Abstract
The aim of this work was to study the incorporation of lead containing TV tube glass waste as a method to provide alternative raw material for aluminous electrical porcelain. For this purpose, aluminous porcelain formulations containing up to 30 wt.% of TV tube glass waste as a replacement for traditional flux material (sodium feldspar) were pressed and fired in air at 1300 oC using a fast-firing cycle (< 60 min). X-ray diffraction (XRD), scanning electron microscopy (SEM), linear shrinkage, apparent density, water absorption, and electrical resistivity have been carried out. The results indicated that the aluminous porcelain pieces containing up to 30 wt.% of TV tube glass waste rich in PbO with water absorption between 0.42 and 0.45% and volume electrical resistivity between 1.91 and 2.93 x 1011 Ω.cm have high potential to work as electrical insulator material. This use of lead containing TV tube glass waste can contribute greatly to reducing the environmental impacts related to it, and also save the sources of non-renewable raw materials used in the electrical porcelain sector.
Highlights
Every year huge volumes of solid wastes from electric and electronic equipments (e-waste) are produced in many places around the world, including television sets containing one cathode ray tube[1,2,3,4]
After firing at high temperature, the aluminous porcelain is characterized by a highly dense microstructure composed of mullite and alumina particles embedded in an abundant glassy matrix
The aluminous porcelain formulations are mainly composed of kaolinite (Al2O3.2SiO2.2H2O), albite (NaAlSi3O8), alumina (α-Al2O3), quartz (SiO2), gibbsite (Al2O3.3H2O), goethite (Fe2O3.H2O), and micaceous mineral
Summary
Every year huge volumes of solid wastes from electric and electronic equipments (e-waste) are produced in many places around the world, including television sets containing one cathode ray tube[1,2,3,4]. In the solid waste management field an important issue is the final disposal of the cathode ray tube composed of different glasses, including the lead containing one. In view of the environmental impacts of the TV tube glass waste pollution, there is a critical need for an ecological and economical solution for the final disposal of this abundant solid waste material. After firing at high temperature, the aluminous porcelain is characterized by a highly dense microstructure composed of mullite and alumina particles embedded in an abundant glassy matrix.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
