The basic characteristics of plastic materials of polystyrene (PS or GPPS)

Polystyrene (PS or GPPS), commonly known as "hard rubber", is a non-crystalline plastic, and its main uses are as follows:

Commonly used in stationery, daily necessities, various instrument housings, skeletons, instrument indicators, lampshades, car lampshades, chemical acid storage tanks, acid conveying tanks (especially hydrofluoric acid), chemical instrument parts, and telecommunications parts. Due to high transparency, Can be used as optical instrument parts and lenses.

Its main properties are as follows:

1. Transparent, good gloss, easy to color.

2. Poor acid resistance, easy to stress cracking when encountering acid, alcohol and oil ester.

3. The quality is brittle and not resistant to impact, and the surface is easy to scratch. The packaging requirements of plastic parts are high.

4. Soluble in organic solvents (acetone, trichloroethylene, etc.), easy to spray and color.

5. The molding shrinkage is about 0.2%-0.8% (usually 0.5%), and the dimensional stability is good.