前端聚合法制备羟基磷灰石/聚丙烯酰胺复合材料  

Synthesis of Hydroxyapatite/Polyacrylamide Composite by Frontal Polymerization

作　　者：田大民[1] 冯巧[1,2] 

机构地区：[1]河南城建学院化学与化学工程系,河南平顶山467044 [2]北京科技大学材料学院特陶研究室,北京100083

出　　处：《河南师范大学学报（自然科学版）》2010年第5期118-121,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(50772013)

摘　　要：采用前端聚合技术制备了羟基磷灰石/聚丙烯酰胺（HAP/PAM）复合材料,并将其用于废水中重金属铅离子的吸附处理.研究了羟基磷灰石含量对聚合前端移动速度、最高温度以及铅离子吸附能力的影响,并用扫描电镜（SEM）对产物的微观结构进行了观测.结果表明前端聚合法不仅工艺简单、反应快、能耗低,而且制备的HAP/PAM复合材料为多孔结构,无机粉体在其中分散均匀,具有较强的铅离子吸附能力,用于废水处理具有明显的优势.Hydroxyapatite（HAP）/polyacrylamide（PAM） composites are prepared by frontal polymerization（FP） and used to remove lead ions from waste water.The influences of HAP concentration on front velocity and front temperature as well as the Pb2＋ sorption capacity of PAM/HAP are investigated.Moreover,microstructures of the resultant products are observed by scanning electronic microscope（SEM）.It is found that the HAP/PAM composites synthesized by FP process exhibit higher Pb2＋ uptake capabilities,due to the homogeneous distribution of the HAP powders and the presence of the porous microstructure in FP samples.All the results indicate that the FP is a very promising method for preparation of HAP/PAM composite with the advantages of reducing preparation time and lowering energy consumption.

关 键 词：前端聚合 羟基磷灰石 复合材料 铅离子 废水处理 

分 类 号：TB332[一般工业技术—材料科学与工程] X522[环境科学与工程—环境工程]