Causes Of Oil Leakage From Soft Rubber Extruded Toys

The reason for the TPR production process. TPR is originally a blend of naphthenic oil/PP/SBS. The molecular weight of SBS determines the amount of filling. If the flash point of naphthenic oil is too low or the molecular weight distribution of the oil is too wide, it is easy to break out. In the production process, many factories do not have a thermal mixing process, but are directly physically mixed into the screw extruder, so that the mixed product is also prone to oil leakage.