Polystyrene (PS, GPS) is commonly known as ordinary styrene hard plastic which is transparent and belongs to translucent plastic (with greater density than water, fragility).
The properties of PS include good optical performance 88%-92%, excellent electrical performance, easily molding and processing and good colorability. Its disadvantages include fragility, low temperature of heat-resisting, high requirements for processing and molding conditions (distinct Aging and great sensitivity to heat) weak acid resistance, easy to burn. If there is no fire source and it will burn continually with yellow color, thick black charcoal, blistering, and monosomy.
Viscosity is sensitive to the velocity of shear. With the increase of pressure, melt viscosity […]