Coating composition for repairing rubber floor cloth and its application

Abstract

The application provides a coating composition for repairing a rubber floor cloth and its application. The coating comprises one-component polyurethane basecoat and dual-component polyurethane lacquer; the one-component polyurethane basecoat is prepared from, by weight percent, 20-40% of self-crosslinking polyurethane resin, 10-20% of hydroxy acrylic resin, 10-20% of titanium dioxide, 5-10% of functional filler, 10-15% of solvenet and 0-15% of assistant; the rest is tinting paste; the dual-component polyurethane lacquer comprises elastic polyurethane resin, hydroxyl acrylic dispersing body andisocyanate curing agent. The coating system has good integral flexibility, excellent outer surface wear resistance and anti-aging performance, good interlayer adhering force and good matching property with rubber floor cloth. The coating component can be applied to repair the rubber floor cloth and can achieve refreshed expression effect, and avoid the increased dismounting course of the overhaul, prolonged overhaul cycle, and waste by replacing the floor cloth.

Description

technical field [0001] The invention relates to the technical field of rubber floor cloths, in particular to a coating composition for repairing rubber floor cloths and an application thereof. Background technique [0002] With the development of railway passenger cars and the application of new materials, higher requirements have been put forward for the floor cloth of railway passenger cars in terms of internal performance, appearance, color pattern, comfort and durability. Among them, compared with the traditional polyvinyl chloride (PVC) plastic floor, the rubber floor cloth has the characteristics of good integrity, comfortable elasticity, and excellent wear resistance, which can meet the needs of the development of railway passenger cars. [0003] Rubber flooring is made by adding various compounding agents to rubber and processing it through mixing and other processes. According to the operating state of the railway passenger car, the rubber floor cloth inside the ca...

AI Technical Summary

Problems solved by technology

In the past, the method of intercepting and replacing the rubber floor cloth was generally used for repairing, but this would cause color difference between the old and new floor cloth, and the parts and wall panels in the car needed to be removed for replacement, which increased the maintenance workload and cycle, and even caused Larger maintenance content due to replacement, but also waste of floor cloth materials

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