calucium Silicate powder, barium sulfate, the carbon black N990.
Described pigment comprises iron oxide red or chrome green.
Described vulcanization system comprises the mixture of BPP and bisphenol AF.
The preferred ketone of described organic solvent or ester class organic solvent, more preferably acetone; Described organic solvent is preferably 2.2: 1 with the ratio of the total mass of described crude fluororubber, acid-acceptor, filler, pigment, vulcanization system.
Described organic acid comprises acetate, 2,3 dihydroxybutanedioic acid, hydroxy-butanedioic acid, oxalic acid etc.
A kind ofly prepare the above-mentioned method that can be used for the tackiness agent of fluororubber binding, may further comprise the steps:
(1) get each component of following mass parts:
Crude fluororubber 100
Acid-acceptor 9～12
Filler 10～30
Pigment 0～10
Vulcanization system 2.1～2.8;
(2) crude fluororubber, acid-acceptor, filler, pigment, vulcanization system are opened refining and obtained rubber unvulcanizate;
(3) add organic solvent and organic acid then, stirring is mixed promptly; Described organic solvent is 1.8～3: 1 with the ratio of above-mentioned crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass, and described organic acid consumption is 1%～3% of an organic solvent quality.
Compared with prior art, the present invention has the following advantages:
1, tackiness agent bonding force of the present invention is strong, the products with adhesive intensity height after bonding, and bond strength can reach more than the 3.5MPa.
2, because viton crosslinking reaction speed under solution state is very fast, even at normal temperatures, park gel (partial cross-linked) just took place in 2～3 hours, that is to say, vulcanize again behind the gel and be difficult to stick together with adhesive tape or rubber unvulcanizate at solvent gel just before the volatilization fully not.Added acid compounds in the tackiness agent of the present invention, postponed the carrying out of this reaction, prolonged its gel time, guaranteed that tackiness agent in the solvent evaporates process, before the hot-press vulcanization scorching does not take place, influences its sulfuration and bonding strength.
3, tackiness agent sulfuration back snappiness is good, and joint did not split when bonding back product was crooked.
4, the glue media-resistant at the bonding position of prepared product and heat resistance are the same with the body viton, can use under 250 ℃ of high temperature.
Embodiment
The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited in this.
Embodiment 1
The preparation method that the present invention can be used for the tackiness agent of fluororubber binding may further comprise the steps:
(1) get following mass parts component:
Crude fluororubber 100
Acid-acceptor 11
Filler 16
Pigment 5
Vulcanization system 2.5;
Wherein, described crude fluororubber is FPM2603, acid-acceptor consist of 3 mass parts Ca (OH)
2+ 8 mass parts MgO, filler are 15 mass parts diatomite+1 mass parts Calucium Silicate powder, and pigment is chrome green, and vulcanization system is 0.5 mass parts BPP+2 part bisphenol AF.Organic solvent is selected acetone for use, and organic acid is selected acetate for use.
(2) open refining:
Rubber thin-pass 6 times adds Ca (OH) 2, MgO then successively; Diatomite, chrome green; Calucium Silicate powder, BPP, bisphenol AF.Add material back thin-pass 10 times rubber unvulcanizate, following sheet, park 16 hours stand-by.The one step cure condition of test piece is: 170 ℃ * 10 '; The post vulcanization condition is: 230 ℃ * 16h
(3) preparation rubber cement:
Earlier rubber unvulcanizate heat refining thin-pass in mill, go out into 2mm left and right sides thin slice then, be slit into 100cm2 left and right sides fritter, drop in the mixing drum by weight 1: 2.2 with acetone then, elder generation drops into 50% of the total consumption of acetone and starts stirrer, stir and drop into residue acetone after 20 minutes again, and adding heavily is the acetate of acetone consumption 2%, continuation is stirred, and dissolves fully until sizing material promptly to get the tackiness agent that can be used for fluororubber binding of the present invention.
With the hardness (Shao Er A) after the rubber unvulcanizate sulfuration of present embodiment gained is 74, and tensile strength is 12.2Mpa, and tensile yield is 220%.
Embodiment 2
Present embodiment except that following characteristics with embodiment 1:
Get following mass parts component:
Crude fluororubber 100
Acid-acceptor 11
Filler 16
Pigment 0
Vulcanization system 2.5;
Wherein, described crude fluororubber is FPM2603, acid-acceptor consist of 3 mass parts Ca (OH)
2+ 8 mass parts MgO, filler are 1 mass parts Calucium Silicate powder+15 mass parts carbon black N990, and vulcanization system is 0.5 mass parts BPP+2 part bisphenol AF.
Embodiment 3
Present embodiment except that following characteristics with embodiment 1:
Get following mass parts component:
Crude fluororubber 100
Acid-acceptor 10
Filler 26
Pigment 2
Vulcanization system 2.1;
Wherein, described crude fluororubber is FPM2603, and acid-acceptor consists of 4 mass parts Ca (OH)
2+ 6 mass parts MgO, filler are 1 mass parts Calucium Silicate powder+25 mass parts barium sulfate, and pigment is chrome green, and vulcanization system is 0.5 mass parts BPP+1.6 part bisphenol AF.Acetone is 1.8: 1 with the ratio of described crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass, and described organic acid is selected oxalic acid for use, and consumption is 1% of an acetone quality.
Embodiment 4
Present embodiment except that following characteristics with embodiment 1:
Get following mass parts component:
Crude fluororubber 100
Acid-acceptor 12
Filler 30
Pigment 10
Vulcanization system 2.8;
Wherein, described crude fluororubber is FPM2603, and acid-acceptor consists of 4 mass parts Ca (OH)
2+ 8 mass parts MgO, filler are 3 mass parts Calucium Silicate powder+27 mass parts diatomite, and pigment is iron oxide red, and vulcanization system is 0.5 mass parts BPP+2.3 part bisphenol AF.Organic solvent is selected butanone for use, with the ratio of described crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass be 2.5: 1, described organic acid is selected hydroxy-butanedioic acid for use, consumption is 3% of a butanone quality.
Claims (9)
1. a tackiness agent that can be used for fluororubber binding is characterized in that, comprises the component of following mass parts:
Crude fluororubber 100
Acid-acceptor 9～12
Filler 10～30
Pigment 0～10
Vulcanization system 2.1～2.8
The described organic solvent of organic solvent is 1.8～3: 1 with the ratio of above-mentioned crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass;
The described organic acid consumption of organic acid is 1%～3% of an organic solvent quality.
2. a kind of sulphur according to claim 1 can be used for the tackiness agent of fluororubber binding, it is characterized in that, described acid-acceptor is Ca (OH)
2Mixture with MgO.
3. a kind of tackiness agent that can be used for fluororubber binding according to claim 1 is characterized in that described filler comprises one or more mixtures among diatomite, white carbon black, Calucium Silicate powder, barium sulfate, the carbon black N990.
4. a kind of tackiness agent that can be used for fluororubber binding according to claim 1 is characterized in that described pigment comprises iron oxide red or chrome green.
5. a kind of tackiness agent that can be used for fluororubber binding according to claim 1 is characterized in that described vulcanization system is the mixture of BPP and bisphenol AF.
6. a kind of tackiness agent that can be used for fluororubber binding according to claim 1 is characterized in that, described organic solvent comprises ketone or ester class organic solvent.
7. a kind of tackiness agent that can be used for fluororubber binding according to claim 6 is characterized in that described organic solvent-acetone; Described organic solvent is 2.2: 1 with the ratio of the total mass of described crude fluororubber, acid-acceptor, filler, pigment, vulcanization system.
8. organic acid according to claim 1 comprises acetate, 2,3 dihydroxybutanedioic acid, hydroxy-butanedioic acid or oxalic acid.
9. a kind of preparation method who can be used for the tackiness agent of fluororubber binding according to claim 1 is characterized in that, may further comprise the steps:
(1) get each component of following mass parts:
Crude fluororubber 100
Acid-acceptor 9～12
Filler 10～30
Pigment 0～10
Vulcanization system 2.1～2.8;
(2) crude fluororubber, acid-acceptor, filler, pigment, vulcanization system are opened refining and obtained rubber unvulcanizate;
(3) add organic solvent and organic acid then, stirring is mixed promptly; Described organic solvent is 1.8～3: 1 with the ratio of above-mentioned crude fluororubber, acid-acceptor, filler, pigment, vulcanization system total mass, and described organic acid consumption is 1%～3% of an organic solvent quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100315196A CN101157832A (en) | 2007-11-20 | 2007-11-20 | Adhesive capable of being used for fluororubber binding and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100315196A CN101157832A (en) | 2007-11-20 | 2007-11-20 | Adhesive capable of being used for fluororubber binding and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101157832A true CN101157832A (en) | 2008-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100315196A Pending CN101157832A (en) | 2007-11-20 | 2007-11-20 | Adhesive capable of being used for fluororubber binding and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538449B (en) * | 2009-04-29 | 2010-09-29 | 布柯玛蓄能器（天津）有限公司 | Capsule bonding adhesive of fluorine rubber energy accumulator |
| CN101962504A (en) * | 2010-10-28 | 2011-02-02 | 中昊晨光化工研究院 | Fluorine-containing anticorrosive paint |
| CN115216250A (en) * | 2022-01-06 | 2022-10-21 | 广东硕成科技股份有限公司 | High-stability coating adhesive and preparation method thereof |
-
2007
- 2007-11-20 CN CNA2007100315196A patent/CN101157832A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538449B (en) * | 2009-04-29 | 2010-09-29 | 布柯玛蓄能器（天津）有限公司 | Capsule bonding adhesive of fluorine rubber energy accumulator |
| CN101962504A (en) * | 2010-10-28 | 2011-02-02 | 中昊晨光化工研究院 | Fluorine-containing anticorrosive paint |
| CN101962504B (en) * | 2010-10-28 | 2012-10-03 | 中昊晨光化工研究院 | Fluorine-containing anticorrosive paint |
| CN115216250A (en) * | 2022-01-06 | 2022-10-21 | 广东硕成科技股份有限公司 | High-stability coating adhesive and preparation method thereof |
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Open date: 20080409 |