脱脂骨粉接枝AA/AM高吸水性树脂的制备与性能
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摘要
以生物质资源脱脂骨粉及聚合单体丙烯酸(AA)、丙烯酰胺(AM)为原料,采用水溶液接枝共聚法制备高吸水性树脂,并利用正交试验对合成条件进行优化。用傅里叶变换红外光谱仪、扫描电镜、电子能谱等对最优条件下合成的产品进行表征分析。结果表明:脱脂骨粉均匀分散于高吸水树脂的高分子骨架上,并接枝共聚成复合的化学结构。最佳合成条件为,脱脂骨粉用量为单体总量的18.7%、单体组成AA:AM=1.5:1,引发剂用量2.0%、交联剂用量0.25%。此条件下合成的树脂吸收纯水、生理盐水的倍率分别为(840±20)g/g、(120±5)g/g,具有良好的吸水保水性能。同时,该树脂含有丰富的磷、钾、钙等营养元素,还具有养分供给功能,尤其作为土壤保水剂在农业、园林领域具有良好的应用前景。
Superabsorbent resin was prepared by graft copolymerization of biomass resource defatted bone powder, acrylic acid(AA) and acrylamide(AM) in aqueous solution. The synthesis conditions were optimized by orthogonal test. The products synthesized under the optimum conditions were characterized and analyzed by Fourier transform infrared spectroscopy, scanning electron microscopy and electron spectroscopy. The results show that the defatted bone powder is evenly dispersed on the macromolecule skeleton of superabsorbent resin and grafted to form a composite chemical structure. The optimum synthetic conditions are as follows: the amount of defatted bone powder is 18.7% of the total monomer, the composition of monomer AA:AM=1.5:1, the amount of initiator 2.0%, and the amount of crosslinking agent 0.25%. Under these conditions, the absorptive rate of pure water and normal saline by the resin synthesized is(840±20) g/g and(120±5) g/g, respectively. The resin has good water absorption and water retention properties. At the same time, the resin is rich in phosphorus, potassium, calcium and other nutrients. It also has nutrient supply function, especially as a soil waterretaining agent, it has good application prospects in agriculture and gardens.
Superabsorbent resin was prepared by graft copolymerization of biomass resource defatted bone powder, acrylic acid(AA) and acrylamide(AM) in aqueous solution. The synthesis conditions were optimized by orthogonal test. The products synthesized under the optimum conditions were characterized and analyzed by Fourier transform infrared spectroscopy, scanning electron microscopy and electron spectroscopy. The results show that the defatted bone powder is evenly dispersed on the macromolecule skeleton of superabsorbent resin and grafted to form a composite chemical structure. The optimum synthetic conditions are as follows: the amount of defatted bone powder is 18.7% of the total monomer, the composition of monomer AA:AM=1.5:1, the amount of initiator 2.0%, and the amount of crosslinking agent 0.25%. Under these conditions, the absorptive rate of pure water and normal saline by the resin synthesized is(840±20) g/g and(120±5) g/g, respectively. The resin has good water absorption and water retention properties. At the same time, the resin is rich in phosphorus, potassium, calcium and other nutrients. It also has nutrient supply function, especially as a soil waterretaining agent, it has good application prospects in agriculture and gardens.
引文
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[16]王琰,井大炜,付修勇,等.保水剂施用量对杨树苗土壤物理性状与微生物活性的影响[J].水土保持通报,2017,37(3):53-58.
[2]潘滋涵,刘涛,吴效楠,等.秸秆纤维素接枝AA/AM高吸水性树脂合成与性能研究[J].塑料科技,2018,46(1):46-50.
[3]甘颖,徐继红,陶俊,等.阿拉伯胶基高吸水树脂的合成与吸水性能[J].精细化工,2017,34(9):982-987.
[4]许茂思,梁宇祥,刘志平.肉骨粉应用现状及毛皮动物胴体加工肉骨粉前景[J].黑龙江畜牧兽医,2016(20):209-211.
[5]李少博,李洪军,贺稚非.纳米级兔骨粉球磨法制备工艺优化[J].农业工程学报,2017,33(14):300-306.
[6]赵婧,梁飞,苗艳青,等.耐盐型壳聚糖高吸水树脂的制备及其性能[J].化工新型材料,2017(1):160-162.
[7]周芳宇.根据专利申请信息展望我国高吸水树脂领域技术的发展[J].化工管理,2017(7):61-64.
[8]Jaiswal P,Kumar K J.Physicochemical properties and release characteristics of starches from seeds of Indian Shahi Litchi[J].International Journal of Biological Macromolecules,2015,79:256-261.
[9]郝琦玮,段晓宁,王趁义,等.海洋生物质材料/无机矿物材料改进高吸水树脂的研究进展[J].化工新型材料,2017(7):18-20.
[10]刘廷国,李斌,朱坤坤,等.均相条件下甲壳素基高吸水树脂的制备及性能研究[J].高分子学报,2013(7):915-921.
[11]Witono J R,Noordergraaf I W,Heeres H J,et al.Water absorption,retention and the swelling characteristics of cassava starch grafted with polyacrylic acid[J].Carbohydrate Polymers,2014,103:325-332.
[12]刘淑琼,王珍珍,高晨.抗菌型四元共聚吸水性树脂的制备与性能[J].现代塑料加工应用,2017(5):16-19.
[13]毛敏敏,谢娜纯,曹阳,等.基于正交试验方法的香蕉杆纤维高吸水树脂优化分析[J].化工新型材料,2016(1):241-243.
[14]宋安新,霍晓月,高雪,等.淀粉/AMPS/DMC高吸水树脂的合成及对重金属离子的吸附性能[J].化学通报,2017,80(1):94-98.
[15]李莉,楚立凯,黄伟虹,等.耐盐性高吸水树脂的辐照合成及其后处理工艺[J].核技术,2014,37(7):31-36.
[16]王琰,井大炜,付修勇,等.保水剂施用量对杨树苗土壤物理性状与微生物活性的影响[J].水土保持通报,2017,37(3):53-58.