Improved Flame Retardancy and Mechanical Properties of Composite Material S-NiMgAl-Y/EVA

Abstract

The stearate surface modified LDHs S-NiMgAl-Y was rapidly synthesized based on the coprecipitation coupled with the microwave hydrothermal treatment. The cone calorimeter data confirmed that composite S-NiMgAl-Y/EVA has the good functions of both the flame retardancy and smoke/toxic gas suppression. The tensile strength of S-NiMgAl-Y/EVA was increased to the maximum value of 25.6 MPa when the addition of 10 wt.% S-NiMgAl-Y to EVA. This value is markedly larger than that of the pristine EVA equaling 20.8 MPa. The composite material developed in the present work greatly contributes to the processing and application of the fire retardant material.

Technical and Economic Analysis of Supercritical Water Oxidation and Biochemical Process for Lurgi Coal Gasification Wastewater Treatment

“…In recent years, application of SCWO process in LCGW treatment has been received extensive attention [7,8,9]. Studies show that the SCWO could give a removal efficiency of COD higher than 99% at 540 °C [7], and our non reported studies also show that the effluent could reach national discharge standard I (GB 8978-1996) [10,11,12].…”

“…In the SCWO process, the LCGW entered into the SCWO system directly without pretreatment process, and the treated effluent can be discharged directly. The whole process only needs O 2 as oxidant, and the finial oxidation product is mainly CO 2 and H 2 O (steam), which can be recycled as by-product to gain profit [11]. In addition, the SCWO system features automatization, compact structure, small space required, easy installation and maintenance.…”