Characterization and Properties of Polymer Diallyldimethylammonium Chloride/Montmorillonite Nanocomposite Tannage
Polymer diallyldimethylammonium chloride (PDM) was prepared by free radical cyclopolymerization via ammonium persulfate and sodium thiosulfate as initiator. Polymer diallyldimethylammonium chloride/montmorillonite nanocomposite tannage (PDM/MMT) was prepared using two-steps method: montmorillonite (MMT) was modified with diallyldimethylammonium chloride (DM) through cation exchange reaction, and then cyclopolymerization of DM was carried out by free radical initiation in presence of MMT. The structure of DM, PDM and DM in nanocomposite PDM/MMT determined by Fourier Transform Infrared Spectroscopy (FT-IR) and nuclear magnetic resonance (NMR) respectively. Nanocomposite tannage was applied in leather process and physics mechanical of performance of the resultant leather was measured. The results indicated that free radical polymerization of diallyldimethylammonium chloride could happen when montorillonite exist in reaction system. Five ring of polymer was formed and did not effect by montorillonite. XRD results indicated that the interlaminar distance of MMT in nanomaterial was reached biggest when the dosage of MMT was 5％, consistent with monomer translate ratio and characteristic viscidity of the polymer. Application results showed that nanocomposites tannage with 2％ chromate tanned leather would increase leather shrinkage temperature increment ratio, incrassation ratio, tensile strength and tear strength, compared with 2％ chromate tanned leather.
tannage montmorillonite cyclopolymerization ammonium salt
Dangge Gao Jianzhong Ma Bin Lv
College of Resource and Environment, Shaanxi University of Science and Technology, Xian 710021, Shaanxi, P.R.China
国际会议
北京
英文
143-152
2009-10-11（万方平台首次上网日期，不代表论文的发表时间）