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Preparation and Characterization of Lignin-Phenolic Foam

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Abstract:

In this paper, lignin could partly replaced phenol to prepare lignin-phenolic(LPF) foam. The effects of amount of lignin on mechanical properties, thermal stability, fire-retardant and micro-structure of LPF foam. The results indicated that the addition of lignin decreased the brittleness and flexibility of foam, and the foam hole became larger in diameter and distributed more unevenly. When the lignin replacement amount was lower, the foam had regular foam hole structure and even distribution of foam hole, the size of foam hole increased with an increase of lignin content, SEM observations were in accordance with the early research of the mechanical properties of foams. And the addition of lignin slightly affected the fire-retardant and thermal stability of foam. When lignin replacement amount was 30% and 40%, the critical oxygen index of foam was even slightly higher than the pure PF foam.

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Periodical:

Advanced Materials Research (Volumes 236-238)

Pages:

1014-1018

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.236-238.1014

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Online since:

May 2011

Authors:

Xiao Wei Zhuang, Shou Hai Li, Yu Feng Ma, Wei Zhang, Yu Zhi Xu, Chun Peng Wang, Fu Xiang Chu

Keywords:

Foam Hole Form, Lignin, Lignin-Phenolic Foam

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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