以酶解木质素、甲醛和间苯二胺为原料,通过正交试验制备酶解木质素-间苯二胺共聚物;以酶解木质素-间苯二胺共聚物为阻燃剂,自制微胶囊红磷为酸源,制备酶解木质素-间苯二胺共聚物/红磷/SBR阻燃复合材料,研究酶解木质素-间苯二胺共聚物用量对复合材料阻燃性能和物理性能的影响.结果表明:酶解木质素-间苯二胺共聚物的最佳工艺条件为木质素用量30 9,甲醛用量0.2 mol,间苯二胺用量0.1 mol,温度80℃,时间 3 min,氢氧化钠质量分数0.03;当酶解木质素-间苯二胺共聚物用量为60份、微胶囊红磷用量为10份,酶解木质素-间苯二胺共聚物/红磷/SBR阻燃复合材料的阻燃级别达FV-0,综合物理性能较好.%Copolymers of enzymatic hydrolyzed lignin, formaldehyde and meta-phenylene diamine were prepared using orthogonal design. The SBR composites containing the copolymer as flame re-tardant and microencapsulated red phosphorus as acid source were prepared. The effect of addition level of copolymer on the flame retardant property and physical property was investigated. The results showed that, the optimized formulation and preparation condition of copolymer were as follows: enzymatic hydrolyzed lignin 30 g,formaldehyde 0. 2 mol,metaphenylene diamine copolymer 0. 1 mol, temperature 80 °C , time 3 min,mass fraction of sodium hydroxide 0. 03. When the addition levels of the copolymer and microencapsulated red phosphorus were 60 and 10 phr respectively,the flame retardant rating of SBR composite reached FV-0, and the comprehensive physical property of that wasgood.
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