摘要
以改性羽毛蛋白和丙烯酸为主要原料,N,N′-亚甲基双丙烯酰胺为交联剂,过硫酸钾-亚硫酸氢钠为引发剂,采用溶液聚合法制备了羽毛蛋白接枝聚丙烯酸高吸水树脂P(MFP-g-AA),并对其吸水性能及其影响因素进行了考察。结果表明:P(MFP-g-AA)吸去离子水倍率达到559.4 g/g,在0.3 MPa的压力下保水率达85%,且比聚丙烯酸树脂(PAA)具有更好的耐盐性能、保水性能和更宽的pH适用范围。与PAA相比,P(MFP-g-AA)在0.9%NaCl溶液和人工尿液中的吸水倍率分别由56.9 g/g和51.8 g/g提高到68.7 g/g和61.3 g/g,并且在pH=7～11的介质中都有优良的吸水效果。
Modified feather protein grafted poly acrylic acid superabsorbents P（MFP-g-AA） were synthesized by polymerization of modified feather protein and acrylic acid in water when N,N′-methylenebisacrylamide（NMBA） was used as crosslinker and K2S2O8-NaHSO3 as initiator.The water absorbency performance and its influence factors of the P（MFP-g-AA） superabsorbents were investigated.The results showed that the absorbency of the P（MFP-g-AA） superabsorbents was 559.4 g/g in case of distilled water,and 85% water in the superabsorbents was held under the pressure of 0.3 MPa.P（MFP-g-AA） had higher salt tolerance,water-retaining ability and wider pH range for application than PAA.The absorbency values of P（MFP-g-AA） and PAA in case of physiological saline were 68.7 g/g and 56.9 g/g respectively,while the absorbency values of these two absorbents in case of artificial urine solution were 61.3 g/g and 51.8 g/g respectively.The preferable pH range for application of P（MFP-g-AA） was 7—11 while it was 6—9 for PAA.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2008年第7期1100-1105,共6页
Chemical Industry and Engineering Progress
基金
国家自然科学基金项目(20776164
20376087)
关键词
高吸水性树脂
羽毛蛋白
聚丙烯酸钠
溶液聚合
superabsorbents
feather protein
poly（sodium acrylate）
solution polymerization
作者简介
尹国强（1967-），男，副教授，博士，研究方向为精细化工、功能高分子材料。电话020—89013955;E—mail：yingq007@163．com。
