23 Jul Preparation method and application of phase change energy storage microcapsules
Abstract
The invention discloses a preparation method and application of phase change energy storage microcapsules. The preparation method comprises the following steps: preparing a silk protein water solution with the mass concentration of 2-5%, and adding an emulsifier into the silk protein water solution to prepare a solution I; melting an oil-soluble organic phase change material, adding the melted oil-soluble organic phase change material into the solution I, and emulsifying for 30-120 min to prepare an emulsion II at the temperature above the melting point of the phase change material; adding a conformational change inducing agent into the emulsion II to enable silk protein to be deposited on the surface of the phase change material, thereby preparing a solution III; freezing the solution III at -20 DEG C to -10 DEG C for 24-36 hours, and sequentially thawing, filtering and drying to obtain the phase change energy storage microcapsules. According to the application of the phase change energy storage microcapsules, the phase change energy storage microcapsules prepared by the method are used as a skin wound dressing or a tissue regeneration engineering material. The preparation method does not need crosslinking treatment, the process is simple and effective, large-scale implementation is facilitated, and the finished product does not contain metal ions and organic solvent residues.
Year: 2015
Country: CN
Doc No: 104927777