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Toughening and reinforcement of rigid PVC with silicone rubber/nano‐CACO 3 shell‐core structured fillers
Author(s) -
Yang Ling,
Hu Yuan,
Guo Hong,
Song Lei,
Chen Zuyao,
Fan Weicheng
Publication year - 2006
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.24685
Subject(s) - materials science , composite material , nanocomposite , silicone rubber , composite number , natural rubber , toughness , scanning electron microscope , vinyl chloride , polyvinyl chloride , nano , copolymer , polymer
To improve the mechanical properties and structure of poly(vinyl chloride) (PVC)/nano‐CaCO 3 nano composite, a core (nano‐CaCO 3 )/shell (SR) structured filler (40–60 nm) was successfully prepared by refluxing methyl vinyl silicone rubber (SR) and nano‐CaCO 3 particles (coupling agent KH550, KH560, or NDZ‐101 as interfacial modifier) in toluene with vigorous stirring, according to an encapsulation model. It is effective in rigid PVC composite's toughness and reinforcement. The interfacial modifier's structure and interaction of nanocomposites of PVC/SR/nano‐CaCO 3 were studied. The results indicate that KH560 has the optimal interfacial modificatory effect. The environmental scanning electron microscope (ESEM) study testified that PVC/SR/nano‐CaCO 3 nanocomposites had a typical rubber–plastics‐toughening mechanism. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2560–2567, 2006