Protective agent for curing agent component of epoxy dry-hanging adhesive and its preparation method and application

Abstract

The invention discloses a protective agent for curing agent components of epoxy dry-hanging glue and its preparation method and application; it comprises 100 parts of main solvent, 1-5 parts of auxiliary solvent, 5-10 parts by weight Parts of plastic particles, 10-15 parts of wax products and 1-3 parts of epoxy compounds; this method first adds the main solvent and auxiliary solvent to the reactor and stirs, then puts in plastic particles and wax products at one time, heats up and continues to stir , until the plastic particles and wax products are completely dissolved, then add epoxy compound, fully stir and disperse evenly, and the protective agent can be obtained after discharging. When in use, spray evenly on the surface of the epoxy dry-hanging adhesive curing agent component by spraying at a temperature of 50-60°C, and quickly condense into a film to form a protective layer, which acts on the epoxy dry-hanging adhesive curing agent component. To achieve the protective effect of isolation and sealing, to reduce the volatilization of small amine molecules in the curing agent component of dry-hanging glue, thereby reducing odor, reducing allergies, and maintaining the construction environment and the inherent quality of dry-hanging glue products.

Description

technical field [0001] The invention relates to the field of epoxy dry-hanging glue, in particular to a protective agent for the curing agent component of epoxy dry-hanging glue and its preparation method and application. Background technique [0002] As an important type of adhesive, epoxy adhesive is playing an increasingly important role in daily production and production activities. Especially the room temperature curing type, which uses amine curing agent, can react with epoxy resin at room temperature, it is very convenient to use, and the cured product has excellent performance, which is favored by people. Epoxy dry-hanging glue is a branch of epoxy adhesives. It is mainly used for pasting and dry-hanging of stone materials, and plays an important role in modern architecture and decoration. [0003] Epoxy dry-hanging adhesive is a relatively environmentally friendly adhesive variety. The epoxy resin part of component A basically does not emit any harmful substances, ...

AI Technical Summary

Problems solved by technology

But the only fly in the ointment is that the amine curing agent component of the epoxy dry-hanging adhesive is the curing agent component, which belongs to an organic amine compound, which is highly irritating to the human body. Allergies, although the volatility of small molecular amines has been reduced after chemical synthesis and modification, there will still be unavoidable volatilization of residual small molecular amines and other substances, which will have a greater impact on the environment

Especially in some low-end epoxy dry-hanging adhesive products, in order to meet the requirements of construction viscosity and economical efficiency, the modification ratio of most amine curing agents is relatively small, and the molecular weight of the product is not high, making the curing agent There are more small molecular amines remaining in the product

Then, the products made by using this kind of curing agent have obvious odor and allergies, which are not environmentally friendly.

[0004] At the same time, in epoxy dry-hanging glue, the curing agent component is easy to oxidize and change color in the air, and absorb carbon dioxide to form salt. These changes will affect the quality of epoxy glue.

[0005] At present, there are no related reports on such products or technologies used to solve the problems of odor and discoloration of the curing agent component curing agent of dry-hanging glue

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