Epoxy adhesive has excellent performance, wide application, simple process and few investments, and most of its varieties can be used in the field. Therefore, it has been paid attention to by the personnel in the industry, and its research has also been invested in a large number of people, with rapid development. There are many kinds of them, but they are not unified at present. Common classification methods are as follows.
(1) According to the functional classification, it can be divided into general varieties (including room temperature curing, medium temperature curing, high temperature curing and low temperature curing adhesives), functional adhesives, environmental protection adhesives and special adhesives.
(2) According to its professional use, it can be divided into epoxy resin hardener for machinery (such as agricultural machinery glue), epoxy resin hardener for building (such as bonding steel reinforcement glue), epoxy resin hardener for electronic (such as pouring glue), epoxy resin hardener for repair (such as concrete pouring glue), and general glue for delivery, marine glue, etc.
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