The transparency of PTFE film is a reflection of the crystallinity of the polymer. The lower the crystallinity, the better the transparency.
Transparency can be controlled through craftsmanship.
PTFE dispersion resin in polytetrafluoroethylene film is a polymer with high crystallinity.
The crystallinity of the newly produced resin raw material is more than 90%, which is the highest crystallinity among all plastics. During the sintering and melting process, the regular crystalline arrangement gradually disappears; when it begins to cool, the regular crystalline arrangement gradually disappears. The molecular arrangement begins again, that is, the formation of crystals.
The cooling rate determines the degree of crystallinity. The slower the cooling rate, the higher the crystallinity.
In order to reduce the crystallinity of the resin, quenching is usually used.
The lower the crystallinity, the lower the hardness of the product and the better the transparency.
When producing PTFE dispersion hose, in order to reduce the crystallinity of the resin, quenching treatment is usually used.
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