Rubber compound high in safety performance of processing and technology thereof

Abstract

The invention discloses a rubber compound high in safety performance of processing and a technology thereof. The rubber compound is characterized by comprising the following components by weight: a masterbatch component and 9 to 11 parts of a final compound rubber, wherein the masterbatch component comprises 80 to 100 parts of a crude rubber, 50 to 70 parts of white carbon black, 5 to 10 parts of carbon black, 8 to 12 parts of a silane coupling agent, 3 to 5 parts of resin, 5 to 8 parts of zinc oxide, 0.5 to 2.5 parts of stearic acid, 0.1 to 0.5 part of sulphur and other components; the final compound rubber comprises 0.5 to 2.5 parts of rubber master batch and sulphur, and 0.5 to 1.8 parts of an accelerating agent. The rubber compounding component technology comprises the following steps: (1) first section mixing, (2) second section mixing, (3) third section mixing, and (4) final rubber mixing. Compared with the prior art, through the innovation of the rubber mixing technology, the feeding sequence is changed, part of the parts of sulphur is added into masterbatch, the scorching time of a sizing material is prolonged, and the safety performance of the processing of the sizing material is ensured.

Description

technical field [0001] The invention belongs to the technical field of rubber mixing, and in particular relates to a rubber mixing with high processing safety performance and a process thereof. Background technique [0002] Silane coupling agents are usually added to the currently popular silica formulations, which can transform the hydrophilic silica surface into an organic surface, which can avoid the accumulation of silica particles in the system and the rapid thickening of the polymer. Also improves the wettability of organic polymers to reinforcing fillers. Through the connection of carbon bonds, silane can also make the reinforcing fillers and polymers bond firmly, so as to improve the dispersion of silica materials and improve the comprehensive physical properties of rubber compounds. However, the addition of the alkane coupling agent reduces the chemical activity on the surface of the silica material, and a part of the bound vulcanization accelerator is released. In...

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Problems solved by technology

However, the addition of the alkane coupling agent reduces the chemical activity on the surface of the silica material, and a part of the bound vulcanization accelerator is released. In addition, the silane coupling agent also contains sulfur, which will also be released during the vulcanization process. It is pointed out that these two reasons accelerate the vulcanization rate, which leads to early vulcanization of the rubber material, affects the stability and safety of the processing technology of the rubber material, and thus has a negative impact on the quality of semi-finished products.

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