Multiwalled carbon nanotubes and sepiolite nanoclays as flame retardants for polylactide and its natural fibre reinforced composites

被引：236
作者：
Hapuarachchi, T. Dhanushka [1 ,2 ,3 ]
Peijs, Ton [1 ,2 ,3 ,4 ]
机构：
[1] Queen Mary Univ London, Ctr Mat Res, London E1 4NS, England
[2] Queen Mary Univ London, Sch Mat Sci & Engn, London E1 4NS, England
[3] Nanoforce Technol Ltd, London E1 4NS, England
[4] Eindhoven Univ Technol, Eindhoven Polymer Labs, NL-5600 MB Eindhoven, Netherlands
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2010年 / 41卷 / 08期
关键词：
Hybrid; Nano-structures; High-temperature properties; Thermal analysis; Polylactide acid; LAYERED-SILICATE NANOCOMPOSITES; THERMAL-DEGRADATION BEHAVIOR; FLAMMABILITY PROPERTIES; MECHANICAL-PROPERTIES; FIRE RETARDANCY; POLYMER; POLYPROPYLENE; MORPHOLOGY; CLAYS; POLYETHYLENE;
D O I：
10.1016/j.compositesa.2010.03.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work aims to develop a fully bio-based polylactic acid (PLA) composite with improved flame retardancy, utilising the unique properties of sepiolite nanoclay (Sep) and multiwalled nanotubes (MWNT). The pyrolysis combustion flow calorimeter (PCFC) also known as the microcalorimeter was used to screen the various PLA nanocomposites with respect to their potential flammability performance. The heat release capacity (HRC) which is an indicator of a materials fire hazard, reduced by 58% for the PLA ternary system based on sepiolite and MWNTs. Thermal gravimetric analysis (TGA) showed significant improvements to the residual char towards the later stages of the thermal ramp. The PLA ternary nanocomposite showed a 45% reduction in peak heat release (PHRR) when tested in the cone calorimeter. A further noteworthy observation was the 25% reduction in PHRR upon the introduction of hemp fibre into the PLA nanocomposite system. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：954 / 963
页数：10
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