Synthesis of novolac‐based char former: Silicon‐containing phenolic resin and its synergistic action with magnesium hydroxide in polyamide‐6

Guoxia Fei; Qi Wang; Yuan Liu

doi:10.1002/fam.1029

journal article Nov 14, 2010

Synthesis of novolac‐based char former: Silicon‐containing phenolic resin and its synergistic action with magnesium hydroxide in polyamide‐6

Guoxia Fei Qi Wang

Yuan Liu

Fire and Materials Vol. 34 No. 8 pp. 407-419 · Wiley

View at Publisher Save 10.1002/fam.1029

Abstract

AbstractNovel novolac‐based char former silicon‐containing phenolic resin (SCPR) was synthesized by the reaction of novolac with γ‐aminopropyltriethoxysilane in ethanol via a dehydration reaction, and the synthesized SCPR was characterized by Fourier transform infrared (FT‐IR) spectra, proton nuclear magnetic resonance (1H NMR) spectroscopy, and thermogravimetric analysis (TGA). Serving as a synergist of magnesium hydroxide (MH) for the flame retardancy of polyamide 6 (PA6), it shows that the introduction of silicon in the structure of novolac molecule can greatly increase the charring performance of phenolic resin, and effectively eliminate the melt drips of PA6, thus improving the flame retardancy of the PA6. Compared with conventional novolac, the thermal oxidative stability of SCPR was obviously enhanced in the presence of MH due to the decrease of phenol hydroxide groups sensitive to oxidation, as well as the high energy Si–O bond introduced in the molecular structure. Copyright © 2010 John Wiley & Sons, Ltd.

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Metrics

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Citations

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References

Details

Published: Nov 14, 2010
Vol/Issue: 34(8)
Pages: 407-419
License: View

Authors

G

Guoxia Fei

State Key Laboratory of Polymer Materials Engineering Polymer Research Institute Sichuan University Chengdu 610065 China

Q

Qi Wang

National Institute of Occupational Safety and Health

Y

Yuan Liu

Department of Biochemistry University of Washington Washington Seattle 98195; Institute for Protein Design, University of Washington Washington Seattle 98195

Cite This Article

Guoxia Fei, Qi Wang, Yuan Liu (2010). Synthesis of novolac‐based char former: Silicon‐containing phenolic resin and its synergistic action with magnesium hydroxide in polyamide‐6. Fire and Materials, 34(8), 407-419. https://doi.org/10.1002/fam.1029

Synthesis of novolac‐based char former: Silicon‐containing phenolic resin and its synergistic action with magnesium hydroxide in polyamide‐6

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