用于微胶囊的荧光三聚氰胺-甲醛/多胺涂层，使其能够在复合材料中跟踪。

IF 3 4区医学 Q2 CHEMISTRY, APPLIED

Journal of microencapsulation Pub Date : 2022-09-01 Epub Date: 2022-10-28 DOI:10.1080/02652048.2022.2137593

Christian Neumann, Sophia Rosencrantz, Andreas Schmohl, Latnikova Alexandra

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引用次数: 1

摘要

本研究旨在开发用于预制微胶囊标记及其在复合材料中跟踪的荧光三聚氰胺-甲醛（MF）/多胺涂层。通过红外光谱、热重分析和元素分析研究了荧光MF涂层的组成。利用光学和荧光显微镜以及荧光光谱研究了涂层的特性及其在不同表面上的沉积。MF预聚物与三胺和多胺聚合，在不添加荧光染料的情况下产生荧光涂料。MF/聚乙烯亚胺和MF/聚乙烯胺（PVAm）涂层玻璃珠在λmax的激发波长下均显示出最大荧光 = 360 nm，发射最大值为λmax = 490 nm和λmax = 410 nm。将MF/PVAm聚合物涂覆在敌草隆-聚甲基丙烯酸甲酯微胶囊上，并在高度填充的复合材料（水性石膏/涂料）中进行跟踪，以显示其适用性。MF/聚胺涂层被认为是用于预制微胶囊荧光标记的有前途的材料。

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Fluorescent melamine-formaldehyde/polyamine coatings for microcapsules enabling their tracking in composites.

This study aimed the development of fluorescent melamine-formaldehyde (MF)/polyamine coatings for labelling of prefabricated microcapsules and their tracking in composites. The composition of the fluorescent MF coatings was studied by FTIR spectroscopy, thermogravimetric analysis, and elemental analysis. The characteristics of the coatings and its deposition on different surfaces were investigated using optical and fluorescence microscopy and fluorescence spectroscopy. MF prepolymers were polymerised with tri- and polyamines yielding in fluorescent coatings without addition of fluorescent dyes. Both, MF/poly(ethylene imine) and MF/poly(vinyl amine) (PVAm) coated glass beads showed maximum fluorescence at an excitation wavelength of λ_max = 360 nm with the emission maxima at λ_max = 490 nm and λ_max = 410 nm, correspondingly. The MF/PVAm polymer was coated on diuron-poly(methyl methacrylate) microcapsules and tracked in highly filled composites (water-based plaster/paint) to show its applicability. MF/polyamine coatings were identified as promising materials for the fluorescent labelling of prefabricated microcapsules.

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来源期刊

Journal of microencapsulation 工程技术-工程：化工

CiteScore

6.30

自引率

2.60%

发文量

审稿时长

3 months

期刊介绍： The Journal of Microencapsulation is a well-established, peer-reviewed journal dedicated to the publication of original research findings related to the preparation, properties and uses of individually encapsulated novel small particles, as well as significant improvements to tried-and-tested techniques relevant to micro and nano particles and their use in a wide variety of industrial, engineering, pharmaceutical, biotechnology and research applications. Its scope extends beyond conventional microcapsules to all other small particulate systems such as self assembling structures that involve preparative manipulation. The journal covers: Chemistry of encapsulation materials Physics of release through the capsule wall and/or desorption from carrier Techniques of preparation, content and storage Many uses to which microcapsules are put.