Synthesis of MF microcapsule encapsulated DCPD for self-healing materials

胡剑峰

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Synthesis of MF microcapsule encapsulated DCPD for self-healing materials

更新时间：2025-12-10

- Synthesis of MF microcapsule encapsulated DCPD for self-healing materials
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  华南理工大学化学与化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2010，
  
  Published：05 November 2010
- 稿件说明：
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胡剑峰. Synthesis of MF microcapsule encapsulated DCPD for self-healing materials[J]. CIESC Journal, 2010, (11).
DOI：

胡剑峰. Synthesis of MF microcapsule encapsulated DCPD for self-healing materials[J]. CIESC Journal, 2010, (11). DOI：

摘要

自修复材料是目前材料领域的研究热点。它是由包封有活性物质的微胶囊、能使活性物质发生快速交联固化的催化剂和树脂组成。自修复用微胶囊的粒径与壁厚对微胶囊的力学性能有决定性影响，而微胶囊力学性能对自修复材料的应用起着非常重要的作用。本研究采用三聚氰胺-甲醛树脂（MF）为壳材料，双环戊二烯（DCPD）为芯材料，通过原位聚合法制备自修复材料用微胶囊。并使用马尔文粒径分析仪以及透射电镜等仪器研究酸值、反应时间以及乳化搅拌速率等条件对微胶囊粒径和壁厚的影响规律。研究结果表明，pH较低，粒径分布较差，pH对壁厚影响不大；反应时间越长，微胶囊壁厚越厚，反应时间对粒径没有明显影响；乳化搅拌速率越大，粒径分布越好，乳化搅拌速率对微胶囊壁厚没有明显影响。

Abstract

Self-healing material has been the hot-point of research recently. It is composed of microcapsule with active agent

catalyst for active agent’s fast cross-linking and matrix resin. The application of self-healing material is extremely affected by the mechanical properties of microcapsules

which are determined by the size distribution and shell thickness of self-healing microcapsule. Microcapsule for self-healing materials was formulated with melamine formaldehyde (MF) as shell material and dicyclopentadiene (DCPD) as core material by using in situ polymerization in this research. The relationships of size distribution and shell thickness of microcapsule versus pH value

reaction time and agitating rate were investigated with MasterSizer2000 (MS2000) and transmission electron microscopy (TEM).The results showed that size distribution was worse and shell thickness did not change much when pH value was decreased. Shell thickness increased and size distribution did not change significantly when reaction time was prolonged. Size distribution was better and shell thickness did not change significantly when agitating rate was increased.

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