Open Access

ARTICLE

Study on Factors Affecting Properties of Foam Glass Made from Waste Glass

by Yang Liu¹, Jianjun Xie^1,*, Peng Hao¹, Ying Shi¹, Yonggen Xu^2,3, Xiaoqing Ding^2,3

1 School of Material Science and Engineering, Shanghai University, Shanghai, China
2 Huichang New Material Co., Ltd., Xuancheng, China
3 Changda Thermal Insulation Technology Co., Ltd., Xuancheng, China

* Corresponding Author: Jianjun Xie. Email:

(This article belongs to the Special Issue: Renewable materials for sustainable development)

Journal of Renewable Materials 2021, 9(2), 237-253. https://doi.org/10.32604/jrm.2021.012228

Received 20 June 2020; Accepted 10 September 2020; Issue published 15 December 2020

Abstract

Foam glass is a new green material to make use of waste glass and is popular for its energy-saving and light weight features. The problems in the current study of foam glass is that its properties require improvement to match the growing demands of application specific standards. Properties of foam glass is related to its porous structure, which is affected by various factors. The influence of raw material component, foaming agents and sintering system on the porous structure and properties of foamed glass is studied. Density decreases with the decrease of quartz and barite content. Thermal conductivity is more affected by barite content, and the lowest thermal conductivity is obtained when 10% quartz and 6% borax are added. Compressive strength is more affected by borax content, and the highest compressive strength is obtained when 5% quartz, 10% barite and 6% borax are added. Foam glass samples with different porous structures and improved properties are obtained using graphite and CaCO₃ as foaming agents. Compared with the soldcommercial foam glass for thermal insulation materials, the compressive strength of samples prepared by using compound foaming agents is increased by a factor of 2–3 times higher. With porous structure and properties adjusted by the optimization of raw materials and foaming agent, there exists the potential for factories to produce foam glass with expanded application scope.

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Citations