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- Title
Effects of poly(1,2-propylene glycol adipate) and nano-CaCO<sub>3</sub> on DOP migration and mechanical properties of flexible PVC.
- Authors
Li, Xihong; Xiao, Yao; Wang, Biao; Tang, Yao; Lu, Yaqing; Wang, Chengjun
- Abstract
Nano-CaCO3 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-CaCO3 on restraining DOP migration was evaluated via extraction tests. The results showed that the introduction of nano-CaCO3 can decrease the extraction rate of DOP in the PVC matrix. The tensile strength and elongation at break of CaCO3-1/PPA-20/DOP-30/PVC were similar to those of DOP-50/PVC, and CaCO3-1/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-CaCO3 effectively improved the thermal stability of the nanocomposites. Therefore, the combination of PPA and nano-CaCO3 is an effective approach to suppress the migration of DOP. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
- Subjects
POLYVINYL chloride; MECHANICAL behavior of materials; PROPYLENE glycols; THERMOGRAVIMETRY; NANOCOMPOSITE materials
- Publication
Journal of Applied Polymer Science, 2012, Vol 124, Issue 2, p1737
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.35183