华中师范大学学报(自然科学版)2011,Vol.45Issue(1):88-94,7.
聚含氟丙烯酸酯/蒙脱土复合乳液的制备及性能研究
Preparation and properties of poly(fluorine-acrylate) /montmorillonite composite emulsion
摘要
Abstract
Poly(fluorine-acrylate)/montmorillonite(MMT) composite emulsion was prepared by a batch emulsion polymerization of using hexafluorobutyl acrylate as fuctional monomers and MMT as modifier. The structures of MMT and latex particles were characterized by Fourier transform infrared (FTIR), thermogravimetric analyses (TG) and X ray diffraction (XRD). The ratio of anionic emulsifier and non-ionic emulsifier, and the dosages of initiator, HFBM and organic montmorillonite (OMMT) on the properties of the emulsion were studied. The influences of the amount of HFBM and OMMT on the mechanical properties of latex film were also discussed. The analytical results indicated that the quaternary ammonium intercalated into the layers of MMT, and the d-spacing of modified clay with cetyl trimethyl ammonium bromide (CTAB) was increased from 1.60 nm to 2.20 nm. The preparation of poly(fluorine-acrylate)/montmorillonite (MMT) composite emulsion had higher conversion (90.42%) and the emulsion had less emulsion coagulating rate (0.72%) when mass ratio of anionic and non-ionic emulsifier was 3: 2 in the system of composit emulsifier, the amount of initiator was 1wt%, the HFBM was 9wt%. When the amount of HFBM and OMMT was 9wt% and 2wt% respectively, the latex film had higher tensile strength of 12.33 MPa.关键词
蒙脱土/乳液聚合/含氟单体/力学性能Key words
montmorillonite/ emulsions fluoropolymer/ mechanical properties分类
化学化工引用本文复制引用
柯友明,易英,吴欢,黄畴,郑志云..聚含氟丙烯酸酯/蒙脱土复合乳液的制备及性能研究[J].华中师范大学学报(自然科学版),2011,45(1):88-94,7.基金项目
国家863项目(2006AA03Z46). (2006AA03Z46)