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Rubber composition for sole, and vulcanized rubber, preparation method and applications thereof

A technology of composition and vulcanizing agent, which is applied in the field of rubber, can solve the problems of low rubber strength and poor dynamic flexural performance, and achieve the effects of improving wear resistance, increasing strength, and improving flexural resistance

Active Publication Date: 2019-06-25
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 overcome the defects that the rubber composition containing white carbon black provided by the prior art is not high in rubber strength, wear resistance and dynamic flexural performance when it is used to prepare shoe soles, and provides a new Rubber composition and preparation method of vulcanized rubber

Method used

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  • Rubber composition for sole, and vulcanized rubber, preparation method and applications thereof
  • Rubber composition for sole, and vulcanized rubber, preparation method and applications thereof

Examples

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preparation example Construction

[0053] In order to specifically illustrate the method for preparing vulcanized rubber of the present invention, a preferred embodiment is provided below for illustration:

[0054] (1) Put the rubber matrix in the internal mixer, the speed is 50-120rpm, the initial mixing temperature is 70-90°C, and the raw rubber mastication time is 0.1-1min; then the mixture containing the initiator and Component A of the rubber modifier is introduced into the above-mentioned internal mixer for the first mixing to obtain a section of masterbatch;

[0055] (2) Add the one-stage masterbatch and component B containing white carbon black, activator, anti-aging agent, carbonate and softener into the internal mixer for the second mixing, discharge and park for 3-5 hours , to obtain the second-stage masterbatch;

[0056] (3) Set the speed of the internal mixer to 50-100rpm, and the initial mixing temperature to 25-50°C. After masticating the second-stage masterbatch for 0.5-1.5 minutes, add compone...

Embodiment 1

[0086] Rubber composition formula: 100 parts by weight of butadiene rubber, 40 parts by weight of white carbon black, 0.05 parts by weight of DCP, 2 parts by weight of γ-(2,3-epoxypropoxy)propyltriethoxysilane, 2 parts by weight of carbonic acid 8 parts by weight of zinc, 10 parts by weight of 10# white oil, 5 parts by weight of stearic acid, 1 part by weight of sulfur, 3 parts by weight of accelerator DM, 1.5 parts by weight of accelerator TMTD, 1.5 parts by weight of accelerator D, anti-aging Agent 264 is 0.5 parts by weight.

[0087] Preparation process of vulcanized rubber:

[0088] (1) Perform the first mixing of rubber matrix, initiator and rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed to 80rpm, and the initial mixing temperature to 80°C , the raw rubber masticating time is 0.5min; add the initiator and rubber modifier to the above-mentioned internal mixer for mixing, the mixing tem...

Embodiment 2

[0094] Rubber composition formula: 100 parts by weight of butadiene rubber, 50 parts by weight of white carbon black, 0.08 parts by weight of BPO, 8 parts by weight of γ-(2,3-epoxypropoxy)propyltrimethoxysilane, zinc carbonate 5 parts by weight, 18 parts by weight of 10# white oil, 3 parts by weight of stearic acid, 4 parts by weight of sulfur, 4 parts by weight of accelerator DM, and 2 parts by weight of antioxidant 264.

[0095] Preparation process of vulcanized rubber:

[0096] (1) Perform the first mixing of rubber matrix, initiator and rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed to 80rpm, and the initial mixing temperature to 80°C , the raw rubber masticating time is 0.5min; add the initiator and rubber modifier to the above-mentioned internal mixer for mixing, the mixing temperature is 140°C, and the mixing time is 5min, to obtain a section of masterbatch;

[0097] (2) Add the one...

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Abstract

The invention relates to the field of rubbers, and discloses a rubber composition for sole, and a vulcanized rubber, a preparation method and applications thereof, wherein the composition comprises arubber matrix, an initiator, a rubber modifier, white carbon black, carbonate, an activator, an anti-aging agent, a softener, a promoter and a vulcanizing agent, the rubber matrix is a cis-polybutadiene rubber, and the rubber modifier is an organosilane coupling agent represented by a general formula (RO)3SiCH2CH2CH2OCH2-X. According to the present invention, the vulcanized rubber prepared by using the composition of the present invention has advantages of strength improving, wear resistance, dynamic fatigue improving and other excellent comprehensive performances in the as the rubber for preparing sole.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a rubber composition used for shoe soles, a method for preparing vulcanized rubber, and the vulcanized rubber prepared by the method and the application of the vulcanized rubber in preparing shoe soles. Background technique [0002] The aesthetics of the sole directly affects the aesthetics of the whole shoe. Many international brands produce more soles, giving people a high-end and fashionable feeling. [0003] In the prior art, the soles are mostly produced with materials such as PVC, TPR, TPU, etc. These materials are inferior to rubber soles in terms of comfort and slip resistance. [0004] In the prior art, white carbon black, as the main reinforcing filler, is widely used in footwear products. It can not only make the sole have good wear resistance, anti-skid performance and upper adhesion performance, but also can process out Colored tendon soles are widely used in light-colored and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L91/06C08K13/02C08K3/36C08K5/14C08K3/26C08K5/09C08K3/06A43B13/04
Inventor 解希铭王丽丽
Owner CHINA PETROLEUM & CHEM CORP