Study on Alkali-Activated the TFT-LCD Waste Glass to SynthesizeFireproof Materials

• Main Authors: Shiu, HauShing, 許皓翔
• Other Authors: Lin, KaeLong
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/12744868056973255041

碩士 === 國立宜蘭大學 === 環境工程學系碩士班 === 100 === In 2013, the demand for Thin Film Transistor Liquid Crystal Display (TFT-LCD) panels was approximately 364 million square meters, or approximately 9.8×106 tons. According to a WEEE Directive, waste electrical and electronic equipment must be reused and recycled to reduce the amount of e-waste that is deposited in landfills. TFT-LCD waste glass comprises mainly SiO2 and Al2O3 and can be used to prepare geopolymers. This investigation explores the effect of solid/liquid ratio and SiO2/Na2O ratio on the properties of metakaolin-based geopolymer. TFT-LCD waste glass (0%- 40%) is recycled to replace metakaolin and thereby to reduce the amount of metakaolin that is produced. In this investigation, samples underwent a series of tests to determine their quality, including their setting time and compressive strength. Differential Thermal and Thermo-gravimetric Analysis (TG/DTA), Mercury intrusion porosimetry (MIP), Fourier transform infrared (FTIR) spectroscopy, Nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM) were also carried out. The results revealed that the compressive strength increased with curing time, SiO2/Na2O and solid/liquid ratio. The products of geopolymerization filled the pores, making the structure denser.