(1) Insoluble sulfur exists in a dispersed state in rubber, ensuring that the rubber material does not frost and has good viscosity, while also ensuring the appearance quality of light colored products.
(2) Insoluble sulfur is uniformly dispersed in the rubber material, effectively resisting the aggregation of sulfur and reducing the tendency of burning during the storage process of the rubber material.
(3) Insoluble sulfur ensures that the rubber material does not spray frost during storage, maintaining uniform performance of the rubber material components. Prevent contamination of products and molds, and remove the coating process added to overcome frost spraying, providing conditions for production linkage.
(4) Insoluble sulfur prevents rubber from migrating between adjacent layers. Especially in the rubber materials of cisplatin and butadiene rubber, the migration rate of ordinary sulfur is very high, which can be avoided by adding insoluble sulfur.
(5) Insoluble sulfur shortens the vulcanization time. After reaching the vulcanization temperature, it has an activation stage, namely chain depolymerization, which accelerates the vulcanization rate and reduces the amount of sulfur used, which is beneficial for improving the aging performance of the product.