Common characteristics of transparent plastic material

A transparent plastic properties

Transparent plastic bucket must first have a high transparency, secondly to have a certain strength and wear resistance, impact energy, better heat-resistant parts, excellent chemical resistance to water absorption is smaller, the only way in use, to meet the transparency the requirements of long-term change, the table below lists, compare pmma, pc and pet performance.

(1) because of variety, it's just taking the average, the actual data of different varieties are different.

(2) pet data (machinery) data through after stretching.

Second, transparent plastic injection molding process should pay attention to common problems

Transparent plastic barrel due to high light transmittance, a necessary requirement of plastic products surface quality demanding, can not have any markings, pores, whitening. Halo fog, black spots, discoloration, poor gloss and other defects, and thus the entire injection molding process for raw materials and equipment. Mold, and even product design, great attention must be made strict and even special requirements. Second, because of transparent plastic, mostly high melting point, poor mobility, so as to ensure the surface quality of the products, often at high engine temperature, injection pressure, injection speed and other parameters for fine adjustments to make when both full of plastic injection molding, without It will produce internal stress and cause deformation and cracking.

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