木材用改性木薯淀粉胶粘剂的制备及性能研究  

Study on preparation and properties of modified cassava starch adhesive for wood

作　　者：孙剑平[1,2,3] 李利军[1,2,3] 程昊[1,2,3] 黄文艺[1,2,3] 郭宁[1,2,3] Sun Jianping Li Lijun Cheng Hao Huang Wenyi Guo Ning(College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China Guangxi Sugar Industry Collaborative hmovation Center,Nanning 530004,China)

机构地区：[1]广西科技大学生物与化学工程学院,广西柳州545006 [2]广西科技大学,广西糖资源绿色加工重点实验室,广西柳州545006 [3]广西蔗糖产业协同创新中心,广西南宁530004

出　　处：《中国胶粘剂》2017年第1期25-28,36,共5页China Adhesives

摘　　要：以过硫酸铵(APS)为引发剂、乙烯基三乙氧基硅烷为硅烷偶联剂、丙烯酰胺(AM)为硬单体和丙烯酸丁酯(BA)为软单体,采用接枝共聚法制备了木材用改性木薯淀粉胶粘剂。研究结果表明:采用单因素试验法优选出制备该胶粘剂的最佳工艺条件是V(乙烯基三乙氧基硅烷)=1.6 m L、m(单体)∶m(淀粉)=0.9∶1.0、m(AM)∶m(BA)=0.56∶1.0、m(APS)=0.3 g、m(淀粉)=25 g、反应时间为4 h和反应温度为50℃,此时胶粘剂的综合性能相对最好,其干态、湿态剪切强度分别为5.26、4.18 MPa。With ammonium persulfate（APS） as initiator,vinyl triethoxy silane as silane coupler,acrylamide（AM）as hard monomer,and butyl acrylate（BA）as soft monomer,the modified cassava starch adhesivefor wood was prepared by graft copolymerization. The research results showed that the optimal process conditions ofpreparing adhesive were preferred by single factor experiment when vinyl triethoxy silane was 1.6 m L,mass ratios of m（monomer）∶m（starch）and m（AM）∶m（BA）were 0.9∶1.0 and 0.56∶1.0 respectively,APS was 0.3 g,starch was25 g,and reaction time and temperature were 4 h and 50 ℃ respectively. Here,the adhesive had the relatively bestcombination property because its dry-shear strength and wet-shear strength were 5.26,4.18 MPa respectively.

关 键 词：木材胶粘剂 木薯淀粉 乙烯基三乙氧基硅烷 丙烯酸丁酯 丙烯酰胺 

分 类 号：TQ432.2[化学工程]