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Modified tyre rubber composition and preparation method thereof

A technology for tires and rubber compounds, which is applied in the field of modified tire rubber materials containing waste fibers and its preparation, can solve the problems of high cost, unfavorable industrialized production, poor puncture resistance, etc., achieve good resistance effect, and improve puncture resistance. performance effect

Active Publication Date: 2014-09-17
SICHUAN YUANXING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High wear resistance and puncture resistance have always been an important direction of tire development. Tire puncture is a major factor leading to tire damage. The general tire tread and buffer rubber are made of pure rubber, and the puncture resistance performance is not good.
At present, puncture-resistant tires are mostly produced by increasing the number of cord layers or using special cords. The high cost is not conducive to industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The weight and number ratio of each component raw material is:

[0018] Natural rubber NR: 50 parts;

[0019] Rosin styrene butadiene rubber SBR1500: 30 parts;

[0020] Butadiene rubber BR9000: 20 parts;

[0021] Carbon black N330: 40 parts;

[0022] Carbon black N660: 15 parts;

[0023] Waste fiber: 15 parts;

[0024] Aromatic oil: 10 parts;

[0025] Tackifier: 3 parts;

[0026] Zinc oxide: 3.5 parts;

[0027] Stearic acid: 1.5 parts;

[0028] Antiaging agent 4020: 1.0 parts;

[0029] Antiaging agent RD: 1.5 parts;

[0030] Antiaging agent BLE-W: 1.5 parts;

[0031] Resorcinol: 1.0 part;

[0032] Methylene melamine: 2.2 parts;

[0033] Accelerator CZ: 0.6 parts;

[0034] Accelerator DM: 0.4 parts;

[0035] Sulfur powder S: 1.65 parts.

[0036] Its production steps are:

[0037] 1. The waste tires are pulverized into powder twice, and then separated into coarse rubber powder, fine steel wire, fine rubber powder + fiber mixture through magnetic separation...

Embodiment 2

[0042] The weight and number ratio of each component raw material is:

[0043] Natural rubber NR: 40 parts;

[0044] Styrene butadiene rubber SBR1500: 35 parts;

[0045] Butadiene rubber BR9000: 25 parts;

[0046] Carbon black N330: 35 parts;

[0047] Carbon black N660: 10 parts;

[0048] Waste fiber: 10 parts;

[0049] Aromatic oil: 5 parts;

[0050] Tackifier: 1 part;

[0051] Zinc oxide: 3.5 parts;

[0052] Stearic acid: 0.5 part;

[0053] Antiaging agent 4020: 1.0 parts;

[0054] Antiaging agent RD: 0.5 part;

[0055] Antiaging agent BLE-W: 0.5 parts;

[0056] Resorcinol: 0.5 part;

[0057] Methylenemelamine: 0.5 part;

[0058] Accelerator CZ: 0.1 part;

[0059] Accelerator DM: 0.1 part;

[0060] Sulfur powder S: 1 part.

[0061] Its production steps are identical with embodiment 1. Add processed waste fiber and use resorcinol and methylene melamine to modify the rubber compound. The tear strength and tear performance are higher than the ordinary formula; t...

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Abstract

The invention discloses waste fiber-containing modified tyre rubber. The waste fiber-containing modified tyre rubber comprises natural rubber, butadiene styrene rubber, butadiene rubber, carbon black, zinc oxide, stearic acid, an antiager, sulfur powder, aromatic hydrocarbon oil, a promoter, resorcinol, methylene melamine, a tackifier and waste fibers. A preparation method of the waste fiber-containing modified tyre rubber comprises the following steps of crushing waste tyre, carrying out winnowing to obtain waste fibers, carrying out mixing, adding methylene melamine and carrying out open milling. The waste fiber-containing modified tyre rubber is mainly used for buffer rubber of a diagonal tyre or tyre surface rubber and can obviously improve puncture resistance of vulcanized rubber. The diagonal tyre prepared from the waste fiber-containing modified tyre rubber can reduce cord fabric separation in actual use. The waste fiber-containing modified tyre rubber with the short fibers forms a net structure and can effectively prevent sharp object puncture. The high-strength puncture-resistant tyre is not punctured and cut by foreign matters such as broken stone, iron nails and glass fragments and has good resistance effects.

Description

technical field [0001] The invention belongs to a rubber compound for tires and a preparation method thereof, in particular to a modified tire rubber compound containing waste fibers and a preparation method thereof. Background technique [0002] High wear resistance and puncture resistance have always been an important direction of tire development. Tire puncture is a major factor leading to tire damage. The general tire tread and buffer rubber are made of pure rubber, and the puncture resistance performance is not good. . At present, puncture-resistant tires are mostly produced by increasing the number of cord layers or using special cords, and the high cost is not conducive to industrial production. Contents of the invention [0003] According to the deficiencies of the prior art, the invention discloses a modified tire compound containing waste fibers. The sizing material of the present invention is used in tire tread or buffer rubber, and its main feature is to use ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L9/00C08K13/04C08K7/02C08K5/13C08K5/3492B60C1/00
Inventor 郑昌福
Owner SICHUAN YUANXING RUBBER