Low compression ratio mainly produces low-density raw material belts and elastic products; medium compression ratio mainly produces high-density raw material belts, extruded tubes, etc. Can not eventually become a useful product, in fact, the processing process of the material is the process of oriented fiberization of the material.

Dispersing resin is an important variety of polytetrafluoroethylene, it is the product of TFE monomer in the medium, dispersed into an emulsion state by the emulsifier for polymerization.. The processing of dispersed resin is carried out with reference to paste extrusion. Usually the extrusion processing is carried out with additives, which is generally referred to as paste extrusion, so The additives added are generally hydrocarbon-containing oils, which are used as additives for extrusion to provide lubrication and reduce molding pressure.

It is a white powder resin with a bulk density of about 500 g/L and an average particle size of 450 to 550 m. According to customer requirements and internationally popular classification methods, generally based on the compression ratio, it is divided into low compression ratio (less than 500:1), medium compression ratio (1000:1 500:1), and high compression Ratio (more than 1000:1).; high compression ratio mainly produces thin-walled small-diameter pipes, Wire and cable, etc.

Under pressure, it will agglomerate into agglomerates; secondly, during screw extrusion, the raw material is subjected to non-directional force, which makes the material produce a non-directional PTFE adhesive tape Manufacturers fiber form, and the material cannot be combined to form a continuous extrusion process. There are two reasons: first, the dispersing resin is very soft. Spiral extrusion is not suitable for dispersing resins