Combination effect of carbon nanotubes with graphene on intumescent flame-retardant polypropylene nanocomposites

Huang, Guobo and Wang, Shuqu and Song, Ping'An ORCID: and Wu, Chenglin and Chen, Suqing and Wang, Xu (2014) Combination effect of carbon nanotubes with graphene on intumescent flame-retardant polypropylene nanocomposites. Composites Part A: Applied Science and Manufacturing, 59. pp. 18-25. ISSN 1359-835X


A novel polypropylene (PP) nanocomposite was fabricated by the incorporation of intumescent flame retardant (IFR), carbon nanotubes (CNTs) and graphene into the PP matrix. Results from TEM indicate that IFR, CNTs and exfoliated graphene nanosheets are dispersed finely in the PP matrix, which is supported by the XRD analysis results. Thermogravimetric (TGA) results show that the addition of IFR, CNTs and graphene improved the thermal stability and the char yields of PP. The PP/IFR/CNTs/RGO nanocomposites, filled with 18 wt% IFR, 1 wt% CNTs and 1 wt% graphene, achieve the limiting oxygen index value of 31.4% and UL-94 V0 grade. Cone calorimeter data reveal that combustion behavior, heat release rate peak (PHRR) and average specific extinction area (ASEA) of PP decrease substantially when combination effects of IFR, CNTs and graphene intervene. For the PP/IFR/CNTs/RGO nanocomposites, the PHRR exhibits an 83% reduction and the time of ignition is delayed 40 s compared with neat PP.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 05 Jun 2017 22:23
Last Modified: 24 Nov 2021 00:33
Uncontrolled Keywords: A. Nano-structures; A. Polymer-matrix composites (PMCs); B. Thermal properties; Graphene; Combustion behavior; Cone Calorimeter data; Exfoliated graphene; Flame-retardant polypropylene; Heat Release Rate (HRR); Intumescent flame retardant; Limiting Oxygen Index; Polymer Matrix Composites (PMCs); Nanotechnology; Chemical Agents and Basic Industrial Chemicals; Chemical Products Generally; Organic Polymers; Solid State Physics;
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
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