Rubber filter process of butyl inner tube

Latex reclaimed rubber and butyl reclaimed rubber in reclaimed rubber are ideal raw materials for producing inner tubes, especially butyl reclaimed rubber that can replace butyl rubber to produce butyl inner tubes; Proportion of butyl reclaimed rubber, butyl rubber/reclaimed rubber combined use When producing inner tubes, not only need to pay attention to the proportion of reclaimed rubber blending, formula design, mixing process, but also a particularly important process - filter rubber.
Butyl inner tube is a typical thin-walled rubber product, and the cleanliness of the compound is particularly high. Once the butyl compound contains impurities, it will not only affect the appearance of the butyl inner tube, but also seriously affect the air tightness of the butyl inner tube. Therefore, the rubber filter is a necessary process in the processing of butyl inner tube. The rubber filter process is the process of filtering the rubber material through the screen to remove impurities. It is carried out in a rubber filter machine. The mechanical impurities inside the reclaimed rubber are filtered out.
In the operation of butyl rubber/reclaimed rubber, the following issues need to be paid attention to:
1. The butyl inner tube compound needs to be preheated before filtering. The temperature of different parts of the rubber filter machine is different during preheating, which needs to be determined by the inner tube processing enterprise according to the actual needs.
2. In order to avoid the early vulcanization of the rubber during the filtration of butyl rubber/reclaimed rubber, compounding agents such as sulfur and accelerators are added after the rubber is filtered; the heat generated when the rubber is filtered is large, and measures must be taken to strengthen the rubber filter. After cooling, the rubber compound after filtration can be cooled down by tablet pressing with an open mill and fully cooled.