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采用响应曲面法对超声波有机改性丝光沸石的工艺进行优化。在单因素试验的基础上,采用响应曲面法探讨十六烷基三甲基溴化铵(CTAB)的浓度、超声时间、超声温度对活化指数的影响;通过红外光谱和扫描电镜表征手段对改性后丝光沸石的结构和形貌进行表征。以改性后丝光沸石作原料来制备淀粉接枝丙烯酸/有机改性丝光沸石复合高吸水性材料,考察复合材料吸水性能。结果表明:超声法CTAB有机改性丝光沸石的优化条件为:CTAB浓度34.60mmol/L,超声时间67min,超声温度69℃。将优化条件下的有机改性丝光沸石作原料,得到的球状复合吸水剂的吸水倍率为638g/g。
The response surface method was used to optimize the ultrasonic modification of mordenite. On the basis of single factor experiment, the influence of CTAB concentration, ultrasonic time and ultrasonic temperature on the activation index was investigated by response surface methodology. The effects of CTAB on activation index were investigated by infrared spectroscopy and scanning electron microscopy The structure and morphology of the post-mordenite were characterized. The modified mordenite as raw material to prepare starch graft acrylic acid / organic modified mordenite composite superabsorbent materials, water absorption properties of the composite material. The results showed that the optimal conditions for ultrasonic modification of CTAB were as follows: CTAB concentration 34.60 mmol / L, ultrasonic time 67 min, ultrasonic temperature 69 ℃. Under the optimized conditions, the organomodified mordenite was used as raw material, and the water absorption ratio of the spherical composite water absorbent obtained was 638 g / g.