EPU one-component solvent-free environment-friendly adhesive and preparation method thereof

Abstract

The invention relates to an EPU one-component solvent-free environment-friendly adhesive, the formula of which comprises the following ingredients (by weight): 5-20 parts of epoxy resin, 20-40 parts of polyether polyol, 5-15 parts of dehydrated castor oil, 5-40 parts of anhydrous chlorinated paraffin, 5-20 parts of liquid rosin resin, 10-30 parts of 2,2,4-trimethyl-1,3-pentanediol isobutyrate, 20-40 parts of polymetric MDI Type-5005, 10-30 parts of modified MDI Type-9259, 10-30 parts of modified MDI Type-2023, 0.5-1 part of a silane coupling agent, 1-10 parts of ultrafine talcum powder, 1-10 parts of nanoscale calcium oxide, 0.1-5 parts of a catalyst dimorpholinyl diethylether and 1-5 parts of silicone oil. The environment-friendly type adhesive is stable to store and environment-friendly and harmless. By properly adjusting ratio, products with different properties of quick-drying, slow-drying, bubble, bubble-free, softness and hardness, etc. can be produced to meet requirements of the market.

Description

technical field [0001] The invention relates to an adhesive, in particular to an EPU one-component solvent-free environment-friendly adhesive capable of increasing storage stability and a preparation method thereof. Background technique [0002] At present, some high-strength adhesives on the market, such as epoxy resins, polyurethanes, etc., can only be cured when they are cured with a catalyst or moisture. Once the catalyst is added to the main agent, it will have a certain impact on storage. Currently on the market Most of the products are two-component, which are compounded together during use. In order to increase the storage period, some single-component adhesives are added with a certain amount of solvents that do not participate in the reaction to improve the storage stability of the product. It may cause harm and pollution to the operator and the environment. All-purpose glue, styrofoam, paint, anti-rust paint, foaming agent, soft and hard sponge, plastic runway gl...

AI Technical Summary

Problems solved by technology

[0002] At present, some high-strength adhesives on the market, such as epoxy resins, polyurethanes, etc., can only be cured when they are cured with a catalyst or moisture. Once the catalyst is added to the main agent, it will have a certain impact on storage. Currently on the market Most of the products are two-component, which are compounded together during use. In order to increase the storage period, some single-component adhesives are added with a certain amount of solvents that do not participate in the reaction to improve the storage stability of the product. It will cause harm and pollution to the operator and the environment

All-purpose glue, styrofoam, paint, anti-rust paint, foaming agent, soft and hard sponge, plastic runway glue, composite materials, etc. for decoration on the market today are two-component, which brings trouble to use, while single Due to the short storage period of the components, it is difficult to be used as a commodity, and some solvents that do not participate in the reaction are added to increase the storage period