【摘要】 将引发剂过硫酸钾(KPS)负载在MMT片层上制得负载型引发剂MMT-KPS-1和MMT-KPS-2。进而引发甲基丙烯酸(MAA)聚合制备聚甲基丙烯酸/蒙脱土(PMAA/MMT)纳米复合材料。采用X射线衍射(XRD)、热重分析(TG)、热分析(DTA)分别对负载引发剂和纳米复合材料进行表征。结果表明,KPS进入MMT的片层间,并且负载引发剂(MMT-KPS-1)的引发活性较KPS有所提高;所制备的PMAA/MMT纳米复合材料属于剥离型纳米复合材料,应用于皮革鞣制所得坯革的湿热稳定性、增厚率、抗张强度、撕裂强度都有所提高,鞣后浴液中铬含量显著降低。更多还原

【Abstract】 Supported initiator(MMT-KPS-1 and MMT-KPS-2) was synthesized by intercation initiator molecules in the galleries of montmorillonnite(MMT).The MMT-supported initiator was used to initate the methacrylic acid and prepare PMAA/MMT nanocomposite.The MMT-supported initiator and the structure of PMAA/MMT nanocomposite were chracterized by XRD,TG and DTA.The results indicated the successful intercation of initiation in the galleries of MMT layer.The effect of MMT-supported(MMT-KPS-1) initiator have been increased.The structure of PMAA/MMT nanocomposite belong to exfoliated nanocomposite.The wet-heat resistence,increment ratio,tensile strength and tear strength of tanned leather have been improved in a certain scale and the chromium content in the effluent can be reduced greatly.更多还原