Preparation and Photo-curing Property of the Optical-thermal Sensitive Microcapsule Material
The driving-forces for microcapsule applied so far are mostly ascribed to its micro-reactor function for manipulating physical, chemical or biological response in confined space. Compared with intensive researches of temperature-sensitive microcapsules, the optical-sensitive microcapsules had drawn few attentions. In this article, UV optical-sensitive ingredients of TMPTA and 1173/TPO monomer with thermal color-forming dye ODB-2 have been encapsulated in core-shell structured microcapsules by interfacial polycondensation method to obtain optical-thermal stimuli sensitive material. The particle diameter distribution is narrowed during O/W (oil/water phase) emulsification process with distribution peak at 1.1 m. From FT μ-IR detection, the microcapsule shell has polyurea structure. The synthesized microcapsule is thermal stable under 245℃, with the phase change point at about 115℃. Under UV irradiation, the microcapsule absorbance at 1635cm-1 decrease rapidly with exposed for 10s and then nearly unchanged during further exposure. The optical response is achieved by C=C bond cleavage of TMPTA monomer to form network polymers in microcapsules. The microcapsules can act as smart functional micro-reactors to respond optical-thermal stimuli in micrometer scale..
Weidong Lai Xiaowei Li Xinzheng Li Guangsheng Fu
College of Physics Science and Technology, Hebei University Baoding, Hebei, P. R. China College of Physics Science and Technology, Hebei University Baoding, Hebei, P. R. China
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
739-742
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）