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Journal of Polymer Research

, 22:203 | Cite as

Silicone modified epoxy resins with good toughness, damping properties and high thermal residual weight

  • Zhengguang Heng
  • Zhong Zeng
  • Yang Chen
  • Huawei Zou
  • Mei Liang
Original Paper

Abstract

In this research, a series of epoxy-silicone copolymers were prepared from methyl phenyl silicone intermediates (PMPS) with a bisphenol A type epoxy resin (E-51) by condensation with dilaurate dibutyltin acting as catalyst. The chemical structure of the siloxane-bridged epoxy resin was characterized by Fourier transform infrared spectroscopy (FTIR), 1H-NMR and an epoxy equivalent weight (EEW) test. The modified epoxy resins showed better elongation at break and izod notched impact strength than neat resin. TGA results revealed that the residue at 600 °C of the modified epoxy resin increased with the increase of siloxane content. DMA tests displayed that the addition of silicone effectively enhanced the damping properties. Morphology studies indicated that the increase in izod notched impact strength is due to the suitable diameter of silicone phases because of the silicone toughening effect.

Keywords

Epoxy resin Silicone intermediates Mechanical properties Thermal stability Damping properties 

Notes

Acknowledgments

The authors would like to thank the National Natural Science Foundation of China (51273118), the Science & Technology Pillar Program of Sichuan (2013FZ0006) and the Fundamental Research Funds for the Central Universities of China (2015SCU11008) for financial support, and the Analytical and Testing Center of Sichuan University for providing SEM measurements.

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan UniversitySichuan UniversityChengduChina
  2. 2.Safety Environment Quality Surveillance and Inspection Research Institute of CNPC Chuanqing Drilling & Exploration CorporationChengduChina

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