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常用阻燃剂及其工艺 o 硼砂/硼酸或磷酸二氢铵混合物 非耐久性阻燃剂，价廉、效果好，用于窗帘等不常洗织物。 可用浸轧、喷雾、涂刷等方法应用。
• Boric acid (H3BO3) /borax (Na2B4O7) are often used as non-durable flame retardants in applications such as cellulose fibers for insulation. Boron functions in the condensed phase as a lewis acid and as mentioned earlier, coats the fiber with a glassy polymer to insulate the polymer. o 金属氧化物或氯化物 常用锑、钛的氧化物或卤化物，处理纤维后经水解生成氢氧化锑或 钛沉积在纤维表面，作为纤维素的脱水剂，纤维燃烧时生成较多的 固体炭，挥发性物质减少，是一种半耐久性阻燃剂（经15次温和洗 涤），可用浸渍法加工，加工织物手感粗硬，强力下降30%左右。
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o 磷酸及其盐类 常用磷酸、磷酸氢二胺、磷酸二氢胺和聚磷酸胺，由于它们与纤 维素反应，使其燃烧时固体炭量↑，焦油及可燃性气体↓，有阻燃 作用，为半耐久阻燃剂，因对纤维损伤严重而不常应用。 Phosphorus compounds react with the C(6) hydroxyl of the anhydroglucose unit blocking the formation of levoglucosan. This reduces the amount of fuel to the flame. Additionally, phosphorous promotes char formation. The acidity associated with certain phosphorous analogues and its electrophilic nature lowers the activation energy for dehydrating cellulose. Additionally there is the possibility of crosslinking cellulose chains which further enhances char formation.
