3results about How to "Flexible construction methods" patented technology

The invention discloses a water-based long-acting super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of surface functional materials and coatings. The hydrophobic coating comprises modified hydrophobic particles, an amphiphilic water-based binder, an auxiliary agent and a water-based dispersion medium, wherein the modified hydrophobic particles are inorganic or organic-inorganic composite micro-nano particles with hydrophobic low-surface-energy groups and hydrophilic or reactive functional groups on the surfaces at the same time, and the amphiphilic aqueous binder is an aqueous polymer material containing hydrophilic chain segments and hydrophobic chain segments at the same time. Stable dispersion of hydrophobic particles in a water phase is achieved, a low-surface-energy chemical structure and a graded micro-nano rough interface are synchronously constructed after film forming, the static water contact angle of the coating is not smaller than 150 degrees, the rolling angle is not larger than 10 degrees, and the coating has high adhesive force, excellent weather resistance and long-acting super-hydrophobic performance, is environmentally friendly and wide in applicable base material range and is suitable for large-scale production. The paint can be used for waterproof, antifouling, anti-icing, anti-corrosion and other self-cleaning surfaces.

The application discloses a kind of multifunctional composite modified water-based paint and preparation method thereof, belong to water-based paint technical field.The paint uses two-component system, A component is core film-forming phase, with organic silicon modified epoxy resin and acrylic modified polyurethane resin as composite base material, compound mesoporous metal oxide-aerogel composite filler, modified antirust pigment and functional additive;B component is cashew nut shell oil modified phenolic amine curing agent, by accurately controlling the proportion of two components and reaction condition, realize the synergistic promotion of coating comprehensive performance.The paint VOC content≤30g / L, 18-22 minutes surface dry at room temperature, neutral salt fog resistance can reach 720 hours or more, near-infrared reflectance≥0.85, while having excellent wear resistance, stain resistance and substrate adhesion, can be widely used in building exterior wall, galvanized member, industrial floor and other multi-scene protection and functional decoration, solve the technical pain point that existing water-based paint single function highlights but comprehensive performance is insufficient, with environmental protection and practicality.

The application discloses a three-stage stress construction method of a composite beam structure and the composite beam structure, and belongs to the technical field of fabricated building structures. The composite beam structure comprises a prefabricated beam, a plurality of anchoring members, a composite bottom plate and a composite cast-in-place layer, the prefabricated beam is installed on a supporting structure; the plurality of anchoring members are arranged at intervals along the length direction of the prefabricated beam; the composite bottom plate is laid on the prefabricated beam, and a through hole is arranged at the position corresponding to the anchoring member, the through hole is filled with an anchoring filler, and the anchoring member is anchored and connected with the composite bottom plate through the anchoring filler to form a two-stage collaborative composite beam; the composite cast-in-place layer is formed on the composite bottom plate, and the prefabricated beam, the composite bottom plate and the composite cast-in-place layer form a three-stage collaborative composite beam through the anchoring members. The anchoring filler in the through hole is used to realize the collaborative stress of the plate-beam in the construction stage, the temporary support can be reduced, the construction mode is flexible, and the composite beam formed by the steel beam, the prefabricated reinforced concrete beam and the composite plate is suitable.