Freezing weather polyetherimide resin waterproof coating and preparation method thereof

Abstract

The invention relates to a freezing weather polyetherimide resin waterproof coating and a preparation method thereof. The freezing weather polyetherimide resin waterproof coating consists of the following raw materials in parts by mass: 80-90 parts of polyetherimide resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate, 4-7 parts of aluminum sulfate, 15-20 parts of ethylene glycol and 5-8 parts of water-soluble amide. The preparation method comprises the following steps: firstly mixing the polyetherimide resin with triethanolamine, ethylene glycol and water-soluble amide, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing to prepare primary pulp, mixing and blending sodium methylsilanolate and aluminum sulfate, then adding the primary pulp for mixing, and finally sequentially performing melting extrusion and crushing by virtue of an extruding machine to obtain the coating.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a polyetherimide resin waterproof coating for freezing weather and a preparation method thereof. Background technique [0002] Polyester powder coatings have good physical and mechanical properties, and can be widely used in the decoration and protection of metal surfaces. Equipment in freezing climates requires high coating waterproof, frost resistance, and brittleness. Most of the polyester powder coatings currently on the market It is only excellent in waterproof performance, but it cannot meet the special requirements of freezing climate. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a polyetherimide resin waterproof coating for freezing weather, which is easy to manufacture, low in cost, waterproof, frost-resistant, and brittle, and a preparation method thereof. [0004] The technical solution adopted ...

AI Technical Summary

Problems solved by technology

[0002] Polyester powder coatings have good physical and mechanical properties, and can be widely used for decoration and protection of metal surfaces. Equipment in freezing climates requires high coating waterproof, frost resistance, and brittleness. Most of the polyester powder coatings on the market today are It is only excellent in waterproof performance, but it cannot meet the special requirements of freezing climate