PVC用ZnAlLa-CO_3^(2-)类水滑石的制备与表征  

The preparation and characterization of ZnAlLa-CO_3^(2-) hydrotalcite using for PVC

作　　者：孙玉莲[1] 黄怀忠 王一凡[1] 朱健[1] 冯伟胜 周建良[1] 

机构地区：[1]中南大学化学化工学院,长沙410083 [2]梅州五指石科技有限公司,广东梅州514631

出　　处：《华中师范大学学报（自然科学版）》2011年第3期430-434,共5页Journal of Central China Normal University：Natural Sciences

基　　金：广东省教育部产学研结合项目(2008B090500157);中南大学学位论文创新基金(2011ssxt079)资助项目

摘　　要：以锌、铝、镧硝酸盐为原料,采用阴离子交换法制得ZnAlLa-CO32-类水滑石,通过XRD、FT-IR分析样品的物相结构、结晶度以及插层阴离子的种类.结果表明,在制备条件为:n(La3+)/n(Al 3+)不高于1/8,pH=8.0,阴离子交换时间为1.0～2.0h,碳酸钠为理论所需用量的2倍时,得到了结晶度好、纯度高的ZnAlLa-CO23-类水滑石.The ZnA1La-CO3^- hydrotalcite was synthesized by anion exchange with nitrate of zinc, aluminum and lanthanum, and the phase structure, crystallinity and species of intercalated anion were characterized by XRD and FT-IR. The results showed that ZnAlLa CO3^2＋ hydrotalcite with high crystallinity and purity can be synthesized by the method mentioned when n（La3＋）/ n（AP＋） was not more than 1/8,pH：8.0, the time of anion exchange was 1.0-2.0 h and the dosage of sodium carbonate was equal to the double stoffmenge in the theory of requirements.

关 键 词：前驱体ZnAlLa-NO3-类水滑石 ZnAlLa-CO32-类水滑石 阴离子交换法 

分 类 号：O614[理学—无机化学]