メタクリル樹脂用ジクロロメタン代替無害接着溶剤の探索(2004年度神奈川大学総合理学研究所助成共同研究)

概要

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Dichloromethane (CH_2Cl_2) is good solvent to adhere PMMA, so it is used widely in industrial fields. It has a bad effect, however, on organisms and pollutes environment. Its solution and vapor have a toxic effection blood and nerve centers. It it is also said to cause mutation of the gene. When it is burned, dichloromethane generates phosgene (CCl_2O) which is known as a poison and air polluting substance. It is a serious problem that dichloromethane is harmful to our health. The purpose of this study is to search for reagents that have as high performance for adhesives as dichloromethane, and that don't have a bad effect on organisms and the environment. The specimens were PMMA plates (1mm × 1cm × 5cm) made by injection molding, with an average molecular weight between 100,000 and 150,000. First, we selected several solvents were PMMA. Then, solvents were analyzed with FT-IR and TG/DTA for chemical changes, and the peeling test for measuring the adhesion strength, compared with dichloromethane. It was proposed that Acetone, Ethylene glycol monomethyl ether and 2-Ethoxy ethanol are possible and the results substitutes dichloromethane for adhering PMMA.
2005-05-25