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http://dx.doi.org/10.14478/ace.2019.1106

Synthesis and Characterization of Polyurethane-silica Composite Foam  

Kang, Hyeon Seok (Department of Chemical Engineering, Kyonggi Unuversity)
Kim, Sang bum (Department of Chemical Engineering, Kyonggi Unuversity)
Publication Information
Applied Chemistry for Engineering / v.31, no.1, 2020 , pp. 30-35 More about this Journal
Abstract
In this study, polyurethane-silica composite foams were synthesized to analyze thermal insulation characteristics and mechanical properties. In order to synthesize polyurethane-silica composite foams, polyester-silica composite polyols were first synthesized via a polymerization reaction with silica sol, dicarboxylic acid and glycol in monomer state. Physical properties of polyurethane-silica composite foams synthesized using the composite polyols were analyzed. From the thermal conductivity analysis, no significant differences among HPUF0, HPUF1, HPUF3 and HPUF5 were found. The compressive strength of polyurethane-silica composite foams increased as the silica content increased. The mechanical property of HPUF5 was also about 25% higher than that of HPUF0.
Keywords
Silica sol; Polyurethane; Compressive strength;
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