화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.90, 287-299, October, 2020
DOI10.1016/j.jiec.2020.07.026  Export Citation
Encapsulation of health-monitoring agent in poly-methyl-methacrylate microcapsules using supercritical emulsion extraction
Ida Palazzo1, Marialuigia Raimondo2, Giovanna Della Porta1, 3, Liberata Guadagno2, and Ernesto Reverchon1, †
  • 1Supercritical Fluids Lab., Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano (SA), Italy
  • 2Chemical Fundamentals of Technologies Lab., Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano (SA), Italy
  • 3Translational Medicine Lab., Department of Medicine and Surgery, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy
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Supercritical emulsions extraction (SEE-C) technology was used to produce PMMA/diglycidyl ether of bisphenol A microcapsules acting as a health-monitoring element. A comparison between SEE-C and solvent evaporation was carried out. Best results were obtained using SEE-C: spherical microcapsules with a smooth surface and a mean size of 220 nm, with an encapsulation efficiency up to 79%, were obtained. SEE-C capsules preserve their stability for the entire time frame analyzed (30 days). Impact tests were carried out on strips of carbon fiber reinforced composites coated with an aqueous paint in which capsules were previously dispersed: dye leaking associated with capsules breaking was evidenced.
Keywords:Health-monitoring microcapsules;Supercritical emulsion extraction;DGEBA;PMMA;Impact test
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