Songhan Plastic Technology Co.,Ltd.
 POLYMER SEARCH

NOVA Chemicals Dytherm® 270R Expandable Polystyrene

Category Polymer , Thermoplastic , Polystyrene (PS) , Expanded Polystyrene (EPS)
Manufacturer NOVA Chemicals
Trade Name Dytherm®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF NOVA Chemicals Dytherm® 270R Expandable Polystyrene.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
This is a special grade consisting of spherical beads of a blend of polystyrene-polyphenylene ether containing pentane as expansion agent, typically used for medium density foam with improved thermal resistance.Applications: This grade is used for medium density foam with wall-thickness generally greater than or equal to 10 mm and with improved thermal resistance. Typical applications include hot-water insulation, pipe-insulation, helmet inner liners, and automotive parts (interior and exterior).Processing of DYTHERM beads on pressurized batch pre-expander is recommended. It can be process on a continuous pre-expander when higher densities are acceptable.This grade should not be used for food contact applications.Information provided by NOVA Chemicals.
Physical Properties Metric English Comments
Bulk Density 0.620 g/cc
0.0224 lb/in³
Density >= 0.0250 g/cc
>= 0.000903 lb/in³
Minimum achievable; Single stage pre-expansion in continuous expander at atmospheric pressure
0.0250 - 0.100 g/cc
0.000903 - 0.00361 lb/in³
Normal molded density assuming cost optimized selection of processing conditions.
Bead Size 0.300 - 0.700 mm
0.0118 - 0.0276 in
Breda Laboratory Analytical Methods 90.30
0.400 - 0.700 mm
0.0157 - 0.0276 in
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 110 °C
230 °F
Modified ISO 2796-1980; Typical maximum temperature to which parts can be exposed short term (1 hour) without significant deformation (<1%).
Chemical Properties Metric English Comments
Styrene Content <= 0.10 %
<= 0.10 %
Residual Styrene Monomer Content per Breda Laboratory Analytical Methods 90.16
Blowing Agent Content >= 5.8 %
>= 5.8 %
Breda Laboratory Analytical Methods 90.18
Copyright © lookpolymers.com All Rights Reserved