Facile preparation of attapulgite-based aerogels with excellent flame retardancy and better thermal insulation properties

doi:10.1002/app.47849

IR > 石油化工学院

	Facile preparation of attapulgite-based aerogels with excellent flame retardancy and better thermal insulation properties
	Liang, Weidong; Wang, Ran; Wang, Chengjun; Jia, Juan; Sun, Hanxue; Zhang, Jianli; Yang, Yueyue; Zhu, Zhaoqi; Li, An
	2019-08-20
发表期刊	JOURNAL OF APPLIED POLYMER SCIENCE
ISSN	0021-8995
卷号	136 期号:32
摘要	A novel and environmentally friendly attapulgite-based aerogel with a three-dimensional fibrillary network structure was prepared by incorporation of nanometer-sized natural clay crystals, in this case attapulgite (ATP), into degradable poly(vinyl alcohol) (PVA), cotton cellulose nanowhisker, and melamine using only a simple blending method and subsequently a freeze-drying process. The ATP-based aerogel exhibits an abundant porosity with an average mesopore size of 8.0 nm in diameter. Compared to fragile and rigid inorganic aerogels, the as-prepared aerogel shows good flexibility and mechanical strength with a compressive strength of 9.65 x 10(4) Pa and 10.19 x 10(4) Pa at 20% and 40% of compressive strain, respectively. The limiting oxygen index (LOI) and vertical flame tests show that the resulting aerogel possesses excellent flame retardancy, with an LOI of 59.5%. Microcalorimetry test results show that the total heat release of the aerogel is as low as 5.1 KJ/g. Also, the sample shows a better thermal insulation property, with a thermal conductivity of about 0.045 W m(-1) K-1 in air. Taking advantage of a simple and environmentally friendly fabrication, abundant natural clay resources, easy scalability, nearly no pollution emission in the process, and cost-efficient production, the ATP-based aerogel has great potential as ideal flame retardant and thermal insulation materials for many applications such as modern building construction or energy-efficient coatings. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47849.
关键词	composites flame retardance foams
DOI	10.1002/app.47849
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[51663012][51462021] ; Project of Collaborative Innovation Team, Gansu Province, China[052005] ; Innovation and Entrepreneurship Talent Project of Lanzhou[2017-RC-33]
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000467863200019
出版者	WILEY
EI入藏号	20191706827842
EI主题词	Aerogels
EI分类号	413.2 Heat Insulating Materials - 525.2 Energy Conservation - 641.1 Thermodynamics - 801.3 Colloid Chemistry - 802.3 Chemical Operations - 815.1.1 Organic Polymers - 933.1.1 Crystal Lattice - 951 Materials Science
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/31633
专题	石油化工学院发展规划处
通讯作者	Li, An
作者单位	Lanzhou Univ Technol, Coll Petrochem Engn, Dept Chem Engn, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
推荐引用方式 GB/T 7714	Liang, Weidong,Wang, Ran,Wang, Chengjun,et al. Facile preparation of attapulgite-based aerogels with excellent flame retardancy and better thermal insulation properties[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2019,136(32).
APA	Liang, Weidong.,Wang, Ran.,Wang, Chengjun.,Jia, Juan.,Sun, Hanxue.,...&Li, An.(2019).Facile preparation of attapulgite-based aerogels with excellent flame retardancy and better thermal insulation properties.JOURNAL OF APPLIED POLYMER SCIENCE,136(32).
MLA	Liang, Weidong,et al."Facile preparation of attapulgite-based aerogels with excellent flame retardancy and better thermal insulation properties".JOURNAL OF APPLIED POLYMER SCIENCE 136.32(2019).