Preparation of epoxy/MUF microcapsules and their mechanical properties in adhesives
AN Jinliang
LI Xinteng
SUN Sailing
Abstract：In this paper,epoxy/MUF microcapsules with epoxy resin as the core material and melamine modified urea-formaldehyde resin(MUF)as the shell material were prepared by in-situ polymerization.The synthesis process was optimized,and its morphology,structure,chemical composition and thermal stability,as well as the curing properties of the microcapsule-type epoxy resin adhesive mixed with self-made solvent matrix adhesive were analyzed.The results indicated that under the condition of pH 2.8～2.9,the prepared microcapsule particles were plump,with regular morphology,and showed no significant agglomeration or pre-cipitation.They exhibited good thermal stability,with an initial thermal decomposition temperature of approximately 220℃.Even under mechanical stirring at up to 2000 r/min,the structural integrity remained above 85%.When the microcapsule content was 20%,the bolt breaking torque reached a maximum value of 17.06 N·m.
Keywords：epoxy/MUF microcapsulesdurabilitythermal stabilitybreaking torque
Publication Date：2026-01-25
Online Publishing Date：2026-03-17(First online date of this platform, not the publication date of the document)
Pages：8( 108-115 )