Expanded Polystyrene Foam Formed from Polystyrene Beads Coated with a Nanocrystalline SiO2 Film and the Analysis of Its Moisture Adsorption and Resistance to Mechanical Stress

Q2 Materials Science
S. Varnagiris, J. Donėlienė, S. Tučkutė, J. Cesniene, M. Lelis, D. Milčius
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引用次数: 7

Abstract

ABSTRACTConventional expanded polystyrene can absorb moisture, which significantly degrades its properties. In the present study, it was demonstrated that SiO2 can be deposited on polystyrene beads before pre-expansion and molding steps. Under the applied test conditions, expanded polystyrene with nanocrystalline SiO2 additives had approximately 10% lower moisture adsorption and an 8.4% better resistance to deformation. Expanded polystyrene analysis suggested that the observed improvements were caused by the hydrophobic nature of nanocrystalline SiO2 and, even more importantly, because SiO2 acted as an amalgamation catalyst and significantly increased adhesion between the expanded polystyrene beads during the expanded polystyrene molding process.
聚苯乙烯微珠包覆纳米SiO2膜形成膨胀聚苯乙烯泡沫及其吸湿性和抗机械应力分析
【摘要】传统的膨胀聚苯乙烯吸湿会显著降低其性能。在本研究中,证明了SiO2可以在预膨胀和成型步骤之前沉积在聚苯乙烯珠上。在应用的测试条件下,添加纳米晶SiO2的膨胀聚苯乙烯的吸湿性能降低了约10%,抗变形性能提高了8.4%。膨胀聚苯乙烯分析表明,观察到的改善是由纳米晶SiO2的疏水性引起的,更重要的是,在膨胀聚苯乙烯成型过程中,SiO2起到了汞化催化剂的作用,显著增加了膨胀聚苯乙烯珠之间的附着力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Polymer-Plastics Technology and Engineering
Polymer-Plastics Technology and Engineering 工程技术-高分子科学
CiteScore
1.71
自引率
0.00%
发文量
0
审稿时长
4 months
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