1. Improving thermal insulation properties of lightweight epoxy resin matrix composites with millimeter-sized hollow glass microspheres/epoxy hollow spheres.
- Author
-
Qiao, Yingjie, Li, Qiuwu, Li, Qi, Yang, Kun, Bai, Chengying, Zhang, Lili, Yao, Zhaoding, Wang, Peng, Zheng, Ting, Zhang, Xiaohong, and Wang, Xiaodong
- Subjects
- *
SPHERES , *THERMAL insulation , *THERMAL conductivity , *MICROSPHERES , *EPOXY resins , *THERMAL properties , *INSULATING materials , *CONSTRUCTION materials - Abstract
[Display omitted] • Millimetric hollow glass microspheres/epoxy(HGMs/EP) hollow spheres were prepared. • HGMs/EP hollow spheres showed low density and excellent mechanical properties. • A lightweight, thermal insulated EP composite with lattice structure was designed. • EP composites showed good thermal insulation properties. • Thermal insulation mechanism of the EP composites was proposed. In this study, a novel, lightweight, thermally insulated epoxy resin (EP) composite was designed and fabricated by arranging hollow glass microspheres/epoxy resin (HGMs/EP) hollow spheres and EP matrices using a combination of templates and a simple casting method. The designed HGMs/EP exhibited low density and excellent thermal insulation properties, and their size was of the order of millimeters. HGMs/EP hollow sphere–reinforced EP composites exhibit considerably lower density (0.73 ± 0.06 g/cm3; 39.16 % lower) and thermal conductivity (0.121 ± 0.016 W/(m·K); 37.31 % lower) than the traditional HGMs/EP composites with the same HGM content. Overall, the designed HGMs/EP hollow sphere–reinforced EP composites are excellent candidates for providing thermal insulation in construction materials. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF