硅／磷协同阻燃剂的制备及应用

以甲基三甲氧基硅烷（MS）为前驱体，高聚合度聚磷酸铵（APPⅡ）为载体，采用溶胶一凝胶工艺，制备硅／磷协同阻燃剂。通过电镜表征（SEM，TEM）发现该阻燃剂为硅／磷包覆结构，在详细讨论硅氧烷溶胶制备工艺的影响因素的基础上，将该阻燃剂与水性聚氨酯复合制成阻燃涂层剂，用于织物的阻燃涂层整理。结果表明，该阻燃剂相对APP而言，能赋予织物优异的阻燃、高强力及防“霜化”等效果。且随着硅／磷比增加，阻燃效果及织物强力和静水压均提高，并最终稳定；随着阻／胶比增加，阻燃效果提高，织物强力及静水压反而下降。

Production of Si/P Synergistic Flame Retardant and its Application

Synergistic flame retardant of ammonium polyphosphate enwrapped by silicone was synthesized in Sol-Gel process, with methyltrimethoxysilane （MS） as monomer, high molecular weight ammonium polyphosphate as carrier. And the enwrapped structure of flame retardant prepared above was confirmed by transmission electron microscope （TEM） and scanning electron microscope（SEM）. The effect of process conditions on the preparation of silicone sol and synergistic flame retardant was investigated in detail, too. Then, the flame retardant coating gum was constituted with above product and waterborne polyurethane, which was applied to finish the textile. The results showed that the textile finished has excellent flame retardance and high strength, and the effect of “frost-off” is very well; with Si/P ratio increasing, the effect of flame retardance and the strength, hydrostatic pressure of fabric increases up to invariability; with flame retardant/gum ratio fabric d teasing, escends. the effect of flame retardant increases and the strength, hydrostatic pressure of fabric descends.