Preparation of Phenol–Formaldehyde Foams Using Fulvic Acid

Abstract:

Abstract：preparation fulvic acid(FA) from lignite in particular process，fulvic acid- phenol-formaldehyde foams(FAPF) were synthesized using the FA as the replacement of phenol at varying ratios from 15-60 wt.%. The effects of foaming agent (dichlormethan)，surface active agent(tween-80) ，curing agengt(hydrochloric acid and phosphoric acid 1:1wt/wt), foaming temperature and FA amount on the property of foam were determined.Curing and foaming were synchronized when foaming agent was 2-6wt.% of the resin, surface active agent was 3-4wt.%,curing agengt was 12-16wt%,foaming temperature was 70-80 °C and FA less than 40wt.%. structure and characterized performance analysis of FAPF Through the Fourier infrared spectroscopy (IR), thermogravimetric (TG) and compressive strength. The results show that: FA could be used as a very good material of partly replace phenol.

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 1247-1251
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.1247
• Online since: December 2011
• Authors: Xiang Lin Zhang, Zheng An Wang, Xiao Su
• Keywords: Fulvic Acid, Fulvic Acid-Phenol-Formaldehyde Foams, Organic Polymer Materials, Performance Analysis

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