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Sidewall rubber material as well as preparation method and application thereof

A sidewall rubber and rubber technology, which is applied in the field of sidewall rubber and its preparation, can solve problems such as limited mileage, and achieve the effects of improved mileage, high modulus, and excellent heat resistance

Pending Publication Date: 2022-05-13
GUANGZHOU FENGLI RUBBER TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the application provides a sidewall compound and its preparation method and application, by improving the formula of the sidewall compound attached to the tire sidewall surface, the modulus of the sidewall compound is improved, and the hysteresis energy is reduced loss, so as to solve the technical problem of improving the limited cruising range of new energy vehicles and traditional fuel vehicles in the existing technology

Method used

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  • Sidewall rubber material as well as preparation method and application thereof
  • Sidewall rubber material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0068] The present embodiment 1 provides the preparation method of the first tire sidewall compound, comprising the following steps:

[0069] Step 1, adding natural rubber and modified butadiene rubber into an internal mixer for masticating to obtain a section of masterbatch;

[0070] Step 2, a section of masterbatch prepared in step 1, with a specific surface area of ​​35m 2 N660 carbon black, active agent, anti-aging agent, and tackifying resin of / g are added to the internal mixer to carry out the second-stage masterbatch to obtain the second-stage masterbatch;

[0071] Step 3, adding insoluble sulfur IS7020, ordinary sulfur, and accelerator NS to the second-stage masterbatch prepared in step 2, and performing final refining to obtain tire sidewall rubber;

[0072] Among them, in step 1, the mixing time of the first master batch is 110-150s, and the debinding temperature is preferably 160°C; in step 2, the time of the second master batch is 130s-160s, and the debinding tem...

Embodiment 2

[0075] The present embodiment 2 provides the preparation method of the second tire sidewall compound, comprising the following steps:

[0076] Step 1, adding natural rubber and modified butadiene rubber into an internal mixer for masticating to obtain a section of masterbatch;

[0077] Step 2, a section of masterbatch prepared in step 1, with a specific surface area of ​​35m 2 N660 carbon black, active agent, anti-aging agent, and tackifying resin of / g are added to the internal mixer to carry out the second-stage masterbatch to obtain the second-stage masterbatch;

[0078] Step 3, adding insoluble sulfur IS7020, common sulfur, accelerator NS and silane coupling agent Si69 and 1,6 bis(N,N dibenzylthiocarbamoyl disulfide) alkane to the two-stage mother prepared in step 2 In rubber mixing, final refining is carried out to obtain tire sidewall rubber;

[0079] Among them, in step 1, the mixing time of the first master batch is 110-150s, and the debinding temperature is preferab...

Embodiment 3

[0082] Present embodiment 3 provides the preparation method of the 3rd kind of tire sidewall compound, comprises the following steps:

[0083] Step 1, adding natural rubber and modified butadiene rubber into an internal mixer for masticating to obtain a section of masterbatch;

[0084] Step 2, a section of masterbatch prepared in step 1, with a specific surface area of ​​35m 2 N660 carbon black, active agent, anti-aging agent, and tackifying resin of / g are added to the internal mixer to carry out the second-stage masterbatch to obtain the second-stage masterbatch;

[0085] Step 3, adding insoluble sulfur IS7020, common sulfur, accelerator NS and silane coupling agent Si69 and 1,6 bis(N,N dibenzylthiocarbamoyl disulfide) alkane to the two-stage mother prepared in step 2 In rubber mixing, final refining is carried out to obtain tire sidewall rubber;

[0086] Among them, in step 1, the mixing time of the first master batch is 110-150s, and the debinding temperature is preferab...

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Abstract

The invention belongs to the technical field of rubber, and particularly relates to sidewall rubber as well as a preparation method and application thereof. The sidewall rubber material comprises matrix rubber, a filler, an active agent, an anti-aging agent, resin and a vulcanizing agent, the matrix rubber comprises natural rubber and butadiene rubber, the butadiene rubber is rare earth modified butadiene rubber, the tail end of the butadiene rubber is provided with an active group, on one hand, the modified butadiene rubber is good in molecular chain flexibility and heat resistance, and on the other hand, the modified butadiene rubber is not prone to falling off; on the other hand, the butadiene rubber molecular chain with the active group promotes the dispersion of the filler, and the filler with good dispersity can reduce the free movement of the polymer molecular chain in the sidewall rubber material, so that the hysteresis energy loss of the sidewall rubber material is reduced, and the service life of the sidewall rubber material is prolonged. And the endurance mileage of a new energy automobile and a traditional fuel automobile is improved.

Description

technical field [0001] The application belongs to the technical field of rubber, and in particular relates to a sidewall rubber material and its preparation method and application. Background technique [0002] Compared with traditional fuel vehicles, the cruising range of new energy vehicles is shorter. By reducing the rolling resistance of the tires of new energy vehicles, the energy consumption caused by dynamic deformation and frictional heat generation during tire rolling can be reduced, and the cruising range of new energy vehicles can be improved. . [0003] Since the tire tread is in direct contact with the ground, if the dynamic deformation is small, the tire grip effect will be poor. Therefore, in the prior art, the tire is improved by reducing the heat generation of the rubber material of the tire tread, and obtaining low rolling resistance. Tires, thereby reducing the process of energy loss in the form of heat, and improving the mileage of new energy vehicles. H...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08K3/04C08K3/22C08K3/06B60C1/00
CPCC08L7/00C08L9/00B60C1/0025C08K2003/2296C08K2201/014C08K2201/006C08L2201/08C08K3/04C08K3/22C08K3/06
Inventor 周荣杰王志远官声欣曹晖蒋林峰
Owner GUANGZHOU FENGLI RUBBER TIRE
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