广丰蒙脱土的有机改性、结构表征及应用研究

Organo-modification,Characterization and Application of Guangfeng Montmorillonite

以十六烷基三甲基溴化铵对广丰蒙脱土进行有机改性,以红外光谱、XRD、TG-DSC等手段对其结构进行了表征,研究发现有机改性后蒙脱土晶层间距达到2.250nm。将制备的有机蒙脱土添加于环氧树脂中,在含量为5%时环氧树脂的冲击强度和断裂强度明显提高,而添加3%可使环氧树脂热变形温度提高6.1℃。

Organic montmorillonite was prepared with organo- modified montmorillonite were characterized diffraction （XRD） and thermogravimetrie/differential d001 value is increased to 2. 250nm. Epoxy/clay was montmorillonite is 5% ,the impact strength cetyl trimethyl ammonium bromide（CTMAB）. The samples of by fourier transform infrared spectra （FTIR） , X -ray powder scanning calorimetry （TG - DSC）, the results showed that the prepared by intercalation method. When the dosage of organic and fracture intensity of the epoxy are significantly increased, and when the dosage of organic montmorillonite is 3%, the heat distortion temperature of epoxy can increase 6.1 ℃.