Physical properties of urea-formaldehyde microcapsules containing an epoxy resin are presented and discussed. Microcapsules were prepared by in situ polymerization of monomers in an oil-in-water emulsion. Differential scanning calorimetry, thermogravimetric analysis, and scanning electronic microscopy were applied to investigate thermal and morphological microcapsule properties. Microencapsulation was detected by means of FTIR and Raman techniques. It was found that the amount of encapsulated epoxy resin as well as the extent of urea-formaldehyde polymerization depends on the reaction temperature and the stirring speed.
Properties of poly(urea-formaldheyde) microcapsules containing an epoxy resin / S., Cosco; Ambrogi, Veronica; P., Musto; Carfagna, Cosimo. - In: JOURNAL OF APPLIED POLYMER SCIENCE. - ISSN 0021-8995. - 105:(2007), pp. 1400-1411. [10.1002/app.26263]
Properties of poly(urea-formaldheyde) microcapsules containing an epoxy resin
AMBROGI, VERONICA;CARFAGNA, COSIMO
2007
Abstract
Physical properties of urea-formaldehyde microcapsules containing an epoxy resin are presented and discussed. Microcapsules were prepared by in situ polymerization of monomers in an oil-in-water emulsion. Differential scanning calorimetry, thermogravimetric analysis, and scanning electronic microscopy were applied to investigate thermal and morphological microcapsule properties. Microencapsulation was detected by means of FTIR and Raman techniques. It was found that the amount of encapsulated epoxy resin as well as the extent of urea-formaldehyde polymerization depends on the reaction temperature and the stirring speed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
