Polyurea coating as well as preparation method and application thereof

A coating and polyurea technology, which is applied in the field of polyurea coating and its preparation, can solve the problem of non-application of aluminum alloy pedestrian bridge deck anti-skid in polyurea coating, and achieve fast curing, fast forming, and excellent flexibility. Effect

Inactive Publication Date: 2013-04-03
SHANDONG NOLLVETEC LIGHTWEIGHT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Using the technology of spraying polyurea elastomer, spray a 2mm thick polyurea coating on the surface of the aluminum alloy pedestrian bridge that needs anti-skid treatment, spread emery before the polyurea coating is not dry, and then use polyurethane topcoat to cover the anti-skid surface The pellets are completely covered and dry to achieve a non-slip effect.

Embodiment 2

[0019] Using the technology of spraying polyurea elastomer, spray a 2.5mm thick polyurea coating on the surface of the aluminum alloy pedestrian bridge that needs anti-skid treatment, spread rubber particles before the polyurea coating is not dry, and then use flexible epoxy The top coat completely covers the anti-skid particles, and the anti-skid effect can be achieved after drying.

Embodiment 3

[0021] Using the technology of spraying polyurea elastomer, on the surface of the aluminum alloy pedestrian bridge that needs anti-skid treatment, first spray 1mm thick polyurea elastomer, and then spray 1mm thick polyurea elastomer after the surface is dry, and spread anti-skid rubber at the same time granules, and then spray a 0.3mm thick polyurea coating to stick the rubber granules, and the anti-skid effect can be achieved after drying.

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D7/12E01C11/24
Inventor 张培良苏振佳王刚高安江宗岩王敬臣范圣文高伟郭雪艳郭学斌李卫刘家斌
Owner SHANDONG NOLLVETEC LIGHTWEIGHT EQUIP CO LTD
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