竹材浸渍用酚醛树脂的合成及表征  

Synthesis and Characterization of Phenolic Resin for Bamboo Impregnation

作　　者：王春霞[1] 赵磊[2] 刘浩阳[1] 张长武[1] 张晶[1] 

机构地区：[1]黑龙江省木材科学研究所,黑龙江哈尔滨150081 [2]东北林业大学,黑龙江哈尔滨150040

出　　处：《林业机械与木工设备》2012年第8期14-16,共3页Forestry Machinery & Woodworking Equipment

基　　金：木材产业升级关键技术研究"新型家具用重组竹制造技术与示范"项目

摘　　要：介绍了采用蒸馏法及分光光度法测定竹材游离苯酚含量的方法。实验选用氢氧化钠作催化剂,采用一次逐步加入甲醛的方法合成低游离酚的水溶性酚醛树脂。采用单因子试验方法分析了反应温度为55℃时保温过程中游离苯酚含量的变化情况,反应原料摩尔比、催化剂用量、分次加甲醛量对合成酚醛树脂游离苯酚的影响,确定优选的合成工艺为:反应温度55℃;保温反应时间60min;F/P摩尔比2.3;NaOH用量0.4;初次加甲醛量50%。A method for obtaining free phenol from resin through distillation and determining the content of free phenol by means of a spectrophotometer is introduced. In the experiment, sodium hydroxide is used as a catalyst and formaldehyde is added gradually to synthetize water-soluble phenolic resin with low free phenol. A single factor experimental method is used to analyze the change in the content of free phenol in the insulation process when the reaction temperature is 55℃ and the effect of reactant molar ratio, reaction temperature and formaldehyde content on the free phenol in the synthetic phenolic resin to determine the optimal synthesis process： reaction temperature, 55℃ ; insulation reaction time, 60 min; F/P Moore ratio, 2.3; NaOH amount ,0.4; Initial addition amount of formaldehyde, 50%.

关 键 词：酚醛树脂 低游离酚 重组竹 浸渍 

分 类 号：TS652[轻工技术与工程]