环保氨基酸型粘合剂的制备研究  

Study on Preparation of Environmental Protection 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,西安710016

出　　处：《包装工程》2007年第12期35-37,共3页Packaging Engineering

基　　金：陕西省星火计划(2004KX3-10)

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。以初始粘度为指标,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粘度的影响最大,重点研究这两个因素,选出最佳合成工艺。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GB 18583-2001和HG/T 2727-95要求,其中游离甲醛为0.01g/kg,剪切干强度为13.14MPa,远远高于标准要求。与传统改性相比,环保氨基酸粘合剂的凝固点为-5℃左右,常温呈液态,使用方便,应用范围更广。An environmental protection amino acid adhesive was prepared by modifying bone glue with epichlorohydrine. The polymerization temperature, the amounts of sodium hydrate and epichlorohydrin, the time of alkaline hydrolysis and polymerization were taken as inspecting factors, the initial viscosity as inspecting marker, and the best preparation technique of amino acid adhesive was screened by orthogonal experiments. The results indicated that sodium hydrate and epichlorohydrin were most notable among the 5 factors. The thermodynamics behavior was checked by TGA. All the properties were measured up to the standard GB18583 -2001 and HG/T2727 -95, and free formaldehyde （0.01g/Kg） and shearing dry strength （ 13, 14Mpa） were outclassing standards, The freezing point of the adhesive is about -5℃ ; it is fluid in the room temperature; and its application is wider.

关 键 词：氨基酸 粘合剂 环氧氯丙烷 游离甲醛 凝固点 

分 类 号：TQ431.5[化学工程]