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- Title
BRITTLE-DUCTILE TRANSITION OF PP/EPDM/ELASTOMERIC NANO-PARTICLE TERNARY BLENDS.
- Authors
Xiao, Yan; Cao, Wen; Wang, Ke; Tan, Hong; Zhang, Qin; Du, Rong-ni; Fu, Qiang
- Abstract
The brittle-ductile transition is a very important phenomenon for polymer toughening. Polypropylene (PP) is often toughened by using rubbers, e.g., ethylene-propylene diene monomer (EPDM) has often been used as a modifier. In this article, the toughening of PP by using a new kind of rubber, known as elastomeric nano-particle (ENP), and the brittle-ductile transition of PP/EPDM/ENP was studied. Compared to PP/EPDM binary blends, the brittle-ductile transition of PP/EPDM/ENP ternary blends occurred at lower EPDM contents. SEM experiment was carried out to investigate the etched and impact-fractured surfaces. ENP alone had no effect on the impact strength of PP, however, with the same EPDM content, PP/EPDM/ENP ternary blends had smaller particle size, better dispersion and smaller interparticle distance in contrary to PP/EPDM binary blends, which promoted the brittle-ductile transition to occur earlier.
- Subjects
ELASTOMERS; POLYMERS; BRITTLENESS; DUCTILITY; ETHYLENE
- Publication
Chinese Journal of Polymer Science (World Scientific Publishing Company), 2006, Vol 24, Issue 4, p389
- ISSN
0256-7679
- Publication type
Article
- DOI
10.1142/S0256767906001436