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Difference between PS material and PC material

- Dec 06, 2017 -

Difference between PS material and PC material

Polystyrene (PS)


 Non-crystalline polymer, shrinkage after molding is less than 0.6

Low-density characteristics of the production capacity of more than 20% to 30%


 1, low cost

2, transparent and stainable

3, dimensional stability characteristics

4, high rigidity



 1, high fragmentation

2, poor solvent resistance

3, temperature difference


 Stationery, toys, electrical supplies shell, styrofoam tableware

Polycarbonate (PC)

Feature of non-crystalline thermoplastic

Advantages 1, with high strength and elastic modulus, high impact strength, wide temperature range

2, a high degree of transparency and free dyeing

3, H.D.T. High

4, good fatigue resistance

5, good weather resistance

6, excellent electrical characteristics

7, tasteless odorless harmless to human health in line with health and safety

8, forming shrinkage is low, the size of good stability

Disadvantages Molded product design is not easy to produce internal stress problems

Use of electronic appliances: CD film, switches, home appliances shell, signal tube, telephone

Automotive: bumper, distributor, safety glass

Industrial Parts: Camera Body, Machine Case, Helmet, Goggles, Safety Lenses

In addition, PS has a light transmittance of 92% and a PC of 88%. PC toughness is many times better than PS, PS is brittle, it is easy to break off, the PC's toughness is much higher; PC thermal deformation temperature reached 120 degrees, PS was only 85 degrees. Liquidity is also a lot of difference between the two, PS liquidity much better than the PC, PS can choose a point gate, PC basically use a large gate shape.

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