杉木苯酚液化物合成热固型酚醛树脂的研究

›› 2007, Vol. 41 ›› Issue (5): 9-12.

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Studies on Synthesis of Resol Phenol-formaldehyde Resin from Liquefied Chinese Fir Wood in Phenol

JIE Shu-jun, ZHANG Qiu-hui, LI Jian-zhang

College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China

Received:2007-04-16 Revised:1900-01-01 Online:2007-09-30 Published:2007-09-30

Abstract

Abstract: In this study, we aimed to synthesize resol phenol-formaldehyde resin from the liquefied Chinese Fir(Cunninghamia lanceolata) wood in phenol with different ratio of wood to phenol in presence of sulfuric acid as catalyst. The effects of ratio of formaldehyde to phenol (r_F/P), ratio of NaOH to phenol (r_NaOH/P) and resinification temperature on chemical properties of liquefied wood resins (LWR) were investigated. The resol phenol-formaldehyde adhesive could be prepared from liquefied wood (wood:phenol=1:2) in phenol at r_F/P 1.8, r_NaOH/P 0.7 and resinification temperature 80℃.The physical properties of the poplar three-layer plywood bonded with LWR were similar to those with normal PF resins and also satisfied the demands of I level. Free formaldehyde content of plywood (0.1 mg/L) was lower than the E₀ level set by GB/T 9846-2004 Plywood.

Key words: phenol, phenol-formaldehyde resin, liquefaction, plywood

CLC Number:

TQ323.1

JIE Shu-jun;ZHANG Qiu-hui;LI Jian-zhang. Studies on Synthesis of Resol Phenol-formaldehyde Resin from Liquefied Chinese Fir Wood in Phenol[J]. , 2007, 41(5): 9-12.

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Studies on Synthesis of Resol Phenol-formaldehyde Resin from Liquefied Chinese Fir Wood in Phenol

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