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Effects of poly(1,2‐propylene glycol adipate) and nano‐CaCO 3 on DOP migration and mechanical properties of flexible PVC
Author(s) -
Li Xihong,
Xiao Yao,
Wang Biao,
Tang Yao,
Lu Yaqing,
Wang Chengjun
Publication year - 2011
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.35183
Subject(s) - adipate , materials science , nanocomposite , thermal stability , ultimate tensile strength , plasticizer , nano , polyvinyl chloride , chemical engineering , polymer chemistry , composite material , engineering
Nano‐CaCO 3 was used as nano‐scale filler and poly(1,2‐propylene glycol adipate) (PPA) was used as polymeric plasticizer in flexible poly(vinyl chloride) (PVC) sheets for the partial replacement of di(2‐ethyl hexyl) phthalate (DOP) in this paper. The effect of PPA and nano‐CaCO 3 on restraining DOP migration was evaluated via extraction tests. The results showed that the introduction of nano‐CaCO 3 can decrease the extraction rate of DOP in the PVC matrix. The tensile strength and elongation at break of CaCO 3 ‐1/PPA‐20/DOP‐30/PVC were similar to those of DOP‐50/PVC, and CaCO 3 ‐1/PPA‐20/DOP‐30/PVC exhibited the superior suppression of DOP migration compared with DOP‐50/PVC. Thermogravimetry analysis (TGA) indicated that the addition of nano‐CaCO 3 effectively improved the thermal stability of the nanocomposites. Therefore, the combination of PPA and nano‐CaCO 3 is an effective approach to suppress the migration of DOP. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012