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Preparation of imidazole embedded polyurea microcapsule for latent curing agent
Author(s) -
Zhao Liyang,
Yang Xiaojun,
Ma Limin,
Li Qingyang
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49340
Subject(s) - polyurea , epoxy , adhesive , materials science , curing (chemistry) , interfacial polymerization , coating , composite material , polymerization , chemical engineering , polymer chemistry , polymer , monomer , layer (electronics) , engineering
The IZ‐PU microcapsule‐type curing agent was prepared by interfacial polymerization method. The shell‐core structure of the IZ‐PU microcapsules was demonstrated by IR and SEM. The core content and coating efficiency of the IZ‐PU microcapsules were analyzed by DSC test of the one‐component adhesive consisting of IZ‐PU microcapsules and epoxy resin. The results showed that the IZ‐PU microcapsules is a proper latent curing agent to epoxy resin, its latency at room temperature is longer than 30 days.