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Preparation of PMMA Marbles by Film Molding Method  

길기승 (충북대학교 화학공학과, 컴퓨터정보통신연구소)
김의식 (충북대학교 화학공학과, 컴퓨터정보통신연구소)
김대수 (충북대학교 화학공학과, 컴퓨터정보통신연구소)
Publication Information
Polymer(Korea) / v.27, no.2, 2003 , pp. 152-158 More about this Journal
Abstract
Two commercial processing methods have been used to produce poly(methyl methacrylate) (PMMA) marbles; cell molding method and belt molding method. Cell molding method has low productivity and belt molding method has high equipment cost as well as high production cost. A new production method far PMMA marbles using plastic films as molds was studied in this investigation to overcome the shortcomings of cell molding and belt molding method. As plastic film molds for producing PMMA marbles, poly(vinyl acetate) film was used. A methyl methacrylate compound, which has good processability in film molding and shows good mechanical properties after curing, was prepared and used to produce PMMA marbles by film molding method. Properties of the PMMA marbles produced by film molding method were similar to, or higher than, those of commercial PMMA marbles produced by cell molding and belt molding method respectively. The film molding method is considered to have high possibility in commercial application.
Keywords
PMMA marbles; MMA compound; film molding; properties;
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