Aspartic polyurea resin composition with high durability, abrasion resistance, water resistance and corrosion resistance

Abstract

The invention discloses an aspartic polyurea resin composition with high durability, abrasion resistance, water resistance and corrosion resistance. The aspartic polyurea resin composition comprises amain agent and a curing agent, wherein the main agent and the curing agent are mixed at a volume ratio of 0.95 to 1.15; the main agent comprises the following components by weight: 50-90% of an amino-functional reactive diluent having a molecular weight of 276, 1-10% of tris-(2-chloroisopropyl) phosphate having the molecular weight of 327.4, 10-40% of polyetheramine having the molecular weight of2000 and 5-10% of pigments; the curing agent is a polyisocyanate prepolymer having an NCO content of 15-20%; the polyisocyanate prepolymer is formed by polymerizing the following components by weight: 45-85% of cyclohexane-1, 6-diisocyanate homopolymer having the molecular weight of 180, 15-35% of polypropylene oxide diol having the molecular weight of 1000, 1-10% of tris-(2-chloroisopropyl) phosphate having the molecular weight of 327.4, and 1-10% of propylene carbonate having the molecular weight of 102.1. The aspartic polyurea resin composition provided by the invention has excellent durability, wear resistance, water resistance and corrosion resistance, and is a novel environment-friendly and pollution-free green product.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-durability, wear-resistant, waterproof and anti-corrosion aspartame resin composition. Background technique [0002] Concrete or steel surfaces exposed to the air, under the action of ultraviolet rays, temperature, moisture, salt water, chemicals, and oxygen, can easily lead to erosion of concrete, corrosion of steel, and eventually damage. At present, concrete or steel surfaces are generally coated with epoxy series resin composition, urethane series resin composition, aliphatic compound polyurea, and aromatic compound polyurea resin composition. Existing epoxy series resin compositions and urethane series resin compositions have the disadvantages of poor physical properties such as tensile length, elongation, chemical resistance, weather resistance, and durability as coating raw materials. During the process, environmental hormones and volatile organic compounds are re...

AI Technical Summary

Problems solved by technology

Existing epoxy series resin compositions and urethane series resin compositions have the disadvantages of poor physical properties such as tensile length, elongation, chemical resistance, weather resistance, and durability as coating raw materials. During the process, environmental hormones and volatile organic compounds will be released, accompanied by a foul smell

When the resin composition of aliphatic compound polyurea and aromatic compound polyurea is used as a coating material and exposed to ultraviolet rays for a long time, the surface will be yellowed, the hardness will increase, and the elongation will decrease, resulting in cracks on the surface, thereby Get damaged and eventually fail to maintain semi-permanent durability

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