摘要本文采用聚合法中的细乳液聚合方法制备纳米乳胶粒子，并介绍了其机理和制备方法。主要采用异相凝聚的方法制备粒径分布在5-10μm之间的墨粉粒子,运用纳米粒度仪、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、示差扫描量热仪(DSC)等分析仪器表征了样品的粒度分布及大小、形貌、及热性能（玻璃化温度）。研究了异相凝聚过程中凝聚工艺的改变如：絮凝温度、升温速率、固结温度、固结时间、熟化温度、熟化时间、搅拌速率等因素对墨粉粒子形貌及粒径分布的影响。通过正交试验分析方法，找到最佳工艺条件。实验表明，固结温度55℃，搅拌速率700rpm，升温速率0。3℃/min，固结时间40min，熟化时间60min时凝聚粒子的粒径和形貌良好。实验还对墨粉粒径及形貌的可控性进行了研究。78107

毕业论文关键词  彩色墨粉  细乳液聚合  异种电荷凝聚  粒径分布  形貌

毕业设计说明书外文摘要

Title    Research of Polymerization of nano-latex particles and  its flocculation                                   

Abstract In this paper, the basic principles and methods for preparing fine emulsion are introduced and the method of miniemulsion is used to prepare nano latex particles。 Toner particles which size distribution is between 5 and 10μm were mainly prepared by the method of heterogeneous aggregates。 Laser diffraction, transmission electron microscopy (TEM), Scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and other analytical instruments are used to characterize the size distribution, morphology and thermal performance (glass transition temperature) of the sample。 Different conditions such as flocculation temperature, heating rate, the temperature of consolidation, consolidation time, curing temperature, curing time, stirring rate were studied。 Experiments show that the consolidation temperature of 55 ℃, stirring rate 700rpm, heating rate of 0。3 ℃ / min, consolidation time 40min, 60min maturing time when condensation particle size and morphology of particles is good。 Optimum conditions were found by orthogonal experiment So as to control the particle size and morphology of the toner。

Keywords  color toner  miniemulsion polymerization  condensation dissimilar charge  size distribution  morphology

目   次

1  绪论 1

1。1  课题背景 1

1。2  彩色墨粉的制备技术 1

1。3  细乳液聚合 1

1。3。1  细乳液聚合的概念 1

1。3。2  细乳液聚合的机理 2

1。3。3  细乳液聚合的实施办法 2

1。3。4  细乳液聚合的优点及应用前景 2

1。4  纳米乳胶粒子的异相凝聚 3

1。4。1  异相凝聚的机理 3

1。4。2  异相凝聚的影响因素 4

1。4。3  异相凝聚的应用 5

1。5  本论文研究的主要内容 5

2  实验部分 6

2。1  实验试剂及仪器 6

2。2  试验方案及过程 7