5results about How to "Antifouling" patented technology

The utility model discloses a foreign language vocabulary interactive teaching card, which comprises a plurality of groups of card main bodies, each card main body is provided with a placing mechanism, each placing mechanism comprises a placing assembly and an antifouling assembly, each placing assembly comprises a display board, the card main bodies are positioned on the front side of the display board, and the antifouling assemblies are positioned on the front side of the display board. A plurality of groups of magnets are fixedly arranged on the front surface of the display board, an iron plate is embedded in the card main body, and the iron plate and the magnets are connected through adsorption; through the designed placing mechanism, a plurality of card bodies can be placed on the display board at the same time in use, a foreign language teacher can hold the display board for teaching in the teaching process, students can see the plurality of card bodies at the same time, the transparent board can cover the card bodies on the display board, the antifouling effect is achieved, and the teaching effect is good. And normal watching is not influenced, the use effect is improved, and the interaction effect is further improved.

The invention discloses isocyanate group modified fluorocarbon resin with antifouling performance, an antifouling coating thereof, a preparation method and application of the antifouling coating, and the isocyanate group modified fluorocarbon resin is prepared by the following steps: under the protection of inert gas, mixing mercaptan with an acrylic monomer and a photoinitiator, carrying out sulfydryl-vinyl click reaction at normal temperature, and then adding an initiator, so as to obtain the isocyanate group modified fluorocarbon resin. The preparation method comprises the following steps: adding an acrylic monomer into anhydrous fluorocarbon resin to obtain a modified acrylic monomer, dropwise adding diisocyanate into the anhydrous fluorocarbon resin, dropwise adding the modified acrylic monomer, and adding a solvent and a catalyst to react to obtain the isocyanate-based modified fluorocarbon resin polymer. The isocyanate group modified fluorocarbon resin disclosed by the invention has the characteristics of low surface energy, strong adhesion capability (bacteria, seaweed and the like) for inhibiting marine fouling organisms, small friction coefficient, good mechanical flexibility, low ice accumulation adhesion and high cycle stability, and is particularly suitable for ship surface protection.

The utility model relates to the field of composite materials, in particular to a waterproof composite fabric. Comprising a fabric layer made of a polyester material and further comprises a bottom material layer made of the polyester material, the upper surface of the bottom material layer and the lower surface of the fabric layer are bonded with film layers through glue layers respectively, the fabric layer and the bottom material layer are both made of polyester fibers, and the weight percentage of the polyester fibers adopted by the fabric layer and the bottom material layer is 1: 0.15-0.35. Cilia made of polyester materials are distributed on the upper surface of the fabric layer. A product made of the waterproof composite fabric has the effects of being waterproof, antifouling, high in strength, long in service life and high in body feeling comfort degree of a user.

This invention belongs to the field of marine protective coating technology, specifically relating to a super-corrosion-resistant powder coating for marine facilities and its preparation method. Addressing the current problem of mutual constraints among antifouling, anti-corrosion, and hydrophobic properties in coatings, this invention constructs a double-layer coating by employing a sequential electrostatic spraying process for the bottom and top layers of powder, followed by a single co-curing process to form a composite coating. The bottom layer comprises carboxylated liquid polybutadiene-modified epoxy resin and phosphate-modified flake zinc-aluminum powder, imparting excellent adhesion, flexibility, and physical shielding properties to the coating. The top layer comprises silane-modified nano-silica and modified antifouling agents, providing superhydrophobic, self-cleaning, and active antifouling functions, thereby enabling applications in harsh marine environments.