Synergistic influence of halogenated flame retardants and nanoclay on flame performance of high density polyethylene and wood flour composites. Issue 40 (10th May 2017)

• Record Type: Journal Article
• Authors: Zhang, Jinlong; Wu, Qinglin; Li, Guangyao; Li, Mei-Chun; Sun, Xiuxuan; Ring, Dennis
• Is Part Of: RSC advances. Volume 7:Issue 40(2017)
• Page Start: 24895
• Page End: 24902
• Publication Date: 2017-05-10
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra03327c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : High density polyethylene and wood flour (HDPE/WF) composites containing three flame modifiers (FMs) ( i.e., two fire retardants: 1, 2-bis(pentabromophenyl) and ethylene bis(tetrabromophthalimide), and one nanoclay), maleic anhydride grafted polyethylene (MAPE) and other processing aids were prepared through twin-screw extrusion, and their properties were characterized. Abstract : High density polyethylene and wood flour (HDPE/WF) composites containing three flame modifiers (FMs) ( i.e., two fire retardants: 1, 2-bis(pentabromophenyl) and ethylene bis(tetrabromophthalimide), and one nanoclay), maleic anhydride grafted polyethylene (MAPE) and other processing aids were prepared through twin-screw extrusion, and their properties were characterized. The addition of FMs lowered the composite strength, but composite modulus did not change in a systematic manner. The fiber-polymer interfacial adhesion became increasingly deteriorated with the FM addition, and the use of MAPE coupling agent in the composites helped improve the interfacial adhesion. There was a synergistic effect of the fire retardants, nanoclay and MA- g -PE, especially for 1, 2-bis(pentabromophenyl)–clay–MAPE system, on thermal stability and fire retardancy with lowered heat release rate and total heat release of the composites, leading to significantly improved flame performance.