Rubber composition and preparation method thereof, and vulcanized rubber

A technology of rubber composition and vulcanized rubber, which is applied in the field of vulcanized rubber, and can solve problems such as reducing heat generation

Active Publication Date: 2017-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of how to improve the strength of rubber used in tire treads, reduce heat generation, and improve wet skid resistance, and provide a rubber composition and its preparation method and vulcanized rubber

Method used

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  • Rubber composition and preparation method thereof, and vulcanized rubber
  • Rubber composition and preparation method thereof, and vulcanized rubber
  • Rubber composition and preparation method thereof, and vulcanized rubber

Examples

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preparation example Construction

[0015] The invention provides a method for preparing a rubber composition, the method comprising: (1) carrying out first mixing of solution polystyrene butadiene, white carbon black, a surface modifier and optional butadiene rubber to make white carbon Black masterbatch; (2) described white carbon black masterbatch, activator, anti-aging agent, softening agent and optional carbon black are carried out the second mixing to make two-stage masterbatch; (3) described two-stage The masterbatch, accelerator and vulcanizing agent are mixed in the third stage to make the final compound.

[0016] According to the present invention, preferably, the feeding amount of each component in the method is: 60-100 parts by mass of solution polystyrene butadiene rubber, 0-40 parts by mass of butadiene rubber, 50-100 parts by mass of white carbon black, 0-20 parts by mass of carbon black, 2-12 parts by mass of surface modifier, 10-20 parts by mass of softener, 3-8 parts by mass of activator, 0.5-3...

Embodiment 1

[0057] This example is used to illustrate the preparation of the rubber composition provided by the present invention and the vulcanization of rubber.

[0058] Formula (parts by weight, the same below): 60 solution polystyrene butadiene rubber, 40 butadiene rubber, 50 silica, 20 carbon black, Si69 (silane coupling agent) 2, TDAE (softener) 17, zinc oxide 5 (activation agent), stearic acid 1 (activator), sulfur 0.5 (vulcanizing agent), TBBS (accelerator) 4, D (accelerator) 2, 4020 (antiaging agent) 1, PEG4000 (softener) 3.

[0059] Rubber composition preparation process:

[0060] Preparation of white carbon black masterbatch: Add solution-polymerized styrene-butadiene into the internal mixer, set the speed at 80rpm, the initial mixing temperature at 80°C, and the plasticizing time of raw rubber for 0.5min; mix butadiene rubber, white carbon black and Si69 Put it into the internal mixer for the first mixing, the mixing temperature is 150°C, and the mixing time is 7min, and the ...

Embodiment 2

[0067] This example is used to illustrate the preparation of the rubber composition provided by the present invention and the vulcanization of rubber.

[0068] Formula: solution polystyrene butadiene 75, butadiene rubber 25, white carbon black 77, carbon black 8, Si69 (silane coupling agent) 8, TDAE (softener) 8, zinc oxide 5, stearic acid 3, sulfur 1.7 ( Vulcanizing agent), TBBS (accelerator) 1.7, D ​​(accelerator) 1.9, 4020 (antiaging agent) 2, PEG4000 (softener) 6.

[0069] Rubber composition preparation process:

[0070] Preparation of white carbon black masterbatch: Add solution-polymerized styrene-butadiene into the internal mixer, set the speed at 80rpm, the initial mixing temperature at 80°C, and the plasticizing time of raw rubber for 0.5min; mix butadiene rubber, white carbon black and Si69 Add it into the internal mixer for the first mixing, the mixing temperature is 140°C, and the mixing time is 8 minutes to prepare the white carbon black masterbatch;

[0071] Pr...

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Abstract

The present invention discloses a rubber composition and a preparation method thereof, and a vulcanized rubber. The rubber composition preparation method comprises: (1) carrying out first mixing on solution polymerized styrene-butadiene rubber, white carbon black, a surface modifier and an optional cis-polybutadiene rubber to prepare white carbon black rubber master batch; (2) carrying out second mixing on the white carbon black rubber master batch, an activator, an anti-aging agent, a softening agent and an optional carbon black to prepare a second-stage rubber master batch; and (3) carrying out third mixing on the second-stage rubber master batch, an accelerator and a vulcanizing agent to obtain the final mixed rubber. According to the present invention, in the processing process, the effect of the surface modifier can be well provided, the complete interaction between the white carbon black and the polymer can be easily achieved, the strength of the vulcanized rubber prepared through the vulcanization can be improved, the heat generation of the vulcanized rubber can be reduced, and the wet skid resistance of the vulcanized rubber can be improved.

Description

technical field [0001] The invention relates to a method for preparing a rubber composition, a rubber composition prepared by the method, and a vulcanized rubber obtained by further vulcanizing the rubber composition. Background technique [0002] The dynamic hysteresis loss performance of the rubber formula is particularly important to the tire performance. The hysteresis loss increases the energy consumption, heat generation, elasticity, and rolling resistance of the rubber during the dynamic deformation process. Heat generation will also reduce the strength and wear resistance of rubber, causing early damage to tires. Heat generation will also increase the rolling resistance of tires, increasing fuel consumption and carbon dioxide emissions. [0003] CN102382338A discloses an isoprene rubber blend, including isoprene rubber, trans-1,4-polyisoprene, reinforcing filler, in-situ graft modification auxiliary agent, compound rubber and a first additive. [0004] CN103881161A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/02C08K3/36C08K3/04C08K5/09C08K5/18C08J3/22
Inventor 王丽丽解希铭王丽静李静
Owner CHINA PETROLEUM & CHEM CORP
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