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首页> 外文期刊>Chemical engineering journal >Preparation and characterization of polysulfone microcapsules for perfume release
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Preparation and characterization of polysulfone microcapsules for perfume release

机译：用于香水释放的聚砜微胶囊的制备与表征

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摘要

Textile detergent and softener industries, among others, have been incorporating the recent scientific advances; such as microencapsulation technology, to successfully improve their final products. Perfume encapsulation allows perfume protection until use and provides a long-lasting fragrance release. However, certain current industrial microcapsules show low encapsulation capacity and lack of mechanical stability. Polysulfone (PSf) microcapsules are an emerging promising alternative as they have both high mechanical stability and notorious encapsulation capacity.In the present investigation, PSf/vanillin microcapsules have been prepared by phase inversion precipitation technique and characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). Vanillin release has been monitored by High Performance Liquid Chromatography (HPLC). 45% of vanillin encapsulation, from the total perfume added to the polymer solution, has been reached. A treatment to increase the amount of vanillin inside of capsules has also been proposed. Concerning perfume release, it has been detected that vanillin is more rapidly released in hard water than in pure water; but in both cases, vanillin was released continuously for more than 144 h(6 days).
机译：除其他外，纺织品洗涤剂和柔软剂行业一直在吸收最新的科学进展。例如微囊技术，以成功改善其最终产品。香水包封可以保护香水直至使用，并提供持久的香味释放。但是，某些当前的工业微胶囊显示出低的封装能力和缺乏机械稳定性。聚砜（PSf）微囊具有较高的机械稳定性和臭名昭著的封装能力，是一种新兴的有前途的替代品。在本研究中，PSf /香兰素微囊通过相转化沉淀技术制备并通过扫描电子显微镜（SEM）表征射线衍射（XRD）和热重分析（TGA）。香兰素的释放已通过高效液相色谱（HPLC）进行了监测。从添加到聚合物溶液中的全部香料中，香兰素的包封率达到了45％。还提出了增加胶囊内香兰素含量的治疗方法。关于香水的释放，已经发现香兰素在硬水中的释放比在纯水中的释放更快。但在两种情况下，香兰素均连续释放超过144小时（6天）。

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