CN103739897B - A kind of High-proportion rubber and preparation method thereof - Google Patents
A kind of High-proportion rubber and preparation method thereof Download PDFInfo
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- CN103739897B CN103739897B CN201410013133.2A CN201410013133A CN103739897B CN 103739897 B CN103739897 B CN 103739897B CN 201410013133 A CN201410013133 A CN 201410013133A CN 103739897 B CN103739897 B CN 103739897B
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Abstract
The invention discloses a kind of High-proportion rubber, its component comprises: No. 1, natural rubber, magnesium oxide or zinc oxide, scorch retarder N-cyclohexylthiophthalimide, anti-aging agent N-Phenyl beta naphthylamine or N-sec.-propyl-N '-diphenyl-para-phenylene diamine, N330 carbon powder etc.; And the production method of this high specific gravity natural rubber, step is as follows: S1: adopt No. 1, natural rubber, softening agent transformer oil No. 46 Zinic stearass, environmental protection iron banburying in Banbury mixer; S2: product is carried out banburying again, adds magnesium oxide or zinc oxide, scorch retarder, anti-aging agent etc., again carries out banburying; S3: the product of S2 is carried out again banburying after 5 minutes, after adding soluble sulfur vulcanizing agent or promotor, 3-6 part carries out banburying 10 minutes again; S4: by the product compression molding of S3.Rubber of the present invention can reach the damping and silencing service requirements of miniature electronic electric equipment products, meets the development trend of modern electronic product.
Description
Technical field
The present invention relates to field of rubber preparation, particularly relate to a kind of High-proportion rubber and preparation method thereof.
Background technology
Along with the develop rapidly of electronic apparatus industry, natural rubber is widely used in the damping and silencing field of electric equipment products because it has wear-resisting, soft, that damping and silencing is respond well, use environmental protection, low production cost etc. is excellent Practical Performance.But, natural rubber also also exists defect in actual application, proportion due to its rubber unvulcanizate is generally 4.5 grams less than every cubic millimeter, proportion is lower, reach good damping and silencing function and then must increase its volume, so when electric equipment products is applied, the practical function that can only electronic product just can be made to reach super-silent by the product structure that design volume is larger, the trend developed towards miniaturization with hyundai electronics electric equipment products structure thus contradicts, therefore, develop a kind of high specific gravity natural rubber and preparation method thereof and become a kind of effective technology method solved the problem.
High-density rubber common at present, one adopts red lead powder weightening finish, and sizing material proportion is 4.5 grams every cubic millimeter; Another kind adopts terra alba weightening finish, sizing material proportion is 4.0 grams every cubic millimeter, although these two kinds of more common natural rubbers of high-density rubber proportion are higher, but still can not meet well in actual applications and make the double requirements that electric equipment products volume is little, damping and silencing is effective, and these two kinds of high-density rubber very easily pollute production environment in process of production, and raw materials for production easily threaten to the healthy of producers.
Summary of the invention
Object of the present invention mainly provides a kind of proportion to be High-proportion rubber of 5.2-5.5 gram every cubic millimeter and preparation method thereof, cannot meet to solve at present natural rubber on the market and common High-proportion rubber the demand that electric equipment products volume is little, damping and silencing performance requriements is high.
To achieve these goals, the technical solution used in the present invention is: a kind of High-proportion rubber, its formulation weight number is: natural rubber No. 1 100 parts, magnesium oxide or zinc oxide 3-6 part, N-cyclohexylthiophthalimide 0.3-0.6 part, N-Phenyl beta naphthylamine or N-sec.-propyl-N '-diphenyl-para-phenylene diamine 2-6 part, N330 carbon powder 50-70 part, environmental protection iron powder 620-740 part, transformer oil No. 46 50-75 parts, stearic acid 1-3 part, paraffin 1-3 part, Zinic stearas 1-3 part, vulcanization accelerator 3-6 part.
Preferred as one, the vulcanization accelerator in the present invention is 2-thiol benzothiazole.
Preferred as one, the parts by weight of the environmental protection iron powder in the present invention are 680 parts, and No. 46, transformer oil is 57 parts, and Zinic stearas is 2 parts.
And a kind of production method of High-proportion rubber, comprise the following steps:
S1: adopt No. 1,100 parts of natural rubbers, No. 46,50-75 part transformer oil, 1-3 part Zinic stearas, 620-740 part environmental protection iron powder banburying 30 minutes in Banbury mixer, carry out shutdown discharging after mixing end, park 4 hours;
S2: the product of S1 is carried out banburying again, it is made to be uniformly distributed in No. 1, natural rubber, when material temperature rise to 70 is spent in Banbury mixer, then add magnesium oxide or zinc oxide 3-6 part, scorch retarder N-cyclohexylthiophthalimide 0.3-0.6 part, N-Phenyl beta naphthylamine or N-sec.-propyl-N '-diphenyl-para-phenylene diamine 2-6 part, N330 carbon powder 50-70 part, stearic acid 1-3 part, paraffin 1-3 part, again carry out banburying and shut down discharging after 15 minutes, adopt naturally cooling 30 minutes;
S3: the product of S2 is carried out again banburying after 5 minutes, carry out banburying 10 minutes again after adding vulcanization accelerator 3-6 part;
S4: the product of S3 is adopted curing temperature 160 degree, and curing time 420 seconds, the condition of sulfide stress 20MPa carries out compression molding.
Preferred as one, vulcanization accelerator described in the inventive method step S3 is 2-thiol benzothiazole.
Preferred as one, the parts by weight of environmental protection iron powder described in the inventive method step S1 are 680 parts, and No. 46, transformer oil is 57 parts, and Zinic stearas is 2 parts.
A kind of High-proportion rubber of the present invention and preparation method thereof, pass through calendering process, make softening agent, Zinic stearass etc. fully soak the surface of environmental protection iron powder and activate, and then make it be uniformly distributed in natural rubber, pass through sulfuration process again, make environmental protection iron powder bridge joint on natural rubber, define the high specific gravity natural rubber structural part that proportion is 5.2-5.5 gram every cubic millimeter, the damping and silencing service requirements of miniature electronic electric equipment products can be reached, meet the development trend of modern electronic product, for electric equipment products is marched toward microminiaturization, damping and silencing high efficiency provides another effective and feasible solution.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1:
A kind of High-proportion rubber, its formulation weight number is: natural rubber No. 1 100 parts, magnesium oxide or 3 parts, zinc oxide, scorch retarder N-cyclohexylthiophthalimide 0.3 part, anti-aging agent N-Phenyl beta naphthylamine 2 parts, N330 carbon powder 50 parts, environmental protection iron powder 620 parts, No. 46 50 parts, softening agent transformer oil, stearic acid 1 part, 1 part, paraffin, Zinic stearas 1 part, soluble sulfur vulcanizing agent 2-thiol benzothiazole 3 parts.
This kind of High-proportion rubber adopts following steps to make:
S1: adopt 100 parts of natural rubbers No. 1,50 parts softening agent transformer oil No. 46,1 part Zinic stearas, 620 parts of environmental protection iron powders banburying 30 minutes in Banbury mixer, carry out shutdown discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out banburying again; when in Banbury mixer, material temperature rise to 70 is spent; add magnesium oxide or 3 parts, zinc oxide again; scorch retarder N-cyclohexylthiophthalimide 0.3 part, anti-aging agent N-Phenyl beta naphthylamine 2 parts, N330 carbon powder 50 parts; stearic acid 1 part; 1 part, paraffin, again carries out banburying and shuts down discharging after 15 minutes, adopts naturally cooling 30 minutes.
S3: the product of S2 is carried out again banburying after 5 minutes, adds soluble sulfur vulcanizing agent 2-thiol benzothiazole 3 parts and carries out banburying 10 minutes again.
S4: the product of S3 is adopted curing temperature 160 degree, and curing time 420 seconds, the condition of sulfide stress 20MPa carries out compression molding, makes the high specific gravity natural rubber that proportion of the present invention is 5.2-5.5 gram every cubic millimeter thus.
Claims (6)
1. a High-proportion rubber, its component comprises: natural rubber No. 1 100 parts, magnesium oxide or zinc oxide 3-6 part, N-cyclohexylthiophthalimide 0.3-0.6 part, N-Phenyl beta naphthylamine or N-sec.-propyl-N '-diphenyl-para-phenylene diamine 2-6 part, N330 carbon powder 50-70 part, environmental protection iron powder 620-740 part, transformer oil No. 46 50-75 parts, stearic acid 1-3 part, paraffin 1-3 part, Zinic stearas 1-3 part, vulcanization accelerator 3-6 part.
2. High-proportion rubber according to claim 1, is characterized in that, described vulcanization accelerator is 2-thiol benzothiazole.
3. High-proportion rubber according to claim 1, is characterized in that, the parts by weight of described environmental protection iron powder are 680 parts, and No. 46, transformer oil is 57 parts, and Zinic stearas is 2 parts.
4. a production method for High-proportion rubber, comprises the following steps:
S1: adopt No. 1,100 parts of natural rubbers, No. 46,50-75 part transformer oil, 1-3 part Zinic stearas, 620-740 part environmental protection iron powder banburying 30 minutes in Banbury mixer, carry out shutdown discharging after mixing end, park 4 hours;
S2: the product of S1 is carried out banburying again, when in Banbury mixer, material temperature rise to 70 is spent, add magnesium oxide or zinc oxide 3-6 part again, N-cyclohexylthiophthalimide 0.3-0.6 part, N-Phenyl beta naphthylamine or N-sec.-propyl-N '-diphenyl-para-phenylene diamine 2-6 part, N330 carbon powder 50-70 part, stearic acid 1-3 part, paraffin 1-3 part, again carries out banburying and shuts down discharging after 15 minutes, adopts naturally cooling 30 minutes;
S3: the product of S2 is carried out again banburying after 5 minutes, carry out banburying 10 minutes again after adding vulcanization accelerator 3-6 part;
S4: the product of S3 is adopted curing temperature 160 degree, and curing time 420 seconds, the condition of sulfide stress 20MPa carries out compression molding.
5. the production method of High-proportion rubber according to claim 4, is characterized in that, vulcanization accelerator described in step S3 is 2-thiol benzothiazole.
6. the production method of High-proportion rubber according to claim 4, is characterized in that, the parts by weight of the iron powder of environmental protection described in step S1 are 680 parts, and No. 46, transformer oil is 57 parts, and Zinic stearas is 2 parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410013133.2A CN103739897B (en) | 2014-01-13 | 2014-01-13 | A kind of High-proportion rubber and preparation method thereof |
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| CN201410013133.2A CN103739897B (en) | 2014-01-13 | 2014-01-13 | A kind of High-proportion rubber and preparation method thereof |
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| CN103739897A CN103739897A (en) | 2014-04-23 |
| CN103739897B true CN103739897B (en) | 2016-03-16 |
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| CN105733043A (en) * | 2016-05-08 | 2016-07-06 | 丰泽工程橡胶科技开发股份有限公司 | Rubber for electromagnetic heating vulcanization and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793211A (en) * | 2005-12-26 | 2006-06-28 | 丹阳市华东工程塑料有限公司 | Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation process thereof |
| CN101768392A (en) * | 2008-12-30 | 2010-07-07 | 张明亮 | Polar modified polymer material |
| CN101906221A (en) * | 2009-06-05 | 2010-12-08 | 上海贵港橡胶制品有限公司 | Super-thick soft rubber and preparation method thereof |
| CN102924833A (en) * | 2012-11-26 | 2013-02-13 | 山东忠诚橡胶有限公司 | Vibration-attenuation damping rubber product |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0220529A (en) * | 1988-07-07 | 1990-01-24 | Tsuchiya Rubber Kk | Sound-insulating rubber sheet |
| CN1528814A (en) * | 2003-09-30 | 2004-09-15 | 朱家乐 | Soft metal, and preparing method and use thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793211A (en) * | 2005-12-26 | 2006-06-28 | 丹阳市华东工程塑料有限公司 | Noice insulation dumping noise reducing sheet material with high modulus material for car and preparation process thereof |
| CN101768392A (en) * | 2008-12-30 | 2010-07-07 | 张明亮 | Polar modified polymer material |
| CN101906221A (en) * | 2009-06-05 | 2010-12-08 | 上海贵港橡胶制品有限公司 | Super-thick soft rubber and preparation method thereof |
| CN102924833A (en) * | 2012-11-26 | 2013-02-13 | 山东忠诚橡胶有限公司 | Vibration-attenuation damping rubber product |
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