Soluble teflon processing device and processing technology thereof

Abstract

The invention discloses a soluble teflon processing device and a processing technology thereof. The soluble teflon processing device comprises an extruder, a mold outlet of the extruder is connected with a vacuum mold, the output end of the vacuum mold is connected with a water tank, and the other side of the water tank is provided with a take-up machine; the soluble teflon processing device further comprises a machine frame used for bearing the extruder, the vacuum mold, the water tank and the take-up machine; and a multi-stage temperature control structure is arranged on the extruder, and the temperature of the multi-stage temperature control structure is distributed from low to high in the output direction of the extruder. The soluble teflon processing device and the processing technology thereof have the beneficial effects that sectional temperature control is adopted in the extruder, so that the decomposition phenomenon caused by too fast local temperature rise when soluble polytetrafluoroethylene is heated is avoided, and the stability of the extrusion process is improved; and the high extrusion temperature is adopted, the viscosity of the soluble polytetrafluoroethylene is reduced, the critical shear rate of the soluble polytetrafluoroethylene is increased, the phenomena of rough surface, no gloss or layering are eliminated in the extrusion process, and the extrusion quality of the soluble polytetrafluoroethylene is improved.

Description

technical field [0001] The invention relates to the technical field of Teflon processing, in particular to a soluble Teflon processing device and a processing technology thereof. Background technique [0002] Teflon is polytetrafluoroethylene, and its products are often called "non-stick coatings". It is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. Teflon has the characteristics of acid and alkali resistance and can maintain its mechanical properties in various organic solvents, and is almost insoluble in all solvents. At the same time, it has the characteristics of high temperature resistance and extremely low friction coefficient, so it is often used for lubrication, and it has also become an ideal coating for the inner layer of non-stick pans and water tanks. Soluble PTFE has the same excellent properties as PTFE, and has better mechanical strength at 250 ° C. It has excellent stress crack resistance and can be used to ma...

AI Technical Summary

Problems solved by technology

However, when soluble PTFE is processed, because its viscosity decreases with the increase of the shear rate, if the shear rate exceeds the limit, the product is prone to rough surface, dullness or layering, which seriously affects the quality of the product.

Images