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Morphology and properties of PET/PA‐6/SiO 2 ternary composites
Author(s) -
Qu Cheng,
Yang Hong,
Liang Dong,
Cao Wen,
Fu Qiang
Publication year - 2007
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.25690
Subject(s) - materials science , composite material , compatibilization , polyamide , morphology (biology) , glass transition , ultimate tensile strength , izod impact strength test , ternary operation , crystallization , modulus , dispersion (optics) , nanocomposite , copolymer , polymer blend , polymer , chemical engineering , physics , optics , biology , computer science , engineering , genetics , programming language
A kind of hydrophilic nano‐SiO 2 was applied to poly(ethylene terephthalate)/polyamide‐6 (PA‐6) blends. Melt‐blended composites were prepared at various component ratios and different nano‐SiO 2 levels. Mechanical, morphological, dynamic mechanical, and thermal tests were carried out to characterize the properties, morphology, and compatibilization of the composites. Increased impact strength, tensile strength, and modulus were observed by adding nano‐SiO 2 particles in the blends. The nano‐SiO 2 particles were found to be preferentially dispersed in PA‐6, resulting in an increase of glass transition temperature and crystallization of PA‐6. The mechanism of morphology and properties changes was discussed based on the selective dispersion of nano‐SiO 2 particles in the blends. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 2288–2296, 2007