摘要
Abstract
Melamine cyanurate （MCA）, microcapsule red phosphorus （MCP）, and magnesium hydroxide[Mg（OH）2] were compounded with an intumescent flame retardant PNP to prepare a multi-component flame retardant. The performance of the flame retardants in low-density polyethylene/ethylene-vinyl acetate （PE-LD/EVA） blends was studied. When the matrix resins of PE-LD/EVA was 70/30, the content of complex flame retardants was 35%, the weight ratio of PNP/MCA was 3/2, the limited oxygen index reached 30. 8%. When weight ratios of PNP/MCA/ MCP=24/16/4 was used, the limited oxygen index was 32.3 %. A limited oxygen index of 30.9 % was observed at weight ratios of PNP/MCA/MCP/Mg（OH）2= 24/16/4/22, the vertical combustion level reached UL 94%, and the tensile strength was 11. 1 MPa, the elongation at break was 80. 6 %.关键词
低密度聚乙烯/乙烯-醋酸乙烯酯/膨胀型阻燃剂/无卤阻燃/协同效应Key words
low-density polyethylene/ethylene-vinyl acetate/intumescent flame retardant/non- halogen flame retardancy/synergistic effect分类
化学化工
