喷涂型聚氨酯硬泡配方（28密度）

喷涂聚氨醋泡沫在建筑上大量用于冷库建造、屋顶和旧房维修，一般密度为40- 56kg/m3，以便能经得起在屋顶操作时的负荷，同夹心板材一祥，喷涂泡沫也要符台阻燃要求。


原料                                                             重量份数
季戊四醇一环氧丙烷一四溴邻苯二甲酸酐共聚物(羟值228，含涣32.6%)     80
聚氧化丙烯蔗糖聚醚多元醇(羟值570)                                   15
二乙基(二羟乙基胺基甲基)磷酸酯                                       5
三(2-氯乙基)磷酸酯                                                   19.7
有机硅表面活性剂                                                    1.5
三乙稀二胺                                                           4.0
H20                                                                  1.O
CFC-11                                                               50
PAPI                                                                 112
凝胶时间，秒                                                           70
密度                                                                0.0287
拉伸强度Kg/cm2                                                        2.74
燃烧速度(ASIM E- 84)                                                     15