赵郁聪,靳刘萍,陈满儒,倪妍,李鸣,丁勇.单糖对玉米淀粉基复合膜性能的影响[J].包装工程,2020,41(3):150-155.
ZHAO Yu-cong,JIN Liu-ping,CHEN Man-ru,NI Yan,LI Ming,DING Yong.Effect of Monosaccharide Plasticizer on Mechanical Properties of Corn Starch-based Composite Film[J].Packaging Engineering,2020,41(3):150-155. |
| 单糖对玉米淀粉基复合膜性能的影响 |
| Effect of Monosaccharide Plasticizer on Mechanical Properties of Corn Starch-based Composite Film |
| 投稿时间：2019-10-15 修订日期：2020-02-10 |
| DOI：10.19554/j.cnki.1001-3563.2020.03.023 |
| 中文关键词: D-果糖 葡萄糖 增塑剂 复合膜 力学性能 |
| 英文关键词: D-fructose glucose plasticizer composite films mechanical property |
| 基金项目:陕西省咸阳市科技计划（2017k02-24） |
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| 中文摘要: |
| 目的 研究D-果糖和葡萄糖作为增塑剂对玉米淀粉-壳聚糖复合膜性能的影响。方法 糊化后的玉米淀粉溶液与壳聚糖溶液混合，分别添加5%，20%，35%，50%，65%（质量分数）的D-果糖及葡萄糖，均质后流延成膜；测定膜的力学性能，并通过扫描电镜、接触角、傅里叶红外扫描和X-衍射对复合膜相关特性进行表征。结果 成膜物质之间相容性好，增塑剂用量由5%增加至65%，膜的厚度增加，经D-果糖和葡萄糖增塑的复合膜抗拉强度分别由73.99，70.88 MPa减至18.08，40.53 MPa。经D-果糖增塑的复合膜断裂伸长率呈递增趋势，在添加量为65%时达到19.03%，经葡萄糖增塑的复合膜呈现递减趋势。结论 同一含量下，2种复合膜的厚度相近，抗拉强度相差不大，但经D-果糖增塑的复合膜断裂伸长率高，亲水性较好，更适合作为增塑剂应用在复合膜的制备中。 |
| 英文摘要: |
| The paper aims to investigate the effects of D-fructose and glucose as plasticizers upon properties of corn starch-chitosan composite films. The gelatinized corn starch solution was blended with the chitosan solution, 5%, 20%, 35%, 50% and 65% (mass fraction) of D-fructose of glucose were added, respectively; and then they were homogenized and cast into a film. The mechanical properties of the film were measured, and morphology properties, contact angle, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were used for characterization. The film-forming materials had good compatibility, the concentration of plasticizer was increased from 5% to 65% while the thickness of the film was increased, but the tensile strength of D-fructose and glucose plasticized films was decreased from 73.99, 70.88 MPa to 18.08, 40.53 MPa, respectively. The elongation at break of D-fructose plasticized film revealed an increasing trend, up to 19.03% at addition of 65%; while the glucose plasticized film displayed a decreasing trend. The thickness and tensile strength of the two plasticized films are similar at the same concentration, but the D-fructose plasticized film has high elongation at break and good hydrophilicity. It is more suitable to be used as a plasticizer in the preparation of composite films. |
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