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Method for reinforcing performance of tread rubber of lorry tyre by resin acceptor modified white carbon black

A tire tread and coupling agent technology, applied in the direction of fibrous filler, dyed organic silicon compound treatment, etc., can solve the problems of poor rubber processing performance, difficulty in dispersing, poor compatibility, etc.

Inactive Publication Date: 2009-10-14
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the general nano-powder has poor compatibility with rubber molecules, and it is difficult to disperse in the organic phase, and the particles tend to agglomerate, which makes the processing performance of rubber worse.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Nano-silica treated with coupling agent KH570 is added to natural rubber.

[0015] The nano-silica powder with an average particle size of 20nm is vacuum-dried at 120°C for 4 hours; then organic surface treatment is carried out, and KH570 diluted with ethanol with a weight of 2% to 8% of the nano-powder is sprayed on the nano-powder. Then stir to mix in a low speed kneader. The nanometer white carbon black composite powder with modification amount of 2%, 4%, 8% is obtained.

[0016] On the basis of keeping the natural rubber production formula unchanged and the technological process unchanged, the nano-silica composite powder modified by KH570 was added to the natural rubber (see Table 1 for the formula of the rubber material); after full mixing, the Raw rubber, then vulcanized and molded, and made into samples according to national standards.

[0017] Table 1 sizing formula components (parts by weight)

[0018] Raw material name

parts by weight

Raw ...

Embodiment 2

[0023] Nano-silica treated with coupling agent KH560 is added to natural rubber.

[0024] The nano-silica powder with an average particle size of 20nm is vacuum-dried at 120°C for 4 hours; then organic surface treatment is performed, and KH560 diluted with ethanol with a weight of 2% to 8% of the nano-powder is sprayed on the nano-powder. Then stir to mix in a low speed kneader. The nanometer white carbon black composite powder with modification amount of 2%, 4%, 8% is obtained.

[0025] On the basis of keeping the natural rubber production formula unchanged and the process flow unchanged, the nano-silica composite powder modified by KH560 was added to the natural rubber (the formula of the rubber material is the same as Table 1); after fully mixing, it was obtained Raw rubber, then vulcanized and molded, and made into samples according to national standards.

[0026] The mechanical properties of the above samples were tested by instruments, and the test results are shown in...

Embodiment 3

[0030] Nano silica surface treated with coupling agent Si69 is added to natural rubber.

[0031] The nano-silica powder with an average particle size of 20nm is vacuum-dried at 120°C for 4 hours; then organic surface treatment is carried out, and Si69 with a weight of 2% to 8% of the nano-powder is diluted with ethanol and sprayed on the nano-powder. Then stir to mix in a low speed kneader. The nanometer white carbon black composite powder with modification amount of 2%, 4%, 8% is obtained.

[0032] On the basis of keeping the natural rubber production formula unchanged and the process flow unchanged, add nano-silica composite powder modified by Si69 into the natural rubber (the formula of the rubber material is the same as Table 1); after fully mixing, it is obtained Raw rubber, then vulcanized and molded, and made into samples according to national standards.

[0033] The mechanical properties of the above samples were tested by instruments, and the test results are shown ...

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PUM

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Abstract

The invention relates to a method for reinforcing performance of a tread rubber of a lorry tyre by resin acceptor modified white carbon black, belonging to the technical field of nanometer material modified rubber process. The method comprises the following steps that: nanometer white carbon black is dried to remove moisture in vacuum at 120 DEG C, and is subjected to surface treating of a resin acceptor, wherein the dosage of the resin acceptor is 1 to 10 percent of the nanometer white carbon black powder by weight; on the basis of maintaining the prior production formula and the production flow of rubber, the nanometer white carbon black composite powder modified by the resin acceptor with 20 to 30 percent of unvulcanized rubber by weight is added in the process of mixing rubber. Testing results prove that after addition of the composite nanometer white carbon black, the tread rubber of the lorry tyre is greatly improved in tensile strength, tearing strength, hardness and the like.

Description

technical field [0001] The invention relates to a method for enhancing the performance of tire tread rubber by coupling agent modified white carbon black, and belongs to the technical field of nano-material modified rubber technology. Background technique [0002] Tires play a very important role in the various parts of the car and have a great impact on the driving performance of the car. During the use of rubber tires, there are disadvantages such as short service life, poor wear resistance and tear resistance, especially for truck tires, which often burst due to limited load capacity. Therefore, the tire tread compound is required to be cut-resistant, fatigue-resistant, wear-resistant, high in hardness, small in deformation, and low in heat generation. With the continuous improvement of the performance requirements of the tread rubber products of truck tires, how to further improve the performance of the tread rubber of truck tires is a major subject in the current techn...

Claims

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Application Information

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IPC IPC(8): C09C1/28C09C3/12C08K9/06C08L21/00
Inventor 施利毅吴荣懿赵国璋芦火根
Owner SHANGHAI UNIV
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