用丁香醛和三聚磷酸钠交联剂制备的两种壳聚糖热致变色微胶囊对椴木板材表面涂层性能的影响

IF 2.9 3区 材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS
Coatings Pub Date : 2024-09-02 DOI:10.3390/coatings14091118
Jingyi Hang, Bo Zhang, Hongwei Fan, Xiaoxing Yan, Jun Li
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引用次数: 0

摘要

为了研究热致变色微胶囊对椴木板表面涂层性能的影响,在紫外线底漆中添加了丁香醛和三聚磷酸钠两种交联剂制备的微胶囊,并将其涂覆在椴木板表面。以丁香醛为交联剂的微胶囊比以三聚磷酸钠为交联剂的微胶囊对椴木板表面涂层的变色效果更好,且色差随温度的变化更明显。两种微胶囊对椴木板表面涂层光泽度的影响相对较弱。以丁香醛为交联剂的微胶囊对椴木板表面涂层光泽度的影响总体上随着微胶囊的增加而呈上升趋势,且变化趋势较为平缓。以含三聚磷酸钠的微胶囊为交联剂的椴木板表面涂层的光泽度随着微胶囊添加量的增加先增加后降低。添加丁香醛作为交联剂的微胶囊对椴木板表面涂层的可见光波段反射率没有明显影响。在两组样品中,以丁二醛为交联剂的椴木板表面涂层的硬度增加更为明显。两种微胶囊在椴木板表面涂层的附着力水平没有变化。两种微胶囊对椴木板表面的抗冲击性均无明显影响。综合分析,添加丁香醛作为交联剂的微胶囊含量为 4.0% 的椴木板表面涂层综合性能更好,表面形态更好,变色效果更好,力学性能适中。在 25 °C 时,色差为 21.0,反射率为 57.06%,硬度为 3H,附着力为 5,抗冲击性为 3。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Two Types of Chitosan Thermochromic Microcapsules Prepared with Syringaldehyde and Sodium Tripolyphosphate Crosslinking Agents on the Surface Coating Performance of Basswood Board
In order to investigate the effect of thermochromic microcapsules on the surface coating performance of basswood board, two types of microcapsules prepared with syringaldehyde and sodium tripolyphosphate crosslinking agents were added to a UV primer and coated on the surface of basswood board. The color-change effect of the surface coating on basswood board with microcapsules added with syringaldehyde as the crosslinking agent was better than that with microcapsules added with sodium tripolyphosphate as the crosslinking agent, and the color difference varied more significantly with temperature. The effect of the two types of microcapsules on the glossiness of the surface coating on basswood board was relatively weak. The glossiness of the surface coating on basswood board with microcapsules containing syringaldehyde as the crosslinking agent showed an overall increasing trend with the increase in microcapsules, and the change trend was relatively gentle. The glossiness of the surface coating on basswood board with microcapsules containing sodium tripolyphosphate as the crosslinking agent increased first and then decreased as the amount of microcapsules added increased. The addition of microcapsules with syringaldehyde as the crosslinking agent had no significant effect on the reflectance in the visible light band of the surface coating on basswood board. Among the two groups of samples, the hardness increase in the surface coating on basswood board with syringaldehyde as the crosslinking agent was more significant. The adhesion level of the coating on the surface of the basswood board with the two microcapsules did not change. Neither of the microcapsules had a significant effect on the impact resistance of the surface on basswood board. In the comprehensive analysis, the surface coating on basswood board with microcapsules added with syringaldehyde as the crosslinking agent at a content of 4.0% had better comprehensive performance, better surface morphology, better color-change effect, and moderate mechanical properties. The color difference was found to be 21.0 at 25 °C, the reflectivity was found to be 57.06%, the hardness was found to be 3H, the adhesion was found to be five, and the impact resistance was found to be three.
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来源期刊
Coatings
Coatings Materials Science-Surfaces, Coatings and Films
CiteScore
5.00
自引率
11.80%
发文量
1657
审稿时长
1.4 months
期刊介绍: Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material
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