表面活性剂辅助农药在锂皂石中的插层及其性能

刘洁翔, 刘蕊, 张晓光

Preparation and Property of Laponite with Pesticide Intercalation

LIU Jiexiang, LIU Rui, ZHANG Xiaoguang

表3 由准二级动力学和抛物线扩散模型拟合释放的数据

Table 3 Fitting parameters of LCT release from the composites by pseudo second-order and parabolic diffusion models

Samples Release medium Pseudo second-order model Parabolic diffusion model k R2 kd R2 LCT/SB-LAP pH 5.0 2.20 0.9910 0.143 0.9804 pH 6.8 1.83 0.9950 0.197 0.9639 LCT/DCB-SB-LAP pH 5.0 1.40 0.9987 0.0976 0.9923 pH 6.8 1.72 0.9972 0.130 0.9872 LCT/OA-SB-LAP pH 5.0 1.77 0.9995 0.130 0.9886 pH 6.8 1.71 0.9988 0.126 0.9837 LCT/CTAB-SB-LAP pH 5.0 2.58 0.9999 0.128 0.9759 pH 6.8 2.63 0.9998 0.123 0.9740