| Summary: | 碩士 === 國立雲林科技大學 === 工業化學與災害防治研究所 === 93 === We synthesized two kinds of three-component coploymer,one which consists of methyl methacrylate, methyl acrylic acid and acrylic acid by the free radical copolymerization,the other consists of styrene, methyl acrylic acid and acrylic acid by the same way. The copolymer is used as carriers in curing epoxy resin. In addition, each of latexs has different acid values which copolymerized in order to connect with some kinds of amines.
In our investigation,we found that the faster speed of a moter and more surfactants we added,the smaller latexs partical size we get. Besides, the smaller latexs partical size we synthesized, the more acid values we measured .
In addition, we also synthesized many kinds of epoxy harden catylazers, which are latexs connectd with some kinds of amines by using thionyl chloride. In our investigation,we found that adding the latexs that had connected with some kinds of amides makes the epoxy resin curing rate accelerated. And the latexs connected with ethyl amide have the fastest curing rate. It is possible that the curing rate is corresponded to the steric hindrance of amide which connecd to the latexs. Finally, we think that it is sure that the latexs connected with amide have one kind of function that makes the epoxy resin curing rate to be accelerated in any temperature.
|
|---|
