Flame-retardant PU resin with good washability and preparation method thereof

Abstract

The invention relates to the technical field of storage devices, and discloses flame-retardant PU resin with good washability. The adhesive is characterized by comprising 5-10 parts of isocyanate, 5-10 parts of polyhydroxy alcohol, 40-50 parts of epoxy resin, 1-5 parts of a phosphorus flame retardant, 7-14 parts of a bicyclic caged phosphate flame-retardant curing agent, 10-15 parts of nitrile rubber, 2-5 parts of carbon black N22, 2-5 parts of carbon black N550, 1-5 parts of a diluent, 1-5 parts of an acidic catalyst, 1-5 parts of a basic catalyst, 6-12 parts of a hydroxyl aromatic compound and 5-8 parts of a vinyl-containing toughening agent. The nitrile rubber is nitrile rubber 6280, the phosphorus flame retardant is added, the plasticizing function of the phosphorus flame retardant enables the flow processability of the PU resin to become good during forming, the forming effect and the flame retardant effect of the PU resin are improved, and the PU resin has the advantages that the flame retardant property of the PU resin is improved, so that the service life of the PU resin is prolonged, the service life of the PU resin is prolonged, the service life of the PU resin is prolonged, and the service life of the PU resin is prolonged. The PU resin can have certain flame retardance.

Description

technical field [0001] The invention relates to the technical field of storage devices, in particular to a flame retardant PU resin with good washing resistance and a preparation method. Background technique [0002] Polyurethane material is the abbreviation of polyurethane, the English name is polyurethane, which is a kind of polymer material. Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic". Because of its excellent performance, it is widely used in many fields of the national economy, involving light industry, chemical industry, electronics, textile, medical treatment, construction, Building materials, automobiles, national defense, aerospace, aviation, etc. Polyurethane (PU) refers to the abbreviation of high polymer polyurethane (Polyurethane) containing a large number of urethane groups (-NHCOO-) on the main chain. Polyurethane materials have the characteristics of high strength, wear resistance, solvent resistance, aging res...

AI Technical Summary

Problems solved by technology

Compared with bulk polyurethane resins, linear polyurethane resins are popular in the market due to their good fluidity and easy processing; however, the heat resistance of linear polyurethane resins is not as good as that of bulk polyurethane resins, which limits the application of linear polyurethane resins, and existing The PU resin molding effect is not good;