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Low‐alkali borosilicate glass microspheres from waste cullet prepared by flame synthesis
Author(s) -
Larionau Pavel,
Hujova Miroslava,
Michalková Monika,
Mahmoud Mokhtar,
Švančárková Anna,
Galusková Dagmar,
Parchoviansky Milan,
Bernardo Enrico,
Galusek Dušan,
Kraxner Jozef
Publication year - 2021
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.16144
Subject(s) - glass recycling , borosilicate glass , materials science , glass production , soda lime glass , glass microsphere , incineration , scrap , waste management , glass fiber , differential thermal analysis , chemical engineering , composite material , metallurgy , microsphere , engineering , physics , optics , diffraction
Although glass recycling is considered to be a default method for glass waste management, fine fractions of container soda‐lime glass, or cullet of other compositions are still landfilled. This happens despite existing alternatives. Success could lie in advanced upcycled products that bring higher economic motivation for the implementation in industry, but these are often connected to alternative ways of product synthesis. We provide an example of waste glass upcycling by the preparation of glass microspheres (GM) from specialty low‐sodium alumino borosilicate‐based glasses via flame synthesis (FS). GM and the precursors, either from colorless medical vials or glass fibers, were characterized by scanning electron microscopy (SEM), simultaneous thermal analysis coupled with differential thermal analysis (STA‐DTA), and image analysis. A dynamic corrosion test was performed and evaluated via ion‐coupled plasma with optical emission spectroscopy (ICP‐OES) to observe corrosion kinetics products. FS has proved to be a fast method of waste glass processing into GM. This article, besides the characterization of the starting material and final products, also suggests the possibility of processing for other landfilled waste glasses and also discusses the manufacturing of GM for water filters and fillers for polymers.