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Ultraviolet light aging properties of PVC/CaCO 3 composites
Author(s) -
Liu Hai,
Dong Lijie,
Xie Haian,
Wan Lipeng,
Liu Zhukai,
Xiong Chuanxi
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.37595
Subject(s) - materials science , composite material , ultimate tensile strength , composite number , scanning electron microscope , ultraviolet , fourier transform infrared spectroscopy , ultraviolet light , dispersion (optics) , chemical engineering , physics , optoelectronics , optics , engineering
The ultraviolet radiation aging behaviors of PVC/CaCO 3 and PVC/CaCO 3 /macromolecular modifier composites were studied through whiteness measurement, Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, scanning electron microscopy, and mechanical properties test. It was found that nano‐CaCO 3 particles used as ultraviolet light screening agents could significantly enhance the antiaging properties of PVC materials. Due to the macromolecular modifier coated on nano‐CaCO 3 particles, the compatibility of nano‐CaCO 3 and PVC matrix was improved, resulting in uniform dispersion of nano‐CaCO 3 in PVC matrix. Therefore, the PVC/CaCO 3 /MP composite exhibited better antiaging properties than PVC/CaCO 3 composite. After 12 h of ultraviolet irradiation, the tensile strength retention, elongation at break retention, and impact strength retention of PVC/CaCO 3 /MP composite were 79.5%, 74.5%, and 75.3%, which were much higher than that of neat PVC and PVC/CaCO 3 composite. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013