PAA/ATP纳米复合材料的制备及其皮革阻燃性

Preparation of PAA/ATP Nanocomposite and Its Flame Retardancy for Leather

摘要:

采用γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)改性纳米凹凸棒土（ATP），制得表面含双键的凹凸棒土（O-ATP），进而与丙烯酸发生共聚反应，制备了聚丙烯酸/凹凸棒土（PAA/ATP）纳米复合材料，结果表明：成功制备了PAA/ATP纳米复合材料，ATP均匀地分散于PAA/ATP纳米复合材料中。当ATP的用量为1%时（以丙烯酸的质量为基准，下同），PAA/ATP纳米复合材料的外观稳定性和热稳定性均最好。将PAA/ATP纳米复合材料应用于绵羊蓝湿革的复鞣工序中，应用结果表明：ATP的引入有利于提高革样的阻燃性能、增厚性能。当ATP用量为1%时，PAA/ATP纳米复合材料复鞣后革样的阻燃性能最好。

Abstract:

Polyacrylic acid/attapulgite (PAA/ATP) nanocomposites were prepared by copolymerization of acrylic acid and the modified attapulgite which was obtained by γ-methacryloxy propyl trimethoxy silane(KH-570) modifying. The results showed that PAA/ATP nanocomposite was successfully obtained, and the ATP in PAA/ATP nanocomposite can be uniformly dispersed. The appearance stability and thermal stability of PAA/ATP nanocomposites were the optimal when When the amount of ATP in acrylic acid（AA）was 1%. It indicated that the flame retardancy and thickening properties of the leather had improved when the PAA/ATP nanocomposite was applied to the retanning process of wet blue sheep leather. Meanwhile, the flame retardancy of the leather after the retanning of the PAA/ATP nanocomposite was the optimal when the amount of ATP in acrylic acid（AA）was 1%.