以共沉淀法与离子交换法制备丙戊酸钠插层Mg/Al-NO3-LDH,结合XRD、FT-IR、TG-DTA分析表明,丙戊酸钠进入LDH层间与层板相互作用形成超分子结构,使丙戊酸钠的热稳定性提高近100℃.提出了以共沉淀法制备丙戊酸钠插层Mg/Al-NO3-LDH,在LDH形成层板结构的过程中,形成中间态--溶胶-凝胶态,与离子交换法相比更易于客体进入层间.缓释实验表明,共沉淀法制备的产物具有良好的缓释性.
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