Interfacial engineering of layered double hydroxide toward epoxy resin with improved fire safety and mechanical property

doi:10.1016/j.compositesb.2018.08.094

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源综合利用工程技术中心

	Interfacial engineering of layered double hydroxide toward epoxy resin with improved fire safety and mechanical property
	Li, Zhi; Liu, Zhiqi; Dufosse, Francois; Yan, Luke; Wang, De-Yi
刊名	COMPOSITES PART B-ENGINEERING
	2018-11-01
卷号	152 页码:336-346
ISSN号	1359-8368
DOI	10.1016/j.compositesb.2018.08.094
英文摘要	Aiming to imparting epoxy resin (EP) matrix with highly efficient fire safety and mechanical strength, the organically intercalated layered double hydroxide nanosheets (LDH-DBS) were functionalized by silica via electrostatic assembly. EP nanocomposite with resultant nanohybrid LDH-DBS@silica-1 was constructed and verified. Results showed that 3wt% LDH-DBS@silica-1 endowed EP matrix with self-extinguishment (close to V-1) in contrast to burning-to-clamp of EP/3LDH-DBS (EP with 3wt% LDH-DBS). Meanwhile, EP/3LDH-DBS@silica-1 (EP with 3wt% LDH-DBS@silica-1) possessed 63.3% and 29.2% lower peak heat release rate than EP and EP/3LDH-DBS separately, accompanied by remarkably reduced smoke and CO production. The mechanism study illustrated that the optimization of intumescent char accounted for improved fire safety due to the interfacial charring reaction toward stable cordierite (5SiO(2)center dot 2Al(2)O(3)center dot 2MgO) and smaller microcrystalline carbon. The spatially preferential assembly of silica on LDH nanosheets was proposed to contribute to the dynamic char reconstruction. In parallel, LDH-DBS@silica-1 enhanced glass transition temperature of EP by 8 degrees C. The more silica endowed EP matrix with progressively increased non-notched impact strength. In perspective, the interfacial engineering of LDH nanosheets offered an effective approach to strengthening fire safety of polymers.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34453]
专题	青海盐湖研究所_盐湖资源综合利用工程技术中心
推荐引用方式 GB/T 7714	Li, Zhi,Liu, Zhiqi,Dufosse, Francois,et al. Interfacial engineering of layered double hydroxide toward epoxy resin with improved fire safety and mechanical property[J]. COMPOSITES PART B-ENGINEERING,2018,152:336-346.
APA	Li, Zhi,Liu, Zhiqi,Dufosse, Francois,Yan, Luke,&Wang, De-Yi.(2018).Interfacial engineering of layered double hydroxide toward epoxy resin with improved fire safety and mechanical property.COMPOSITES PART B-ENGINEERING,152,336-346.
MLA	Li, Zhi,et al."Interfacial engineering of layered double hydroxide toward epoxy resin with improved fire safety and mechanical property".COMPOSITES PART B-ENGINEERING 152(2018):336-346.