Halogen-free flame-retardant thermoplastic polyurethane nano composite material and preparation method thereof

The invention belongs to the field of preparation of flame retardants, and particularly relates to a halogen-free flame-retardant thermoplastic polyurethane nano composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 58.8 to 59.7 parts of thermoplastic polyurethane and 0.3 to 1.2 parts of a hybrid flame retardant, whereinthe hybrid flame retardant is a layered titanium carbide-molybdenum trioxide hybrid flame retardant. The nano composite material prepared by the preparation method can realize efficient flame retardance, smoke suppression and toxicity reduction, reduces the fire hazard, and is simple in preparation principle and method. 本发明属于阻燃剂制备领域，具体涉及一种无卤阻燃型热塑性聚氨酯纳米复合材料及其制备方法。所述复合材料包括以下重量份的组份：热塑性聚氨酯58.8-59.7份，杂化阻燃剂0.3-1.2份；所述杂化阻燃剂为层状碳化钛-三氧化钼杂化阻燃剂。本发明所制备得到的纳米复合材料可以实现高效阻燃和抑烟减毒，降低其火灾危险性，且制备原理、方法简单。