Solvent-free UV (ultraviolet) adhesive and preparation method of automobile shipment and paint surface protective film using same

Abstract

The invention discloses a solvent-free UV (ultraviolet) adhesive, which comprises the following components in percentage by mass: 45-60% of acrylate oligomer; 25-35% of a diluent monomer A; 3-10% of adiluent monomer B; 0.2-0.8% of a light stabilizer; 4-10% of a photoinitiator; 0.5-2% of a surface auxiliary agent A; 1-2% of a surface auxiliary agent B; and 0.5-2% of a surface auxiliary agent C. According to the solvent-free UV (ultraviolet) adhesive provided by the invention, coating a base material is not needed; the solvent-free UV adhesive is uniformly sprayed on the surface of the automobile in a direct spraying manner; after being irradiated by a low-strength UV lamp, the adhesive is crosslinked to form a film, a uniform and compact transparent protective film is formed on the surfaceof automobile paint, the adhesive is not afraid of the curved surface and dead angles of an automobile body, and a uniform and compact coating can be perfectly formed on the surface of the automobilebody by 360 degrees without dead angles, so that common automobile shipment protective films and paint surface protective films on the market are replaced.

Description

Technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a solvent-free UV adhesive and a method for preparing an automobile shipping and paint protective film using the adhesive. Background technique [0002] With the improvement of living standards, more and more cars are entering ordinary households, and the number of cars in the market is getting higher and higher. After the automobile is assembled by the production enterprise, it enters the transportation channel and is sent to all parts of the country. During transportation, the car body is hit by sunlight, dust, stones, and sand, and the paint on the surface of the car will be damaged, causing unnecessary trouble in the sales link. This requires a surface for the car during transportation. Protection to prevent damage to the surface of the car body. Because of this, the protective film for automobile shipments came into being, which effectively solves the problem of d...

AI Technical Summary

Problems solved by technology

[0004] In the domestic market, protective films for automobile shipments are mainly PE protective films, mainly multi-layer PE co-extruded self-adhesive protective films or coated with acrylic glue on PE film materials. Part of the residual glue caused by peeling off the film due to factors such as light, heat, and oxygen will be affected by heat, oxygen, and ultraviolet rays during automobile transportation, and the bonding strength of the adhesive layer to the automobile body will increase significantly

When the protective film needs to be peeled off from the body, the adhesive will remain on the surface of the body more or less, causing unnecessary pollution, which makes cleaning the surface of the body inconvenient

Of course, this kind of PE protective film cannot be used as a car paint protection film; as a mainstream car paint protection film in the market, the product material is a polyurethane film, which contains anti-UV polymers, anti-yellowing, and has super strong Excellent toughness, wear resistance, non-yellowing, anti-collision, after installation, it can isolate the car paint surface from the air, prevent acid rain, anti-oxidation, resist scratches, and protect the paint surface of the car for a long time. Wet film, and then slowly use a soft scraper to remove water vapor and air bubbles, which is more inconvenient to operate

Images