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Preparation and properties of compatibilized PVC/SMA‐ g ‐PA6 blends
Author(s) -
Dong Lijie,
Xiong Chuanxi,
Wang Tao,
Liu Dan,
Lu Shengjun,
Wang Yinzhen
Publication year - 2004
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.20724
Subject(s) - sma* , materials science , crystallinity , compatibilization , composite material , copolymer , nylon 6 , fourier transform infrared spectroscopy , izod impact strength test , morphology (biology) , polymer blend , polymer , chemical engineering , ultimate tensile strength , combinatorics , genetics , mathematics , biology , engineering
The morphology and mechanical properties of PVC/SMA‐ g ‐PA6 blends were investigated in this paper. Graft to polymer SMA‐ g ‐PA6 was prepared via a solution graft reaction between SMA and PA6. FTIR test evidences the occurrence of the graft reaction between SMA and PA6. DSC analysis shows that SMA‐ g ‐PA6 has a lower melting point of 187°C, which may result in a decrease in crystallinity of PA6 and thus enable efficient blending of SMA‐ g ‐PA6 and PVC. Compatibilization was evidenced by the dramatic increase in mechanical properties, the smaller particle size and finer dispersion of PA6 in PVC matrix, and, further, a cocontinuous morphology at 16 wt % SMA‐ g ‐PA6 content. SMA‐ g ‐PA6 from the solution graft reaction can toughen and reinforce PVC material. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 432–439, 2004