当前位置: 首页 > 文章 > 意杨树皮液化制备酚醛树脂胶黏剂的研究 湖北农业科学 2011,50 (6) 1266-1269
Position: Home > Articles > Study on Phenolic Resin Adhesive Prepared from Liquefied Poplar Bark Hubei Agricultural Sciences 2011,50 (6) 1266-1269

意杨树皮液化制备酚醛树脂胶黏剂的研究

作  者:
张文博;吴爱军
单  位:
北京林业大学材料科学与技术学院;北京林业大学材料科学与技术学院林业生物质材料与能源教育部工程研究中心北京木材厂有限责任公司
关键词:
苯酚液化;意杨树皮;树脂化;酚醛树脂胶黏剂;生物质
摘  要:
针对树皮成分中富含多酚类化合物的特征,探讨了意杨树皮在苯酚液体中液化制备酚醛树脂胶黏剂的可能性。在硫酸为催化剂、苯酚和树皮重量比为3∶1、反应温度为150℃的条件下进行液化反应。调查了粉末尺寸及液化反应时间对液化效果的影响。结果表明,树皮液化时,反应时间为120min,所得液化物的残渣率较低。在液化过程中,将树皮粉逐渐加入反应器中可以显著地降低残渣率,合成树脂黏度有随液化处理时间延长而降低的趋势,在胶黏剂中添加树皮粉会增加其黏度,并显著地增强树脂的胶合强度。
译  名:
Study on Phenolic Resin Adhesive Prepared from Liquefied Poplar Bark
作  者:
ZHANG Wen-bo1,2,WU Ai-jun3(1.College of Materials Science and Technology,Beijing Forestry University,Beijing 100083,China;2.Engineering Research Centre of Forestry Biomass Materials & Energy,Ministrry of Education,Beijing 100083,China;3.Beijing Woodworking Factory Co.Ltd.,Beijing 100068,China)
关键词:
phenolic liquefaction;poplar bark;resinfication;phenolic resin adhesive;biomass
摘  要:
Poplar(Populus euramevicana cv.'I-214') bark contains a large quantity of polyphenolic compounds which was a great advantage for the preparation of phenolic resin adhesive.This study investigated the possibility of preparing phenolic resin adhesive by liquefaction of polar barkin phenol.Liquefaction using sulfuric acid as catalyst was carried out at a liquor ratio(phenol/bark) of 3∶1 at 150℃.Furthermore,effectiveness of liquefaction on size of bark powder and reaction time were also investigated.The results indicated that the poplar bark might be a good raw material for preparation of phenolic resin.Residue content would be lowered with stepwise superaddition of bark powder during liquefaction at reaction time of 120min.In addition,viscosity of adhesive decreased as the prolongation of liquefaction time.Result also showed bond strength of adhesive could be improved by adding bark powder as filler.

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