論文
水ガラスを用いた中空発泡ガラス球体の合成プロセス開発とスーパーエンプラ/多孔ガラス複合体作製
2023 年 72 巻 8 号 p. 606-612
詳細
2023 年 72 巻 8 号 p. 606-612
The water-glass (sodium silicates solution) is low-cost and remarkably available as a raw material for novel functional materials. In the present study, the new synthetic process from water-glass for glass hollow foam was developed. We found the saturation point of water retaining in water-glass during the drying process under moisture control at 140 °C. The water-glass dried at 140 °C was crushed into granular powders and filtered with three grades :45~150µm, 150~300 µm, and 300~500 µm. Furthermore, we discovered that the water-glass powder dried at 140 °C expands to spherical micro particles with glass-like envelope (glass hollow foam) by heating at > 140 °C. In addition, the water-glass dried at 140 °C and thermo-plastic powders (various super engineering plastic) were mixed and heated at > 140 °C, which led to fabrication of porous super engineering plastic/glass hollow foam composites.
