The Synthesis of Phosphorus-Silicon Surface Modification of Magnesium Hydroxide and its Application on EVA Resin
A novel ethylene-vinyl acetate (EVA) composite was prepared through incorporating phosphorus-silicon modification of Magnesium Hydroxide (MH-P-Si).Herein, the synthesis of modified Magnesium Hydroxide was reported via 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO) and γ-glycidoxypropyl trimethoxysilane (KH560) as the phosphorus source and silicon source with a P-Si synergistic effect.Then, the obtained product was incorporated into the EVA to investigate their flame-retardant and mechanical performance.Limiting oxygen index (LOI) increased from 21% to 29.2% by incorporation of 50wt% MH-P-Si.On the other hand, the tensile strength of MH/EVA dropped almost 2.5 times, from16.8 in EVA dived to 6.8, whereas up to 9.4 by the addition of MH-P-Si.The morphology observation by scanning electron microscopy (SEM) indicated the dispersion of surface modified MH in EVA was remarkably improved than that of MH.It is reasonable to believe that the enhanced flame retardancy and improved mechanical properties are attributed to synergistic effect from respective elements (P and Si) and plus the Mg(OH)2.
X.D.Guo X.R.Liu S.M.Ma Y.F.Liu J.Z.Xu H.Y.Ma
College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
国际会议
杭州
英文
128-129
2018-06-14（万方平台首次上网日期，不代表论文的发表时间）