Multifunctional graphene-based nano-additives toward high-performance polymer nanocomposites with enhanced mechanical, thermal, flame retardancy and smoke suppressive properties

[Display omitted] •A multifunctional graphene-based nano-additive (Mo/PN-rGO) has been prepared.•1 wt% of Mo5/PN-rGO increases tensile strength and modulus of ABS by 28% and 58%, respectively.•1 wt% of Mo5/PN-rGO increases the initial degradation temperature of ABS by 21 °C.•The addition of Mo5/PN-r...

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Bibliographic Details
Published in:	Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2021-04, Vol.410, p.127590, Article 127590
Main Authors:	Huang, Guobo, Chen, Wei, Wu, Tao, Guo, Haichang, Fu, Chaoying, Xue, Yijiao, Wang, Kai, Song, Pingan
Format:	Article
Language:	eng
Subjects:	Acrylonitrile-butadiene-styrene (ABS) Fire retardancy Mechanical property Smoke release Thermal property
Online Access:	Get full text
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Summary:	[Display omitted] •A multifunctional graphene-based nano-additive (Mo/PN-rGO) has been prepared.•1 wt% of Mo5/PN-rGO increases tensile strength and modulus of ABS by 28% and 58%, respectively.•1 wt% of Mo5/PN-rGO increases the initial degradation temperature of ABS by 21 °C.•The addition of Mo5/PN-rGO significantly reduce the ignitability of ABS.•The peak heat release rate and peak smoke production rate are respectively reduced by 51% and 60%. Despite many important industrial applications, the acrylonitrile–butadienestyrene copolymer (ABS) suffers from an inherent flammability, extremely hampering its practical use. Current flame retardants can effectively reduce the flammability issue but give rise to degraded mechanical and thermal properties of ABS. To address this intractable challenge, a graphene-derived flame retardant (Mo5/PN-rGO) was designed by introducing the functional elements (phosphorus, nitrogen and molybdate) onto the graphene oxides nanosheets. The resultant ABS nanocomposite containing 1.0 wt% of Mo5/PN-rGO exhibits a 28% increase in the tensile strength and a 58% enhancement in the Young’s modulus as compared to the ABS host. Furthermore, the glass transition temperature (Tg) increases by ca. 12 °C while the onset thermal decomposition temperature is significantly delayed by ca. 21 °C. In addition, the final ABS nanomaterial shows a 20% reduction in the total heat release and a 45% decrease in the total smoke production in comparison to the ABS bulk. This work paves a new way for the creation of high-performance flame retardants towards advanced flame-retardant polymer nanocomposites with expandable industrial applications.
ISSN:	1385-8947 1873-3212