Effect of imidazolium phosphate and multiwalled carbon nanotubes on thermal stability and flame retardancy of polylactide

被引：55

作者：

Hu, Yadong ^{[1
]}

Xu, Pei ^{[1
]}

Gui, Haoguan ^{[1
]}

Wang, Xiaoxi ^{[1
]}

Ding, Yunsheng ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Chem & Chem Engn, Key Lab Adv Funct Mat & Devices, Hefei 230009, Anhui, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 77卷

基金：

美国国家科学基金会;

关键词：

Polymer-matrix composites (PMCs); Thermal properties; Carbon nanotubes; POLY(LACTIC ACID); FLAMMABILITY PROPERTIES; POLYMER NANOCOMPOSITES; IONIC LIQUIDS; PLA;

D O I：

10.1016/j.compositesa.2015.06.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of composites based on polylactide (PLA), have been prepared by melt-blending with multiwalled carbon nanotubes (MWNT) and Tri(1-hydroxyethyl-3-methylimidazolium chloride) phosphate (IP) functionalized MWNT (MIP). The morphology, thermal stability and burning behavior of the composites were investigated by Field Emission Scanning Electron Microscopy (FESEM), Thermogravimetric Analysis (TGA) and Cone Calorimeter Test (CCT), respectively. Significant improvement in fire retardant performance was observed for the PLA/MIP composite from CCT (reducing both the heat release rate and the total heat release) and TGA (increasing the char residue) compared to PLA/MWNT. SEM and Raman spectroscopy were utilized to explore the surface morphology and chemical structure of the char residues. It revealed that the catalytic charring effect of IP, the physical crosslinking effect of MWNT, and the combined effect of both IP and MWNT (forming continuous and compact char layers) were very efficient in improving the flame retarding properties of PLA/MIP composite. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：147 / 153

页数：7

共 36 条

[1] Novel aligned hemp fibre reinforcement for structural biocomposites: Porosity, water absorption, mechanical performances and viscoelastic behaviour [J].