淀粉-蛋白-PVA膜的快速吸水与膨胀研究
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摘要
对淀粉-蛋白-PVA膜(SCP膜)的制备及其性能进行了研究。首先,以玉米淀粉为原料,选择过氧化氢为氧化剂,在氧化淀粉与聚乙烯醇混合的基础上,甲醛作为交联剂与废弃革屑提取的胶原蛋白降解物制备快速吸水溶胀膜,并对其吸水性质进行了试验。通过正交实验在不同条件下选择最优实验方案,可知SCP膜的最优方案为:10 g CD,25 g聚乙烯醇(PVA),温度70℃,pH=9.0。以吸水倍数为指标,利用极差分析可知,各个因素对SCP膜的影响程度主次顺序为:蛋白降解物用量>PVA用量>温度>pH。其次,通过傅里叶红外光谱(FT-IR)分析、差式扫描量热(DSC)分析和热重(TGA)分析对SCP膜结构进行了分析。
The preparation and properties of starch-protein-PVA membrane(SCP membrane) were studied. Using corn starch as raw material and hydrogen peroxide as oxidant, on the basis of mixing oxidized starch and polyvinyl alcohol,formaldehyde was used as cross-linking agent and collagen degradation product extracted from waste leather scraps to prepare rapid water-absorbing swelling film. The water absorption properties were tested. According to the orthogonal experiment, the optimum scheme of the composite membrane is: 10 g collagen degradation product, 25 g polyvinyl alcohol(PVA), temperature 70 ℃, pH=9.0. Taking the water absorption as the index, the order of the influence degree of each factor on the composite membrane was as follows: CD dosage >PVA dosage >temperature >pH. Secondly, the structure of the composite membrane was characterized by Fourier Infrared Spectroscopy(FT-IR), Differential Scanning Calorimetry(DSC) and Thermogravimetric(TGA).
The preparation and properties of starch-protein-PVA membrane(SCP membrane) were studied. Using corn starch as raw material and hydrogen peroxide as oxidant, on the basis of mixing oxidized starch and polyvinyl alcohol,formaldehyde was used as cross-linking agent and collagen degradation product extracted from waste leather scraps to prepare rapid water-absorbing swelling film. The water absorption properties were tested. According to the orthogonal experiment, the optimum scheme of the composite membrane is: 10 g collagen degradation product, 25 g polyvinyl alcohol(PVA), temperature 70 ℃, pH=9.0. Taking the water absorption as the index, the order of the influence degree of each factor on the composite membrane was as follows: CD dosage >PVA dosage >temperature >pH. Secondly, the structure of the composite membrane was characterized by Fourier Infrared Spectroscopy(FT-IR), Differential Scanning Calorimetry(DSC) and Thermogravimetric(TGA).
引文
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[3]Reddy N,Yang Y.Citric acid cross-linking of starch films[J].Food Chemistry,2010,118(3):702-711.
[4]Sreedhar B,Chattopadhyay D K,Karunakar M S H,Sastry AR K.Thermal and surface characterization of plasticized starch polyvinyl alcohol blends crosslinked with epichlorohydrin[J].Journal of Applied Polymer Science,2006,101(1):25-34.
[5]Wang X,Gu Z,Qin H,et al.Crosslinking effect of dialdehyde starch(DAS)on decellularized porcine aortas for tissue engineering[J].International Journal of Biological Macromolecules,2015,79:813-821.
[6]Koo S H,Lee K Y,Lee H G.Effect of cross-linking on the physicochemical and physiological properties of corn starch[J].Food Hydrocolloids,2010,24(6-7):619-625.
[7]王春艳,钟耕,李大勇.双氧水氧化玉米淀粉的制备及其性质研究[J].粮食与饲料工业,2007,(8):26-27.
[8]Sukhija S,Singh S,Riar C S.Effect of oxidation,cross-linking and dual modification on physicochemical,crystallinity,morphological,pasting and thermal characteristics of elephant foot yam(Amorphophallus paeoniifolius)starch[J].Food Hydrocoll,2016,55:56-64.
[9]Martínez-Bustos F,Amaya-Llano S L,Carbajal-Arteaga JA,et al.Physicochemical properties of cassava,potato and jicama starches oxidised with organic acids[J].J Sci Food Agric,2007,87:1207-1214.
[10]Yossathorn T,Jutarat P.Effect of dual modification on properties of biodegradable crosslinked-oxidized starch and oxidized-crosslinked starch films[J].International Journal of Biological Macromolecules,2018:S0141-8130(18)32581-9.
[11]李玲玉.改性淀粉的制备方法研究[J].化工设计通讯,2018,v.44;No.192(06):150-151.
[12]陈沛海,王全杰,罗艳华,等.利用废弃铬革屑制备土壤有机肥的可行性探究[J].皮革与化工,2017(2):13-16.
[13]Wang S,Jia Z,Zhou X,et al.Preparation of a biodegradable poly(vinyl alcohol)-starch composite film and its application in pesticide controlled release[J].Journal of Applied Polymer Science,2017,134(28):1-8.
[14]周凯,刘勇.甲醛交联淀粉尿素缓释化肥的制备[J].湖北农业科学,2014,53(19):4675-4678.
[15]王帅,单志华.胶原降解物-三聚氰胺复合物及粉粒性能[J].高校化学工程学报,2017,31(4):996-1000.
[16]Sheng C,Zhou Y,Lu J,etal.Preparation and characterization of chitosan based hydrogels chemical cross-linked by oxidized cellulose nanowhiskers[J].Polymer Composites,2018:5-6.
[17]贾雪.玉米淀粉基薄膜材料的制备及性质研究[D].2018:19-20.
[18]肖雅婷,陈桂.聚乙烯醇接枝改性淀粉胶粘剂研究[J].怀化学院学报,2018,37(11):69-73.
[19]王长红,龙柱,刘崇崇,等.交联氨基淀粉的制备及其对纸页的增强作用研究[J].纤维素科学与技术,2015,23(3):29-35.