CN109796641A - It is a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber - Google Patents
It is a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber Download PDFInfo
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- CN109796641A CN109796641A CN201711137315.0A CN201711137315A CN109796641A CN 109796641 A CN109796641 A CN 109796641A CN 201711137315 A CN201711137315 A CN 201711137315A CN 109796641 A CN109796641 A CN 109796641A
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Abstract
The present invention provides a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber.Butadiene-styrene rubber is a kind of amorphous state non-polar rubber, the two be thermodynamically it is incompatible, microcosmic is in phase-separated state, is difficult to generate between interface when vulcanization and is cross-linked with each other, and causes the vulcanizate comprehensive performance of blended rubber poor.To improve such case, have studied a kind of calendering process of new type rubber: nitrile rubber and butadiene-styrene rubber are respectively cooperating with corresponding additive, and respective masterbatch is made in advance, is mixed again after parking maturation for a period of time, prepares blended rubber.By this method, make blended rubber in vulcanization, generate and be cross-linked with each other between nitrile rubber and butadiene-styrene rubber two-phase interface, improve the compatibility of blend compounds, improve the comprehensive performance of its vulcanizate.
Description
Technical field
The present invention relates to a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber.
Background technique
Nitrile rubber is a kind of highly polar specific rubber, and oil resistivity is good, and wearability is higher, and heat resistance is preferable, but resistance to low
Warm nature is poor, poor processability, adhesive property is poor, price is high.Butadiene-styrene rubber is a kind of amorphous state non-polar rubber, lower temperature resistance
Energy is good, processing performance is good, adhesive property is good, cheap.
Nitrile rubber, butadiene-styrene rubber purpose be: by and with part butadiene-styrene rubber, guaranteeing certain oil resistivity
On the basis of, improve its cold resistance, processability.Since nitrile rubber is a kind of highly polar rubber, and butadiene-styrene rubber is that a kind of nothing is fixed
Form non-polar rubber, the two be thermodynamically it is incompatible, microcosmic is in phase-separated state, is difficult to generate between interface when vulcanization
It is cross-linked with each other, causes the vulcanizate comprehensive performance of blended rubber poor.
The prior art is to be uniformly mixed two kinds of raw rubbers in rubber mixing machine, and compounding agent is then added and is kneaded, finally obtained
Blend rubber is not generated and is cross-linked with each other, and microcosmic is phase-separated state, and comprehensive performance is poor, limits their answering in product
With.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, provide it is a kind of by nitrile rubber and butadiene-styrene rubber simultaneously
With the new mixing technique for preparing blended rubber.
The technical solution adopted by the present invention is as follows:
The nitrile rubber trade mark is N41；The butadiene-styrene rubber trade mark is 1500E.
The vulcanizing agent is cumyl peroxide and sulphur.
The promotor is CZ.
The carbon black is N330.
The anti-aging agent is 4020.
The processing technology of the nitrile rubber, butadiene-styrene rubber blended rubber, implementation steps are as follows:
(1) ingredient: ingredient is carried out by the composition of raw materials；
(2) preparation of nitrile rubber masterbatch: by nitrile rubber it is thin it is logical plasticate 4~6 times, it is mixed that corresponding additive is added after packet roller
Refining, then slice, parks 12~16h；
(3) preparation of butadiene-styrene rubber masterbatch: by butadiene-styrene rubber it is thin it is logical plasticate 4~6 times, it is mixed that corresponding additive is added after packet roller
Refining, then slice, parks 12~16h；
(4) preparation of nitrile rubber, butadiene-styrene rubber blended rubber: nitrile rubber masterbatch, butadiene-styrene rubber masterbatch are total to
It mixes, thin logical mixing 5~8 times, then slice.
The mechanism of action: by this technique, so that compounding agent is uniformly dispersed in masterbatch, reduce due to two kinds of sizing materials
Polarity and viscosity differences and caused by compounding agent migration it is difficult；Vulcanizing agent a part is present in respective rubber phase, a part
Attached collection is on the phase interface that the two intersects, so that Blend rubber generation is cross-linked with each other.
The invention has the advantages that blended rubber realization is cross-linked with each other, compatibility is improved, and obtained blended rubber is comprehensive
It can be excellent.
Specific embodiment
Each component is in parts by weight in the composition of raw materials of nitrile rubber, butadiene-styrene rubber blended rubber of the invention are as follows:
The processing technology of nitrile rubber, butadiene-styrene rubber blended rubber, implementation steps are as follows:
(1) ingredient: ingredient is carried out by the composition of raw materials；
(2) preparation of nitrile rubber masterbatch: 50 parts of nitrile rubber (N41), it is thin it is logical plasticate 5 times, sequentially added after packet roller
5 parts of coumarone, 25 parts of carbon black (N330), 2 parts of cumyl peroxide, slice after being sufficiently kneaded uniformly, park 14h；
(3) preparation of butadiene-styrene rubber masterbatch: 50 parts of butadiene-styrene rubber (1500E), it is thin it is logical plasticate 5 times, after packet roller successively plus
Enter 0.5 part of promotor (CZ), 4 parts of zinc oxide, 2 parts of stearic acid, (4020) 1 parts of anti-aging agent, 25 parts of carbon black (N330), 1 part of sulphur,
Slice after being sufficiently kneaded uniformly, parks 14h；
(4) preparation of nitrile rubber, butadiene-styrene rubber blended rubber: nitrile rubber masterbatch, butadiene-styrene rubber masterbatch are total to
It mixes, thin logical mixing 7 times, then slice.
Rubber vulcanization condition: 160 DEG C × 10MPa × (Tc90+1) min
Mechanical property of vulcanized rubber: tensile strength: 22.5MPa
Elongation at break: 590%
Hardness (shore A): 68
Brittleness temperature: -65 DEG C.
Comparative example
Raw material, formula are identical with embodiment, and using traditional Blend rubber preparation process, implementation steps are as follows:
(1) ingredient: ingredient is carried out by the composition of raw materials；
(2) will the plasticate respectively nitrile rubber finished, butadiene-styrene rubber is sufficiently mixed uniformly, by charging sequence in rubber mixing machine
Various compounding agents are successively mixed into, thin logical mixing 7 times, then slice, parks 14h.
Rubber vulcanization condition: 160 DEG C × 10MPa × (Tc90+1) min
Mechanical property of vulcanized rubber: tensile strength: 18.2MPa
Elongation at break: 450%
Hardness (shore A): 67
Brittleness temperature: -60 DEG C.
It can be seen that Blend rubber mixing method provided by the invention from the results of property of embodiment and comparative example to be substantially better than
Traditional Blend rubber preparation process.This auxiliary agent is equipped with the dispersing uniformity problem that can effectively solve the problem that compounding agent with mixing method,
And nitrile rubber and butadiene-styrene rubber can be made to form co-crosslinking between interface, improve compatibility, to improve the synthesis of its vulcanizate
Performance.The Blend rubber according to said method prepared improves cold resistance under the premise of keeping oil resistivity, improves processing performance, realizes not
With the purpose of learning from other's strong points to offset one's weaknesses during material and use.
Claims (7)
1. a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber, it is characterised in that: the butyronitrile
Rubber, butadiene-styrene rubber blended rubber composition of raw materials in each component in parts by weight are as follows:
Specifically: nitrile rubber and butadiene-styrene rubber are kneaded with auxiliary agent respectively, maturation is parked and forms nitrile rubber masterbatch and fourth
Then slice after being kneaded is blended in nitrile rubber masterbatch, butadiene-styrene rubber masterbatch by benzene rubber masterbatch.
2. mixing method according to claim 1, it is characterised in that: the nitrile rubber trade mark is N41, butadiene-styrene rubber board
Number be 1500E, the two and be 1:1 with ratio.
3. mixing method according to claim 1, it is characterised in that: the vulcanizing agent is cumyl peroxide and sulphur
Sulphur, mass ratio 2:1.
4. mixing method according to claim 1, it is characterised in that: the promotor is CZ.
5. mixing method according to claim 1, it is characterised in that: the carbon black is N330.
6. mixing method according to claim 1, it is characterised in that: the anti-aging agent is 4020.
7. a kind of mixing method as described in claim 1~6 any bar, it is characterised in that: implementation steps are as follows:
(1) ingredient: ingredient is carried out by the composition of raw materials；
(2) preparation of nitrile rubber masterbatch: 50 parts of nitrile rubber (N41), it is thin it is logical plasticate 4~6 times, sequentially add Gu after packet roller
Horse is 3~8 parts grand, 20~30 parts of carbon black (N330), 1~2 part of cumyl peroxide, and slice after being sufficiently kneaded uniformly parks 12
~16h；
(3) preparation of butadiene-styrene rubber masterbatch: 50 parts of butadiene-styrene rubber (1500E), it is thin it is logical plasticate 4~6 times, sequentially added after packet roller
0.5~1 part of promotor (CZ), 3~5 parts of zinc oxide, 1~3 part of stearic acid, (4020) 1~2 parts of anti-aging agent, carbon black (N330) 20
~30 parts, 0.5~1 part of sulphur, slice after being sufficiently kneaded uniformly, park 12~16h；
(4) preparation of nitrile rubber, butadiene-styrene rubber blended rubber: nitrile rubber masterbatch, butadiene-styrene rubber masterbatch are blended, thin
Lead to mixing 5~8 times, then slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137315.0A CN109796641A (en) | 2017-11-16 | 2017-11-16 | It is a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137315.0A CN109796641A (en) | 2017-11-16 | 2017-11-16 | It is a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber |
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| Publication Number | Publication Date |
|---|---|
| CN109796641A true CN109796641A (en) | 2019-05-24 |
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| CN201711137315.0A Pending CN109796641A (en) | 2017-11-16 | 2017-11-16 | It is a kind of by nitrile rubber and butadiene-styrene rubber and with the mixing method for preparing blended rubber |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005089696A (en) * | 2003-09-19 | 2005-04-07 | Sumitomo Rubber Ind Ltd | Production process of rubber composition |
| CN1896123A (en) * | 2005-07-12 | 2007-01-17 | 北京化工大学 | Improvement of rubber compression elasticity at low-temperature |
| CN103804734A (en) * | 2014-02-25 | 2014-05-21 | 上海平泰橡胶制品有限公司 | Combined rubber sealing ring for drinking water pipeline joint and manufacturing method thereof |
| CN104356407A (en) * | 2014-11-03 | 2015-02-18 | 怡维怡橡胶研究院有限公司 | Method for preventing packing in rubber blend from migration |
-
2017
- 2017-11-16 CN CN201711137315.0A patent/CN109796641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005089696A (en) * | 2003-09-19 | 2005-04-07 | Sumitomo Rubber Ind Ltd | Production process of rubber composition |
| CN1896123A (en) * | 2005-07-12 | 2007-01-17 | 北京化工大学 | Improvement of rubber compression elasticity at low-temperature |
| CN103804734A (en) * | 2014-02-25 | 2014-05-21 | 上海平泰橡胶制品有限公司 | Combined rubber sealing ring for drinking water pipeline joint and manufacturing method thereof |
| CN104356407A (en) * | 2014-11-03 | 2015-02-18 | 怡维怡橡胶研究院有限公司 | Method for preventing packing in rubber blend from migration |
Non-Patent Citations (1)
| Title |
|---|
| 郑州电缆厂 编: "《橡胶配合与加工》", 30 April 1983, 机械工业出版社 * |
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Application publication date: 20190524 |