Reversible Nontoxic Thermochromic Microcapsules.
AuthorLiu, B; Rasines Mazo, A; Gurr, PA; Qiao, GG
Source TitleACS Applied Materials and Interfaces
PublisherAmerican Chemical Society
AffiliationChemical and Biomolecular Engineering
Document TypeJournal Article
CitationsLiu, B., Rasines Mazo, A., Gurr, P. A. & Qiao, G. G. (2020). Reversible Nontoxic Thermochromic Microcapsules.. ACS Appl Mater Interfaces, 12 (8), pp.9782-9789. https://doi.org/10.1021/acsami.9b21330.
Access StatusOpen Access
ARC Grant codeARC/IH120100053
Thermochromic materials exhibit a color change in response to a change in temperature. Creating nontoxic microcapsules containing thermochromic materials for applications in ink and film materials is historically challenging. In this study, we develop a nontoxic chlorophenol red (CPR)-water thermochromic system and its microcapsules with silicone shells via a reaction between water and octadecyltrichlorosilane (OTS) at the interface of a w/o emulsion. The obtained microcapsules exhibit a clear color change with full reversibility and are successfully used as inks by screen printing and as additives in films. Nontoxicity of both microcapsules and films is demonstrated through cell cytotoxicity assays. These features make these novel materials applicable to the next generation of intelligent sensors, coating, and food packaging materials.
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