以结晶紫内酯、双酚A和十四醇为原料,制备热致变色复配物。通过正交试验,确定三者之间的比例为m(结晶紫内酯)∶m(双酚A)∶m(十四醇)=1∶4∶70,搅拌温度为70℃、搅拌时间为2h,在此条件下制备的热致变色复配物变色效果最好。以热致变色复配物为芯材,明胶-阿拉伯树胶为壁材,通过复凝聚法制备热致变色微胶囊,在高剪切分散乳化机转速为3500r/min、固化时间为3h时,可获得表面光滑的球状微胶囊。制备的热致变色微胶囊变色性能、耐热性能及耐酸碱性能良好。
A thermochromic compound was prepared by using crystal violet lactone,bisphenol A and tetradecanol as raw materials.Through orthogonal experiments,the ratio between the three was determined to be m(crystal violet lactone)∶m(bisphenol A)∶m(tetradecanol)=1∶4∶70,and stirring temperature was 70℃ and stirring time was 2h,the thermochromic compound prepared under these conditions had the best discoloration effect.The microcapsules were prepared by the complex coacervation method using the thermochromic compound as the core material and gelatin-arabin gum as the wall material.The preparation conditions were as follows:the emulsification speed was 3500r/min,and the curing time was 3h,the spherical microcapsules with surface smooth were obtained.Prepartion of thermochromic microcapsule with good color-changing properties,heat resistance and acid-base resistance.
[1] 焦剑,姚军燕.功能高分子材料[M].北京:化学工业出版社,2016.
[2] 徐栋,陈宏书,王结良.变色材料的研究进展[J].兵器材料科学与工程,2011,34(3):87-91.
[3] 葛婧媛,杨文芳.变色材料在纺织品上的应用[J].染整技术,2007,29(10):5-9.
[4] 李文戈,朱昌中,王文芬,等.可逆热致变色材料[J].功能材料,1997(4):337-341.
[5] 韩路路,毕良武,赵振东,等.微胶囊的制备方法研究进展[J].生物质化学工程,2011,45(3):41-46.
[6] 高燕.热致变色微胶囊的制备及在纺织上的应用研究[D].上海:东华大学,2015.
[7] 王东辉,赵裕蓉.微胶囊的应用及研究进展[J].化工新型材料,1999(7):11-14.
[8] 杨佳,侯占群,贺文浩,等.微胶囊壁材的分类及其性质比较[J].食品与发酵工业,2009,35(5):122-127.
[9] 于永,高艳阳.三芳甲烷苯酞类可逆热致变色材料[J].化工技术与开发,2006,35(10):26-29.
[10] 张宝砚,李远明,姜功臣,等.以孔雀绿内酯为变色剂的可逆示温涂料的研究[J].化工新型材料,1996(10):9-10.
[11] Seeboth A,Klukowska,Ruhmann R,et al.Thermochromic polymer materials[J].Chinese Journal of Polymer Science,2007,25(2):123-135.