Modification of POSS hybrids by ionic liquid simultaneously prolonging time to ignition and improving flame retardancy for polystyrene

doi:10.1007/s10965-020-02081-w

	Modification of POSS hybrids by ionic liquid simultaneously prolonging time to ignition and improving flame retardancy for polystyrene
	Guo, Yongliang; Cui, Jinfeng; Guo, Junhong; Zhang, Haojun; Wang, Lurong; Yang, Baoping
	2020-03-28
发表期刊	Journal of Polymer Research
ISSN	10229760
卷号	27 期号:4
摘要	Polystyrene (PS) with great flame retardancy has been achieved by addition of polyhedral oligomeric silsesquioxane (POSS). However, the POSS/PS composite showed easy-ignition behavior leading to fire hazard exposed. Aiming to prolong time to ignition (TTI) and improve flame retardancy simultaneously, using non-flammable modifier to decorate POSS is a facile method. Here, two kinds of POSS hybrids (POSS-ILs), denoted as POSS-EVIM and POSS-VIPSP, were synthesized by free radical copolymerization between vinyl POSS and two kinds of ionic liquid, commercial [EVIm]BF4 and Brønsted ionic liquid, respectively. The polystyrene-based composites (POSS-ILs/PS) were prepared by incorporated POSS-ILs into polystyrene. The results of thermal gravimetric analysis test evidenced that both POSS-ILs increased char yield and decreased decomposed rate of composites. Compared with neat PS, the TTI of POSS-ILs/PS was prolonged by 26 s and 21 s, and meanwhile, the fire hazard was decreased due to reduction of peak value of heat release rate (PHRR) and smoke release rate (PSPR) in cone calorimeter test. Scanning electron microscope observed compact residue of POSS-EVIM/PS and honeycombed residual morphology of POSS-VIPSP/PS, and additionally, both of these residual char possessed higher degree of graphitization than that of PS and POSS/PS in Raman spectrum, suggesting good physical barrier for matrix from heat and oxygen. Besides, the flexural strength of both POSS-ILs/PS composites were increased compared with neat PS. Taking the results above mentioned, POSS modified by ionic liquid can be a decent candidate to prolong time to ignition, simultaneously improve fire safety and mechanical properties for polymeric materials. © 2020, The Polymer Society, Taipei.
关键词	Fire hazards Free radicals Gravimetric analysis Oligomers Polystyrenes Scanning electron microscopy Smoke Thermogravimetric analysis Cone calorimeter Flame retardancy Free radical copolymerization Heat Release Rate (HRR) Physical barriers Polyhedral oligomeric silsesquioxanes Thermal gravimetric analysis Time to ignition
DOI	10.1007/s10965-020-02081-w
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000521958900001
出版者	Springer Science and Business Media B.V.
EI入藏号	20201508391962
EI主题词	Ionic liquids
EI分类号	801 Chemistry ; 804 Chemical Products Generally ; 815.1.1 Organic Polymers ; 914.2 Fires and Fire Protection
来源库	WOS
引用统计	被引频次：9[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/150820
专题	实验室建设与管理处石油化工学院图书馆
通讯作者	Yang, Baoping
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Dept Chem Engn, Lanzhou 730050, 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	Guo, Yongliang,Cui, Jinfeng,Guo, Junhong,et al. Modification of POSS hybrids by ionic liquid simultaneously prolonging time to ignition and improving flame retardancy for polystyrene[J]. Journal of Polymer Research,2020,27(4).
APA	Guo, Yongliang,Cui, Jinfeng,Guo, Junhong,Zhang, Haojun,Wang, Lurong,&Yang, Baoping.(2020).Modification of POSS hybrids by ionic liquid simultaneously prolonging time to ignition and improving flame retardancy for polystyrene.Journal of Polymer Research,27(4).
MLA	Guo, Yongliang,et al."Modification of POSS hybrids by ionic liquid simultaneously prolonging time to ignition and improving flame retardancy for polystyrene".Journal of Polymer Research 27.4(2020).