摘要
以废弃沙棘枝条粉(HBP)为基体,丙烯酸(AA)为单体,过硫酸钾(K2S2O8)为引发剂,N,N'-亚甲基双丙烯酰胺(MBA)为交联剂,采用自由基溶液聚合法制备HBP/PAA(聚丙烯酸)超强吸水复合物。用红外光谱和场发射电子扫描电镜表征所制备的HBP/PAA。HBP/PAA超强吸水复合物在去离子水和0.9%Na Cl溶液的吸水倍率分别可达190.0 g/g和40.0 g/g。该复合物具有良好的保水性和反复吸放液性能。
HBP/PAA superabsorbent composites are synthesized by free-radical aqueous copolymerization, using waste Hippophae rhamnoides Linn. branch powder as matrix, acrylic acid as monomer, potassium persulfate （K2S2O8 ） as initiator and N, N -methylenebisacrylamide （MBA） as erosslinker. HBP/PAA superabsorbent composites are characterized by FT-IR and FE-SEM. The composites have the best absorbency of 190. 0 g/g in distilled water and 40. 0 g/g in 0. 9% NaCl solution. The absorbency of the composites in the studied salt solutions is in the order：NaCl 〉 CaCl2 〉 FeCl3. The composites have excellent water retention capacity and reusability.
出处
《现代化工》
CAS
CSCD
北大核心
2014年第12期84-87,共4页
Modern Chemical Industry
基金
中国博士后特别资助项目(201104615)
中央高校基本科研业务费专项资金(2013G2291015)
关键词
沙棘枝条粉
聚丙烯酸
超强吸水复合物
结构表征
吸水能力
Hippophae rhamnoides Linn. branch powder
poly （acrylic acid ）
superabsorbent composites
structural characterization
water retention capacity
