摘要
以聚醚多元醇、PAPI、泡沫稳定剂、催化剂、阻燃剂、发泡剂和玻璃纤维等为原料 ,制得了一种高密度、高阻燃硬质聚氨酯泡沫结构材料。探讨了组合聚醚、发泡剂、泡沫稳定性、阻燃剂等的类型及用量对材料性能的影响 ,确定了材料的适宜配方。实验结果表明 ,2种阻燃剂复合使用 ,每 10 0g聚醚混合物加入 15g复合阻燃剂、7～ 9g发泡剂HCFC 14 1b、5 %玻璃纤维 ,制得的增强阻燃聚氨酯结构泡沫材料的性能为 :泡沫密度 30 0kg/m3 ,导热系数 0 .0 5W /(m·K) ,压缩强度 5 .4 8MPa ,吸水率 0 .16g/10 0cm2 ,氧指数 2 7～ 2 8,该材料的性能达到或超过了国外同类产品的水平。
A polyurethane rigid foam with high density and flame retardant property was prepared from polyether polyol, polyaryl polyisocyanate (PAPI), stabilizer, catalyst, flame retardant agent, blowing agent, glass fiber and so on. The effects of type and amount of premixed polyether polyol, blowing agent, stabilizer, flame retardant agent on properties of the polyurethane rigid foam were discussed.A suitable formulation was determined. The results show that, when a complex flame retardant agent 15g, blowing agent 7～9 g and adequate amount of glass fiber were added in 100 g premixed polyether polyol, The polyurethane rigid foam has good properties. The foam density is 300 kg/cm 3, thermal conductivity is 0.05 W/(m·K), compression strength is 5.48 MPa, water absorption is 0.16 g/100cm 2, oxygen index is 27～28.The properties of the polyurethane rigid are equal or superior to those of imported products.
出处
《聚氨酯工业》
2001年第3期27-30,共4页
Polyurethane Industry
