Completely biodegradable flame-retardant foaming material and preparation method thereof

The invention discloses a completely biodegradable flame-retardant foaming material and a preparation method thereof.The flame-retardant foaming material is prepared from, by mass, 15-20 parts of modified plant fiber, 10-15 parts of modified oil meal, 55-70 parts of polylactic acid and 0.5-1 part of antioxidant, the preparation method of the flame-retardant foaming material comprises the steps of pretreatment of the plant fibers and the oil meal, modification of the plant fibers and the oil meal, mixing granulation, heating foaming and the like, the preparation process of the preparation method is simple, and the flame-retardant foaming material produced through the method is good in foaming performance, can be completely biodegraded and meets the environmental protection requirement. 本发明公开了一种可完全生物降解的阻燃发泡材料及其制备方法，按质量份数，所述阻燃发泡材料包括改性植物纤维15-20份、改性油粕10-15份、聚乳酸55-70份、抗氧化剂0.5-1份，该阻燃发泡材料的制备方法包括植物纤维和油粕的预处理、植物纤维和油粕的改性、混合造粒、加热发泡等步骤，该制备方法的制备过程简单，该方法生产的阻燃发泡材料发泡性能良好，并且能够完全生物降解，符合环保要求。