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Rubber composition and product thereof

A rubber composition and rubber technology, applied in textiles and papermaking, other household utensils, yarns, etc., can solve the problem of low tear strength of synthetic rubber, and achieve the effect of improving mechanical properties and notch tear strength

Inactive Publication Date: 2009-07-15
严晓敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the tear strength of synthetic rubber is low, especially butadiene rubber, which can hardly be used alone as the tread compound of tires.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Get 100 parts by weight of butadiene rubber, gradually mix in 3 parts by weight of zinc oxide, 2 parts by weight of stearic acid, 1.5 parts by weight of antioxidant, 1 part by weight of paraffin wax, 65 parts by weight of modified carbon black, 1 part by weight of process oil, softener 6 parts by weight, 1.5 parts by weight of accelerator, and 2 parts by weight of sulfur. After mixing, vulcanize for 30 minutes at a temperature of 150° C. and a pressure of 5 kg / cm2 on a press. Sample properties: tensile strength 19.1Mpa, tear strength 75kN / m, notch tear strength 20kN / m.

[0019] Refer to the comparison example:

[0020] Butadiene Rubber Properties: Tensile Strength 15.39Mpa, Tear Strength 52.92kN / m, Notch Tear Strength No Data. The above data are quoted from "Encyclopedia of Practical Formulas for Rubber Products" edited by Xie Zhonglin, Chemical Industry Press, 1999 edition, page 18 full butadiene rubber formula 1.

[0021] It can be seen from the above comparison tha...

Embodiment 2

[0023] Get 100 parts by weight of styrene-butadiene rubber, 16 parts by weight of Eucommia gum and mix them evenly, then gradually mix in 3 parts by weight of zinc oxide, 2 parts by weight of stearic acid, 1.5 parts by weight of antioxidant, 1 part by weight of paraffin wax, and 60 parts by weight of modified carbon black , 0.5 parts by weight of operating oil, 5 parts by weight of softener, 1.3 parts by weight of accelerator, and 1.5 parts by weight of sulfur. After mixing, vulcanize for 30 minutes at a temperature of 150 ° C under a pressure of 5 kg / cm2 on a press. The main properties of the obtained sample are: tensile strength 22Mpa, tear strength 100kN / m, notch tear strength 20kN / m.

[0024] Refer to the comparison example:

[0025] Properties of solution-polymerized styrene-butadiene rubber: tensile strength 12.74Mpa, tear strength 60.76kN / m, no data on notch tear strength. The above data are quoted from "Encyclopedia of Practical Formulas for Rubber Products" edited by...

Embodiment 3

[0028] Get 66 parts by weight of styrene-butadiene rubber, 34 parts by weight of reclaimed rubber and mix them evenly, then gradually mix in 3 parts by weight of zinc oxide, 2 parts by weight of stearic acid, 1.5 parts by weight of antioxidant, 1 part by weight of paraffin wax, and 58 parts by weight of modified carbon black , 5 parts by weight of operating oil, 5 parts by weight of softener, 1.3 parts by weight of accelerator, and 1.5 parts by weight of sulfur. After mixing, vulcanize for 30 minutes at a temperature of 150 ° C under a pressure of 5 kg / cm2 on a press. The main properties of the obtained sample are: tensile strength 22Mpa, tear strength 83.9kN / m, notch tear strength 21kN / m.

[0029] Refer to the comparison example:

[0030] 75 parts by weight of styrene-butadiene rubber, 50 parts by weight of reclaimed rubber Properties: tensile strength 10.41Mpa. The above data are quoted from "Encyclopedia of Practical Formulas for Rubber Products" edited by Xie Zhonglin, Ch...

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Abstract

The invention relates to a rubber combination, which comprises: 100 pars of rubber being a major constituent, 0-60 parts of anti-polyolefine, 1-5 parts of zinc oxide, 1-4 parts of stearic acid, 0.5-2 parts of age inhibitor, 0.5-2 parts of paraffinum, 20-150 parts of modification filling, 1-5 parts of process oil, 0.5-20 parts of softener, 0.5-3 parts of promoter, and 0.5-3 parts of sulfur. The rubber combination is molded, shaped, vulcanized so as to obtain various corresponding high performance products, in particular to tyre products, cord ply adhesive tapes and conveyor belt and has extensive use.

Description

Technical field [0001] The invention relates to a rubber composition and its products, in particular to the rubber composition and its products for tires, cord layer rubber cloths and rubber for conveyor belts. Background technique [0002] So far in the rubber industry, natural rubber is still used as the main raw material in most demanding fields, especially the tire field. This is because it is generally accepted that the overall performance of natural rubber is superior to synthetic rubber, such as styrene-butadiene rubber and butadiene rubber. The main reason is that the tear strength of synthetic rubber is low, especially butadiene rubber, which can hardly be used alone as a tread compound for tires. However, in terms of wear resistance, among the above three rubber varieties, butadiene rubber is the best of the three, while natural rubber is the worst. [0003] The invention greatly improves the mechanical properties of synthetic rubber, especially styrene-butadiene...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08L7/00C08L23/16C08L23/22C08L17/00C08K5/09D02G3/48D06N3/00B29D29/06C08L91/06C08K3/22C08K3/06
Inventor 严晓敏严晓焰
Owner 严晓敏
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