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High-proportion rubber and preparation method thereof

A high specific gravity and rubber technology, applied in the field of high specific gravity rubber and its preparation, can solve the problems that cannot meet the volume of electronic and electrical products, high shock absorption and noise reduction performance requirements, etc.

Active Publication Date: 2014-04-23
四川隆盛科发实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is mainly to provide a high-specific-gravity rubber with a specific gravity of 5.2-5.5 grams per cubic millimeter and a preparation method thereof, so as to solve the problem that the natural rubber and ordinary high-specific-gravity rubber currently on the market cannot meet the needs of electronic and electrical products with small volume and shock absorption. Demand for high noise reduction performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of high specific gravity rubber, its formulation weight parts are: 100 parts of natural rubber No. 1, 3 parts of magnesium oxide or zinc oxide, 0.3 parts of anti-scorch agent N-cyclohexylthiophthalimide, anti-aging agent N - 2 parts of phenyl-β-naphthylamine, 50 parts of N330 carbon black powder, 620 parts of environmentally friendly iron powder, 50 parts of plasticizer transformer oil No. 46, 1 part of stearic acid, 1 part of paraffin, 1 part of zinc stearate , 3 parts of soluble sulfur vulcanizing agent 2-mercaptobenzothiazole.

[0019] This kind of high specific gravity rubber adopts following steps to make:

[0020] S1: Use 100 parts of natural rubber No. 1, 50 parts of plasticizer transformer oil No. 46, 1 part of zinc stearate, and 620 parts of environmental protection iron to mix in an internal mixer for 30 minutes, and stop the machine for discharging after the mixing is completed. , parked for 4 hours.

[0021] S2: Banbury the product of S1 again, and ...

Embodiment 2

[0025] A kind of high specific gravity rubber, its formula parts by weight are: 100 parts of natural rubber No. 1, 6 parts of magnesium oxide or zinc oxide, 0.6 part of anti-scorch agent N-cyclohexylthiophthalimide, anti-aging agent N - 6 parts of isopropyl-N'-phenyl-p-phenylenediamine, 70 parts of N330 carbon black powder, 740 parts of environmental protection iron powder, 75 parts of plasticizer transformer oil No. 46, 3 parts of stearic acid, 3 parts of paraffin, 3 parts of zinc stearate, 6 parts of soluble sulfur vulcanizing agent 2-dithiodibenzothiazole.

[0026] This kind of high specific gravity rubber adopts following steps to make:

[0027] S1: Use 100 parts of natural rubber No. 1, 75 parts of plasticizer transformer oil No. 46, 3 parts of zinc stearate, and 740 parts of environmentally friendly iron to mix in an internal mixer for 30 minutes, and stop the machine after the mixing is completed. , parked for 4 hours.

[0028] S2: Banbury the product of S1 again, and...

Embodiment 3

[0032] A kind of high specific gravity rubber, its formula parts by weight are: 100 parts of natural rubber No. 1, 4 parts of magnesium oxide or zinc oxide, 0.5 part of anti-scorch agent N-cyclohexylthiophthalimide, anti-aging agent N - 3 parts of isopropyl-N'-phenyl-p-phenylenediamine, 60 parts of N330 carbon black powder, 680 parts of environmental protection iron powder, 65 parts of plasticizer transformer oil No. 46, 2 parts of stearic acid, 2 parts of paraffin, 2 parts of zinc stearate, 5 parts of soluble sulfur vulcanizing agent 2'-dithiodibenzothiazole.

[0033] This kind of high specific gravity rubber adopts following steps to make:

[0034] S1: Use 100 parts of natural rubber No. 1, 65 parts of plasticizer transformer oil No. 46, 2 parts of zinc stearate, and 700 parts of environmentally friendly iron to mix in an internal mixer for 30 minutes, and stop the machine after the mixing is completed. , parked for 4 hours.

[0035] S2: Banbury the product of S1 again, an...

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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 [0001] The invention relates to the field of rubber preparation, in particular to a high specific gravity rubber and a preparation method thereof. Background technique [0002] With the rapid development of the electronic and electrical industry, natural rubber is widely used in the field of shock absorption and noise reduction of electronic and electrical products because of its excellent practical properties such as wear resistance, softness, good shock absorption and noise reduction effect, environmental protection, and low production cost. However, natural rubber also has defects in the actual application process. Because the specific gravity of the mixed rubber is generally below 4.5 grams per cubic millimeter, the specific gravity is low, and its volume must be increased to achieve better shock absorption and noise reduction. In the application of electronic and electrical products, the practical effect of ultra-quiet electronic products can only be ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/22C08K3/08C08K5/18C08K3/04C08K5/09C08K5/098C08K5/47B29C35/02
Inventor 代甫容
Owner 四川隆盛科发实业有限公司
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