Experimental Study of Nondestructive Separation for LCD Panel Glass Based on Ultrasonic Wave

Abstract

Abstract:

A nondestructive separation method for LCD panels was presented based on ultrasonic wave. With the aid of ultrasonic wave, the frame sealants between the upper glass substrate and the lower glass substrate of the LCD panel can be dissolved effectively by selecting the proper alkaline solutions or acidic solutions, and the coated layers of ITO on the glass substrate can also be dissolved.So the complete and clean glass substrates can be got and the rare and precious metal of indium can be extracted. The new LCD panels can be made of the recycling glass substrates and the recycling value of the wasted can be improved greatly.

Key words: LCD panel, ultrasonic, glass substrate, nondestructive separation

摘要：

提出了一种基于超声波的LCD面板无损分离方法。适当地选择碱性溶液或酸性溶液，在超声波的辅助作用下，可以有效地溶解LCD上下玻璃基板之间的封框胶，去除玻璃基板上的ITO镀层，从而得到完整、清洁的玻璃基板，同时可以回收稀贵金属铟。所得的玻璃基板可用于生产新的LCD面板，大大提高其回收价值。

关键词: LCD面板, 超声波, 玻璃基板, 无损分离

CLC Number:

X705

Wang Yulin;Jiang Hao;Zhao Kai;Liu Guangfu. Experimental Study of Nondestructive Separation for LCD Panel Glass Based on Ultrasonic Wave[J]. China Mechanical Engineering, 2013, 24(20): 2780-2784.

王玉琳;蒋浩;赵凯;刘光复. 基于超声波的LCD面板玻璃无损分离实验研究[J]. 中国机械工程, 2013, 24(20): 2780-2784.

References

[1]庄绪宁[1],贺文智[1],李光明[1],黄菊文[1],王华[1].废液晶显示屏的环境风险与资源化策略[J].环境污染与防治,2010(5):97-99.
[2]罗丽平[1],贠向南[1],金基用[1].TFT-LCD生产及发展概况[J].现代显示,2012(3):31-38.
[3]李金惠,温雪峰.电子废物处理技术[M].北京:中国环境科学出版社,2006:5-7.
[4]Wang Heyuan, A Study of the Effects of LCD GlassSand on the Properties of Concrete[J]. Waste Man-agement *2009 ,29(1):335-341.
[5]Wang Heyuan, A Study of the Engineering Proper-ties of Waste LCD Glass Applied To ControlledLow Strength Materials Concrete [J ]. Constructionand Building Material,2009 ,23(6) : 2127-2131.
[6]Lin K L,Wang N F,Shie J L,et al. Elucidating theHydration Properties of Paste Containing Thin FilmTransistor Liquid Crystal Display Waste Glass[J].Journal of Hazardous Materials,2008,159(2/3):471-475.
[7]Lin K L, Huang W J, Shie J L,et al. The Utiliza-tion of Thin Film Transistor Liquid Crystal DisplayWaste Glass as a Pozzolanic Material[J] . Journal ofHazardous Materials.2009,163(2/3) : 916-921.
[8]Lin K L,Chang W K,Chang T C,et al. RecyclingThin Film Transistor Liquid Crystal Display (TFT—LCD) Waste Glass Produced as Glass — ceramics[J]. Journal of Clean Production, 2009,17(16):1499-1503.
[9]Jeon S H,Min K S,Soh Y S. The Characteristics ofP. H. C Pile Using Admixture by Waste TFT—LCDSociety,2010,47(5) :419-425.
[10]Li Jinhui, Gao Song, Duan Huabo,et al. Recov-ery of Valuable Materials from Waste Liquid Crys-tal Display Panel [J]. Waste Management, 2009,29(7):2033-2039.
[11]呋喃改性胺固化环氧树脂的耐强碱性研究[J].玻璃钢/复合材料,2011(3):38-41.
[12]唐忠锋 [1],刘平桂 [2],赫丽华 [2],梁兴泉 [3],林宝凤 [3].端硅氧烷基低聚物／环氧树脂复合体系的耐酸碱性能研究[J].材料工程,2005(7):47-50.
[13]唐忠锋[1,2,3],周小柳[1],刘平桂[4].端硅氧烷基低聚物／环氧树脂复合体系的耐化学介质研究[J].涂料工业,2008,38(8):13-16.
[14]聂耳[1],罗兴章[1],郑正[1],盛名[1].液晶显示器液晶处理与铟回收技术[J].环境工程学报,2008,2(9):1251-1254.
[15]郑顺德.从ITO废靶中分离回收铟、锡的研究[D].中南大学,2005:
[16]徐东升.利用ITO靶材回收制备金属铟[D].北京化工大学,2008: