2results about How to "High spreading rate" patented technology

The present application relates to the technical field of water-based paint, in particular to a kind of polyaniline nano composite water-based epoxy heavy-duty anticorrosive paint and preparation method thereof, comprising: component A and component B, the component A includes water-based epoxy resin, film forming aid, dispersing agent, defoaming agent, polyaniline modified nano functional material, sheet filler, wetting and leveling agent, corrosion inhibitor, low shear thickening agent and medium shear thickening agent;The component B is water-based curing agent.The coating can solve the problem of environmental pollution emission in the coating process, and can also solve the hidden danger of safety, while having the characteristics of low density, high solid content, low paint consumption, high coating rate, fast surface drying time, high anti-sagging performance, etc., and the technical performance parameters can meet the protection requirements of C4, C5 coating standard.

This invention belongs to the field of brazing materials technology, and relates to a composite structure welding strip, its preparation method, and its application. A composite structure welding strip is prepared by ultrasonic welding or ultrasonic hot rolling of a first surface layer, a core layer, and a second surface layer. The first and second surface layers are metal alloy foil strips prepared by a strip spinning method. The first and second surface layers, by mass percentage, consist of the following components: Si 11-13%, Eu 0.05-2%, with the balance being Al. The core layer is porous foamed copper, accounting for 4-20% of the total mass of the composite structure welding strip. The thickness of the porous foamed copper is 30-60 μm. The thickness of the composite structure welding strip is 80-120 μm. This composite structure welding strip, as a thin-strip welding material, has a low melting point, good flexibility, can be prepared into rolls, exhibits strong interfacial bonding, a short welding stroke, good fluidity, and high spread rate, thus improving the performance of brazed joints.