Thermally stable and flame-retardant poly(vinyl alcohol)/montmorillonite aerogel via a facile heat treatment  

作　　者：Ke Shang Wang Liao Yu-Zhong Wang 

机构地区：[1]Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry,Sichuan University

出　　处：《Chinese Chemical Letters》2018年第3期433-436,共4页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos. 51320105011,51121001 and 51603130);Program for Changjiang Scholars and Innovative Research Team in University(No. IRT. 1026);Key Science Project of Department of Education, Sichuan Province(No. 16ZA0004);Sichuan Province Youth Science and Technology Innovation Team (No. 2017TD0006)

摘　　要：Poly（vinyl alcohol）/montmorillonite aerogels with high thermal stability and flame retardancy were prepared with a facile heat treatment method, in which the poly（vinyl alcohol）/montmorillonite aerogels was first prepared by an eco-friendly freeze-drying method, following by a heat treatment process. The structure of the aerogels before and after heat treatment process was characterized by Fourier transform infrared spectroscopy （FTIR） and X-ray photoelectron spectroscopy （XPS）. The thermal stability of the aerogel treated for 3 h at 200 ℃ was improved significantly, which was accompanied by a slight decrease of mechanical property. Meanwhile, cone calorimetry （CC） test revealed that the flame-retardant performance of the heat treated aerogel was improved remarkably.Poly（vinyl alcohol）/montmorillonite aerogels with high thermal stability and flame retardancy were prepared with a facile heat treatment method, in which the poly（vinyl alcohol）/montmorillonite aerogels was first prepared by an eco-friendly freeze-drying method, following by a heat treatment process. The structure of the aerogels before and after heat treatment process was characterized by Fourier transform infrared spectroscopy （FTIR） and X-ray photoelectron spectroscopy （XPS）. The thermal stability of the aerogel treated for 3 h at 200 ℃ was improved significantly, which was accompanied by a slight decrease of mechanical property. Meanwhile, cone calorimetry （CC） test revealed that the flame-retardant performance of the heat treated aerogel was improved remarkably.

关 键 词：Aerogel Polyvinyl alcohol Clay Thermal stability Flame retardant 

分 类 号：O648.17[理学—物理化学]