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Citation: HU Yuexin, FENG Yulin, JIANG Wei. High-density Polyethylene Toughened with Calcium Carbonate Particles——Applicability of Wu'Criterion for Brittle-Ductile Transition of Polymer Blends[J]. Chinese Journal of Applied Chemistry, ;2011, 28(5): 500-503. doi: 10.3724/SP.J.1095.2011.00521 shu

High-density Polyethylene Toughened with Calcium Carbonate Particles——Applicability of Wu'Criterion for Brittle-Ductile Transition of Polymer Blends

HU Yuexin ^a,b ,
FENG Yulin ^a,b ,
JIANG Wei ^a,,

1.
a State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
b Graduate School of Chinese Academy of Sciences, Beijing

Corresponding author: JIANG Wei,
Received Date: 6 September 2010
Available Online: 30 October 2010
Fund Project: 吉林省科技发展计划项目(20080506) (20080506)

High density polyethylene was toughened by calcium carbonate(CaCO₃) with different particle sizes.The relationship between critical interparticle distance(ID_c) and CaCO₃ content and particle size was studied at different temperatures.The purpose is to clarify that temperature is one of the important parameters for applicability of Wu's criterion.The results indicate that the ID_c is almost independent of CaCO₃ content and particle size at 17℃,that is,the criterion is applicable to this case.With an increase in the temperature,the results clearly show that ID_c depends on the CaCO₃ particle size at higher temperatures,that is,the criterion is inapplicable at higher temperatures.
- toughening polymer,
- interparticle distance,
- brittle-ductile transition
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