以粉碎的玉米秸秆(RCS)和羧甲基纤维素(CMC)为原料,制备了含水质量分数可达97.47％的玉米秸秆/羧甲基纤维素复配水凝胶(RCS/CMC).考察了交联剂、CMC和RCS用量对RCS/CMC凝胶模量的影响,凝胶在缓冲溶液中的降解行为和土壤中的失重行为,以及凝胶对土壤持水量、玉米种子萌发的影响.结果表明,与对照实验比较,RCS/CMC凝胶可以提高土壤持水率1.00％ ～ 1.61％,在37℃缓冲溶液中用纤维素酶处理4d后降解率约80％,土壤中25 d后失重约94％;用CMC/RCS凝胶处理玉米种子,虽然平均延长了种子萌发时间,但种子的萌发率较高.其中相对湿度18％、20％、23％、26％、28％和30％的萌发试验,由于水分胁迫对照实验种子不能萌发,而CMC/RCS凝胶处理的种子发芽率仍可达到97％.
参考文献
| [1] | 苏志珠;卢琦;吴波;靳鹤龄;董光荣.气候变化和人类活动对我国荒漠化的可能影响[J].中国沙漠,2006(3):329-335. |
| [2] | 朱建春;李荣华;杨香云;张增强;樊志民.近30年来中国农作物秸秆资源量的时空分布[J].西北农林科技大学学报：自然科学版,2012(04):139-145. |
| [3] | 宫贵贞;曹洪.水稻秸秆石油醚和乙醇萃取物的组成分析[J].应用化学,2014(6):726-731. |
| [4] | 陈宝玉;武鹏程;张玉珍;关楠.保水剂的研究开发现状及应用展望[J].河北农业大学学报,2003(z1):242-245. |
| [5] | 李希;刘玉荣;郑袁明;贺纪正.保水剂性能及其农用安全性评价研究进展[J].环境科学,2014(1):394-400. |
| [6] | 杨振;杨连利.水凝胶的研究进展及发展新动向[J].化工中间体,2007(1):5-10. |
| [7] | 尹大伟;周英;刘玉婷;苗东琳.水凝胶的最新研究进展[J].化工新型材料,2012(2):21-23,71. |
| [8] | 李健;刘雅南;刘宁;刘涛.羧甲基纤维素的制备研究及应用现状[J].食品工业科技,2014(8):379-382. |
| [9] | 聂华荣;柳明珠.羧甲基纤维素钠水凝胶的制备及其生物降解性研究[J].功能高分子学报,2003(4):553-556. |
| [10] | 聂华荣;柳明珠;陈振斌.羧甲基纤维素水凝胶生物降解动力学研究[J].物理化学学报,2004(4):386-390. |
| [11] | Yian Zheng;Shuibo Hua;Aiqin Wang.Adsorption behavior of Cu~(2+) from aqueous solutions onto starch-g-poly (acrylic acid)/sodium humate hydrogels[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20101/3(1/3):170-175. |
| [12] | S.E. Abdel-Aal;Y.H. Gad;A.M. Dessouki.Use of rice straw and radiation-modified maize starch/acrylonitrile in the treatment of wastewater[J].Journal of hazardous materials,20061/3(1/3):204-215. |
| [13] | Qing Chang;Xuekui Hao;Lili Duan.Synthesis Of Crosslinked Starch-graft-polyacrylamide-co-sodium Xanthate And Its Performances In Wastewater Treatment[J].Journal of hazardous materials,20082/3(2/3):548-553. |
| [14] | Demitri C;Del Sole R;Scalera F;Sannino A;Vasapollo G;Maffezzoli A;Ambrosio L;Nicolais L.Novel superabsorbent cellulose-based hydrogels crosslinked with citric acid[J].Journal of Applied Polymer Science,20084(4):2453-2460. |
| [15] | Francesca Lionetto;Alessandro Sannino;Alfonso Maffezzoli.Ultrasonic monitoring of the network formation in superabsorbent cellulose based hydrogels[J].Polymer: The International Journal for the Science and Technology of Polymers,20056(6):1796-1803. |
| [16] | Zhang JP;Wang L;Wang AQ.Preparation and properties of chitosan-g-poly(acrylic acid)/montmorillonite superabsorbent nanocomposite via in situ intercalative polymerization[J].Industrial & Engineering Chemistry Research,20078(8):2497-2502. |
| [17] | Yian Zheng;Junping Zhang;Aiqin Wang.Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly(acrylic acid)/attapulgite composite[J].Chemical engineering journal,20091/2(1/2):215-222. |
| [18] | Kelner A;Schacht EH.Tailor-made polymers for local drug delivery: Release of macromolecular model drugs from biodegradable hydrogels based on poly(ethylene oxide)[J].Journal of Controlled Release: Official Journal of the Controlled Release Society,20051/3(1/3):13-20. |
| [19] | 张小红;崔英德.反相悬浮聚合法合成可生物降解海藻酸钠高吸水性树脂[J].精细化工,2006(3):218-222. |
| [20] | Bimal Kumar Sarkar;Wei-Yuan Yang;Zhen Wu.Variations of Water Uptake, Lipid Consumption, and Dynamics during the Germination of Sesamum indicum Seed: A Nuclear Magnetic Resonance Spectroscopic Investigation[J].Journal of Agricultural and Food Chemistry,200918(18):8213-8219. |
| [21] | 徐文强;杨祁峰;牛俊义;熊春蓉;张永祥.温度与土壤水分对玉米种子萌发及幼苗生长特性的影响[J].玉米科学,2013(1):69-74. |
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