摘要： 采用紫外光固化的弹性丙烯酸树脂为基料,改性聚磷酸铵为阻燃剂,制备了聚氨酯泡沫用阻燃型弹性丙烯酸饰面涂料,通过正交试验对涂料配方进行了优化,确定了阻燃剂最佳含量为35%。考察了紫外光和太阳光对涂层拉伸强度的影响,紫外光4 h,太阳光7 d,涂层拉伸性能达到最佳;采用氧指数及质量损失评估了涂层的阻燃性能。

关键词: 阻燃, 弹性, 饰面涂料, 丙烯酸

Abstract: The fire-retardant elastic acrylic finishing coating applied on polyurethane foam was prepared with UV curable elastomeric acrylic emulsion as binder and modified ammonium polyphosphate(APP)as fire retardant. Orthogonal test was used to optimize the coating formulation, the best content of fire retardant was 35%. Effection of Uv and sun lights on coating tensile property were studied, and found that exoposure to Uv 4 h and sun light 7 d, the tensile strength reached the highest; coating fire property was evalated by use of oxygen index and mass loss.

Key words: fire resistance elastic, finishing coating, acrylic