CN104130533A - Fluorubber gross rubber and preparation method thereof - Google Patents
Fluorubber gross rubber and preparation method thereof Download PDFInfo
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- CN104130533A CN104130533A CN201410344129.4A CN201410344129A CN104130533A CN 104130533 A CN104130533 A CN 104130533A CN 201410344129 A CN201410344129 A CN 201410344129A CN 104130533 A CN104130533 A CN 104130533A
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- fluororubber
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Abstract
The invention discloses a fluorubber gross rubber comprises high Mooney fluorine raw rubber, medium Mooney fluorine rubber raw rubber, active magnesium oxide, calcium hydroxide, diatomite, Brazil wax, a brightener, high-temperature resistant grass green, titanium dioxide, bisphenol AF and a vulcanization accelerator BPP. The fluorubber gross rubber has good fluidity in processing, is easy for processing, and has high hot tear strength.
Description
Technical field
The present invention relates to a kind of fluororubber compounded rubber and preparation method thereof, belong to rubber technology field.
Background technology
Viton is the synthetic macromolecular elastomer that contains fluorine atom on the carbon atom of main chain or side chain, and it is widely used in many fields such as space flight, military project, national defence, automobile and petrochemical complex.Viton has characteristic and the good physicalies such as good high temperature resistant, radiation hardness, oil resistant, resistance to solvent, corrosion-resistant, drug-resistant, powerful oxidation corrosion resistance agent, is the best glue kind of harsh Working environment lower seal, sebific duct and the rubber cushions etc. such as oil resistant.As an important physicals, the hot tear strength of viton plays conclusive effect for effective sealing.Improve the hot tear strength of viton, can expand viton in the range of application of sealing occasion.In prior art, the complete processing of viton is conventionally more complicated in addition, the poor fluidity in the course of processing, and the price of viton is higher, has also greatly limited its promotion and application.
Summary of the invention
The object of the invention is to overcome defect of the prior art, a kind of fluororubber compounded rubber and preparation method thereof is provided, the good fluidity of described fluororubber compounded rubber in the course of processing, be easy to processing, and the fluororubber compounded rubber making has very high hot tear strength.
The present invention is achieved by following technical scheme.
A fluororubber compounded rubber, by mixing the forming of component of following mass fraction:
High Mooney crude fluororubber 45-50 part
Middle Mooney fluororubber rubber 45-50 part
Activated magnesia 7-9 part
Calcium hydroxide 5-8 part
Diatomite 8-11 part
Brazil wax 2-5 part
Brightening agent 2-4 part
The grass green 2-3 part of high temperature
Titanium dioxide 1-2 part
Bisphenol AF 2-4 part
Vulcanization accelerator BPP 1-3 part.
Above-mentioned a kind of fluororubber compounded rubber, wherein, screening formulation is as follows, by mass parts:
50 parts of high Mooney crude fluororubber
50 parts of middle Mooney fluororubber rubbers
9 parts of activated magnesias
8 parts, calcium hydroxide
10 parts, diatomite
3 parts of brazil waxs
2 parts of brightening agents
Grass green 2 parts of high temperature
1 part of titanium dioxide
3 parts of bisphenol AFs
1.5 parts of vulcanization accelerator BPP.
The preparation method of above-mentioned a kind of fluororubber compounded rubber, preparation process is as follows: by middle Mooney fluororubber rubber, high Mooney crude fluororubber, activated magnesia, calcium hydroxide, fluorine wax, brightening agent, brazil wax, high temperature is grass green, titanium dioxide, bisphenol AF and vulcanization accelerator BPP add in Banbury mixer and are uniformly mixed, stirring velocity 50-55r/min, churning time 40-50min, and then be 100-120 ℃ in temperature range, pressure is 10-12KN, Banbury mixer rotating speed is mixing 45-60min under the condition of 50-55r/min, then be cooled to 20-30 ℃, carry out thin-pass 3-5 time again, then in mill, open refining, finally according to thickness demand, cut into slices again.
The formula material of fluororubber compounded rubber of the present invention is easy to get, and preparation technology is simple.The good fluidity of fluororubber compounded rubber in the course of processing, is easy to processing.The fluororubber compounded rubber that the method for the invention makes has not only reached the property indices of finished product viton of the prior art, and has higher hot tear strength.The raw materials cost of fluororubber compounded rubber of the present invention is lower in addition, has also saved the tooling cost of enterprise, has good economic benefit.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Middle Mooney fluororubber rubber is the crude fluororubber of 50 mooney viscosities, is purchased from Shanghai Sanaifu New Material Co., Ltd.
High Mooney crude fluororubber is the crude fluororubber of 110 mooney viscosities, is purchased from Shanghai Sanaifu New Material Co., Ltd.
Described brightening agent is brightening agent 2818, is purchased from Shanghai Sanaifu New Material Co., Ltd.
High temperature is grass green is Pigment green, is to be purchased from Tianjin to deeply convince and reach pigment Chemical Co., Ltd. 1601 Pigment greens (B), and bisphenol AF is purchased from Zigong Tianlong Chemical Co.,Ltd.; Described vulcanization accelerator BPP is purchased from Zigong Tianlong Chemical Co.,Ltd..
Embodiment mono-
By 45 parts of high Mooney crude fluororubber, 45 parts of middle Mooney fluororubber rubbers, 7 parts of activated magnesias, 5 parts, calcium hydroxide, 8 parts, diatomite, 2 parts of brazil waxs, 2 parts of brightening agents, grass green 2 parts of high temperature, 1 part of titanium dioxide, 2 parts of bisphenol AFs, 1 part of vulcanization accelerator BPP adds in Banbury mixer and is uniformly mixed, stirring velocity 50r/min, churning time 40min, and then it is 100 ℃ in temperature, pressure is 10KN, Banbury mixer rotating speed is mixing 45min under the condition of 50r/min, then be cooled to 20 ℃, carry out again thin-pass 3 times, then in mill, open refining, finally according to thickness demand, cut into slices again.
Embodiment bis-
By 50 parts of high Mooney crude fluororubber, 50 parts of middle Mooney fluororubber rubbers, 9 parts of activated magnesias, 8 parts, calcium hydroxide, 10 parts, diatomite, 3 parts of brazil waxs, 2 parts of brightening agents, grass green 2 parts of high temperature, 1 part of titanium dioxide, 3 parts of bisphenol AFs, 1.5 parts of vulcanization accelerator BPP add in Banbury mixer and are uniformly mixed, stirring velocity 50r/min, churning time 40min, and then it is 100 ℃ in temperature, pressure is 10KN, Banbury mixer rotating speed is mixing 45min under the condition of 50r/min, then be cooled to 20 ℃, carry out again thin-pass 3 times, then in mill, open refining, finally according to thickness demand, cut into slices again.
Embodiment tri-
By 50 parts of high Mooney crude fluororubber, 50 parts of middle Mooney fluororubber rubbers, 9 parts of activated magnesias, 8 parts, calcium hydroxide, 11 parts, diatomite, 5 parts of brazil waxs, 4 parts of brightening agents, grass green 3 parts of high temperature, 2 parts of titanium dioxides, 4 parts of bisphenol AFs, 3 parts of vulcanization accelerator BPP add in Banbury mixer and are uniformly mixed, stirring velocity 50r/min, churning time 40min, and then it is 100 ℃ in temperature, pressure is 10KN, Banbury mixer rotating speed is mixing 45min under the condition of 50r/min, then be cooled to 20 ℃, carry out again thin-pass 3 times, then in mill, open refining, finally according to thickness demand, cut into slices again.
Performance data:
| Test event | Embodiment mono- | Embodiment bis- | Embodiment tri- |
| Hardness (IRHD) | 81 | 89 | 80 |
| Fracture tensile strength (MPa) | 15.4 | 17.8 | 15.5 |
| Elongation at break (%) | 264 | 280 | 260 |
| Breaking tenacity (KN/m) | 16.5 | 21.2 | 17 |
| 150 ℃/24h(% of compression set) | 18.5 | 18.9 | 18.9 |
| Opposing hot water 100 ℃/168h volume change (%) | 4 | 3.5 | 4 |
| Opposing ASTM1 oil 150 ℃/72h volume change (%) | 3.1 | 2.98 | 3 |
| Opposing IRM903 oil 150 ℃/72h volume change (%) | 5 | 4.32 | 5 |
Here description of the invention and application is illustrative, not wants that therefore, the present invention is not subject to the restriction of the present embodiment by scope restriction of the present invention in the above-described embodiments, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (3)
1. a fluororubber compounded rubber, is characterized in that, by mixing the forming of component of following mass fraction:
High Mooney crude fluororubber 45-50 part
Middle Mooney fluororubber rubber 45-50 part
Activated magnesia 7-9 part
Calcium hydroxide 5-8 part
Diatomite 8-11 part
Brazil wax 2-5 part
Brightening agent 2-4 part
The grass green 2-3 part of high temperature
Titanium dioxide 1-2 part
Bisphenol AF 2-4 part
Vulcanization accelerator BPP 1-3 part.
2. a kind of fluororubber compounded rubber as claimed in claim 1, is characterized in that, screening formulation is as follows, by mass parts:
50 parts of high Mooney crude fluororubber
50 parts of middle Mooney fluororubber rubbers
9 parts of activated magnesias
8 parts, calcium hydroxide
10 parts, diatomite
3 parts of brazil waxs
2 parts of brightening agents
Grass green 2 parts of high temperature
1 part of titanium dioxide
3 parts of bisphenol AFs
1.5 parts of vulcanization accelerator BPP.
3. the preparation method of a kind of fluororubber compounded rubber as claimed in claim 1, preparation process is as follows: by middle Mooney fluororubber rubber, high Mooney crude fluororubber, activated magnesia, calcium hydroxide, fluorine wax, brightening agent, brazil wax, high temperature is grass green, titanium dioxide, bisphenol AF and vulcanization accelerator BPP add in Banbury mixer and are uniformly mixed, stirring velocity 50-55r/min, churning time 40-50min, and then be 100-120 ℃ in temperature range, pressure is 10-12KN, Banbury mixer rotating speed is mixing 45-60min under the condition of 50-55r/min, then be cooled to 20-30 ℃, carry out thin-pass 3-5 time again, then in mill, open refining, finally according to thickness demand, cut into slices again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344129.4A CN104130533A (en) | 2014-07-20 | 2014-07-20 | Fluorubber gross rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344129.4A CN104130533A (en) | 2014-07-20 | 2014-07-20 | Fluorubber gross rubber and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104130533A true CN104130533A (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410344129.4A Pending CN104130533A (en) | 2014-07-20 | 2014-07-20 | Fluorubber gross rubber and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479265A (en) * | 2014-12-31 | 2015-04-01 | 山东华夏神舟新材料有限公司 | Low-compression-deformation fluororubber premix and preparation method thereof |
| CN104672726A (en) * | 2015-03-11 | 2015-06-03 | 江苏千富之丰科技有限公司 | Secondary vulcanization-free fluoroelastomer and preparation method thereof |
| CN109722915A (en) * | 2019-01-08 | 2019-05-07 | 镇江安之盾高温纤维制品有限公司 | A kind of silicone rubber coating glass fabric preparation process |
-
2014
- 2014-07-20 CN CN201410344129.4A patent/CN104130533A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479265A (en) * | 2014-12-31 | 2015-04-01 | 山东华夏神舟新材料有限公司 | Low-compression-deformation fluororubber premix and preparation method thereof |
| CN104672726A (en) * | 2015-03-11 | 2015-06-03 | 江苏千富之丰科技有限公司 | Secondary vulcanization-free fluoroelastomer and preparation method thereof |
| CN104672726B (en) * | 2015-03-11 | 2016-11-09 | 江苏千富之丰科技有限公司 | One exempts from post-cure fluoroelastomer and preparation method thereof |
| CN109722915A (en) * | 2019-01-08 | 2019-05-07 | 镇江安之盾高温纤维制品有限公司 | A kind of silicone rubber coating glass fabric preparation process |
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Application publication date: 20141105 |