绿色环保木材用胶黏剂的研究  

Research on Environment Friendly Adhesive for Wood

作　　者：阎春绵[1] 张忠厚[1] 何领好[1] 吴卫林[1] 

机构地区：[1]郑州轻工业学院材料化工学院河南省表界面科学重点实验室,河南郑州450002

出　　处：《化学与粘合》2008年第5期4-7,共4页Chemistry and Adhesion

摘　　要：以过硫酸铵为引发剂制备聚丙烯酰胺预聚体,以次氯酸钠为氧化剂对淀粉进行氧化处理,将两者经过缩合反应得到接枝淀粉胶黏剂的主剂,用氮丙啶进行交联,得到了木材用改性淀粉胶。当缩合温度为60℃、氧化剂量为35mL、丙烯酰胺为淀粉质量的7.5%、交联剂为3%和交联时间3h时制得的胶黏剂胶合强度达到5.30MPa,耐水时间达33h。对各阶段试样进行了红外光谱和X射线衍射分析。Nontoxic adhesive for wood was prepared by condensation reaction of oxidated starch with low molecular weight polyacrylamide and then cross - linking by aziridine. Ammonium persulfate was the initiator for synthesizing polyacrylamide and sodium hypochlorite was oxidant for preparing oxidated starch. The bonding strength was 5.30 MPa and the water - resisting time was 33h when the condensation temperature was 60℃, the oxidant amount was 35ml, the acrylamide content was 7.5% of starch mass, the crosslinking agent was 3% and the crosslinking time was 3h. The adhesive sampies were analyzed by FTIR and XRD.

关 键 词：淀粉 木材胶黏剂 接枝改性 丙烯酰胺 氮丙啶 环保 耐水 

分 类 号：TQ433.2[化学工程]