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Preparation and physical properties of melt‐blown nonwovens of biodegradable PLA/acetyl tributyl citrate/FePol copolyester blends
Author(s) -
Cui Li,
Zhu ChuanLong,
Zhu Ping,
Tsou ChiHui,
Yang WenJie,
Yeh JenTaut
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36429
Subject(s) - copolyester , materials science , plasticizer , ultimate tensile strength , fourier transform infrared spectroscopy , composite material , ethylene , polyester , chemical engineering , chemistry , organic chemistry , engineering , catalysis
Poly(ethylene glutaric‐ co ‐terephthalate) copolyester “FePol” (FP) together with a kind of citrate ester plasticizer named acetyl tributyl citrate (ATBC) were chosen to prepare PLA/FP/ATBC blends for melt blowing. Only at 250°C and 10 wt % ATBC content, those (PLA x FP y ) a ATBC b specimens are associated with proper rheological properties for processing melt‐blown nonwovens. As suggested by SEM, FTIR and DSC analysis, the compatible behavior between PLA and FP molecules was observed as FP content is equal to or less than 5 wt %. Further morphological analysis of (PLA x FP y ) 90 ATBC 10 specimens reveal that relatively fluffy and well‐formed nonwoven fabrics were found for (PLA x FP y ) 90 ATBC 10 nonwoven specimens melt‐blown at FP contents equal to or lower than 5 wt %. In fact, addition of FP can effectively improve tensile and burst properties of (PLA x FP y ) 90 ATBC 10 nonwovens, wherein their tensile and burst properties approach the maximum values as FP contents reach around 5 wt %. Possible reasons accounting for these melt‐blown properties of (PLA x FP y ) 90 ATBC 10 specimens are proposed. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012