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Properties of poly(butylene terephthalate)/functionalized polyolefin blends
Author(s) -
Kang TaeKyu,
Kim Yang,
Kim Guehyun,
Cho WonJei,
Ha ChangSik
Publication year - 1997
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11703
Subject(s) - materials science , maleic anhydride , polyolefin , copolymer , composite material , differential scanning calorimetry , acrylate , izod impact strength test , ultimate tensile strength , scanning electron microscope , ethylene , ethylene vinyl acetate , glass transition , polymer chemistry , polymer , organic chemistry , catalysis , physics , chemistry , layer (electronics) , thermodynamics
The object of this study was to investigate the physical properties and morphology of melt‐mixed blends containing poly(butylene terephthalate) (PBT) with several functionalized polyolefins such as ethylene/vinyl acetate copolymer (EVA), EVA‐g‐maleic anhydride (EVA‐g‐MAH), EVA‐g‐ACID, EVA‐g‐ACID/ACRYLATE, ethylene methacrylate‐g‐MAH (EMA‐g‐MAH), ethylene/ethyl acrylate copolymer (EEA) and an ethylene ionomer. Special focus was made on PBT/EVA‐g‐MAH and PBT/EMA‐g‐MAH blends compared with PBT/EVA and PBT/EMA blends. Blends were prepared in a counter‐rotating twin‐screw extruder. Mechanical and thermal properties, glass transition temperature and morphology were examined using a tensile testing machine, differential scanning calorimeter (DSC), dynamic mechanical analysis and Scanning Electron Microscope (SEM). PBT/EVA‐g‐MAH and PBT/EMA‐g‐MAH blends exhibited better impact strength than PBT/EVA and PBT/EMA blends because of the larger interfacial adhesion of EVA‐g‐MAH and EMA‐g‐MAH with PBT than EVA and EMA.