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Why are there disadvantages to making with conductive pS plastic?

Time: 2019-09-29 09:17 Author: admin Hits: Times

Why are there disadvantages to making with conductive pS plastic?

Analysis of the disadvantages of PS plastic injection products and solutions:

The shortcomings of PS plastic injection products easily occur in the area close to the gate, the edge of the hole, the periphery of the insert, the convex corner and so on.

The material should be sieved before baking, and the small particles and powder in between. Because of these small particles, the dust has a large specific surface area, high heat absorption, and poor thermal conductivity. At higher temperatures, differentiation is prone to occur, and then gaseous substances are released.

Conductive pS plastic

These gaseous substances are extremely finely dispersed in a part of the molten material, making the part white, and injection molding in the plastic part constitutes a white smoke-like area. If the accumulation enters, when the machine swells sometimes, it will form small bubbles in the product.

Polystyrene has a wide molding temperature range and is easy to handle. In order to improve production efficiency, the material temperature can be increased to 190-215 ° C. However, during high-temperature operation, some low-molecular polymers in polystyrene PS plastic may differentiate, and may also induce other low-volatile substances to escape. Gaseous materials enter the cavity with the melt, affecting the smoothness of the part.

Mottles, silver streaks, white smoke, and small air bubbles appear on the transparent parts.

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