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A kind of tire carcass steel wire rubber compound and preparation method thereof

A technology for steel wire rubber and tires, which is applied in the field of tire manufacturing, can solve the problems of poor rubber aging performance and deterioration of rubber aging performance, and achieve the effect of easy steps and simple preparation methods

Active Publication Date: 2021-04-13
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of cobalt salts will also lead to poor aging performance of the rubber compound. The higher the cobalt salt content, the worse the aging performance of the rubber compound.

Method used

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  • A kind of tire carcass steel wire rubber compound and preparation method thereof
  • A kind of tire carcass steel wire rubber compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for a tire carcass steel wire compound, comprising the steps of:

[0020] (1) One-stage master batching: add 100 parts of natural rubber, 0.1 part of B-type peptizer, 35 parts of carbon black, 6 parts of zinc oxide, 2 parts of stearic acid, 2 parts of anti-aging agent, m-benzene 1 part of diphenol, the rotor speed of the internal mixer is 45 rpm, the pressure of the top bolt is 0.5MPa, the mixing time is 50 seconds, and the glue discharge temperature is 150°C to obtain a section of masterbatch;

[0021] (2) Second-stage master batching: add one-stage masterbatch and 10 parts of carbon black to the internal mixer, the rotor speed of the internal mixer is 50 rpm, the pressure of the top bolt is 0.4MPa, the mixing time is 100 seconds, and the discharge time is 100 seconds. The glue temperature is 155°C, and the second-stage masterbatch is obtained;

[0022] (3) Final refining: add 5 parts of second-stage masterbatch, binder, 4 parts of insoluble sulfu...

Embodiment 2

[0024] A preparation method for a tire carcass steel wire compound, comprising the steps of:

[0025] (1) One-stage master batching: Add 100 parts of natural rubber, 0.3 parts of B-type peptizer, 45 parts of carbon black, 7 parts of zinc oxide, 1 part of stearic acid, 1 part of anti-aging agent, 1 part of m-benzene 2 parts of diphenol, the rotor speed of the internal mixer is 50 rpm, the pressure of the top bolt is 0.4MPa, the mixing time is 140 seconds, and the glue discharge temperature is 155°C to obtain a section of masterbatch;

[0026] (2) Two-stage master mixing: add one-stage masterbatch and 8 parts of carbon black to the internal mixer, the rotor speed of the internal mixer is 45-55 rpm, the pressure of the top bolt is 0.3MPa, and the mixing time is 50 seconds , the discharge temperature is 150°C, and the second-stage masterbatch is obtained;

[0027] (3) Final refining: add 1 part of second-stage masterbatch, adhesive, 2 parts of insoluble sulfur, 0.5 part of accele...

Embodiment 3

[0029] A preparation method for a tire carcass steel wire compound, comprising the steps of:

[0030] (1) One-stage master batching: Add 100 parts of natural rubber, 0.2 parts of B-type peptizer, 50 parts of carbon black, 8 parts of zinc oxide, 1 part of stearic acid, 3 parts of anti-aging agent, m-benzene 2 parts of diphenol, the rotor speed of the internal mixer is 55 rpm, the pressure of the top bolt is 0.3MPa, the mixing time is 120 seconds, and the glue discharge temperature is 165°C to obtain a section of masterbatch;

[0031] (2) Second-stage master batching: add one-stage masterbatch and 10 parts of carbon black to the internal mixer, the rotor speed of the internal mixer is 55 rpm, the pressure of the top bolt is 0.5 MPa, the mixing time is 110 seconds, and the discharge time is 110 seconds. The glue temperature is 150-165°C to obtain the second-stage masterbatch;

[0032] (3) Final refining: add 4 parts of second-stage masterbatch, binder, 6 parts of insoluble sulfu...

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Abstract

The invention relates to a tire carcass steel wire compound and a preparation method thereof. The components are calculated in parts by weight: 100 parts of natural rubber, 0.1-0.3 parts of peptizer, 30-60 parts of carbon black, and 5-10 parts of zinc oxide 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, 1-3 parts of resorcinol, 1-5 parts of adhesive, 2-6 parts of insoluble sulfur, 0.5-2 parts of accelerator, anti-scorch Dose 0.1‑0.4 parts. During preparation, the final rubber compound is obtained through one stage master batch, two stage master batch and final batch. The preparation method of the present invention is simple, and the steps are easy to operate. The rubber material of the prepared tire carcass and the copper-coated steel wire loaded with cobalt maintain a good wire drawing force, and the retention rate of the drawing force after aging all meets the use requirements of the radial truck tire. .

Description

technical field [0001] The invention relates to a tire carcass steel wire compound and a preparation method thereof, belonging to the technical field of tire manufacturing. Background technique [0002] In recent years, with the rapid development of China's automobile industry, China's tire industry is also developing steadily. At present, China has become the world's largest tire producer, but also the world's largest tire market. However, the lack of core tire technology in my country has not been completely changed with the expansion of the industry scale and market and the improvement of manufacturing technology. Therefore, vigorously developing new technology and new formula is the only way to realize the transformation of my country from a big tire manufacturing country to a tire powerful country. [0003] Cobalt salts are important adhesion promoters for bonding tire compounds to copper-coated steel wires. In tire compound formulations, cobalt salts are usually add...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/22C08K5/09C08K5/13
CPCC08K3/04C08K3/22C08K5/09C08K5/13C08K13/02C08K2003/2296C08L7/00
Inventor 朱凉伟
Owner JIANGSU GENERAL SCI TECH
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