Page 175 - 《精细化工》2019年第11期

第 36 卷第 11 期 精 细 化 工 Vol.36, No.11
2019 年 11 月 FINE CHEMICALS Nov. 2019

粘合剂
环氧树脂包覆蒙脱土的乳液制备木材胶粘剂

1
肖运彬 1,2 ，李志华 1,2 ，梁晟源 1,2 ，胡继文 1,2* ，林树东 1,2 ，涂园园
（1. 中国科学院广州化学研究所 广东省电子有机聚合物材料重点实验室 中国科学院纤维素化学重点实
验室，广东 广州 510650；2. 中国科学院大学，北京 100049）

摘要：以环氧树脂 E-51、三乙烯四胺、烯丙基缩水甘油醚、顺丁烯二酸酐、聚乙二醇为主要原料制备了双组分
水性环氧树脂胶粘剂。采用有机蒙脱土对水性环氧树脂进行改性，将有机蒙脱土包覆在环氧树脂乳液粒子中以
增强水性环氧树脂胶粘剂的耐水性和力学性能。通过 DLS、TEM 对乳液的稳定性及形貌进行了表征，通过 TGA、
SEM、DSC、电子拉力机对复合胶粘剂的结构与性能进行了表征，并且研究了不同有机蒙脱土质量分数对乳液
稳定性及复合胶粘剂性能的影响。结果表明：有机蒙脱土占环氧树脂最佳质量分数为 6%，此时乳液粒径为
164~824 nm，Zeta 电位为40 mV；与未改性胶粘剂相比，得到的复合胶粘剂干剪切强度提高了约 94%，湿剪切
强度提高了约 196%，玻璃化转变温度达到 95.1 ℃。
关键词：水性环氧树脂；蒙脱土；乳液；复合胶粘剂
中图分类号：TQ430.6 文献标识码：A 文章编号：1003-5214 (2019) 11-2323-07

Preparation of Wood Adhesive with Epoxy Resin Emulsion
Encapsulating Organic Montmorillonite

1,2
1,2
1,2
XIAO Yun-bin , LI Zhi-hua , LIANG Sheng-yuan ,
1
1,2
HU Ji-wen 1,2* , LIN Shu-dong , TU Yuan-yuan
（1. Key Laboratory of Electronic Organic Polymer Materials of Guangdong Province, Key Laboratory of Cellulose
and Lignellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650,
Guangdong, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China）
Abstract: A two-component waterborne epoxy resin adhesive was prepared by using epoxy resin E-51,
triethylenetetramine, allyl glycidyl ether, maleic anhydride and polyethylene glycol as main raw materials.
Then, the waterborne epoxy resin was modified by organic montmorillonite, and the organic
montmorillonite was encapsulted in the epoxy resin emulsion particles to enhance the water resistance and
mechanical properties of the waterborne epoxy resin adhesive. The stability and morphology of the
emulsion particles were characterized by DLS and TEM. The structure and properties of the composite
adhesive were characterized by TGA, SEM, DSC and electronic tensile machine. The effect of the organic
montmorillonite mass fraction on the emulsion stability and composite adhesion properties were
investigated. The results indicated that the optimal mass fraction of organic montmorillonite was 6% (based
on the mass of epoxy resin). The prepared emulsion showed a particle size from 164 nm to 824 nm and Zeta
potential of 40 mV. Compared with those of the unmodified adhesive, the dry strength of the composite
adhesive was improved by 94%, the wet shear strength was increased by 196%, and the glass transition
temperature reached 95.1 ℃.
Key words: waterborne epoxy resin; montmorillonite; emulsions; composite adhesives

木材作为一种天然可再生资源，具有较好的机 领域 [1-2] 。随着木材逐渐应用于外部环境（如潮湿、
械强度，因此，被广泛应用于建筑、家具和桥梁等 腐蚀性环境），对木材及生产过程中相关材料（如胶

收稿日期：2019-03-19; 定用日期：2019-04-22; DOI: 10.13550/j.jxhg.20190211
基金项目：广东省自然科学基金（2016A030313163）
作者简介：肖运彬（1993—），男，硕士生。联系人：胡继文（1966—），男，教授，博士，E-mail：hujiwen@gic.ac.cn。