Preparation and characterization of microcapsules containing linseed oil and its use in self-healing coatings

被引：345

作者：

Suryanarayana, C. ^{[1
]}

Rao, K. Chowdoji ^{[1
]}

Kumar, Dhirendra ^{[1
]}

机构：

[1] SK Univ, Dept Polymer Sci & Technol, Anantapur, AP, India

来源：

PROGRESS IN ORGANIC COATINGS | 2008年 / 63卷 / 01期

关键词：

microencapsulation; self-healing coatings; crack healing; linseed oil;

D O I：

10.1016/j.porgcoat.2008.04.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Effectiveness of linseed oil filled microcapsules was investigated for healing of cracks generated in paint/coatings. Microcapsules were prepared by in situ polymerization of urea-formaldehyde resin to form shell over linseed oil droplets. Characteristics of these capsules were studied by FTIR, TGA/DSC, scanning electron microscope (SEM) and particle size analyzer. Mechanical stability was determined by stirring microcapsules in different solvents and resin solutions. Cracks in a paint film were successfully healed when linseed oil was released from microcapsules ruptured under simulated mechanical action. Linseed oil healed area was found to prevent corrosion of the substrate. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：72 / 78

页数：7

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