Fracture toughness assessment of poly(ethylene terephthalate) blends with glycidyl methacrylate modified polyolefin elastomer using essential work offracture method

Authors
Mouzakis, DE Papke, N Wu, JS Karger-Kocsis, J
Citation
De. Mouzakis et al., Fracture toughness assessment of poly(ethylene terephthalate) blends with glycidyl methacrylate modified polyolefin elastomer using essential work offracture method, J APPL POLY, 79(5), 2001, pp. 842-852
Citations number
30
Categorie Soggetti
Organic Chemistry/Polymer Science","Material Science & Engineering
Journal title
JOURNAL OF APPLIED POLYMER SCIENCE
ISSN journal
00218995 → ACNP
Volume
79
Issue
5
Year of publication
2001
Pages
842 - 852
Database
ISI
SICI code
0021-8995(20010131)79:5<842:FTAOPT>2.0.ZU;2-Z
Abstract
The static fracture toughness of poly(ethylene terephthalate) (PET) melt bl ended with a modifier containing glycidyl methacrylate (GMA)-grafted ethyle ne-propylene rubber and homopolymerized GMA was studied on injection molded specimens by adopting the essential work of fracture (EWF) method. It was found that the essential and nonessential or plastic work both decrease wit h an increasing amount of modifier (up to 20 wt %) if the PET matrix is amo rphous and nonaged. The scatter in the EWF data for the blend with 10 wt % modifier was found by presuming concurrent mechanisms between microcrystall ization and morphology-dependent cavitation and fibrillation processes. (C) 2000 John Wiley & Sons, Inc.