Fire response of polyamide 6 with layered and fibrillar nanofillers

被引:18
作者
Cai, Guipeng [1 ,2 ]
Dasari, Aravind [1 ,3 ]
Yu, Zhong-Zhen [4 ]
Du, Xusheng [1 ]
Dai, Shaocong [1 ]
Mai, Yiu-Wing [1 ]
Wang, Jiyang [2 ]
机构
[1] Univ Sydney, CAMT, Sch Aerosp Mech & Mechatron Engn J07, Sydney, NSW 2006, Australia
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[3] Madrid Inst Adv Studies Mat IMDEA Mat, Madrid 28040, Spain
[4] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Dept Polymer Engn, Beijing Key Lab Preparat & Proc Novel Polymer Mat, Beijing 100029, Peoples R China
基金
澳大利亚研究理事会;
关键词
Flame retardancy; Polyamide; Carbon nanotubes; Clay; Nanocomposites; SILICATE NANOCOMPOSITES; NANOTUBE NANOCOMPOSITES; POLYMER NANOCOMPOSITES; THERMAL-DEGRADATION; FLAMMABILITY; CLAY; MONTMORILLONITE; PLASTICS;
D O I
10.1016/j.polymdegradstab.2010.01.026
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
To improve the fire retardancy performance of polyamide 6 (PA 6), layered silicates are used in combination with multi-walled carbon nanotubes (CNTs) to address the issue of packing density and uniformity of the protective inorganic barrier formed at the burning surface of the nanocomposites during combustion. Benzimidazolium is used to modify the silicate layers instead of conventional alkyl ammonium surfactants to tackle the issue of thermal stability. However, the poor dispersion of the modified layered silicates in PA 6 has a significant negative effect on the fire performance of the materials and offsets the positive effect of CNTs. Also, the results point to the apparent contradictions with different fire exposure tests; that is, significant reductions in heat release and mass loss rates in the cone calorimetry test do not imply a higher rating in the UL 94 vertical burning test. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:845 / 851
页数:7
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