CN103739897A - High-proportion rubber and preparation method thereof - Google Patents
High-proportion rubber and preparation method thereof Download PDFInfo
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- CN103739897A CN103739897A CN201410013133.2A CN201410013133A CN103739897A CN 103739897 A CN103739897 A CN 103739897A CN 201410013133 A CN201410013133 A CN 201410013133A CN 103739897 A CN103739897 A CN 103739897A
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Abstract
The invention discloses high-proportion rubber which comprises the following components: natural rubber #1, magnesium oxide or zinc oxide, scorch retarder N-cyclohexyl sulfo-o-phenyl dicarboximide, anti-aging agent N-phenyl-beta-naphthylamine or N-isopropyl-N'-phenyl p-phenylenediamine, N330 carbon black powder and the like. The invention also discloses a production method of the high-proportion natural rubber. The production method comprises the following steps: 1, mixing the natural rubber #1, plasticizer transformer oil #46 zinc stearate and environment-friendly iron in a sealed manner in an internal mixer; 2, further mixing the product, then adding magnesium oxide or zinc oxide, scorch retarder, anti-aging agent and the like and mixing again; 3, further mixing the product obtained in the step 2 for 5 minutes; then adding 3-6 parts of soluble sulfur vulcanizing agent or accelerant and mixing for 10 minutes; 4, performing compression molding on the product obtained in the step 3. The rubber disclosed by the invention can meet the application requirements of micro electronic products on damping and silencing and meets the development tendency of modern electronic products.
Description
Technical field
The present invention relates to rubber preparation field, relate in particular to a kind of high specific gravity rubber and preparation method thereof.
Background technology
Be accompanied by the develop rapidly of electronic apparatus industry, natural rubber because of its have wear-resisting, soft, damping and silencing is respond well, use the good Practical Performances such as environmental protection, low production cost to be widely used in the damping and silencing field of electric equipment products.But, natural rubber also exists defect in actual application, because the proportion of its rubber unvulcanizate is generally 4.5 grams below every cubic millimeter, proportion is lower, reach good damping and silencing function and must increase its volume, so when electric equipment products is applied, can only just can make electronic product reach super-silent practical function by the larger product structure of design volume, contradict towards the trend of miniaturization development with hyundai electronics electric equipment products structure thus, therefore, develop a kind of high specific gravity natural rubber and preparation method thereof and become a kind of effective technology method addressing the above problem.
Common high-density rubber at present, one is to adopt red lead powder weightening finish, sizing material proportion is 4.5 grams every cubic millimeter; Another kind is to adopt 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 and make the double requirements that electric equipment products volume is little, damping and silencing is effective in actual applications, 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
It is high specific gravity rubber of 5.2-5.5 gram every cubic millimeter and preparation method thereof that object of the present invention is mainly to provide a kind of proportion, to solve current natural rubber and common high specific gravity rubber on the market, cannot meet 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 specific gravity rubber, its formulation weight umber is: 100 parts of No. 1, natural rubbers, magnesium oxide or zinc oxide 3-6 part, scorch retarder N-cyclohexylthiophthalimide 0.3-0.6 part, anti-aging agent 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, No. 46 50-75 parts of softening agent transformer oil, stearic acid 1-3 part, paraffin 1-3 part, Zinic stearas 1-3 part, soluble sulfur vulcanizing agent or promotor 3-6 part.
Preferred as one, the soluble sulfur vulcanizing agent in the present invention or promotor are 2-thiol benzothiazole, 2-dithio-bis-benzothiazole, 2'-dithio-bis-benzothiazole.
Preferred as one, the parts by weight of the environmental protection iron powder in the present invention are 680 parts, and softening agent transformer oil is 57 parts for No. 46, and Zinic stearas is 2 parts.
And a kind of production method of high specific gravity rubber, comprise the following steps:
S1: adopt No. 1,100 parts of natural rubbers, No. 46,50-75 part softening agent transformer oil, 1-3 part Zinic stearas, 620-740 part environmental protection iron banburying 30 minutes in Banbury mixer, shut down discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out to banburying again; it is 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; anti-aging agent 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 to banburying after 5 minutes again, add soluble sulfur vulcanizing agent or promotor after 3-6 part carry out again banburying 10 minutes.
S4: adopt curing temperature 160 to spend the product of S3, curing time 420 seconds, the condition of sulfide stress 20MPa is carried out compression molding.
Preferred as one, soluble sulfur vulcanizing agent or promotor described in the inventive method step S3 are 2-thiol benzothiazole, 2-dithio-bis-benzothiazole, 2'-dithio-bis-benzothiazole.
Preferred as one, described in the inventive method step S1, the parts by weight of environmental protection iron powder are 680 parts, and softening agent transformer oil is 57 parts for No. 46, and Zinic stearas is 2 parts.
A kind of high specific gravity rubber of the present invention and preparation method thereof, pass through calendering process, make softening agent, Zinic stearass etc. fully soak and activate the surface of environmental protection iron powder, and then it is uniformly distributed in natural rubber, pass through again sulfuration process, make environmental protection iron powder bridge joint on natural rubber, formed proportion and be the high specific gravity natural rubber structural part of 5.2-5.5 gram every cubic millimeter, can reach the damping and silencing service requirements of miniature electronic electric equipment products, meet the development trend of modern electronic product, for the electric equipment products microminiaturization of marching toward, 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 clearer, 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, is not intended to limit the present invention.
Embodiment 1:
A kind of high specific gravity rubber, its formulation weight umber is: 100 parts of No. 1, natural rubbers, 3 parts, magnesium oxide or zinc oxide, 0.3 part of scorch retarder N-cyclohexylthiophthalimide, 2 parts of anti-aging agent N-Phenyl beta naphthylamine, 50 parts of N330 carbon powders, 620 parts of environmental protection iron powders, 50 parts, No. 46, softening agent transformer oil, 1 part of stearic acid, 1 part, paraffin, 1 part of Zinic stearas, 3 parts of soluble sulfur vulcanizing agent 2-thiol benzothiazoles.
This kind of high specific gravity rubber adopts following steps to make:
S1: adopt No. 46,1 part Zinic stearas of No. 1,50 parts softening agent transformer oil of 100 parts of natural rubbers, 620 parts of environmental protection iron banburying 30 minutes in Banbury mixer, shut down discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out to banburying again; when in Banbury mixer, material temperature rise to 70 is spent; add again 3 parts, magnesium oxide or zinc oxide; 0.3 part of scorch retarder N-cyclohexylthiophthalimide, 2 parts of anti-aging agent N-Phenyl beta naphthylamine, 50 parts of N330 carbon powders; 1 part of stearic acid; 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 to banburying after 5 minutes again, add 3 parts of soluble sulfur vulcanizing agent 2-thiol benzothiazoles to carry out again banburying 10 minutes.
S4: adopt curing temperature 160 to spend the product of S3, curing time 420 seconds, the condition of sulfide stress 20MPa is carried out compression molding, makes thus proportion of the present invention and be the high specific gravity natural rubber of 5.2-5.5 gram every cubic millimeter.
Embodiment 2:
A kind of high specific gravity rubber, its formulation weight umber is: 100 parts of No. 1, natural rubbers, 6 parts, magnesium oxide or zinc oxide, 0.6 part of scorch retarder N-cyclohexylthiophthalimide, 6 parts of anti-aging agent N-sec.-propyl-N '-diphenyl-para-phenylene diamines, 70 parts of N330 carbon powders, 740 parts of environmental protection iron powders, 75 parts, No. 46, softening agent transformer oil, 3 parts of stearic acid, 3 parts, paraffin, 3 parts of Zinic stearass, 6 parts of soluble sulfur vulcanizing agent 2-dithio-bis-benzothiazoles.
This kind of high specific gravity rubber adopts following steps to make:
S1: adopt No. 46,3 parts Zinic stearass of No. 1,75 parts softening agent transformer oil of 100 parts of natural rubbers, 740 parts of environmental protection iron banburying 30 minutes in Banbury mixer, shut down discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out to banburying again; when in Banbury mixer, material temperature rise to 70 is spent; add again 6 parts, magnesium oxide or zinc oxide; 0.6 part of scorch retarder N-cyclohexylthiophthalimide, 6 parts of anti-aging agent N-sec.-propyl-N '-diphenyl-para-phenylene diamines, 70 parts of N330 carbon powders; 3 parts of stearic acid; 3 parts, 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 to banburying after 5 minutes again, add soluble sulfur vulcanizing agent or promotor after 3-6 part carry out again banburying 10 minutes.
S4: adopt curing temperature 160 to spend the product of S3, curing time 420 seconds, the condition of sulfide stress 20MPa is carried out compression molding, makes thus the high specific gravity natural rubber of 5.2-5.5 of the present invention gram every cubic millimeter.
Embodiment 3:
A kind of high specific gravity rubber, its formulation weight umber is: 100 parts of No. 1, natural rubbers, 4 parts, magnesium oxide or zinc oxide, 0.5 part of scorch retarder N-cyclohexylthiophthalimide, 3 parts of anti-aging agent N-sec.-propyl-N '-diphenyl-para-phenylene diamines, 60 parts of N330 carbon powders, 680 parts of environmental protection iron powders, 65 parts, No. 46, softening agent transformer oil, 2 parts of stearic acid, 2 parts, paraffin, 2 parts of Zinic stearass, 5 parts of soluble sulfur vulcanizing agent 2'-dithio-bis-benzothiazoles.
This kind of high specific gravity rubber adopts following steps to make:
S1: adopt No. 46,2 parts Zinic stearass of No. 1,65 parts softening agent transformer oil of 100 parts of natural rubbers, 700 parts of environmental protection iron banburying 30 minutes in Banbury mixer, shut down discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out to banburying again; when in Banbury mixer, material temperature rise to 70 is spent; add again 4 parts, magnesium oxide or zinc oxide; 0.5 part of scorch retarder N-cyclohexylthiophthalimide, 3 parts of anti-aging agent N-sec.-propyl-N '-diphenyl-para-phenylene diamines, 60 parts of N330 carbon powders; 2 parts of stearic acid; 2 parts, 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 to banburying after 5 minutes again, add 5 parts of soluble sulfur vulcanizing agent 2'-dithio-bis-benzothiazoles to carry out again banburying 10 minutes.
S4: adopt curing temperature 160 to spend the product of S3, curing time 420 seconds, the condition of sulfide stress 20MPa is carried out compression molding, makes thus the high specific gravity rubber of 5.2-5.5 of the present invention gram every cubic millimeter.
Claims (6)
1. a high specific gravity rubber, its component comprises: 100 parts of No. 1, natural rubbers, magnesium oxide or zinc oxide 3-6 part, scorch retarder N-cyclohexylthiophthalimide 0.3-0.6 part, anti-aging agent 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, No. 46 50-75 parts of softening agent transformer oil, stearic acid 1-3 part, paraffin 1-3 part, Zinic stearas 1-3 part, soluble sulfur vulcanizing agent or promotor 3-6 part.
2. high specific gravity rubber according to claim 1, is characterized in that, described soluble sulfur vulcanizing agent or promotor are 2-thiol benzothiazole, 2-dithio-bis-benzothiazole, 2'-dithio-bis-benzothiazole.
3. high specific gravity rubber according to claim 1, is characterized in that, the parts by weight of described environmental protection iron powder are 680 parts, and softening agent transformer oil is 57 parts for No. 46, and Zinic stearas is 2 parts.
4. a production method for high specific gravity rubber, comprises the following steps:
S1: adopt No. 1,100 parts of natural rubbers, No. 46,50-75 part softening agent transformer oil, 1-3 part Zinic stearas, 620-740 part environmental protection iron banburying 30 minutes in Banbury mixer, shut down discharging after mixing end, park 4 hours.
S2: the product of S1 is carried out to banburying again; when in Banbury mixer, material temperature rise to 70 is spent; add again magnesium oxide or zinc oxide 3-6 part; scorch retarder N-cyclohexylthiophthalimide 0.3-0.6 part, anti-aging agent 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 to banburying after 5 minutes again, add soluble sulfur vulcanizing agent or promotor after 3-6 part carry out again banburying 10 minutes.
S4: adopt curing temperature 160 to spend the product of S3, curing time 420 seconds, the condition of sulfide stress 20MPa is carried out compression molding.
5. the production method of high specific gravity rubber according to claim 3, is characterized in that, the vulcanizing agent of soluble sulfur described in step S3 or promotor are 2-thiol benzothiazole, 2-dithio-bis-benzothiazole, 2'-dithio-bis-benzothiazole.
6. the production method of high specific gravity rubber according to claim 3, is characterized in that, the parts by weight of the iron powder of environmental protection described in step S1 are 680 parts, and softening agent transformer oil is 57 parts for No. 46, and Zinic stearas is 2 parts.
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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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| CN103739897B CN103739897B (en) | 2016-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| 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 |
-
2014
- 2014-01-13 CN CN201410013133.2A patent/CN103739897B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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