期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 9, 页码 8041-8054出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b00677
关键词
Microcapsules; Microplastics; Fragrance Encapsulation; Bioplastics; Biodegradability
资金
- Research Foundation - Flanders (FWO)
- VLAIO [155044]
Microencapsulation of volatile compounds in fabric care products has brought extra value in a variety of laundry-type applications, allowing clothes to release pleasant scents for weeks after their last wash with minimal amounts of fragrance used. Melamine-formaldehyde is the industry standard in this regard, while polyacrylate and polyurea shells are promising candidates for use in commercial laundry-type applications. Harsh storage conditions and demanding release characteristics have limited the number of viable shell wall materials and chemistries for these kinds of applications. This renders nano- and microencapsulation of volatile compounds for laundry-type applications one of the most challenging areas in the encapsulation field. The largest drawback of the current technology is the limited biodegradability of the produced microcapsules, e.g. when leaking via wastewater. This review summarizes the search toward viable, high-performant and sustainable alternatives for the current technology. First, various techniques to encapsulate volatile compounds in this context are overviewed. Recent relevant encapsulation reports using natural and synthetic shell walls are discussed, while controlled release data are included where possible. Finally, a perspective containing insights toward sustainability in the engineering of alternative capsule chemistries is offered.
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