Abstract: 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.

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。