三氟甲苯为分散介质的彩色电泳显示研究
发布时间：2018-11-11 11:05
【摘要】：本文以三氟甲苯为分散介质,制备了双色微胶囊电泳显示器件。优化了红色、黄色、蓝色、带正电的白色与带负电的白色五种电泳显示液配方,研究了一步法合成脲醛树脂微胶囊的制备工艺,探索了丝网印刷的涂布方法。得到的双色微胶囊电泳显示器件在低电压驱动下显示了较高对比度。采用正交试验和条件试验优化了三氟甲苯体系电泳显示液的配方,分别考察了红白、黄白、蓝白双色电泳液的最佳复配比例,并制备了相应的双色简易显示器件,对比度分别为2.95、1.41和3.93,响应时间与稳态均得到大幅度的提升,响应时间分别为305ms/348ms、140ms/371ms和512ms/415ms,并且均在断电30分钟内保持一定的稳定状态。以优化的三氟甲苯体系双色电泳显示液为芯材,以尿素-甲醛树脂为壁材,研究了一步法合成脲醛树脂微胶囊的制备工艺。考察了芯材的用量、明胶分散液浓度、SDS浓度、间苯二酚浓度、搅拌速度、pH值等条件对微胶囊的合成与形貌的影响。得到的脲醛树脂微胶囊球形度好,尺寸均匀,表面光滑,包覆率为15.56%,有效利用率为97.4%,在15V驱动电压下可实现电泳响应。探索了丝网印刷法的涂布工艺。以三氟甲苯体系微胶囊为涂布原料,考察了固化剂成分、固化剂用量、丝网目数以及涂布层数对涂布效果的影响,得到的微胶囊显示器件图像及颜色均匀,无涂布缺陷及涂痕,在15V的驱动电压下可以实现图像显示,制备的红白显示器件对比度为1.81。
[Abstract]:In this paper, two-color microcapsule electrophoresis display devices were prepared using trifluorotoluene as dispersion medium. Five kinds of electrophoretic display formulations, red, yellow, blue, positive white and negative white, were optimized. The preparation of urea-formaldehyde resin microcapsules by one-step method was studied, and the coating method of screen printing was explored. The two-color microcapsule electrophoretic display device shows high contrast under low voltage drive. Orthogonal test and condition test were used to optimize the formula of electrophoretic display liquid of trifluorotoluene system. The optimum mixture ratio of red white, yellow white and blue white electrophoretic solution was investigated, and the corresponding two-color simple display device was prepared. The contrast is 2.95 / 1.41 and 3.93, respectively. The response time and steady-state are greatly improved, and the response time is 305ms / 348ms / 140ms / 371ms and 512ms / 415ms, respectively. The one-step synthesis of urea-formaldehyde resin microcapsules was studied by using the optimized two-color electrophoretic display solution of trifluorotoluene as core material and urea-formaldehyde resin as wall material. The effects of the amount of core material, the concentration of gelatin dispersion, the concentration of SDS, the concentration of resorcinol, the stirring speed and the pH value on the synthesis and morphology of microcapsules were investigated. The urea-formaldehyde resin microcapsules have good sphericity, uniform size, smooth surface, covering rate of 15.56 and effective utilization ratio of 97.4.The electrophoretic response can be realized at 15V driving voltage. The coating technology of screen printing was explored. The effects of curing agent composition, curing agent dosage, mesh number and coating layer number on the coating effect were investigated using trifluorotoluene microcapsules as coating materials. The results showed that the image and color of the microcapsules were uniform, and there were no coating defects and smears. Image display can be realized at 15 V driving voltage. The contrast of the red and white display device is 1.81.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN141;TN27
，
本文编号：2324644
[Abstract]:In this paper, two-color microcapsule electrophoresis display devices were prepared using trifluorotoluene as dispersion medium. Five kinds of electrophoretic display formulations, red, yellow, blue, positive white and negative white, were optimized. The preparation of urea-formaldehyde resin microcapsules by one-step method was studied, and the coating method of screen printing was explored. The two-color microcapsule electrophoretic display device shows high contrast under low voltage drive. Orthogonal test and condition test were used to optimize the formula of electrophoretic display liquid of trifluorotoluene system. The optimum mixture ratio of red white, yellow white and blue white electrophoretic solution was investigated, and the corresponding two-color simple display device was prepared. The contrast is 2.95 / 1.41 and 3.93, respectively. The response time and steady-state are greatly improved, and the response time is 305ms / 348ms / 140ms / 371ms and 512ms / 415ms, respectively. The one-step synthesis of urea-formaldehyde resin microcapsules was studied by using the optimized two-color electrophoretic display solution of trifluorotoluene as core material and urea-formaldehyde resin as wall material. The effects of the amount of core material, the concentration of gelatin dispersion, the concentration of SDS, the concentration of resorcinol, the stirring speed and the pH value on the synthesis and morphology of microcapsules were investigated. The urea-formaldehyde resin microcapsules have good sphericity, uniform size, smooth surface, covering rate of 15.56 and effective utilization ratio of 97.4.The electrophoretic response can be realized at 15V driving voltage. The coating technology of screen printing was explored. The effects of curing agent composition, curing agent dosage, mesh number and coating layer number on the coating effect were investigated using trifluorotoluene microcapsules as coating materials. The results showed that the image and color of the microcapsules were uniform, and there were no coating defects and smears. Image display can be realized at 15 V driving voltage. The contrast of the red and white display device is 1.81.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN141;TN27
，
本文编号：2324644
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