Zhu Xiaodong, Liu Yu, Dong Ningwen, Li Zhao
Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin, Heilongjiang, 150040, China.
College of Materials and Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040, China.
Sci Rep. 2017 Dec 5;7(1):16933. doi: 10.1038/s41598-017-17238-9.
Leuco dyes are widely used as functional materials for their thermosensitive chromogenic nature. The influences of thermochromic compounds and impregnation processing conditions on thermochromic wood veneer properties were investigated in this paper. The thermochromic compounds included thermochromic dye (ODB-2), color developer (bisphenol A) and solvent (1-tetradecanol). To achieve the maximum color change, the optimum mixing ratio of ODB-2 to bisphenol A to 1-tetradecanol was 1:2:60. Juglans mandshurica veneers were ultrasonically impregnated with reversible thermochromic compound suspensions. Analysis of variance showed that the influences of impregnation parameters on veneer color change were significant at the 0.05 level. The optimum thermochromic wood veneer can be obtained by impregnating with a thermochromic compound suspension for 2.0 min at 65 °C. In this paper, the thermochromic properties of wood veneers were evaluated, and functional thermochromic veneers exhibited excellent properties and thermostability.
无色染料因其热敏显色特性而被广泛用作功能材料。本文研究了热致变色化合物和浸渍工艺条件对热致变色木皮性能的影响。热致变色化合物包括热致变色染料（ODB - 2）、显色剂（双酚A）和溶剂（十四醇）。为实现最大颜色变化，ODB - 2与双酚A至十四醇的最佳混合比例为1:2:60。用可逆热致变色化合物悬浮液对胡桃楸木皮进行超声浸渍。方差分析表明，浸渍参数对木皮颜色变化的影响在0.05水平上具有显著性。通过在65℃下用热致变色化合物悬浮液浸渍2.0分钟可获得最佳热致变色木皮。本文对木皮的热致变色性能进行了评估，功能性热致变色木皮表现出优异的性能和热稳定性。
