Denka STYROL MW1 Polystyrene

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Denka STYROL MW1 Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Molded, Unreinforced
Material Notes:	"DENKA SYTROL MW" is a well-balanced polystyrene (PS) resin, with a high tensile strength as well as good moldability. Overturning the traditional understanding that PS resin is "hard and brittle," this products applications have been expanded to include large packaging cases (and the like), advancing the world of PS resin, and becoming a synonym for ultra-strong PS. Applications Recording media-related items like CD jewel cases, and videotape or audiocassette cases, etc. Refrigerator trays Pet cages Miscellaneous goods/toys Food packaging, etc.
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Physical Properties	Original Value	Comments

Density	1.05 g/cc	ISO 1183
Melt Flow	1.9 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D1238
	1.9 g/10 min @Load 5.00 kg, Temperature 200 °C	ISO 1133
Spiral Flow	30.5 cm	200°C; DENKA method
	42.5 cm	240°C; DENKA method

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	77	ISO 2039-2
Tensile Strength at Break	46.0 MPa	ISO 527-2
Elongation at Break	<= 3.0 %	ISO 527-2
Flexural Strength	51.0 MPa	ASTM D790
	101 MPa	ISO 178
Flexural Modulus	3.30 GPa	ISO 178
Izod Impact, Notched	18.0 J/m @Temperature 23.0 °C	ASTM D256
Charpy Impact, Notched	0.300 J/cm² @Temperature 23.0 °C	ISO 179-2

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	72.0 °C	ISO 75-2
Vicat Softening Point	92.0 °C	50N; ISO 306
Flammability, UL94	HB @Thickness 1.50 mm

Processing Properties	Original Value	Comments
Rear Barrel Temperature	210 - 240 °C	H-3
Middle Barrel Temperature	200 - 230 °C	H-2
Front Barrel Temperature	190 - 210 °C	H-1
Nozzle Temperature	210 - 240 °C
Mold Temperature	38.0 - 60.0 °C
Injection Pressure	5000 - 30000 psi
Back Pressure	1000 - 4000 psi

Descriptive Properties
Falling Weight Test, g/cm	50/37

**
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PDENK000 / 29664

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