Preparation and characterization of polysulfone microcapsules for perfume release
Preparation and characterization of polysulfone microcapsules for perfume release
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DOI：
10.1016/j.cej.2011.10.090
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发表时间：
2012-01-01
影响因子：
15.1
通讯作者：
Gumi, Tania
中科院分区：
文献类型：
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作者：
Pena, Brisa;Panisello, Cinta;Gumi, Tania
纺织洗涤剂和柔软剂行业等已经融入了最新的科学进步；例如微胶囊技术，成功地改进了他们的最终产品。香水封装可在使用前提供香水保护，并提供持久的香味释放。然而，目前某些工业微胶囊的封装能力较低且缺乏机械稳定性。聚砜（PSf）微胶囊是一种新兴的有前途的替代品，因为它们具有高机械稳定性和众所周知的包封能力。在本研究中，PSf/香草醛微胶囊是通过相转化沉淀技术制备的，并通过扫描电子显微镜（SEM）、X射线衍射（XRD）和热重分析（TGA）进行表征。通过高效液相色谱 (HPLC) 监测香草醛的释放。已达到添加到聚合物溶液中的香料总量的 45% 的香草醛包封率。还提出了一种增加胶囊内香草醛含量的治疗方法。关于香料释放，已检测到香草醛在硬水中比在纯水中释放得更快：但在这两种情况下，香草醛连续释放超过144小时（6天）。 (C) 2011 Elsevier B.V. 保留所有权利。
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). (C) 2011 Elsevier B.V. All rights reserved.