Effect of beta-phase on the fracture behavior of dynamically vulcanized PP/EPDM blends studied by the essential work of fracture approach

Tang, Xue-Gang, Bao, Rui-Ying, Yang, Wei, Xie, Bang-hu, Yang, Ming-bo and Hou, Meng (2009) Effect of beta-phase on the fracture behavior of dynamically vulcanized PP/EPDM blends studied by the essential work of fracture approach. European Polymer Journal, 45 5: 1448-1453. doi:10.1016/j.eurpolymj.2009.02.004


Author Tang, Xue-Gang
Bao, Rui-Ying
Yang, Wei
Xie, Bang-hu
Yang, Ming-bo
Hou, Meng
Title Effect of beta-phase on the fracture behavior of dynamically vulcanized PP/EPDM blends studied by the essential work of fracture approach
Formatted title
Effect of β-phase on the fracture behavior of dynamically vulcanized PP/EPDM blends studied by the essential work of fracture approach
Journal name European Polymer Journal   Check publisher's open access policy
ISSN 0014-3057
1873-1945
Publication date 2009-05
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.eurpolymj.2009.02.004
Volume 45
Issue 5
Start page 1448
End page 1453
Total pages 6
Place of publication East Park, Kidlington, Oxford, U.K.
Publisher Pergamon
Collection year 2010
Language eng
eng
Subject C1
091299 Materials Engineering not elsewhere classified
670705 Plastic products (incl. construction materials)
Formatted abstract
The effect of β phase polypropylene (PP), induced by β-nucleating agent (β-NA), on the fracture behavior in dynamically vulcanized thermoplastic elastomers (TPVs) based on dynamically vulcanized PP/ethylene-propylene-diene rubber (EPDM) blend was studied. Differential Scanning Calorimetry (DSC) and Wide-angle X-ray diffraction (WAXD) were employed to study the melting behavior and crystalline structures, and the results indicated that the β-NA induced β phase of PP effectively in TPVs. With the increasing dosage of the β-NA incorporated in, the content of β phase increased while the total crystallinity of the blend kept constant. The fracture behavior of the TPVs with different β phase content was studied with double edge notched tensile loaded specimens (DENT) using the essential work of fracture (EWF) approach. The specific essential work of fracture (we) increased with the increasing of β phase content, indicating that the presence of β phase could effectively enhance the fracture toughness of TPVs.
Keyword Fracture behavior
Falling weight impact
Essential work of fracture (EWF)
β-crystal
Dynamically vulcanized PP/EPDM (TPV)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Thu, 03 Sep 2009, 08:07:05 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering