Preparation and Study of Borosilicate Foam Glass with High Thermal Insulation and Mechanical Strength  

作　　者：Yiwen Zhang Jianjun Xie Minghui Sun Shaolong Wang Tengfei Xu Yonggen Xu Xiaoqing Ding Ying Shi Lei Zhang 

机构地区：[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

出　　处：《Journal of Renewable Materials》2023年第5期2125-2141,共17页可再生材料杂志（英文）

基　　金：This work was supported by the Shanghai Municipal Natural Science Foundation,China(Granted No.[19ZR1418500]).

摘　　要：Foam glass is a kind of green building material that is widely used because of its excellent thermal insulation and mechanical properties.In this study,the borosilicate foam glass was fabricated by powder sintering method using recycled soda lime waste glass,quartz,and borax as the primary raw materials.CaCO_(3)was used as a foaming agent and Na_(2)CO_(3)as a flux agent.Results showed that as the quartz content decreases from 30 to 17.5 wt.%and borax content increases from 5 to 17.5 wt.%,the pore size,porosity,and thermal insulation of borosilicate foam glass increase significantly,while the compressive strength decreases slightly.When the content of quartz and borax are both 17.5 wt.%,borosilicate foam glass with outstanding performance can be prepared,whose pore distribution is uniform,mean pore size is 1.93 mm,total porosity is 83.44%,thermal conductivity is 0.0711W/(m⋅K),and compressive strength is 2.37 MPa.Finally,the influences of foaming agent content,flux agent content,foaming temperature,and holding time on the pore structure and various properties of borosilicate foam glass were investigated by orthogonal test.According to the results,the foaming temperature has a significant effect,and appropriate foaming agent content,flux agent content,and holding time help to form a uniform pore structure,thereby improving the thermal insulation and mechanical strength of the borosilicate foam glass.

关 键 词：Foam glass waste glass thermal conductivity compressive strength 

分 类 号：TQ328[化学工程—合成树脂塑料工业]