Robust composite aerogels with excellent flame retardant and thermal insulation properties based on modified hollow glass microspheres

doi:10.1016/j.polymdegradstab.2022.110030

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Robust composite aerogels with excellent flame retardant and thermal insulation properties based on modified hollow glass microspheres
	Niu, Ye 1; Wang, Shuo 1,2; Zhu, Zhaoqi 1; Su, Min 1; Wang, Yunjia 1; Yan, Lijuan 1; Ma, Yingjiao 1; Sun, Hanxue 1; Liang, Weidong 1; Li, An 1
刊名	Polymer Degradation and Stability
	2022-08-01
卷号	202
关键词	Aerogels Glass Historic preservation Microspheres Sodium Sodium alginate Thermal conductivity Ammonium polyphosphates Building blockes Building energy conservation Composite aerogel Flame-retardancy Hollow glass microspheres Modern buildings Performance Property-based Thermal insulation properties
ISSN号	0141-3910
DOI	10.1016/j.polymdegradstab.2022.110030
英文摘要	The development of high-performance flame-retardant materials with better thermal insulation properties is of great significance to modern building energy conservation. In this study, we report the facile and scalable fabrication of novel aerogels (SA-HGM-APP) based on the building blocks of ammonium polyphosphate (APP) coated hollow glass microspheres (HGM) and matrix material sodium alginate (SA) by freeze drying method. The as-prepared composite aerogel exhibits better thermal stability (decomposition temperature over 210°C). In addition, SA-HGM-APP composite aerogels have good thermal insulation properties and low thermal conductivity, which is 0.035 W m−1 K−1. More importantly, the peak heat release rate (pHRR) is 14.14 kW m−2, the limiting oxygen index (LOI) value is as high as 100%, and the aerogel composite material can reach UL-94 V-0 grade, so it shows excellent flame retardancy. These results attributed to a synergistic effect, which combines the rich porous structure derived from HGM, so that SA and APP have better thermal insulation and excellent non flammability, thus providing excellent flame retardancy. SA-HGM-APP aerogel composite has many advantages, such as simple preparation method and high mechanical strength. It has great potential in future thermal insulation and flame retardancy applications. © 2022
WOS研究方向	Polymer Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000824494600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159417]
专题	石油化工学院电气工程与信息工程学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China; 2.Department of Chemistry and Chemical Engineering, Ankang University, Shaanxi, Ankang; 725000, China
推荐引用方式 GB/T 7714	Niu, Ye,Wang, Shuo,Zhu, Zhaoqi,et al. Robust composite aerogels with excellent flame retardant and thermal insulation properties based on modified hollow glass microspheres[J]. Polymer Degradation and Stability,2022,202.
APA	Niu, Ye.,Wang, Shuo.,Zhu, Zhaoqi.,Su, Min.,Wang, Yunjia.,...&Li, An.(2022).Robust composite aerogels with excellent flame retardant and thermal insulation properties based on modified hollow glass microspheres.Polymer Degradation and Stability,202.
MLA	Niu, Ye,et al."Robust composite aerogels with excellent flame retardant and thermal insulation properties based on modified hollow glass microspheres".Polymer Degradation and Stability 202(2022).