Enhancement of Thermal Properties of Epoxy Vitrimer Using Various catalyst
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초록
내용
Generally thermosetting polymers have better physical properties than thermoplastic polymers, but are difficult to recycle. Recent studies have reported a thermosetting polymer called vitrimer that can be recycled using the transesterification reaction. Vitrimer has a temperature called topology freezing transition temperature(Tv) at which the bond exchange is activated. Vitrimer can be reshaped above Tv.. Tv is known to be influenced by the type and concentration of catalyst used in vitrimer synthesis. recent researches mainly used Zinc catalyst. but we have found a catalyst that activates the transesterification reaction more effectively than zinc catalyst and applied it to the vitrimer to lower the Tv. The descent of the Tv allows polymer molding at lower temperatures. The vitrimer synthesized in this study will improve the applicability to the polymer coating and recycling polymer field.