Preprint Article Version 1 This version not peer reviewed

Comparative Studies on Thermal, Mechanical, and Flame Retardant Properties of PBT Nanocomposites with Functionalized Amino-Carbon Nanotubes Modified by Different Oxidation State Phosphorus-containing Agents

Version 1 : Received: 15 January 2018 / Approved: 17 January 2018 / Online: 17 January 2018 (13:04:58 CET)

A peer-reviewed article of this Preprint also exists.

Zhu, S.-E.; Wang, L.-L.; Chen, H.; Yang, W.; Yuen, A.C.-Y.; Chen, T.B.-Y.; Luo, C.; Bi, W.-M.; Hu, E.-Z.; Zhang, J.; Si, J.-Y.; Lu, H.-D.; Hu, K.-H.; Chan, Q.N.; Yeoh, G.H. Comparative Studies on Thermal, Mechanical, and Flame Retardant Properties of PBT Nanocomposites via Different Oxidation State Phosphorus-Containing Agents Modified Amino-CNTs. Nanomaterials 2018, 8, 70. Zhu, S.-E.; Wang, L.-L.; Chen, H.; Yang, W.; Yuen, A.C.-Y.; Chen, T.B.-Y.; Luo, C.; Bi, W.-M.; Hu, E.-Z.; Zhang, J.; Si, J.-Y.; Lu, H.-D.; Hu, K.-H.; Chan, Q.N.; Yeoh, G.H. Comparative Studies on Thermal, Mechanical, and Flame Retardant Properties of PBT Nanocomposites via Different Oxidation State Phosphorus-Containing Agents Modified Amino-CNTs. Nanomaterials 2018, 8, 70.

Journal reference: Nanomaterials 2018, 8, 70
DOI: 10.3390/nano8020070

Abstract

High-performance poly(1,4-butylene terephthalate (PBT) nanocomposites have been developed via the consideration of phosphorus-containing agents and amino-carbon nanotube (A-CNT). One-pot functionalization method has been adopted to prepare functionalized CNTs via the reaction between A-CNT and different oxidation state phosphorus-containing agents, including chlorodiphenylphosphine (DPP-Cl), diphenylphosphinic chloride (DPP(O)-Cl), and diphenyl phosphoryl chloride (DPP(O3)-Cl). These functionalized CNTs, DPP(Ox)-A-CNTs (x = 0, 1, 3), were respectively mixed with PBT to obtain the CNTs-based polymer nanocomposites through a melt blending method. SEM observations demonstrated that DPP(Ox)-A-CNT nano-additives were homogeneously distributed within PBT matrix compared to A-CNT. The incorporation of DPP(Ox)-A-CNT improved the thermal stability of PBT. Moreover, PBT/DPP(O3)-A-CNT showed the highest crystallization temperature and tensile strength, due to the superior dispersion and interfacial interactions between DPP(O3)-A-CNT and PBT. PBT/DPP(O)-A-CNT exhibited the best flame retardancy resulting from the excellent carbonization effect. The radicals generated from decomposed polymer were effectively trapped by DPP(O)-A-CNT, leading to the reduction of heat release rate, smoke production rate, carbon dioxide and carbon monoxide release during cone calorimeter tests.

Subject Areas

carbon nanotubes; polymer-matrix nanocomposites; mechanical properties; flame retardancy

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