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Modified tyre stock containing crushed curtain cloth

A cord and tire technology, which is applied in the field of modified tire rubber containing broken cords and its preparation, can solve the problems of poor puncture resistance, high cost and unfavorable industrial production, etc., and achieve improved puncture resistance and good resistance effect Effect

Active Publication Date: 2010-08-25
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

[0011] The weight and number ratio of each component raw material is:

[0012] Natural rubber NR: 50 parts;

[0013] Rosin styrene butadiene rubber SBR1500: 30 parts;

[0014] Butadiene rubber BR9000: 20 parts;

[0015] Carbon black N330: 40 parts;

[0016] Carbon black N660: 15 parts;

[0017] Broken Curtain: 15 parts;

[0018] Aromatic oil: 10 parts;

[0019] Tackifier: 3 parts;

[0020] Zinc oxide: 3.5 parts;

[0021] Stearic acid: 1.5 parts;

[0022] Antiaging agent 4020: 1.0 parts;

[0023] Antiaging agent RD: 1.5 parts;

[0024] Antiaging agent BLE-W: 1.5 parts;

[0025] Resorcinol: 1.0 parts;

[0026] Methylenemelamine: 2.2 parts;

[0027] Accelerator CZ: 0.6 parts;

[0028] Accelerator DM: 0.4 part;

[0029] Sulfur powder S: 1.65 parts.

[0030] Its production steps are:

[0031] 1. The broken cords in the present invention are made from scrap cords in tire production. The specific method is to use an open mill to break the cords in the cords under the ...

Embodiment 2

[0037] The weight and number ratio of each component raw material is:

[0038] Natural rubber NR: 40 parts;

[0039] Styrene butadiene rubber SBR1500: 35 parts;

[0040] Butadiene rubber BR9000: 25 parts;

[0041] Carbon black N330: 35 parts;

[0042] Carbon black N660: 10 parts;

[0043] Broken Curtain: 10 parts;

[0044] Aromatic oil: 5 parts;

[0045] Tackifier: 1 part;

[0046] Zinc oxide: 3.5 parts;

[0047] Stearic acid: 0.5 part;

[0048] Antiaging agent 4020: 1.0 parts;

[0049] Antiaging agent RD: 0.5 parts;

[0050] Antiaging agent BLE-W: 0.5 parts;

[0051] Resorcinol: 0.5 part;

[0052] Methylenemelamine: 0.5 parts;

[0053] Accelerator CZ: 0.1 part;

[0054] Accelerator DM: 0.1 part;

[0055] Sulfur powder S: 1 part.

[0056] Its production steps are identical with embodiment 1. Adding the processed waste cord and using resorcinol and methylene melamine to modify the rubber compound has higher tear strength and tear performance than the ordinary fo...

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Abstract

The invention discloses a modified tyre stock containing crushed curtain cloth, which comprises the following main components of natural rubber, butadiene styrene rubber, butadiene rubber, carbon black, zinc oxide, stearic acid, an anti-aging agent, sulphur powder, aromatic oil, an accelerator, binding agent, resorcinol, methylene melamine, resin, tackifier and the like. The modified tyre stock is mainly characterized by being prepared by mixing the modified crushed curtain cloth and the components in an internal mixer and an open mill. In the invention, the crushed curtain cloth is added into the stock to form a mesh structure, so that sharp objects are prevented from penetrating; the tyre with high strength and puncture resistance not only can resist the puncture and the cutting of gravels, iron nails, glass fragments and other foreign bodies, but also has favorable resisting effect for knife tabbing, needle puncture and the like as well as can be widely used for special vehicles, locomotive cars, electric vehicles, bicycles and motor cycles.

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 broken cords 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 shortcomings of the prior art, the invention discloses a modified tire compound containing broken cords. The sizing material of the present invention is used in tire tread or buffer rubber, and its main feature is that it...

Claims

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Application Information

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