Effect of Core Material on Breaking Behavior of Self-Bursting Microcapsules

• 作者: Masayoshi Fuji Naoki Tsuda Toshiro Ohtsubo
• 来源期刊: 封装与吸附期刊(英文)
• 学科: 医学
• 关键词: MICROCAPSULE Interfacial Polymerization Self-bursting Dielectric Constant
• 年，卷（期）: 2011,（4）
• 页码范围: 51-56
• 页数: 6页
• 分类号: R73

摘要

Self-bursting microcapsules, which retain their shape when suspended in water but burst quickly after the water evaporates, were proposed in a previous report. In this report, the effect of core materials on the bursting mechanism was studied. Five kinds of solvents were used as core materials, microencapsulated with polyurethane via an interfacial polymerization method. It was found that the self-bursting ratio was proportional to the measured dielectric constant of the core material. Thus, the solvents with a higher dielectric constant had an effect on the wall material to a greater extent. Furthermore, the self-bursting ratio was able to be predicted using the “organic conceptual diagram.”