Polyurea coating as well as preparation method and application thereof

Abstract

The invention relates to a polyurea coating as well as a preparation method and application thereof. The polyurea coating is a polyurea elastomer; a polyurea coating spraying method adopts a polyurea elastomer spraying technology; in the polyurea coating spraying process, anti-skidding aggregate is added, which can be silicon carbide or rubber granules; and the polyurea coating is used as an anti-skidding material for the bridge surface of an aluminium alloy pedestrian bridge. Compared with the conventional paving materials, the polyurea coating has the characteristics of quick formation, insensitivity to dampness, wear resistance, skid resistance, as well as good adhesion, smooth surface, capability of spreading the anti-skidding aggregate and the like; and due to excellent toughness, the polyurea coating can completely resist heat expansion and cold contraction caused by change of ambient temperature in the day and at night and in four seasons, does not crack and shed off, and has a wide application prospect in the field of material protection.

Description

technical field [0001] The invention relates to a polyurea coating, a preparation method and application thereof, and belongs to the field of environmental protection and anti-skid. Background technique [0002] Spraying polyurea elastomer (SPUA) technology is developed and developed in the United States in recent decades to meet the needs of environmental protection, following low (no) pollution coating technologies such as high-solid coatings, water-based coatings, radiation-cured coatings, and powder coatings. A new solvent-free, pollution-free green construction technology. This process is a rapid-response spraying system. The raw material system does not contain solvents and has a fast curing speed. It can be easily sprayed on the facade and curved surface with a thickness of more than ten millimeters without sagging. SPUA technology has completely broken through the limitations of traditional environmental protection coating technology. When this technology enters Ch...

AI Technical Summary

Problems solved by technology

[0003] At present, polyurea coating and its spraying technology are only used in the fields of anti-corrosion and waterproofing, but for the deck of aluminum alloy pedestrian bridges, not only anti-corrosion, waterproofing but also anti-skid are required, polyurea coating and its spraying technology have not been applied to aluminum alloys Pedestrian bridge deck anti-skid field