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Vol. 25 No. 5 (2013): Vol 25 Issue 5

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Stress-Softening and Interaction in Polydimethylsiloxane/Nano-Calcium Carbonate Networks

https://doi.org/10.14233/ajchem.2013.13971
Ya Peng
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China ; Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610039, Sichuan Province, P.R. China
Shoutao Lu
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China
Yi He
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China
Guangbin Zhao
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China
Ying Zhang
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China
Cui Ge
School of Material Science and Engineering, Xihua University, Chengdu 610039, Sichuan Province, P.R. China

Corresponding Author(s) : Ya Peng

pengyar@163.com; b897@163.com

Asian Journal of Chemistry, Vol. 25 No. 5 (2013): Vol 25 Issue 5

Abstract

In this study, stress-softening and interaction in polydimethylsiloxane and nano-calcium carbonate was invested to understand the mechanism of reinforcement. The stress-softening found in both unfilled and filled polydimethylsiloxane was more prominent in filled polydimethylsiloxane, particularly for samples with high filler content. The interaction between polydimethylsiloxane and nano-calcium carbonate was verified by swelling experiment, cross-linking density measurement, dynamic laser light scattering and IR experiment. The results demonstrate that the interaction can be attributed to the branched chain structure of nano-CaCO3 and active groups on the surface of nano-CaCO3.

Keywords

Polydimethylsiloxane Nano-calcium carbonate Interaction Stress-softening
Peng, Y., Lu, S., He, Y., Zhao, G., Zhang, Y., & Ge, C. (2012). Stress-Softening and Interaction in Polydimethylsiloxane/Nano-Calcium Carbonate Networks. Asian Journal of Chemistry, 25(5), 2805–2810. https://doi.org/10.14233/ajchem.2013.13971
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