PreParation of Fine Composite Particles with Phase-Inversion-Chemical-Pulverization by use of Expanded Polystyrene

发泡聚苯乙烯相转化化学粉碎法制备复合细粒子

• 批准号: 14550733
• 负责人: TANAKA Masato
• 金额: $ 2.05万
• 依托单位: NIIGATA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550733/
• 关键词: Composite nano-particle; Functional fine particle; Phase inversion emulsification; Chemical pulverization; Wet composite process; Recycle; Drying in liquid; Expanded polystyrene; 発砲ポスチレン

Fine composite particles were prepared with phase inversion chemical pulverization method by use of expanded polystyrene. As the solvent for expanded polystyrene and core material, limonene and a few of dyes were used, respectively.In the experiment, the continuous water phase was poured gradually under agitation into the limonene, where expanded polystyrene and dye were dissolved.With increasing the water phase, first the W/O dispersion was formed and then, the phase inversion occurred to form the O/W dispersion. After this process, limonene was removed by heating under vacuum and fine composite particles were prepared.As a result, it was found that diameters of fine particles were able to be controlled by the agitation speed and the adding speed of water phase in the region from 50nm to 1500nm. Furthermore, the inner structure of fine composite particles was found to be multi core type and to have the channel from the inner to the outer surface of particle.

以发泡聚苯乙烯为原料，采用相转化化学粉碎法制备了微细复合粒子。分别以柠檬烯和少量染料作为发泡聚苯乙烯和芯材的溶剂，在搅拌下将连续水相逐渐倒入柠檬烯中，发泡聚苯乙烯和染料溶解，随着水相的增加，先形成W/O分散体，然后发生相转化，形成O/W分散体。结果表明，通过控制搅拌速度和水相加入速度，可以将微细粒子的粒径控制在50 ~ 1500 nm范围内。复合微粒的内部结构为多核结构，并存在由内到外的孔道。

项目成果

Y.Akutsu, Y.Taguchi, M.Tanaka: "Development of Technique for Preparing Composite Particles by Semi-Chemical Recycle of EPS"Kagaku Kogaku Ronbunshu. 28(5). 569-574 (2002)

Y.Akutsu、Y.Taguchi、M.Tanaka：“通过 EPS 半化学回收制备复合颗粒的技术开发”Kagaku Kogaku Ronbunshu。

田中眞人, 田口佳成: "ナノ微粒子の調製および分散・凝集コントロールとその評価"技術情報協会. 9 (2003)

Masato Tanaka、Yoshinari Taguchi：“纳米颗粒的制备、分散/聚集控制和评估”技术信息协会 9 (2003)。

阿久津靖ら: "発泡ポリスチレンのケミカルリサイクルによる複合体微粒子調製技術の開発"化学工学論文集. 28巻、5号. 569-574 (2002)

Yasushi Akutsu 等人：“通过发泡聚苯乙烯的化学回收制备复合细颗粒技术”，《化学工程杂志》，第 28 卷，第 5 期，第 569-574 期（2002 年）。