环保型变色涂料制备及其在景观设计中的应用

金苗苗

摘 要：针对溶剂型变色涂料在制备和应用中的污染问题，提出一种以环氧树脂改性为成膜物的环保型变色涂料。本实验是以有机硅、环氧树脂以及丙烯酸单体为基础原料，利用聚合反应制备的有机硅改性环氧丙烯酸乳液为基础，以氯化钴为颜填料制备出一种环保型变色涂料。通过涂料的性能测试，研究了制备该涂料的最佳比例，实验结果为：在颜基比为2.8、变色颜料含量为19.37%，涂刷厚度80μm，颜填料研磨时间1.5h时制备出来的涂料，性能较为稳定，符合国家变色涂料制备标准。制备出来的涂料变色温度为41℃，变色时间为60s。

关键词：变色涂料;有机硅;环氧丙烯酸;环保材料

中图分类号：TQ630.7 文献标识码：A     文章编号：1001-5922（2021）10-0025-04

Preparation of Environmental Protection Color Changing Paint and Its Application in Landscape Design

Jin Miaomiao

（Yangling Vocational and Technical College， Xianyang 712100， China ）

Abstract：In view of the pollution problem in the preparation and application of solvent based color change coating， a kind of environmental protection color change coating with epoxy resin modified as film-forming material was proposed. This experiment is based on organic silicone， epoxy resin and acrylic monomers as the basic raw materials. Based on silicone modified epoxy acrylic emulsion prepared by polymerization， cobalt chloride is used as pigment and filler to prepare an environment-friendly color changing coating. Through the performance test of the coating， the best proportion of the coating was studied. The experimental results showed that when the ratio of pigment to base was 2.8， the content of discolored pigment was 19.37%， the thickness of brush was 80 μm， and the grinding time of pigment and filler was 1.5 h， the performance of the coating was relatively stable and met the national standard for the preparation of color change coating. The color change temperature of the prepared coating is 41 ℃ and the color change time is 60 s.

Key words：color change coating; silicone; epoxy acrylic acid; environmental protection materials

隨着时代的发展，变色涂料不仅在航空航天方面发挥重要作用，在生活中也能随处可见。在一些景观设计中加入变色涂料，能够丰富该景观设计的色彩，给人耳目一新的感觉。但目前中国所制备的可逆变色涂料大多都是以溶剂型材料为成膜剂，存在较大的污染。为寻找一种更为环保的可逆变色材料，孟令巧等（2020）对环保型水性涂料的研究进展及发展趋势做了深入探讨;于国玲（2018）则研究了几种新型水性树脂及涂料;张爱玲（2019）则研究了耐酸型耐水性丙烯酸脂及涂料的制备及性能。以上专家的研究为新型涂料的制备提供了大量的数据基础，但制备可逆性涂料变色性能不稳定。本研究在以上基础上，提出一种在景观中应用的环保型变色涂料，并对其进行性能验证。……