聚合物对纳米乳液表面修饰研究
毕业论文关键词: γ-聚谷氨酸、壳聚糖、纳米乳液、聚合物
The study of polymer modified the surface of nanoemulsion.
Abstract: Use polymer modified the surface of nanoemulsion, forming a layer of shell which is similar with a protective film, so that the nanoemulsion can achieve a more stable state. Choseγ-Polyglutamic acid and Chitosan as the composite wall material and the nanoemulsion as the core materials, then modified the surface of nanoemulsion by Polyelectrolyte self-assembly under the normal temperature and pressure,and the average particle size,polydispersity index were measured with Malvern Zetasize Nan-ZS to choose the optimal condition.Besides,observed its morphological structure by TEM. The optimal conditions were as follows: Chitosan 0.0067%, Choseγ-Polyglutamic 0.006%, AceticAcid 0.06%, nanoemulsion 33.3%., The nanoemulsion can get better stability in the optimal conditions. So we can use Choseγ-Polyglutamic acid and Chitosan modify the surface of nanoemulsion.
Keyword: Choseγ-Polyglutamic acid; Chitosan; nanoemulsion; polymer
目 录
1.前言 . 1
1.1 纳米乳液 . 1
1.2 纳米乳液的特性 ... 1
1.3 纳米乳液的制备 ... 1
1.3.1 高能乳化法 ... 1
1.3.2 低能乳化法 ... 1
1. 相转变温度法(PIT 法) .. 2
2. 反相乳化法(PIC 法) 2
3. 自乳化法 .. 2
1.4 包覆技术的研究背景 ... 2
1.5 微胶囊的定义 . 3
1.6 微胶囊的制备 . 3
1.6.1 化学法制备微胶囊 . 3
1. 界面聚合法 3
2. 原位聚合法 4
1.6.2 物理化学法 ... 4
1. 复合凝聚法 4
2. 复相乳液法 4
1.6.3 物理法 ... 4
1. 空气悬浮法 4
2. 喷射干燥 .. 4
3. 溶剂蒸发法 5
1.7 本实验的研究目的和意义 ... 5
2．实验材料与方法 .. 6
2.1 实验拟使用的原料试剂和实验设备 ... 6
2.1.1实验拟使用的原料试剂 . 6
2.1.2 实验拟采用的实验设备 . 6
2.2 实验方法 . 7
2.2.1 显微镜的观察方法 . 7
2.2.2 粒径分析方法 . 7
2.2.3 离心方法 . 7
2.3 样品制备方法 . 7
2.3.1 纳米乳液的制备 ... 7
2.3.2 明胶/阿拉伯胶为复合壁材微胶囊空壳的制备 .. 8
1. 未用固化剂处理 8