title: Preparation of microencapsulated phase-change materials (MCPCMs) by means of interfacial polycondensation.
abstract: Microcapsules for energy storage and/or heat transfer applications containing phase-change materials (PCMs-including n-pentadecane, n-eicosane and a paraffin wax) were successfully produced by emulsifying the PCMs as small droplets in an aqueous, water-soluble urea-formaldehyde pre-polymer solution substantially free of emulsifier while polymerizing the pre-polymer at the interface by acid-catalyst. The core/shell structured microcapsules were also characterized with size distribution analysis, scanning electron microscopy, FTIR spectrometry and differential scanning calorimetry.
authors: National Cheng Kung University, Tainan, Taiwan, ROC.
authors: Y-H
authors: YH
authors: Tseng
authors: M-H
authors: MH
authors: Fang
authors: P-S
authors: PS
authors: Tsai
authors: Y-M
authors: YM
authors: Yang
mesh_terms: D000473:Alkanes; D002214:Capsules; D004339:Drug Compounding / Q000379:methods*; D045703:Emulsifying Agents; D004735:Energy Transfer; D005557:Formaldehyde; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning / Q000379:methods; D010232:Paraffin; D010316:Particle Size; D011108:Polymers; D012597:Sclerosing Solutions; D014508:Urea; D014885:Waxes
chemical_list: D000473:Alkanes; D002214:Capsules; D045703:Emulsifying Agents; D011108:Polymers; D012597:Sclerosing Solutions; D014885:Waxes; C033245:pentadecane; D005557:Formaldehyde; C050821:eicosane; C028278:urea formaldehyde foam; D010232:Paraffin; D014508:Urea