可聚合脂肪酸表面活性剂：封装有机颜料，使其在水溶液中具有优异的胶体稳定性和憎水性

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2024-10-11 DOI:10.1016/j.dyepig.2024.112488

Yi-Yin Chen , Kang-Ting Huang , Chun-Jen Huang

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引用次数: 0

摘要

有机颜料色彩鲜艳、经久耐用，是各种应用中不可或缺的颜料，但其极性低，往往会阻碍其在水溶液中的分散，导致大量聚集和沉淀。为了解决这些局限性，人们对分散剂和封装技术进行了探索。本研究使用新型可聚合表面活性剂 11-甲基丙烯酰胺十一烷酸钠（NaMAAUA）与苯乙烯或甲基丙烯酸丁酯疏水性单体合成了纳米级封装颜料。NaMAAUA 含有一个两亲性脂肪酸悬垂基团，可用作分散剂和乳化剂，在颜料周围形成一个共聚物外壳。NaMAAUA 中的极性尾端可与颜料发生疏水作用，而极性羧基头团则暴露在水相中，可与纤维素形成强氢键。因此，封装后的颜料在应用于纸张和棉织物时表现出优异的分散稳定性、憎水性、耐洗牢度和抗紫外线性能，从而以环保的方式扩大了有机颜料的实用性。通过各种分析技术进行的表征验证了这种方法的有效性，为提高颜料的应用水平铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Polymerizable fatty acid surfactant: Encapsulation of organic pigments for excellent colloidal stability in aqueous solution and water-repellent property

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Polymerizable fatty acid surfactant: Encapsulation of organic pigments for excellent colloidal stability in aqueous solution and water-repellent property

Organic pigments are indispensable in various applications due to their vibrant colors and durability, yet their low polarity often hinders their dispersion in an aqueous solution, leading to large aggregation and sedimentation. To address these limitations, dispersants and encapsulation techniques have been explored. In this study, nanoscale encapsulated pigments were synthesized using a novel polymerizable surfactant, sodium 11-methacrylamidoundecanoic acid (NaMAAUA), along with hydrophobic monomer of styrene or butyl methacrylate. NaMAAUA contains a pendant group of amphiphilic fatty acid, and acts as a dispersant and emulsifier, forming a copolymer shell around the pigments. The apolar tail in NaMAAUA provides hydrophobic interaction with pigments, and the polar carboxyl headgroup exposes in the water phase and enables the formation of strong hydrogen bonds with cellulose. Therefore, the resulting encapsulated pigment exhibits excellent dispersion stability, water-repellent property, washing fastness and UV resistance when applied to paper and cotton fabric, expanding the practical utility of organic pigments in an environmentally conscious manner. Characterization via various analytical techniques validates the efficacy of this approach, paving the way for enhanced pigment applications.

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.