3results about How to "No foaming" patented technology

The application discloses a kind of strong penetration cooking-resistant type water-based textile paper tube two-component epoxy dip coating and preparation method thereof, belong to water-based paint technical field.The coating is composed of A component and B component, A component uses the composite wetting penetrant that self-emulsifying submicron water-based epoxy dispersion and sulfobutane acid dioctyl sodium salt, acetylene glycol surfactant are composed of;B component selects fast-drying water-soluble modified polyamine curing agent, adds reactive curing accelerator.By the synergy of small particle size epoxy dispersion and composite wetting penetrant, the technical problem that traditional water-based paint is poor in paper tube fiber permeability, weak adhesion is solved;At the same time, through the synergistic effect of fast-drying curing agent and accelerator, the drying time is shortened.The coating has the characteristics of low VOC content, environmental protection safety, strong penetration to paper tube substrate, fast drying speed, excellent adhesion, and the dense paint film formed after curing has the performance of saturated water vapor cooking resistance.

This invention provides an underwater brushable, fast-curing epoxy anti-corrosion coating, comprising component A and component B. By weight, component A comprises 50-60 parts epoxy resin, 18-30 parts pigments and fillers, 0.2-1.0 parts defoamer, 0.3-0.8 parts dispersant, 0.1-0.5 parts leveling agent, 1-3 parts thixotropic agent, and 5-8 parts molecular sieve. Component B comprises 30-40 parts modified amine curing agent, 1-2 parts accelerator, and 1-3 parts silane coupling agent. This invention uses a quaternary ammonium salt-organosilicon dual-modified amine curing agent in component B to achieve a synergistic effect of electrostatic drainage and hydrophobic barrier; it incorporates molecular sieve activation powder as a physical dehydrating agent in component A; and it introduces nano-zinc oxide whiskers as an underwater toughening and reinforcing phase in component B. Components A and B work together to solve the problem of water phase interference during underwater construction.

The application discloses a composite powder reinforced radiation refrigeration coating and a preparation method thereof, and relates to the technical field of coating.The multistage surface modification functional powder, the water-based polyurethane resin and the polyisocyanate curing agent are used, the problems of unbalanced radiation refrigeration performance, slow drying speed, poor mechanical performance and environmental stability, and insufficient weather resistance of the existing coating are solved, the application scenarios of efficient cooling, weather resistance, corrosion resistance and long-term stable service are met, and the coating can be widely applied to the fields of building outer walls, metal components, cold chain equipment, outdoor facilities and the like.