Self-vulcanized rubber and preparation method thereof

Abstract

The invention relates to self-vulcanized rubber which comprises 1 part of mixed rubber A and 1 part of mixed rubber B, wherein the mixed rubber A comprises the components in parts by weight: 83 parts of national standard 1# natural rubber, 40-50 parts of resin 2402, 20-25 parts of accelerant, 20-30 parts of di-n-butyl amine, 5-8 parts of anti-aging agent D and 1700 parts of 120# solvent gasoline; and the mixed rubber B comprises the components in parts by weight: 83 parts of national standard 1# natural rubber, 5-8 parts of rubber powder, 2-4 parts of adhesive RE, 2-4 parts of adhesive RH, 2-3 parts of zinc oxide, 3-5 parts of sulphur and 1700 parts of 120# solvent gasoline. The mixed rubber A and the mixed rubber B are arranged in a container and evenly stirred, and plasticine-like gum paste can be formed for standby application. The self-vulcanized rubber has the beneficial effects that the self-vulcanized rubber can be prepared immediately when needing to be used based on the mixed rubber A and the mixed rubber B, so that the time, the labor and the energy are saved; due to sulfidizing treatment, the self-vulcanized rubber is smooth in surface and good in smoothness; and the self-vulcanized rubber is good in plasticity, good in bonding property and convenient to use.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a self-vulcanizing rubber and a preparation method thereof. Background technique [0002] Self-vulcanizing rubber is also called normal temperature and pressure vulcanizing rubber. Vulcanization refers to the chemical reaction of rubber macromolecules with cross-linking agent under heating conditions, and the process of cross-linking into a three-dimensional network structure. The vulcanized rubber is called vulcanized rubber. After the rubber is vulcanized, a shaped rubber product with practical value can be obtained. Due to the poor thermal conductivity of rubber, the general vulcanization process is carried out at a high temperature of 160-180°C, and the edge of the product close to the hot plate is often scorched. It takes a long time for the heat to transfer to the center of the product, and consumes a lot of energy. [0003] On the other hand, if rubber products are damage...

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Problems solved by technology

Although this method is fast and simple to repair, it has the following disadvantages: ①The cost of the patch is high, which is more than 5-10 times that of ordinary patches; There is only a small amount of vulcanization, and the cross-linking density is small, so the pulling force is not enough; there is basically no vulcanization pressure, and the patch is not tightly bonded. Some low-quality patches are simply glued on, and cannot repair large wounds. They are only suitable for Repair of small wounds; ③Larger wounds need to be repaired twice, once to repair the wound, and then apply the patch after the wound is repaired, which is troublesome and unreliable to operate; ④Vulcanized glue is highly toxic and harmful to the body

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