纳米精油胶囊的制备及其在皮革中的应用研究
Preparation and application in leather field
of essential oil nanocapsule
Abstract：Nanocapsules loading thyme essential oil which has good antibacterial activity were prepared successfully with well-distributed size . Then the essential oil nanocapsules were used in collagen models, interaction with the ananlogs of leather collagen, such as gelatin, polyvinyl alcohol and polyamide was researched. Detailed characterization of the essential oil nanocapsules was investigated using dynamic laser light scattering (DLS) and scanning electron microscopy(SEM), and the combination of the essential oil nanocapsules with collagen models were studied. The results shows: the average size of nanocapsules loading thyme essential oil was 349.4nm, FDI was 0.029, and the embedding rate was 34.65%; nanocapsules reacted with collagen models by little physical absorption, others by esterification and covalent bond; when the pH is 4.0, the quality of nanocapsules is about 25%, the nanocapsule has better reaction with three collagen models, other factors are not the same.
KeyWords： essential oil nanocapsule; collagen models; interaction; mechanis
目录
1 绪论 1
1.1 纳米精油胶囊的制备方法 2
1.1.1 乳液聚合法 2
1.1.2 界面聚合法 2
1.1.3 喷雾干燥法 3
1.1.4 复凝聚法 4
1.2 纳米胶囊在皮革中的应用 4
1.2.1 纳米精油胶囊对皮革的加香 4
1.2.2 纳米精油胶囊对皮胶原的抑菌性 5
1.3 本课题的研究目的和意义 5
1.3.1 丙烯酸类树脂鞣剂与皮胶原的作用 6
1.3.2 聚氨酯鞣剂与皮胶原的作用 6
2 实验部分 8
2.1 实验材料 8
2.2 实验仪器 8
2.3 纳米精油胶囊的制备 8
2.4 纳米精油胶囊与皮胶原模拟物的作用 9
2.4.1 纳米精油胶囊与皮胶原模拟物作用的探索性试验 9
2.4.2 纳米精油胶囊与聚乙烯醇（PVA）的作用 9
（1）温度的影响 9
（2）反应时间的影响 9
2.4.3 纳米精油胶囊与聚酰胺（PA）的相互作用 9
2.5 纳米精油胶囊与皮胶原模拟物明胶的作用 9
2.5.1 反应时间的影响 10
2.5.2 pH值的影响 10
2.5.3 纳米精油胶囊用量的影响 10
2.5.4 温度的影响 10
2.6 性能与表征 10
2.6.1 动态激光光散射（DLS）的测试 10
2.6.2 热重分析仪（TGA）的测试 11
2.6.3 红外光谱（IR）的测试 11
3 结果与讨论 12
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