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发明授权
CN109134939B 一种哌嗪改性木质素/氢氧化镁铝双重包覆红磷阻燃剂及其在PP中的应用 有权

一种哌嗪改性木质素/氢氧化镁铝双重包覆红磷阻燃剂及其在PP中的应用
摘要：
本发明公开了一种哌嗪改性木质素/氢氧化镁铝双重包覆红磷阻燃剂及其在PP中的应用，属于聚合物材料阻燃添加剂领域。以木质素作为阻燃剂的炭源，哌嗪作为阻燃剂的气源，红磷作为阻燃剂的酸源，氢氧化镁和氢氧化铝作为无机协效剂，制得所述的哌嗪改性木质素/氢氧化镁铝双重包覆红磷阻燃剂。本发明将可再生生物质木质素作为阻燃剂原料，实现了木质素在阻燃剂领域的应用，同时将红磷进行表面包覆可有效提高红磷的稳定性。本发明所制得的阻燃剂粒径小、尺寸稳定性好，可以改善阻燃剂与基体材料间的相容性。与此同时，哌嗪改性木质素/氢氧化镁铝双重包覆红磷阻燃剂用于聚丙烯树脂中，具有添加量少且阻燃效率高的优势。
摘要（英）：

The invention discloses a piperazine modified lignin/magaldrate dual-coated red phosphorus flame retardant and application of the flame retardant in PP, and belongs to the field of polymer material flame retardant additives. Lignin serves as a carbon source of the flame retardant, piperazine serves as a gas source of the flame retardant, red phosphorus serves as an acid source of the flame retardant, magnesium hydrate and aluminum hydroxide serve as an inorganic synergist, and the piperazine modified lignin/magaldrate dual-coated red phosphorus flame retardant is prepared. Reproducible biomasslignin is uses as a raw material of the flame retardant, application of the lignin in the field of flame retardants is achieved, and the red phosphorus is surface-coated so that the stability of thered phosphorus can be effectively improved. Moreover, when used in polypropylene resin, the piperazine modified lignin/magaldrate dual-coated red phosphorus flame retardant has the advantages of beingsmall in additive amount and high in flame-retardant efficiency.

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