Epoxy adhesive drying rapidly at room temperature

Abstract

An epoxy adhesive drying rapidly at the room temperature is composed of raw materials of, by mass, 100 parts to 120 parts of 711 epoxy resins, 2 parts to 5 parts of silica, 70 parts to 80 parts of liquid polysulfide rubber, 50 parts to 60 parts of tetrahydrofuran polyether epoxy resins, 2 parts to 5 parts of KH-500 coupling agents, 5 parts to 10 parts of methylcellulose, 60 parts to 80 parts of quartz powder and 1 part to 2 parts of DMP-30 accelerants. According to the epoxy adhesive drying rapidly at the room temperature, the curing time is between 5 hours and 8 hours, the cured shear strength is in a range of 25 MPa to 27 MPa at the room temperature and in a range of 21.2 MPa to 22 MPa at 100 DEG C.

Description

technical field [0001] The invention belongs to the technical field of epoxy adhesives, in particular to an epoxy adhesive that cures rapidly at room temperature. Background technique [0002] The development of adhesives has entered a long historical process, and the use of adhesives by humans can be traced back to a long time ago. It has been discovered from archaeological excavations that as far back as 600 years ago, humans mixed water and clay as an adhesive to make pottery and bricks, and bond solids such as stones into living utensils. Our country is one of the earliest countries to discover and use heaven-human adhesive. With the improvement of production and living standards, adhesives with ordinary molecular structures are far from satisfying people's applications in production and life. At this time, polymer materials and nanomaterials have become an effective way to improve the properties of various materials. Polymer polymerization Polymers and nanopolymers ha...

AI Technical Summary

Problems solved by technology

In the modernization of industrial enterprises, the traditional equipment maintenance technology based on metal repair methods can no longer meet the maintenance needs of more high-tech equipment. For this reason, more new glues including polymer composite materials have been born. Adhesives to solve more problems and meet new application requirements

Quick-drying adhesive is a kind of product that can be cured quickly, which shortens the time for the product to be put into use, but the existing quick-drying adhesive sacrifices the shear strength performance under the requirement of rapid curing