The flame retardancy of epoxy resin including the modified graphene oxide and ammonium polyphosphate. Issue 6 (3rd June 2018)

• Record Type: Journal Article
• Authors: Ming, Gao; Li, Junfei; Zhang, Xiaoqian; Yue, Lina; Chai, Zhihua
• Is Part Of: Combustion science and technology. Volume 190:Issue 6(2018)
• Page Start: 1126
• Page End: 1140
• Publication Date: 2018-06-03
• Subjects: Graphene Oxide -- Ammonium Polyphosphate -- Epoxy Resins -- Flame Retardant -- Mechanical Properties; Combustion -- Periodicals; Combustion engineering -- Periodicals; 541.36105
• DOI: 10.1080/00102202.2018.1437727
• Languages: English
• ISSNs: 0010-2202

Abstract

ABSTRACT: A modified graphene oxide (MGO) was prepared by graphene oxide, boric acid, and 3-aminopropyltriethoxysilane in an ethanol aqueous solution using ultrasonic agitation. Its structure was characterized by the Fourier transform infrared Fourier transform infrared, X-ray diffraction, and elemental analysis. Subsequently, MGO as a synergist, accompanied with ammonium polyphosphate (APP), was incorporated into epoxy resins (EP) to improve its mechanical properties and flame retardancy. The flame retardancy of EP/APP/MGO nanocomposites was investigated by the limiting oxygen index (LOI) test, the UL 94 test and the cone calorimeter test (CCT). The LOI value of EP/APP/MGO nanocomposites reached 28.8% by addition of 15 wt% of flame retardant, and its UL 94 test reached V-0 rating. The CCT results revealed that MGO could significantly enhance flame retardant properties of EP/APP/MGO nanocomposites because of the denser structure of char residue. Here, MGO also enhanced the mechanical properties of EP.