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一、概述胶粉未经处理掺到胶料中会使胶料的物理机械性能下降,限制了胶粉在橡胶中的应用,因此,胶粉必须进行活化处理,以提高胶粉的表面活性。掺有普通胶粉胶料的物理机械性能下降的原因,众多学者证实是由于硫磺迁移和促进剂的影响。由于胶粉内存在少量游离硫和促进剂,在硫化过程中活性增大,硫的消耗加快,促使胶粉的外层硫磺向内层迁移,胶料中的硫磺向胶粉外层迁移,因而胶粉周围区域胶料中的硫磺浓度下降,使胶粉
First, an overview of powder mixed with the rubber compound will make the physical and mechanical properties of rubber decreased, limiting the application of rubber powder in the rubber, therefore, the powder must be activated to improve the surface activity of the powder. The reasons for the decline of the physical and mechanical properties of ordinary rubber compounds are confirmed by many scholars due to the influence of sulfur migration and accelerators. As a small amount of free sulfur powder and accelerator within the powder, the activity in the vulcanization process increases, the consumption of sulfur to accelerate, to promote the outer layer of rubber powder to the inner migration of sulfur, the rubber compound in the outer layer of sulfur migration, and thus The sulfur concentration in the rubber compound in the area surrounding the rubber powder drops so that the rubber powder