以壳聚糖(CS)、磷酸和三聚氰胺为原料,通过化学反应制备出“三源一体”的高分子膨胀型阻燃剂(PCSM).采用红外光谱和核磁共振对其进行了结构表征,并研究了PCSM的热分解特性.探讨了PCSM在丁苯橡胶(SBR)中的阻燃作用,氧指数和垂直燃烧实验结果表明,当PCSM添加量为120phr时,氧指数可达29％,垂直燃烧级别为V-0级.随着PCSM添加量增加,阻燃SBR的拉伸强度和断裂伸长率虽然逐渐降低,但当PCSM添加量为120phr时,阻燃SBR样品的拉伸强度和断裂伸长率仍分别为8 MPa和798％.
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