TPSC Asia Pte Ltd. HIPS 8265

Identification & Functionality

Chemical Family

High-Impact Polystyrene (HIPS),

Styrenics

Polymer Name

High Impact Polystyrene (HIPS)

Plastics & Elastomers Functions

Resin

Technologies

Plastics

Product Families

Plastics — Basic Thermoplastics

Styrenics

Features & Benefits

Materials Features

Good Environmental Stress Crack Resistance (ESCR),

Good Mechanical Properties,

High Ductility

Applications & Uses

Markets

Consumer Goods,

Printing & Packaging

Applications

Consumer Goods — Appliances & Electronics

Consumer Goods — Cold-Chain & Insulation

Printing & Packaging — Packaging

Food & Beverage Packaging

Plastics & Elastomers End Uses

Refrigeration

Plastics & Elastomers Processing Methods

Extrusion

Typical Applications

• Fridge
• Extrusion Sheet requiring High ESCR Properties

Properties

Mechanical Properties

	Value	Units	Test Method / Conditions
Notched Izod Impact Strength	12	kJ/m2	D-256
Tensile Strength at Yield	27	MPa	D-638
Elongation at Break	75	%	D-638
Flexural Modulus	1700	MPa	D-790
Rockwell Hardness	R78	—	D-785

Typical Properties

	Value	Units	Test Method / Conditions
Notched Izod Impact Strength	12	kJ/m2	D-256
Tensile Strength at Yield	27	MPa	D-638
Elongation at Break	75	%	D-638
Flexural Modulus	1700	MPa	D-790
Rockwell Hardness	78	Scale R	D-785

Thermal Properties

	Value	Units	Test Method / Conditions
Vicat Softening Point 10N (T increase = 50 °C/h)	372	K	D-1525
Heat Distortion Temperature	354	K	D-648
Coefficient of Linear Thermal Expansion (10-5)	0.00905	m/K	D-696

Electrical Properties

	Value	Units	Test Method / Conditions
Dielectric Strength	150000	kV/m	D-149
Surface Resistivity	Min. 10e+13	Ohms -1	—

Miscellaneous Properties

	Value	Units	Test Method / Conditions
Density	1040	kg/m3	D-792
Mold Shrinkage	0.4 - 0.7	%	D-955
Water Absorption	0.07	%	D-570

Injection Molding

	Value	Units	Test Method / Conditions
Barrel Temperature, Zone 1	170 - 180	°C	—
Barrel Temperature, Zone 2	180 - 220	°C	—
Barrel Temperature, Zone 3	210 - 240	°C	—
Barrel Temperature, Zone 4	210 - 240	°C	—
Barrel Temperature, Nozzle	210 - 240	°C	—

Rheological Properties

	Value	Units	Test Method / Conditions
Melt Flow Index (200 °C - 5 kg) 1	0.0035	kg/ 10 min	D-1238
Spiral Flow at 220°C	0.44	m	D-3123