화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.19, No.6, 1916-1925, November, 2013
Production of alumino-borosilicate foamed glass body from waste LCD glass
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A foaming process for waste LCD glass is presented, in which waste LCD glass is recycled to produce alumino-borosilicate foamed glass, which can eventually be used as a heat-insulating material, a lightweight aggregate for civil engineering applications, or a carrier for sewage treatment. The effects on waste LCD glass foaming of a variety of carbon foaming agents, metal salt foaming agents, and bonding agents are examined, as well as other factors such as chemical composition, foaming temperature, and grain size of the raw materials from the waste LCD glass. After examining all the variables that influence the foaming process, it was confirmed that the waste LCD glass is suitable as a raw material for producing alumino-borosilicate foamed glass. The alumino-borosilicate foamed glass has excellent physical properties, with density less than 0.14 g/cm3, heat conductivity less than 0.054 W/(mK) @20 ℃, bending strength more than 35 N/cm2, compressive strength more than 39 N/cm2 and a coefficient of linear thermal expansion less than 4.5 × 10^(-6)m/m ℃. This clearly shows that the lightweight aluminoborosilicate foamed glass could be useful for various applications.
  1. Avtar AS, Wu Y, in: hester RE, Harrison RM (Eds.), Electronic Waste Management, 180, Royal Society of Chemistry, Cambridge (2009)
  2. Kopacek B, Proc. of the 19th Waste Management Conference of the IWMSA, ReLCD: Recycling and Re-Use of LCD Panels (2008)
  3. Kiyoshi S, Kazuya K, Yasunobu T, Japan Patent, 2000.024613. (2000)
  4. Kiyoshi S, Tadashi N, Japan Patent, 2001-305501. (2001)
  5. Kiyoshi S, Tadashi N, Japan Patent, 2001-305502 (2001)
  6. Kiyoshi S, Tadashi N, Japan Patent, 2001-337305 (2001)
  7. Iwao S, Japan Patent, 2002-346505. (2002)
  8. Honma T, Sharp Technology Journal., 92(17), 2005
  9. Martin R, Simon-Hettich B, Beckedr W, Proc Int Disp Workshops., 11(583) (2004)
  10. LCD Industries Research Committee, Japan Electronics and Information Technology Industries Association: Recycling of LCD Panel, http://home.jeita.or.jp/device/lirec/english/enviro/recycle.htm.
  11. Martin R, US Patent 2007/0193414 A1 (2007)
  12. Lee CT, Prospect. Ind. Chem., 3(2), 1 (2000)
  13. Lee CT, J. Korean, Industrial and Engineering Chemistry., 20(266) (2009)
  14. Lee CT, Park TM, Kim JM, Applied Chemical Engineering., 23(195) (2012)