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Rectorite/thermoplastic polyurethane nanocomposites. II. Improvement of thermal and oil‐resistant properties
Author(s) -
Ma Xiaoyan,
Lu Haijun,
Lian Guozhengg,
Zhao Jingchan,
Lu Tingli
Publication year - 2005
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.20784
Subject(s) - dynamic mechanical analysis , materials science , nanocomposite , glass transition , thermoplastic polyurethane , thermal stability , composite material , dynamic modulus , thermal decomposition , intercalation (chemistry) , polyurethane , modulus , thermoplastic , polymer , elastomer , chemical engineering , chemistry , organic chemistry , engineering
Abstract Organ‐rectorite/thermoplastic polyurethane (OREC/TPUR) nanocomposites were synthesized via melt intercalation. The dynamic mechanical properties by dynamic mechanical analysis (DMA), thermal and oil‐resistant properties were investigated. The results show that the storage modulus ( E ′), loss modulus ( E ″), and glass‐transition temperature ( T g ) of the nanocomposites have an increase to some extent than those of pure TPUR. The thermal stability of nanocomposites was also studied in detail by thermal gravity analysis (TGA), which was higher than that of pristine TPUR matrix when the content of organic REC is at 2 wt %, and the decomposition temperature at 10% weight loss of OREC/TPUR is greatly increased up to 330°C from 315°C. Oil uptake of the composites is also significantly reduced in comparison with TPUR matrix, which is ascribed to the good barrier effect of nanosheets of OREC. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 1165–1169, 2005