Epoxy resin curing agent

Abstract

The invention discloses an epoxy resin curing agent which consists of the following components in parts by weight: 20-30 parts of an acid anhydride mixture, 15-18 parts of aluminum oxide, 12-14 parts of isoprene, 6-9 parts of n-butyl alcohol phenyl glycidyl ether, 5-7 parts of an asbestos fiber, 8-9 parts of polypropylene glycol diglycidyl ether and 1 part of phenyl glycidyl ether. The epoxy resin curing agent disclosed by the invention is rapid in curing reaction velocity, and the complete curing time of an epoxy resin can be shortened to 6 hours.

Description

technical field [0001] The invention relates to an epoxy resin curing agent. Background technique [0002] Epoxy resin is an amorphous viscous liquid, which becomes plastic when heated, has no obvious melting point, becomes soft when heated, gradually melts and becomes sticky, insoluble in water, and will not harden itself, so it has almost no independent use value. Epoxy resin curing agent is an additive that chemically reacts with epoxy resin to form a network-like three-dimensional polymer, envelops the composite material in the network, and makes the linear resin into a tough body-shaped solid. When a certain amount of curing agent is added to the epoxy resin, it will gradually cure. Due to the good mechanical strength and insulation properties of epoxy resin after curing, epoxy resin is widely used as an adhesive in the manufacture of electronic products. For example, epoxy resin is needed to glue and cure some electrical components on circuit boards. Together. Howev...

AI Technical Summary

Problems solved by technology

However, due to the long curing time of epoxy resin at room temperature (28°C), it usually takes 8-12 hours to fully cure, which seriously affects work efficiency.