阻燃剂对聚氨酯阻尼涂料性能的影响

通过在聚氨酯涂料中添加氢氧化铝Al(OH)₃]、可膨胀石墨(EG)、三(2-氯异丙基)磷酸酯(TCPP),制备了兼具阻尼与阻燃性能的聚氨酯阻尼涂料。研究了3种阻燃剂对涂料力学性能、阻燃性能与阻尼性能的影响,研究结果表明:Al(OH)₃能提高材料的力学性能和阻燃性能,温度较低时,能提高阻尼性能,温度较高时,将降低阻尼性能;适量的EG能够显著提高材料阻燃性能与阻尼性能;TCPP可以提高材料的断裂伸长率,在添加量较少时,显著提高材料的阻燃性能,但材料阻尼性能有所降低。

Effect of Different Flame Retardants on Properties of Polyurethane Damping Coatings

Polyurethane damping coatings with both damping properties and flame retardancy are prepared by adding aluminum hydroxide Al(OH)₃], expandable graphite (EG), tris (2-chloroisopropyl) phosphate (TCPP). The effects of the three kinds of flame retardants on the mechanical, flame retardancy and damping properties of the coatings are studied. The results showed that Al(OH)₃ can improve mechanical and flame retardant properties of the materials, in addition, when the temperature is low, the damping performance is improved; when the temperature is high, the damping performance is reduced. Flame retardant and damping properties of the materials can be significantly improved by moderate EG. TCPP can improve the fracture elongation of the materials, and low dosage of TCPP can significantly improve flame retardant properties of the materials, but it can reduce damping properties of the materials.