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|Title: ||Effect of blending sequence on the impact strength of PET/PC blends|
|Authors: ||Wu, Jing-Shen|
Mai, Y. W.
|Keywords: ||Impact strength|
Blending sequence effect
|Issue Date: ||1998 |
|Citation: ||Fracture and strength of solids : proceedings of the third International Conference on Fracture and Strength of Solids, Hong Kong, 8-10 December 1997, Trans Tech Pub., Uetikon-Zuerich, Switzerland, 1998, Part 2, p. 787-792|
|Abstract: ||The impact behavior of PET/PC/E-GMA-MA blends at different temperatures was studied. The relationships between the processing conditions, morphology and mechanical properties were discussed. It was revealed that the toughening effect due to the E-GMA-MA copolymer appears at just above its glass transition temperature, and the blending sequence has a strong influence on the morphology and impact toughness of the blends. The brittle-ductile transition of the blends made under optimum processing conditions takes place at a relatively low temperature and with a low elstomer content. The major toughening mechanisms were identified to be massive cavitation plus matrix shear yielding. Both SEM and TEM were employed to study the morphology and toughening mechanisms.|
|Description: ||This work is supported by Hong Kong Research Grants Council (Project No. HKUST810/96E).|
|Appears in Collections:||MECH Conference Papers|
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