淫羊藿药渣菌糠复合高吸水树脂的制备及性能研究

以淫羊藿药渣为原料，经食用菌平菇栽培后得到药渣菌糠；然后以药渣菌糠为原料，丙烯酸（AA）为单体，N，N'-亚甲基双丙烯酰胺（MBA）为交联剂，过硫酸铵（APS）为引发剂，亚硫酸钠（SBS）为助引发剂，采用水溶液聚合法接枝共聚制备药渣菌糠基复合高吸水树脂（SAP）。探讨了制备条件对吸水率的影响，得到最佳工艺条件为菌糠用量1.50 g、AA用量6.00 g、AA中和度70%、APS用量0.090 g、SBS用量0.030 g、MBA用量0.010 5 g，并在此最佳工艺条件下以未经处理的淫羊藿药渣制备高吸水树脂进行对照；结果表明：在最优工艺条件下制备的菌糠基复合高吸水树脂对过滤水和生理盐水的吸水率分别为1 234.96和71.11 g/g，远远高于原药渣接枝共聚得到的高吸水树脂。药渣菌糠基复合高吸水树脂还具有良好的保水性能，168 h后的保水率为22.59%。FT-IR分析结果表明丙烯酸成功接枝到菌糠上；通过扫描电镜观察发现其表面为粗糙多孔结构。

Preparation and Properties of Herba Epimedii Dregs Fungus Chaff Composite Super Absorbent Resin

Using the dregs of Herba Epimedii as raw materials, the cultivation of edible fungi Pleurotus ostreatus was conducted to obtain medicinal fungus chaff; and then using the residues of medicinal residues as raw materials, acrylic acid(AA) as monomer, N, N'-methylenebisacrylamide(MBA) as cross-linking agent, ammonium persulfate(APS) as initiator, sodium sulfite(SBS) as co-initiator, the aqueous solution polymerization method was used to prepare the dregs fungus chaff-based composite superabsorbent resin(SAP). The effect of preparation conditions on water absorption was discussed. The best process conditions were 1.50 g fungus chaff, 6.00 g AA, neutralization degree of AA 70%, 0.090 g APS, 0.030 g SBS, and 0.010 5 g MBA. And on this basis, the untreated medicinal dregs was used to prepare superabsorbent resin for grafting control. The results showed that the water absorption rate of the resin formed by the fungus chaff to the filtered water and physiological saline solution under the optimal process conditions were 1 234.96 and 71.11 g/g, and much higher than the superabsorbent resin obtained by graft copolymerization of the original dregs, and it had good water retention performance with the water retention rate of 168 h 22.59%. FT-IR was used to characterize its structure, proving that acrylic acid was successfully grafted onto mycelium; the surface was observed as a rough porous structure by scanning electron microscopy.