乳化剂十六烷基三甲基溴化铵对木材用淀粉胶粘剂使用性能的影响  

Effect of CTAB on the Application Performance of Starch-based Wood Adhesive

作　　者：王健[1] 程力[1] 顾正彪[1,2] 李兆丰[1,2] 

机构地区：[1]江南大学食品学院,江苏无锡214122 [2]江南大学食品科学与技术国家重点实验室,江苏无锡214122

出　　处：《精细化工》2012年第9期906-909,共4页Fine Chemicals

基　　金：江苏省科技支撑(工业)计划项目(BE2011015);2011年度高校科研成果产业化推进项目(JHB2011-28)~~

摘　　要：研究了乳化剂十六烷基三甲基溴化铵(CTAB)的添加对木材用淀粉胶粘剂粘接性能、黏度、流动性、贮藏稳定性的影响,并对其作用机理进行了初步探讨。结果表明,CTAB的添加会导致木材用淀粉胶粘剂压缩剪切强度的小幅下降,但可以降低淀粉胶粘剂的黏度,明显改善玉米淀粉胶粘剂的流动性,提高淀粉胶粘剂的贮藏稳定性;CTAB添加量以占淀粉干基质量1.5%为宜,其所改性的木材用淀粉胶粘剂具有良好的使用性能。差示扫描量热仪(DSC)和扫描电子显微镜(SEM)分析可知,CTAB的作用机理可能是阻碍了淀粉分子的聚集,从而抑制了淀粉的短期回生和长期回生。The effects of cetyl trimethyl ammonium bromide （ CTAB ） on the shear strength, viscosity, mobility and storage stability of starch - based wood adhesive were studied. The action mechanism of CTAB was tentatively discussed. It is shown that, although CTAB addition resulted in a slight decrease in the shear strength of starch-based wood adhesive, the mobility and storage stability of the adhesive were significantly improved. 1.5 % （ mass fraction, dry starch basis） of CTAB led to best application performance of the starch-based wood adhesive. The results of differential scanning calorimeter （ DSC ） and scanning electron microscopy（SEM） suggest that the action mechanism of CTAB might hinder the aggregation of starch molecules, thereby resulting in the inhibition of the short-term and long-term retrogradation of starch.

关 键 词：玉米淀粉 木材胶粘剂 十六烷基三甲基溴化铵 流动性 贮藏稳定性 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]