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All-steel truck tread formula

A technology for trucks and formulas, applied in special tires, vehicle parts, tire parts and other directions, can solve the problems of low production efficiency and hard tread, and achieve the effect of improving curling ability, good use effect and simple preparation process

Inactive Publication Date: 2020-05-19
SHANDONG LINGLONG TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the processing and use performance of Eucommia rubber composite materials can be improved to a certain extent by blending with other rubbers, the problem of hard tread in the tire building process cannot be avoided, resulting in low production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of all-steel truck tread formula, its raw material is as follows in parts by weight: 80 parts of natural rubber, 20 parts of Eucommia rubber, 45 parts of carbon black N11545 parts, 4 parts of zinc oxide, 1.5 parts of stearic acid, 2.8 parts of antioxidant 6PPD , 3 parts of microcrystalline wax, 1.7 parts of oil-extended sulfur, 0.9 parts of accelerator NS, 0.18 parts of anti-scorch agent CTP, 2 parts of saturated and unsaturated fatty acid zinc.

Embodiment 2

[0023] A kind of all-steel truck tread formula, its raw material is as follows in parts by weight: 80 parts of natural rubber, 20 parts of Eucommia rubber, 45 parts of carbon black N11545 parts, 4 parts of zinc oxide, 1.5 parts of stearic acid, 2.8 parts of antioxidant 6PPD , 3 parts of microcrystalline wax, 1.7 parts of oil-extended sulfur, 0.9 parts of accelerator NS, 0.18 parts of anti-scorch agent CTP, 3 parts of saturated and unsaturated fatty acid zinc.

Embodiment 3

[0025] A kind of all-steel truck tread formula, its raw material is as follows in parts by weight: 80 parts of natural rubber, 20 parts of Eucommia rubber, 45 parts of carbon black N115, 4 parts of zinc oxide, 1.5 parts of stearic acid, antioxidant 6PPD 2.8 3 parts of microcrystalline wax, 1.7 parts of oil-extended sulfur, 0.9 parts of accelerator NS, 0.18 parts of anti-scorch agent CTP, 4 parts of saturated and unsaturated fatty acid zinc.

[0026] The preparation method of above-mentioned tread formula is carried out according to the following steps:

[0027] (a) Natural rubber, eucommia rubber and saturated and unsaturated fatty acid zinc are mixed in an open mill, and pre-dispersed for 2 minutes; then the natural rubber is put into the internal mixer and masticated for 20-40s, and the mixing temperature is 110 -140°C, the speed is 55-30rpm, first fast and then slow, the pressure of the top bolt is 45-55N / cm 2 , Lift the top bolt 2 times during mixing, and hold for 10-20s ...

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Abstract

The invention relates to an all-steel truck tread formula. The formula comprises the following raw material components in parts by weight: 70-90 parts of natural rubber, 10-30 parts of eucommia ulmoides rubber and 1-6 parts of saturated and unsaturated fatty acid zinc mixture. The eucommia ulmoides rubber is trans-1, 4-polyisoprene. The curling capacity of the eucommia ulmoides rubber tread composite material can be effectively improved; the tread fitting in the tire forming process is facilitated; the use ratio of the eucommia ulmoides rubber in the tread formula can be properly increased; the application amount of the gutta-percha in the rubber industry is increased, the situation of shortage of natural rubber resources in China is improved, eucommia ulmoides which is unique in China, wide in planting area and easy to popularize is efficiently utilized and popularized, the problem that the gutta-percha cannot be widely applied to the rubber industry is solved, the preparation processis simple, the using effect is good, and popularization is facilitated.

Description

technical field [0001] The invention relates to the field of rubber formulations, in particular to an all-steel truck tread formulation. Background technique [0002] Eucommia gum, produced in a unique economic crop in my country - Eucommia tree, its chemical composition is trans 1,4-polyisoprene, which is the same as natural rubber cis-1,4-polyisoprene constructs, but their properties are quite different. Eucommia rubber is a leather-like tough substance at room temperature. Pure rubber crystallizes at 10°C, becomes elastic at 40°C to 50°C, and softens at 65°C. These properties make Eucommia gum a hard plastic state at room temperature. It can only be used as a substitute for plastics or as a thermoplastic elastomer, and its application range is very limited, especially in the rubber industry. The performance difference between the two is so large because the trans structure of eucommia gum is shorter than the cis structure equivalent period of natural rubber. At room temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K5/098B60C1/00
CPCB60C1/0016C08L7/00C08L2205/025C08L2205/03C08K13/02C08K5/098
Inventor 王锋何子锋吴晨静韩海光马勇米彦青朱滕鹏王盼陶昆聂秋海
Owner SHANDONG LINGLONG TIRE
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