Effects of carbon nanotubes on the thermal stability and flame retardancy of intumescent flame-retarded polypropylene

被引：95

作者：

Du, Baoxian ^{[1
]}

Fang, Zhengping ^{[2
,3
]}

机构：

[1] Aerosp Res Inst Mat & Proc Technol, Natl Key Lab Adv Funct Composite Mat, Beijing 100076, Peoples R China

[2] Zhejiang Univ, Ningbo Inst Technol, Lab Polymer Mat & Engn, Ningbo 315100, Zhejiang, Peoples R China

[3] Zhejiang Univ, Inst Polymer Composites, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2011年 / 96卷 / 10期

基金：

美国国家科学基金会;

关键词：

Flame retardant; Carbon nanotubes; Intumescent flame retardant; PP; FLAMMABILITY PROPERTIES; POLYMER NANOCOMPOSITES; COMPOSITES; MECHANISM; RHEOLOGY; BEHAVIOR; SYSTEMS;

D O I：

10.1016/j.polymdegradstab.2011.08.002

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Flame retardant mixtures of carbon nanotubes (CNTs) and intumescent flame retardant (IFR) were embedded in polypropylene (PP) to investigate what will happen if the additives exhibit two different flame retardation mechanisms. TEM tests showed that CNTs dispersed homogenously in PP matrix without any visible agglomeration. The effects of CNTs on thermal stability and flammability of PP were investigated by thermogravimetry (TG) and cone calorimetry tests, respectively. Results indicated that the introduction of CNTs only enhanced thermal stability of materials in a certain temperature range, but caused a severe deterioration of flame retardancy due to the interaction of the network structure and the intumescent carbonaceous char. Furthermore, conditions for an intumescent flame retardation system to behave with high efficiency were also discussed by a secondary combustion test. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1725 / 1731

页数：7

共 25 条

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