环保氨基酸型粘合剂的制备研究  

Study of Preparation of Environmentally Friendly Amino Acid Adhesive

作　　者：牛育华[1] 李仲谨[1] 李文汉[1] 

机构地区：[1]陕西科技大学,陕西西安710016

出　　处：《化学建材》2007年第5期45-47,共3页Chemical Materials for Construction

基　　金：陕西省星火计划:新型环保胶粘剂--改性骨胶的研究

摘　　要：以环氧氯丙烷为交联剂对骨胶进行化学改性得到环保氨基酸粘合剂。以初始黏度为指标,氢氧化钠用量、碱解时间、接枝共聚温度、环氧氯丙烷用量和接枝共聚时间为考察因素,做正交实验。结果表明氢氧化钠和环氧氯丙烷的加入量对黏度的影响最大。通过热重分析对胶粘剂的热力学性能进行检测,所制得的粘合剂各项性能均达到GB18583—2001和HG/T2727—1995标准要求,其中游离甲醛为0.01g/kg,剪切干强度为13.14MPa,凝固点为-5℃左右,常温呈液态。Environmentally friendly amino acid adhesive was prepared with bone glue modified by epichlorohydrin as cross linking agent. Orthogonal experiments were made with initial viscosity as inspecting marker, content of sodium hydrate, time of alkaline hydrolysis, grafted copolymerization temperature, content of epichlorohydrin and grafted copolymerization time as inspecting factors. Testing results indicated that addition of sodium hydrate and epichlorohydrin exerted most remarkable effects on viscosity. By way of thermo-gravimetric analysis, thermo mechanical properties of the adhesive were checked. All the performances of the adhesive so prepared attained to the requirements of GB 18583-2001 Standard and HG/ T2727-1995 Standard of which free formaldehyde was 0.01g/kg, sheafing dry strength was 13.14MPa, freezing point was about -5℃ It was in a state of liquid at room temperature.

关 键 词：氨基酸 粘合剂 环氧氯丙烷 游离甲醛 凝固点 

分 类 号：TU581[建筑科学—建筑技术科学]