Environment-friendly low-smoke flame-retardant rubber composition and preparation method thereof

Abstract

The invention discloses an environment-friendly low-smoke flame-retardant rubber composition and a preparation method thereof, and the rubber composition comprises the following raw materials: 30-50 parts of natural rubber, 40-50 parts of butadiene styrene rubber, 1-6 parts of a flame retardant, 2-7 parts of a vulcanizing agent, 1-9 parts of an accelerant, 1-5 parts of an anti-aging agent, 2-7 parts of a stabilizer and 4-6 parts of a flexibilizer. The flame retardant is prepared by mixing magnesium hydroxide, tributyl phosphate and tricresyl phosphate according to a ratio of (1-7): (2-6): (1-5), and the vulcanizing agent is prepared by mixing sulfur powder, dicumyl peroxide and dicumyl peroxide according to a ratio of (4-8): (1-5): (6-12). The accelerant is prepared by mixing tetramethyl thiuram disulfide, tetramethyl thiuram monosulfide and zinc dibutyldithiocarbamate according to the ratio of (2-6): (1-8): (1-6), carbon black ash added in a traditional rubber composition is removed, and then the flexibilizer is used for reinforcement, so smoke generated in the combustion process of rubber can be greatly reduced, and the service life of the rubber composition is prolonged. Meanwhile, the flame retardant is added, so that the flame retardant property of the rubber composition can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of rubber compositions, in particular to an environmentally friendly low-smoke flame-retardant rubber composition and a preparation method thereof. Background technique [0002] Rubber (Rubber) refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer, its glass transition temperature (T g) is low, and its molecular weight is often very large, greater than hundreds of thousands. [0003] However, the rubber prepared by the existing technology center has a single function and does not have the effect of flame retardancy. At the same time, when it is burned, the rubber will emit black smoke. Therefore, we propose an environmentally friendly low-smoke flame-retardant rubber composition and ...

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Problems solved by technology

[0003] However, the rubber prepared by the existing technology center has a single function and does not have the effect of flame retardancy. At the same time, when it is burned, ...

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