Distribution regulation improved EVA/PA6 (Ethylene-Vinyl Acetate/ Polyamide 6) flame-retardant composite material and preparation method of composite material

The invention discloses a distribution regulation improved EVA/PA6 (Ethylene-Vinyl Acetate/ Polyamide 6) flame-retardant composite material and a preparation method of the composite material. By virtue of distribution regulation modification, APP and PER in the intumescent flame retardant components are distributed in an EVA phase, the flame-retardant property of the EVA/PA6 polymer alloy is greatly improved, and the PA6 is modified by means of high-temperature heat treatment, so that the crystallinity degree of the PA6 is improved, and the chemical property and mechanical property of the PA6are further improved. In addition, the material is prepared by adopting the distribution regulation method, and the APP and PER in the intumescent flame retardant components are distributed in the EVAphase, so that the flame-retardant property of the EVA/PA6 polymer alloy is further improved. 种分布调控改良的EVA/PA6阻燃复合材料及制备方法，经过分布调控改性，膨胀阻燃剂组分中的APP、PER都分布于EVA相中，EVA/PA6聚合物合金的阻燃性能大幅度提升，采用高温热处理方式对PA6进行改性，从而提高PA6的结晶度，进步改善PA6的化学性能和力学性