Black rust-proof ultraviolet (UV) curing paint for oil steel pipe

Abstract

The invention belongs to the technical field of corrosion resistant paint, and particularly relates to black rust-proof UV curing paint for an oil steel pipe. The UV curing paint comprises, by mass, 20%-40% of modified polyurethane acrylate (PUA), 10%-30% of modified acrylate, 20%-50% of monomer, 4%-10% of an adhesion promoter, 2%-8% of a photoinitiator, 0.5%-5% of a co-initiator, 0.5%-2% of black carbon powder, 0.5%-1% of a leveling agent, 0.5%-1% of a defoaming agent and 0.5%-1% of a dispersing agent. The UV curing paint not only guarantees an attractive coating on the surface of the oil steel pipe, but also guarantees that the drying speed and curing time of the paint are not affected; additionally, the producing process is simple, and a formed paint film has good covering power, adhesion, abrasion resistance, salt spray resistance and humidity resistance; and the UV curing paint can be applied to steel products, especially oil steel pipes, has a high coating efficiency, and is suitable for a plurality of coating modes such as spray coating and curtain coating.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, in particular to a black anti-rust UV paint for petroleum steel pipes. Background technique [0002] Petroleum steel pipes occupy an important position in the petroleum industry, not only in terms of huge output, but more importantly, the quality and performance of steel pipes are of great importance to the development of the petroleum industry. Petroleum steel pipes mainly include oil well pipes (drill pipes, drill collars, casings, oil pipes, etc.) and paint delivery pipes. In general, compared with the surface treatment of ordinary steel pipes, the surface treatment of petroleum steel pipes, especially the task of anti-corrosion, is more difficult. The main reasons are as follows: On the one hand, due to the huge annual output of petroleum steel pipes, some may face the need for long-term storage, and some It may need to go through a long-distance transportation process, and i...

AI Technical Summary

Problems solved by technology

In general, when UV paint is applied to the surface of steel for surface anti-corrosion function, due to the presence of an oxide film on the metal surface, the surface energy of the metal is reduced, the adhesion of UV paint is poor, and the coating is difficult.

Moreover, the traditional UV paint is transparent varnish, does not have covering performance, is not beautiful, and cannot meet the actual requirements of customers, while black UV paint has certain covering performance and is beautiful, and is opaque to visible light. Strong absorption, which relatively weakens the absorption of ultraviolet rays by other substances (photosensitive resins and photoinitiators) in the UV coating, so that it is difficult for the coating to undergo polymerization and crosslinking reactions, thereby affecting the curing of the coating. Therefore, the current existing technology Among them, there is no research on black UV paint for oil steel pipes