摘要：本文主要阐述了用于冷敷的四度功能微胶囊的制备方法，即以相变材料正十四烷为芯材，无机物碳酸钙为壁材，用原位聚合法在水相中聚合形成可以在一定条件下具有恒温四度的功能微胶囊。本文还研究了该微胶囊在不同条件下的制备效果以及其最终产品得率。在保持正十四烷芯材和碳酸钙比例1﹕1的条件下，加入体系浓度10﹪的芯材（质量浓度），加入芯材比例的10﹪SDS（十二烷基磺酸钠），最佳温度80℃，搅拌速率800r/min，结合得出的微胶囊成品最佳，包埋率75.6﹪。

关键字：正十四烷；相转变微胶囊；原位聚合法

Preparation of four degrees Celsius functional Microcapsules for cold application

Abstract: In this thesis, the preparation method of functional microcapsules with four degrees Celsius for cold application is described, which can be formed by in-situ polymerization in the aqueous phase with n-tetradecane as the core material and inorganic calcium carbonate as the shell material. Under certain conditions, the microcapsules have a constant temperature of four degrees. This thesis also studied the preparation effect of the microcapsule under different conditions and the final product yield. Under the condition that adding 10﹪(mass concentration) n-tetradecane as the core material to the system the ratio of n-tetradecane core material and calcium carbonate is maintained at 1:1, 10% SDS (sodium dodecyl sulfate) is added to the proportion of the core material , at the optimal temperature 80℃and the stirring rate 800 r/min , which can get the best microcapsules with the yield of 75.6%.

Key words N-tetradecane; phase change microcapsules; in-situ polymerization.

目  录

1.绪论 4

1.1相变材料的概述 4

1.1.1相变材料的简介 4

1.1.2 相变材料的分类 4

1.1.3 相变材料的选择条件 4

1.1.4 相变材料的应用 5

1.2微胶囊技术的概述 5

1.2.1微胶囊技术简介 5

1.2.2 微胶囊的制备方法 6

1.2.3 微胶囊技术的应用 6

1.3微胶囊相变材料 7

1.3.1 微胶囊相变材料的介绍 7

1.3.2微胶囊相变材料的研究现状 7

1.4 正十四烷/CaCO3相变微胶囊的介绍 7

2.实验部分 9

2.1实验材料及实验设备 9

2.1.1实验材料 9

2.1.2仪器设备 9

2.2实验原理 10

2.3实验方案 10

2.4 探究性实验 11

2.4.1探究乳化剂的选择对微胶囊相变材料的影响 11

2.4.2探究体系温度对微胶囊相变材料的影响 11

2.4.3探究不同搅拌程度对微胶囊相变材料的影响 12

2.4.4探究不同体系浓度对微胶囊相变材料的影响 12

2.4.5探究乳化剂用量对微胶囊相变材料形成的影响 13

2.4.6探究芯壁比对微胶囊相变材料的影响