环保型阻燃湿法合成革的研制

Preparation of the Environmentally Friendly Flame-retardant Wet-process PU Leather

用液态的磷酸酯阻燃剂对涤纶/棉配比基布进行浸渍处理,处理量占基布质量的5%(与基布质量比),可使基布达到美国FMVSS-302阻燃标准的B级阻燃效果。通过6种阻燃剂在聚氨酯树脂中的不同配比实验,考察了不同阻燃剂组合及其用量对聚氨酯树脂阻燃性能的影响。结果表明,氢氧化铝/间苯二酚双/磷酸酯(12/2/2,质量份,下同)复合阻燃剂配方体系所制试样燃烧速度为0mm/min,阻燃效果可达到A级;将其涂覆于阻燃处理的基布上即可制得环保型阻燃合成革,阻燃性能可以达到多国的阻燃标准。

Liquid phosphate ester flame retardants were applied onto polyester/cotton fabric at a loading of 5 wt% based on dry fabric via impregnation, resulting in a fabric with B level of United States FMVSS-302 standard. Six flame retardants were introduced into polyurethane to study the fire retardant effect. It was found that aluminum hydroxide/resorcinol dual/phosphate （12/2/2 by weight） composite fire retardant system may result in a combustion rate of 0 mm/min, achieving A level, from which environmentally friendly, fire-retardant synthetic leather could be produced.