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Radial tire belt compound for small rough terrain lift trucks and preparation method of radial tire belt compound

A technology for radial tires and off-road forklift trucks is applied in the field of radial tire belt rubber and its preparation, which can solve the problem of reducing the adhesion performance of rubber compound and steel cord, poor adhesion between rubber compound and steel cord, and affecting vulcanization. The physical properties of the adhesive can be improved to improve processing safety, high tear strength, and good fatigue resistance.

Inactive Publication Date: 2015-03-25
SHANDONG YONGTAI CHEM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current rubber material of the belt layer has poor safety performance during processing, and the bonding performance between the rubber material and the steel cord is not good.
Scorching is prone to occur during the mixing process, affecting product quality, increasing rubber consumption, and poor cord flatness
At the same time, aromatic oil is used in the existing belt rubber formula to improve the processing performance of the rubber compound, but in the actual production process, the aromatic oil will greatly affect the physical properties of the vulcanized rubber and reduce the adhesion between the rubber compound and the steel cord performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The radial tire belt rubber for small off-road forklifts is composed of the following raw materials in proportions by weight:

[0068] SMR20 100 copies;

[0069] Carbon black N326 53 parts;

[0070] Zinc oxide 11 parts;

[0071] 0.4 parts of stearic acid;

[0072] 2.2 parts of petroleum resin;

[0073] 0.3 parts of antioxidant RD;

[0074] 0.5 parts of cobalt caprate;

[0075] Anti-scorch agent CTP 0.2 parts;

[0076] 3.5 parts of tert-butylphenolic vulcanized resin;

[0077] 1.2 parts of sulfur;

[0078] Accelerator NOBS 1 part.

[0079]The preparation method of the radial tire belt rubber for small off-road forklifts comprises the following four stages of mixing steps, wherein carbon black is added in stages:

[0080] (1) One-stage mixing: add 2 / 3 of 100 parts of SMR20, 0.4 parts of stearic acid, 3.5 parts of tert-butylphenol aldehyde vulcanization resin, 2.2 parts of petroleum resin and 53 parts of carbon black N326 into the internal mixer, and the internal ...

Embodiment 2

[0086] The radial tire belt rubber for small off-road forklifts is composed of the following raw materials in proportions by weight:

[0087] SMR20 100 copies;

[0088] Carbon black N326 58 parts;

[0089] 8 parts of zinc oxide;

[0090] 0.6 parts of stearic acid;

[0091] 1.4 parts of petroleum resin;

[0092] 0.6 parts of antioxidant RD;

[0093] 0.2 parts of cobalt caprate;

[0094] Anti-scorch agent CTP 0.4 parts;

[0095] 3 parts of tert-butylphenolic vulcanization resin;

[0096] 1.5 parts of sulfur;

[0097] Accelerator NOBS 0.8 parts.

[0098] The preparation method of the radial tire belt rubber for small off-road forklifts comprises the following four stages of mixing steps, wherein carbon black is added in stages:

[0099] (1) One-stage mixing: add 100 parts of SMR20, 0.6 parts of stearic acid, 3 parts of tert-butylphenolic vulcanized resin, 1.4 parts of petroleum resin and 2 / 3 of 58 parts of carbon black N326 into the internal mixer, of which the internal...

Embodiment 3

[0105] The radial tire belt rubber for small off-road forklifts is composed of the following raw materials in proportions by weight:

[0106] SMR20 100 copies;

[0107] Carbon black N326 56 parts;

[0108] 10 parts of zinc oxide;

[0109] 0.5 parts of stearic acid;

[0110] 2 parts petroleum resin;

[0111] Anti-aging agent RD 0.5 parts;

[0112] 0.2 parts of cobalt caprate;

[0113] Anti-scorch agent CTP 0.2 parts;

[0114] 3.5 parts of tert-butylphenol-formaldehyde vulcanization resin;

[0115] 1.5 parts of sulfur;

[0116] Accelerator NOBS 1 part.

[0117] The preparation method of the radial tire belt rubber for small off-road forklifts comprises the following four stages of mixing steps, wherein carbon black is added in stages:

[0118] (1) One-stage mixing: Add 100 parts of SMR20, 0.5 parts of stearic acid, 3.5 parts of tert-butylphenol aldehyde vulcanization resin, 2 parts of petroleum resin and 2 / 3 of 56 parts of carbon black N326 into the internal mixer, of w...

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Abstract

The invention belongs to the technical field of tire rubber, and particularly relates to a radial tire belt compound for small rough terrain lift trucks and a preparation method of the radial tire belt compound. The radial tire belt compound for small rough terrain lift trucks is prepared from the following raw materials in parts by weight: 100 parts of SMR20, 53-58 parts of carbon black 326, 8-11 parts of zinc oxide, 0.4-0.6 part of stearic acid, 1.4-2.2 parts of petroleum resin, 0.3-0.6 part of anti-aging agent RD, 0.2-0.5 part of cobalt canoic acid, 0.2-0.4 part of a scorch retarder CTP, 3-3.5 parts of tert-butyl-phenolic curing resin, 1.2-1.5 parts of sulfur and 0.8-1 part of an accelerant NOBS. The radial tire belt compound is matched with the performance of the small rough terrain lift trucks, and adapts to the working environment of the rough terrain lift trucks; the processing safety of the belt compound is improved; the bonding performance of a sizing material and an all-steel cord is improved; and the yield and quality of the tire are improved.

Description

technical field [0001] The invention belongs to the technical field of tire rubber, in particular to a radial tire belt rubber used for small off-road forklifts and a preparation method thereof. Background technique [0002] Small off-road forklifts are equipment for loading and unloading materials in airports, docks, stations and other material distribution centers with poor road conditions. They have good mobility and reliable cross-country performance. The speed of off-road forklifts is higher than that of ordinary forklifts, and its mobility is obvious; the engine power is large and the off-road performance is high. [0003] The rubber used in the belt layer of small off-road forklift radial tires needs to have the following basic requirements: high tear strength; good fatigue resistance; good adhesion to cords. But the sizing material of the belt layer rubber has poor safety performance in the processing process at present, and the bonding performance of the sizing mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L57/02C08K13/02C08K3/04C08K3/22C08K5/09B60C1/00
CPCC08L7/00B29B7/005C08L2205/03
Inventor 尤晓明王显涛李洋迟文泉邓世海
Owner SHANDONG YONGTAI CHEM GROUP
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