The molding process of PE material in PE tarpaulin

The main materials used by PE tarpaulin manufacturers in production include PE, which has molding processability and good fluidity. Let's take a look at its molding process knowledge. The processing temperature of PE depends mainly on molecular weight, density and crystallinity. Although the processing temperature is not high, the heat capacity of PE melt is large, and its cooling rate has a great influence on the quality and performance of the sheet. In the molten state, PE has a tendency to oxidize, so the contact between the melt and the air and the high temperature residence time should be minimized during the molding process. In addition, the crystallinity of the product depends on the control of the cooling rate during the molding process. Because of the crystallization, the cooling is uniform and the crystallization is uniform. Furthermore, we can understand that the melt of PE is very sensitive to shear rate, and as the shear rate increases, the melt viscosity decreases more.

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