epoxy reactive diluent

Epoxy reactive diluents generally refer to low-molecular compounds with one or more epoxy groups, which can directly participate in the curing reaction of epoxy resins and become part of the cross-linked network structure of epoxy resin cured products. It has little effect on the properties and sometimes increases the toughness of the cured system. Crystalline epoxy resin

Introduction

(1) A class of compounds that can not only dissolve or disperse film-forming substances, but also participate in the film-forming reaction during the coating film-forming process to form non-volatile components and remain in the coating film. Mainly used in high solids and solvent free coating systems. Can be divided into: glycidol type, used for solvent-free epoxy paint; terminal two (or three, four) acrylate type, used for light curing coating; high hydroxyl value polyester, polyether type, used for high solid coating .

(2) The diluent that participates in the reaction at the same time in the process of diluting the adhesive. The molecule contains active groups, which can react with the curing agent of the adhesive without gas escape, and generally have no effect on the performance of the cured adhesive layer. When used, the amount of curing agent should be increased, and the increase should be calculated according to the active group of the diluent. Mostly used in epoxy resin adhesives. The main varieties are mono-epoxy propenyl glycidyl ether, phenyl glycidyl ether, di-epoxy ethylene glycol bisglycidyl ether, resorcinol bisglycidyl ether, etc.

epoxy reactive diluent