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构建具有粘性核心的消费者友好型精油微胶囊,以提供超持久的释放
Powder Technology
(
IF
5.2
)
Pub Date : 2022-10-22
, DOI:
10.1016/j.powtec.2022.118040
Mengyuan Gao
,
Mei Ji
,
Yanping He
,
Xiaolin Pan
,
Yun Wang
,
Tian Si
,
Yanlin Sun
具有粘性核的精油微胶囊是通过用中间非交联聚合物壳和交联聚合物外壳封装油滴,然后用精油溶解中间壳形成粘性核来配制的。研究发现,当中间壳的核壳比=3:2、转速=500 rpm、保护胶体浓度=1.0 wt%、交联剂浓度=20 wt%、核外壳/壳比=10:1,采用3次加成法,得到具有粘性核的辛酸/癸酸甘油三酯(GTCC)微胶囊。与三聚氰胺-甲醛微胶囊相比,评估了 GTCC 微胶囊的释放曲线、机械强度和吸附性能。
"点击查看英文标题和摘要"
Construction of consumer-friendly essential oil microcapsules with viscous cores to provide extra long-lasting release
Essential oil microcapsules with viscous cores were formulated by encapsulating oil droplets with intermediate non-crosslinked polymer shells and crosslinked polymer outer shells, followed by dissolution of the intermediate shells with essential oil to form viscous cores. The study found that when the core/shell ratios of the intermediate shell = 3:2, the rotational speed = 500 rpm, the concentration of the protective colloid = 1.0 wt%, the concentration of the crosslinking agent = 20 wt% and the core/shell ratio of the outer shell = 10:1 by using three times' addition method, caprylic/capric triglyceride (GTCC) microcapsules with viscous cores were obtained. The release profile, mechanical strength and adsorption performance of GTCC microcapsules were evaluated in comparison with melamine-formaldehyde microcapsules. It was found that the viscous cores microcapsules had better heat resistance, extreme long-lasting release property, viscoelasticity and been more adhesive to cotton fabrics, which were more consumer-friendly compared with that of melamine-formaldehyde microcapsules.
更新日期:2022-10-22