CN102731865B - Rubber composition of nitrile rubber and epoxidized natural rubber - Google Patents
Rubber composition of nitrile rubber and epoxidized natural rubber Download PDFInfo
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- CN102731865B CN102731865B CN 201210173213 CN201210173213A CN102731865B CN 102731865 B CN102731865 B CN 102731865B CN 201210173213 CN201210173213 CN 201210173213 CN 201210173213 A CN201210173213 A CN 201210173213A CN 102731865 B CN102731865 B CN 102731865B
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- natural rubber
- paracril
- carbon black
- epoxy natural
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Abstract
The invention discloses a rubber composition of nitrile rubber and epoxidized natural rubber. The rubber composition is prepared from nitrile rubber 3345, epoxidized natural rubber, antioxidant RD, antioxidant MB, stearic acid, sulfur powder, microcrystalline wax, zinc oxide, processing aid WB212, white carbon black, carbon black N330, triethyl citrate, promoter TMTD, promoter CZ, promoter DM, nanometer barite, light calcium carbonate, chalk, high styrene resin, benzoic acid, etc. The rubber composition provided in the invention has low permanent compression deformation, good elasticity and high hardness; the composition is used for fabricating rubber products like sealing rings, having the advantages of conservation of cost and excellent performance.
Description
Technical field
The present invention relates to field of rubber materials, is exactly the rubber combination of a kind of paracril and epoxy natural rubber.
Background technology
Paracril claims again divinyl one acrylic-nitrile rubber, is called for short NBR, molecular-weight average 700,000 left and right.Canescence is to light yellow bulk or powdery solid, relative density 0.95～1.0.Mono-52 ℃ of the paracril second-order transition temperature Tg=that acrylonitrile content is 26%, mono-47 ℃ of embrittlement temperature Tb=, and mono-22 ℃ of paracril second-order transition temperature Tg=that acrylonitrile content is 40%.Solubility parameter δ=8.9～9.9, be dissolved in vinyl acetic monomer, N-BUTYL ACETATE, chlorobenzene, methylethylketone etc.Paracril has good oil-proofness, and its oil-proofness is only second to thiorubber and viton, and the wear resistance had and resistance to air loss.The shortcoming of nitrile rubber is not anti-ozone and aromatic series, halohydrocarbon, ketone and esters solvent, is unfit to do insulating material.Thermotolerance is better than epoxy natural rubber, chloroprene rubber, can be 120 ℃ of long term operations.Resistance to air loss is only second to isoprene-isobutylene rubber.The performance of paracril is affected by acrylonitrile content, along with acrylonitrile content increases tensile strength, thermotolerance, oil-proofness, resistance to air loss, hardness, improve, but elasticity, winter hardiness reduces.Paracril ozone resistance and electrical insulation capability are not good.And the rubber items such as existing sealing-ring require to have higher hardness and lower compression set.
Natural rubber is a kind of natural high moleculer eompound that polyisoprene is main component of take, and molecular formula is (C
5h
8)
n, in its composition 91%～94%, rubber hydrocarbon (polyisoprene), all the other are the nonrubber materials such as protein, lipid acid, ash content, carbohydrate.Natural rubber is most widely used conventional rubber.
Summary of the invention
Purpose of the present invention provides a kind of paracril of good springiness and the rubber combination of epoxy natural rubber.
Above-mentioned purpose realizes by following scheme:
The rubber combination of a kind of paracril and epoxy natural rubber is characterized in that:
It is to be made by the raw material of following weight parts:
Paracril 3345 70-90, epoxy natural rubber 20-30, anti-aging agent RD 1.5-2, antioxidant MB 0.8-1, stearic acid 0.8-1, SULPHUR POWDER 0.5-0.8, Microcrystalline Wax 1-1.2, zinc oxide 5-6, processing aid WB212 1-1.2, white carbon black 60-65, carbon black N330 30-35, triethyl citrate 35-40, Vulcanization accelerator TMTD 1-1.5, accelerant CZ 1-1.5, altax 1.5-2, nano barite 2-4, light calcium carbonate 5-6, chalk 2-3, high styrene resin 2-3, phenylformic acid 2-4.
The rubber combination of described a kind of paracril and epoxy natural rubber is characterized in that: it adopts the calendering process preparation and obtains.
The rubber combination of described a kind of paracril and epoxy natural rubber is characterized in that: preparation technology is:
At first by paracril 3345, epoxy natural rubber, anti-aging agent RD, antioxidant MB, stearic acid, SULPHUR POWDER, Microcrystalline Wax, zinc oxide, processing aid WB212, light calcium carbonate, phenylformic acid, chalk, high styrene resin put into Banbury mixer under 70-75 ℃ by weight mixing fully after, again by gained sizing material and white carbon black, carbon black N330, nano barite, triethyl citrate put into mill under 80-85 ℃ by weight mixing fully after, add again Vulcanization accelerator TMTD, accelerant CZ, altax in 90-95 ℃ by weight mixing fully after, reprocess moulding and get final product.
Beneficial effect of the present invention is:
Compression set of the present invention is low, good springiness, and hardness is high, for making the rubber items such as sealing-ring, cost-saving, superior performance.
Embodiment
The rubber combination of paracril and epoxy natural rubber, it is to be made by the raw material of following weight parts:
Paracril 3,345 90, epoxy natural rubber 20, anti-aging agent RD 1.5, antioxidant MB 1, stearic acid 0.8, SULPHUR POWDER 0.5, Microcrystalline Wax 1, zinc oxide 5, processing aid WB212 1, white carbon black 60, carbon black N330 30, triethyl citrate 40, Vulcanization accelerator TMTD 1.5, accelerant CZ 1.5, altax 2, nano barite 2, light calcium carbonate 5, chalk 2, high styrene resin 2, phenylformic acid 2.
Preparation technology is:
At first by paracril 3345, epoxy natural rubber, anti-aging agent RD, antioxidant MB, stearic acid, SULPHUR POWDER, Microcrystalline Wax, zinc oxide, processing aid WB212, light calcium carbonate, phenylformic acid, chalk, high styrene resin put into Banbury mixer under 75 ℃ by weight mixing fully after, again by gained sizing material and white carbon black, carbon black N330, nano barite, triethyl citrate put into mill under 85 ℃ by weight mixing fully after, add again Vulcanization accelerator TMTD, accelerant CZ, altax in 95 ℃ by weight mixing fully after, reprocess moulding and get final product.
Your the hardness A mean value that continues of the present embodiment is 64, and hardness is high, tensile yield >=270%, good springiness.Compression set is low, mean value is 7.39%.
Claims (3)
1. the rubber combination of a paracril and epoxy natural rubber is characterized in that:
It is to be made by the raw material of following weight parts:
Paracril 3345 70-90, epoxy natural rubber 20-30, anti-aging agent RD 1.5-2, antioxidant MB 0.8-1, stearic acid 0.8-1, SULPHUR POWDER 0.5-0.8, Microcrystalline Wax 1-1.2, zinc oxide 5-6, processing aid WB212 1-1.2, white carbon black 60-65, carbon black N330 30-35, triethyl citrate 35-40, Vulcanization accelerator TMTD 1-1.5, accelerant CZ 1-1.5, altax 1.5-2, nano barite 2-4, light calcium carbonate 5-6, chalk 2-3, high styrene resin 2-3, phenylformic acid 2-4.
2. the rubber combination of a kind of paracril according to claim 1 and epoxy natural rubber is characterized in that: it adopts the calendering process preparation and obtains.
3. the rubber combination of a kind of paracril according to claim 1 and epoxy natural rubber, it is characterized in that: preparation technology is:
At first by paracril 3345, epoxy natural rubber, anti-aging agent RD, antioxidant MB, stearic acid, SULPHUR POWDER, Microcrystalline Wax, zinc oxide, processing aid WB212, light calcium carbonate, phenylformic acid, chalk, high styrene resin put into Banbury mixer under 70-75 ℃ by weight mixing fully after, again by gained sizing material and white carbon black, carbon black N330, nano barite, triethyl citrate put into mill under 80-85 ℃ by weight mixing fully after, add again Vulcanization accelerator TMTD, accelerant CZ, altax in 90-95 ℃ by weight mixing fully after, reprocess moulding and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210173213 CN102731865B (en) | 2012-05-30 | 2012-05-30 | Rubber composition of nitrile rubber and epoxidized natural rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210173213 CN102731865B (en) | 2012-05-30 | 2012-05-30 | Rubber composition of nitrile rubber and epoxidized natural rubber |
Publications (2)
| Publication Number | Publication Date |
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| CN102731865A CN102731865A (en) | 2012-10-17 |
| CN102731865B true CN102731865B (en) | 2013-12-18 |
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| CN 201210173213 Expired - Fee Related CN102731865B (en) | 2012-05-30 | 2012-05-30 | Rubber composition of nitrile rubber and epoxidized natural rubber |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724698A (en) * | 2013-12-13 | 2014-04-16 | 芜湖金鹰机械科技开发有限公司 | O-ring produced through reclaimed Buna-N rubber |
| CN103739892A (en) * | 2013-12-13 | 2014-04-23 | 芜湖金鹰机械科技开发有限公司 | Chemical-corrosion-resistant O-shaped ring |
| CN103772757A (en) * | 2013-12-13 | 2014-05-07 | 芜湖金鹰机械科技开发有限公司 | High-hardness O-shaped ring compound rubber material |
| CN104774355B (en) * | 2014-01-13 | 2017-05-24 | 中国石油化工股份有限公司 | Water lubricated rubber composition and water lubricated rubber bearing produced from water lubricated rubber composition |
| CN104610598A (en) * | 2015-01-28 | 2015-05-13 | 安徽弘毅电缆集团有限公司 | Modified autumn-hemp fiber acrylonitrile-butadiene rubber compound cable jacket material |
| CN104592574A (en) * | 2015-01-30 | 2015-05-06 | 柳州市颖航汽配有限公司 | Rubber material for sealing automobile door and preparation method of rubber material |
| CN105330899B (en) * | 2015-12-14 | 2018-08-07 | 中国热带农业科学院农产品加工研究所 | A kind of epoxy natural rubber coating modification white carbon and preparation method thereof and rubber material |
| CN105440360A (en) * | 2015-12-16 | 2016-03-30 | 宁国市开源橡塑汽车零部件有限公司 | High/low temperature resistant oil-insulation sealing member material and preparation method thereof |
| CN105670054A (en) * | 2016-03-30 | 2016-06-15 | 刘焕章 | High-suction rubber sucker and method for manufacturing same |
| CN107841017A (en) * | 2017-11-04 | 2018-03-27 | 李景春 | A kind of anti-aging composite of bulwark |
| CN108047521A (en) * | 2017-11-04 | 2018-05-18 | 李景春 | A kind of preparation method of compounded rubber pad |
| CN109824948B (en) * | 2019-01-25 | 2021-08-17 | 中国热带农业科学院农产品加工研究所 | A kind of rubber stamp compound that can be used for printing on capacitors and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111554A (en) * | 2005-01-24 | 2008-01-23 | 白石工业株式会社 | Rubber composition containing modified calcium carbonate |
| CN101627083A (en) * | 2007-03-07 | 2010-01-13 | 横滨橡胶株式会社 | Rubber composition and vulcanized rubber product using the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111554A (en) * | 2005-01-24 | 2008-01-23 | 白石工业株式会社 | Rubber composition containing modified calcium carbonate |
| CN101627083A (en) * | 2007-03-07 | 2010-01-13 | 横滨橡胶株式会社 | Rubber composition and vulcanized rubber product using the same |
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| CN102731865A (en) | 2012-10-17 |
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