摘要：通过包结络合法[1]制备乙酸薄荷酯与β-环糊精的包合物。研究了乙酸薄荷酯与β环糊精之比、搅拌反应的时间、温度和转速对乙酸薄荷酯与β-环糊精的包合物包结能的影响。用红外光谱仪( IR)对乙酸薄荷酯与β-环糊精的包合物的性能进行了表征。结果表明： m(乙酸薄荷酯)：m(β-环糊精) = 1:13，实验表明在转速为600r/min，温度为55℃的条件下反应1.5个小时所制备的乙酸薄荷酯与β-环糊精的包合物最为理想。通过XRD图谱分析表明乙酸薄荷酯被成功包埋进β-环糊精里，并用热重分析仪测得β-环糊精以及乙酸薄荷酯与β-环糊精的包合物的热重曲线，计算得到乙酸薄荷酯与β-环糊精的包合物的装载量为8.36％。35568
毕业论文关键词：乙酸薄荷酯；β-环糊精；纳米香精胶囊
Study of binding energy of Menthyl acetate Loaded β-Cyclodextrin Nano Capsule
Abstract: Menthyl acetate loaded β-cyclodextrin(β-CD) nanoparticles were prepared by the Inclusion Complexation Method. We studied the influence to the particle size and and flavor capsule size distribution of nanoparticles which was related to the ratio of water and alcohol, flavor and wall materials, the time of reaction, stirring speed and reaction temperature. The menthyl acetate loaded β-cyclodextrin nanoparticles fabric flavoured were characterized by Infrared Spectrometer ( IR ), Thermogravimetric Analyzer ( TGA )and X-ray diffraction(XRD).
Results showed that fragrance loading capacity was 8.36% when m(fragrance): m(Wall Materials) = 1:13, reaction time was 1.5h, rotational speed was 600r/min and reaction temperature was 55℃.The release rate of Menthyl acetate loaded by β-cyclodextrin nanoparticles was decreased under the high temperature.It is proved that Menthyl acetate loaded by β-cyclodextrin nanoparticles through X-ray diffraction.
Keywords: Menthyl acetate;β-cyclodextrin(β-CD); nanoparticle;
目录
1绪论 5
1.1本课题国内外研究现状概述 6
1.1.1β-环糊精的结构与性质 6
1.1.2 微胶囊的结构与性质 7
1.1.3 乙酸薄荷酯的性质 8
1.1.4 β-环糊精包覆香精胶囊的制备机理 9
1.1.5β-环糊精与香精包合物的主要制备方法 9
1.2本课题的研究目的和意义 10
2 实验部分 12
2.1 试剂及仪器 12
2.1.1 实验材料和试剂 12
实验所用材料和试剂见表2.1 12
2.2β-环糊精与乙酸薄荷酯包合物的制备和表征 12
2.2.1 实验工艺流程. 12
2.2.2β-环糊精与乙酸薄荷酯包合物的制备过程. 13
2.2.3单因素实验. 13
2.2.4 乙酸薄荷酯和β-环糊精包合物的表征. 14
2.2.4.1乙酸薄荷酯和β-环糊精包合物的红外表征 15
2.2.4.2 乙酸薄荷酯和β-环糊精包合物的装载量的测定 15
2.2.4.3 XRD图谱分析 16
3 实验结果与讨论 17
3.1乙酸薄荷酯与β-环糊精包合物制备的单因素试验 17
3.2红外光谱分析 18
3.3热重分析 20
3.4β-环糊精和乙酸薄荷酯与β环糊精包合物的XRD图谱分析 21
3.5β-环糊精和乙酸薄荷酯与β环糊精包合物的包结能的测定 23
4 结论 25
致谢 26
参考文献 27
β-环糊精与乙酸薄荷酯的包结能的研究 β-环糊精与乙酸薄荷酯的包结能的研究:http://www.751com.cn/huaxue/lunwen_33583.html