Go Yen Chemical Goyenchem-GPPS23 General Purpose Polystyrene

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Go Yen Chemical Goyenchem-GPPS23 General Purpose Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS)
Material Notes:	Characteristic: Injection Grade Low Residual Monomer Good Heat Resistance Mold Dimension Stability Excellent Transparency Easy Processing Good Electrical Properties Applications: Stationery, rulers, thumbtacks, petri-dishes, alarm clocks. Cosmetic cases, spray bottles, Christmas lights, toys, home applications. Information provided by Go Yen Chemical
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Physical Properties	Original Value	Comments

Density	1.05 g/cc	ASTM D792
Melt Flow	5.0 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	123	ASTM D785
Tensile Strength, Yield	44.1 MPa @Thickness 3.17 mm	ASTM D638
Elongation at Break	2.0 % @Thickness 3.17 mm	ASTM D638
Flexural Yield Strength	730 kg(f)/cm² @Load 1.00 kg, Thickness 3.00 mm	120°C/h; ASTM D790
Flexural Modulus	3530 MPa @Load 1.00 kg, Thickness 3.00 mm	120°C/h; ASTM D790
Izod Impact, Notched	13.7 J/m	A method, 1/4”×1/2”×5/2”; ASTM D256

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	90.0 °C @Thickness 12.7 mm	Unannealed; ASTM D648
Vicat Softening Point	100 °C @Load 1.00 kg, Thickness 3.00 mm	120°C/h; ASTM D1525

Optical Properties	Original Value	Comments
Haze	0.40 % @Thickness 2.80 mm

Processing Properties	Original Value	Comments
Processing Temperature	160 - 280 °C	Cylinder
Mold Temperature	35.0 - 65.0 °C
Injection Pressure	49.0 - 137 MPa

Descriptive Properties
Composition	200 ppm	Residual SM monomer

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PGOYEN789 / 267097

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