Adopting a three-layer co extrusion blow molding method, the inner, outer, and middle layers are made of high-density polyethylene (PE-HD)/low-density polyethylene (PE-LD) blend ratio and various additives. Intermediate acid milling amine and silica. Made by blowing. The thickness of a single layer is around 20 threads.
Surface embossing molding. The usage conditions should ensure adhesion with rubber raw materials. We also need to ensure good peel strength. No adhesion.
The influence of peeling between film and tire raw film and the preservation status of raw rubber was discussed, and the effects of recycled materials and filler addition in the core layer on the strength of the film were investigated
After multiple formula experiments. The surface layer is blended with PE-HD and PE-LD in a ratio of 1/1 to 2/1, and then 1.5% to 2.0% (mass fraction, the same below) of anti sticking masterbatch and 3.0% to 3.5% of anti ultraviolet masterbatch are added. The core layer is made of 30% high-strength metallocene polyethylene mixed with 20% linear low-density polyethylene, 40% recycled material, and 10% filler material, which can produce a low-cost tire film with both isolation and preservation functions
