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Effect of morphology on brittle-ductile transition of HPDE/CaCO3 blends

✍ Scribed by Qiang Fu; Guiheng Wang

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 527 KB
Volume: 49
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1993.070491115

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✦ Synopsis

In this paper, the results of a series of investigations of the effect of morphology on the brittle-ductile transition for HDPE/CaC03 blends are summarized ( 1 ) It seems the critical ligament thickness increases with increasing matrix toughness; ( 2 ) the interphase adhesion is very important for the toughness of HDPE/CaC03 blends; ( 3 ) small particles are more effective than large ones; ( 4 ) CaC03 particle aggregation will reduce toughening efficiency;

( 5 ) uniform CaC03 particle size is more effective than heterogeneous size for the toughening of HDPE. It is expected that a polymer with higher modulus as well as higher toughness will be obtained by appropriately controlling the morphology of HDPE/ CaC03 blends.

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