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Tech guide Elastomers
May 26 , 2010

By increasing the Asaflex™ content in Asaflex™/GPPS blends, transparent sheet with low temperature impact strength can be obtained, without losing the transparency of GPPS. For applications not requiring transparency, Tufprene™ is more effective for increasing the impact strength.
Comparison of low temperature impact strength (-30°C)

Formulation components Component ratio Sheet thickness
(mm)		 Dart impact strength
(J/m)		 Haze
(%)
Asaflex™ 835/GPPS 50/50 0.30 1 1.3
Asaflex™ 835/GPPS 70/30 0.30 7 0.7
Tufprene™ 125/GPPS 15/85 0.34 10 30
Tufprene™ A/GPPS 15/85 0.34 4 40
Tufprene™ A/HIPS 15/85 0.30 20 --
HIPS 100 0.30 15 --

  • Please note that all data and values are given as typical results obtained with the indicated test methods,
    and not as any product specification or warranty of any nature.
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