木薯淀粉水凝胶的微波合成表征及性能测试
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摘要
以木薯淀粉为原料,丙烯酰胺为单体,N,N-亚甲基双丙烯酰胺为交联剂,过硫酸钾为引发剂,采用微波辐射技术辅助制备木薯淀粉基水凝胶。探究单体、交联剂、引发剂用量等因素对水凝胶溶胀性能的影响。当淀粉与丙烯酰胺用量比为1∶3,N,N-亚甲基双丙烯酰胺为0.02 g,过硫酸钾0.05 g时,微波400 W,60 s制得的木薯淀粉水凝胶达最高吸水倍率。通过傅里叶红外光谱仪(fourier transform infrared spectrometer,FTIR)、场发射扫描电子显微镜(field emission scanning electronic microscope,FESEM)等分析测试手段对其进行表征,结果表明已成功制备木薯淀粉基水凝胶。该水凝胶溶胀平衡比在35℃时达到最大,且在室温条件下保水性良好。该研究为淀粉水凝胶的制备应用提供了实验依据,提高了木薯淀粉的附加值。
Tapioca starch was used as raw material, acrylamide as a monomer, N,N-methylenebisacrylamide as a cross-linking agent, potassium persulfate as an initiator, tapioca starch-based hydrogels were prepared by microwave irradiation technology. The effects of monomer, crosslinker, and initiator dosage on swelling properties of hydrogels were investigated. The results showed that when the ratio of starch to acrylamide was 1∶3, 0.02 g N,N-methylenebisacrylamide and 0.05 g potassium persulfate were used, the water absorption ratios of tapioca starch hydrogels prepared by microwaving at 400 W for 60 s reached the highest. FT-IR, field emission scanning electron microscope(FESEM), and other analytical methods were used for characterization. The results showed that the tapioca starch-based hydrogels were successfully prepared. The swelling balance ratios of hydrogels reached maximum at 35 ℃. Moreover, hydrogels had good water holding capacities at room temperature. This study provides certain experimental bases for preparing and applying starch hydrogel, which increases the added values of tapioca starch.
Tapioca starch was used as raw material, acrylamide as a monomer, N,N-methylenebisacrylamide as a cross-linking agent, potassium persulfate as an initiator, tapioca starch-based hydrogels were prepared by microwave irradiation technology. The effects of monomer, crosslinker, and initiator dosage on swelling properties of hydrogels were investigated. The results showed that when the ratio of starch to acrylamide was 1∶3, 0.02 g N,N-methylenebisacrylamide and 0.05 g potassium persulfate were used, the water absorption ratios of tapioca starch hydrogels prepared by microwaving at 400 W for 60 s reached the highest. FT-IR, field emission scanning electron microscope(FESEM), and other analytical methods were used for characterization. The results showed that the tapioca starch-based hydrogels were successfully prepared. The swelling balance ratios of hydrogels reached maximum at 35 ℃. Moreover, hydrogels had good water holding capacities at room temperature. This study provides certain experimental bases for preparing and applying starch hydrogel, which increases the added values of tapioca starch.
引文
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[24] 谭德新,王艳丽,陈德磊,等.高吸水树脂PAMPS的超声制备与性能研究[J].化工新型材料,2013,41(12):46-49.
[25] 董庆珍,熊国宣.超声法合成氨基酸型螯合树脂及其对铀的吸附[J].化工新型材料,2011,39(10):65-73.
[2] 何领好,孙晓丽,宋锐,等.聚乙烯醇/壳聚糖凝胶的制备及性能研究[J].化工新型材料,2009,37(7):33-36.
[3] 黄怡,范晓东,张楠楠.聚乙烯醇固载β-环糊精线性高聚物的合成及其药物控制释放研究[J].高分子学报,2004(6):854-858.
[4] 赵志桩,王法,张晓阳,等.智能水凝胶研究进展[J].化学工程师,2014,28(1):33-36.
[5] 王薇,关国平,王璐.生物医用水凝胶研究进展[J].生物医学工程学进展,2015,36(4):221-225.
[6] 刘壮,谢锐,巨晓洁,等.环境刺激响应型高强度智能水凝胶研究进展[J].化工进展,2016,35(6):1 812-1 819.
[7] 王薇,关国平,王璐.生物医用水凝胶研究进展[J].生物医学工程学进展,2015,36(4):221-225.
[8] FAHANWI A N.Synthesis and characterization of superabsorbent chitosan-starch hydrogel and its application for removal of direct red 80 dye[J].Eastern Mediterranean University (EMU),2014,25(2):32-36.
[9] LIM W P,ASHRI A,MUNTAZ A B,et al.Preparation and characterization of starch/acrylamide-based hydrogel from Stemona curtissi tuber[J].Malaysian Journal of Analytical Sciences,2016,58(10):157-170.
[10] 刘继伟,谷长生,宋文东,等.木薯淀粉基质水凝胶的制备及溶胀性能研究[J].安徽农业科学,2010,38(14):7 696-7 697;7 700.
[11] 谢松岩,周芳名,刘懿霆,等.温敏型水凝胶的制备及溶胀特性[J].当代化工,2015,44(4):702-705.
[12] NAMAZI H,DADKHAH A.Convenient method for preparation of hydrophobically modified starch nanocrystals with using fatty acids[J].Carbohydrate Polymers,2010,79(3):731-737.
[13] 韦晓燕,谭军,欧阳玉霞,等.淀粉接枝丙烯酰胺吸附铜离子性能研究[J].工业水处理,2014,34(2):15-18.
[14] 刘子杰,梁兴唐,张海燕.壳聚糖接枝丙烯酸/丙烯酰胺水凝胶的微波快速合成及其响应性[J].化工新型材料,2015,43(5):202-205.
[15] 赵天勤,杜杰,张鹏,等.新型淀粉基pH值敏感水凝胶的微波法合成及性能表征[J].化工新型材料,2013,41(11):108-110;117.
[16] BAI C,ZHANG S F,HUANG L,et al.Starch-based hydrogel loading with carbendazim for controlled-release and water absorption.[J].Carbohydrate Polymers,2015,125(9):376-383.
[17] 金海琴,张玉红,董勤政,等.壳聚糖接枝丙烯酸/丙烯酰胺水凝胶的制备及性能[J].高分子材料科学与工程,2009,25(11):129-132.
[18] 蓝平,何日梅,封余贤,等.木薯淀粉磁性微球的结构表征及其对溶菌酶的吸附性能[J].化工进展,2016,35(1):189-196.
[19] VAKILI M R,RAHNESHIN N.Synthesis and characterization of novel stimuli-responsive hydrogels based on starch and L-aspartic acid[J].Carbohydrate Polymers,2013,98(2):1 624-1 630.
[20] DU J,ZHAO T Q,LIU Y,et al.Synthesis and characterization of a novel starch-based pH-sensitive hydrogel[J].Applied Mechanics & Materials,2013,30(6):2 602-2 605.
[21] ZHANG Y,GAO P Q,ZHAO L,et al.Preparation and swelling properties of a starch-g-poly(acrylic acid)/organo-mordenite hydrogel composite[J].Frontiers of Chemical Science and Engineering,2016,10(1):147-161.
[22] 成瑾瑾.温度敏感性水凝胶的制备及其在铜离子吸附中的应用[D].杭州:浙江大学,2017.
[23] PANDEY M,AMIN M C I M.Accelerated preparation of novel bacterial cellulose/acrylamide-based hydrogel by microwave irradiation[J].International Journal of Polymeric Materials & Polymeric Biomaterials,2013,62(7):402-405.
[24] 谭德新,王艳丽,陈德磊,等.高吸水树脂PAMPS的超声制备与性能研究[J].化工新型材料,2013,41(12):46-49.
[25] 董庆珍,熊国宣.超声法合成氨基酸型螯合树脂及其对铀的吸附[J].化工新型材料,2011,39(10):65-73.