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Preparation of poly(butyl acrylate)‐poly(methyl methacrylate) (core‐shell)/phosphor composite particles and its application in PVC matrix
Author(s) -
Chen Tonghua,
Xu Peng,
Luo Yongyue,
Jiang Long,
Dan Yi,
Zhang Li,
Zhao Kun
Publication year - 2009
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.30472
Subject(s) - materials science , phosphor , composite number , methyl methacrylate , fourier transform infrared spectroscopy , polymer , composite material , polyvinyl chloride , acrylate , butyl acrylate , thermogravimetric analysis , emulsion polymerization , polymer chemistry , chemical engineering , polymerization , copolymer , optoelectronics , engineering
Luminescent poly(vinyl chloride) (PVC) plastics filling with long afterglow phosphor (SrAl 2 O 4 : Eu 2+ , Dy 3+ ) were prepared via melt blending. To improve the dispersion degree of the phosphor particles and endow the compatibility with PVC matrix, SrAl 2 O 4 : Eu 2+ , Dy 3+ was first grafted with poly(butyl acrylate)‐poly(methyl methacrylate) (core‐shell) (designed as PMMA(PBA)) by in situ emulsion polymerization. The properties of polymer/phosphor composite particles were characterized by fourier transform infrared, X‐ray photoelectron spectroscopy, and thermogravimetric analysis. The results show that the polymer had grafted onto the phosphor by chemical bond and the grating ratio was about 6.3%. The results for PVC plastics characterized by scanning electron microscopy show that the interfacial adhesion was enhanced with filling the polymer/phosphor composite particles and the compatibility of phosphor with PVC matrix was improved by coating with PMMA(PBA). And the luminescent PVC plastics filled with PMMA(PBA)/phosphor composite particles show improved mechanical properties and higher phosphorescence when the filling content was more than 3 phr compared with the unmodified phosphor. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009