大豆蛋白塑料的增塑性研究+文献综述
关键词 大豆蛋白塑料 甘油 聚乙二醇400 三乙醇胺
毕业论文设计说明书外文摘要
Title Study on plasticity of soy protein plastics
Abstract
As a renewable biopolymer, soy protein has been considered as an alternative to solve serious environmental pollution, due to its poorer processability, soy protein plastics do not show satisfactory mechanical properties and water resistance, hence, efforts like plasticizers have been made to improve the processability. In this work, glycerol, glycerol/triethanolamine (TEA), glycerol/polyethylene glycol 400 (PEG400) plasticized soy proteins were prepared. Influences of different plasticizer types and contents on the structure and properties of the resulting plastics were investigated using water absorption test, FT-IR, TGA, and mechanical tests. Through the experiment, we concluded that as the glycerol content increased, soy protein plastics exhibited lower the tensile strength and higher elongation at break; Glycerol/TEA plasticized soy protein plastics possessed higher water absorption, similar tensile strength and lower elongation at break compared to glycerol plasticized soy protein plastics; Glycerol/PEG400 plasticized soy protein plastics have lower water absorption, higher tensile strength and lower elongation at break compared to glycerol plasticized soy protein plastics.
Keywords Soy protein plastics glycerin PEG400 TEA
目录
1绪论 1
1.1大豆蛋白塑料的研究状况 1
1.3 大豆蛋白塑料的应用 4
1.4本课题的研究意义与研究内容 4
2大豆蛋白塑料的制备 6
2.1实验仪器设备及材料 6
2.1.1 实验仪器 6
2.2.实验方法和内容 7
2.3表征方法 8
3实验结果与讨论 10
3.1增塑剂含量对吸水率、可溶物损失率的影响 10
3.2大豆蛋白塑料红外谱图谱 12
3.3热重分析 16
3.4 大豆蛋白塑料力学分析 18
4结论 20
致谢 21
参考文献 22
1绪论
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