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    • 4. 发明授权
    • Absorbent protein meal base hydrogels
    • 吸收蛋白粉基础水凝胶
    • US08148501B2
    • 2012-04-03
    • US12918929
    • 2009-02-23
    • Herman P. BeneckeBhima R. VijayendranKevin B. Spahr
    • Herman P. BeneckeBhima R. VijayendranKevin B. Spahr
    • C08H1/00
    • A61L15/60A61L15/32C08F220/06C08F220/56C08F222/1006
    • Absorbent hydrogels are formed by reacting a protein meal base, a radical initiator and a polymerizable monomer. Optionally, a cross-linking agent and/or a radical accelerant, such as tetramethylethylenediamine (TMEDA) or sodium bisulfite (NaHSO3), is also added to the mixture. Preferably, the radical initiator is ammonium persulfate (APS) or potassium persulfate (KPS), and the cross-linking agent is preferably trifunctional trimethylolpropane trimethacrylate (TMPTMA) or methylene bis acrylamide (MBA). The polymerizable monomer is preferably acrylic acid, or a combination of acrylic acid and acrylamide. The as-formed hydrogel is washed in order to extract non-reactant components from the gel and then dried. The resultant absorbent and superabsorbent hydrogels have high water uptake ratios, and can be utilized for a variety of applications.
    • 吸收性水凝胶是通过使蛋白质膳食碱,自由基引发剂和可聚合单体反应形成的。 任选地,还向混合物中加入交联剂和/或自由基促进剂,例如四甲基乙二胺(TMEDA)或亚硫酸氢钠(NaHSO 3)。 优选自由基引发剂为过硫酸铵(APS)或过硫酸钾(KPS),交联剂优选为三官能三羟甲基丙烷三甲基丙烯酸酯(TMPTMA)或亚甲基双丙烯酰胺(MBA)。 可聚合单体优选为丙烯酸,或丙烯酸和丙烯酰胺的组合。 洗涤形成的水凝胶以从凝胶中提取非反应性组分,然后干燥。 所得的吸收性和超吸收性水凝胶具有高吸水率,并可用于各种应用。