10results about "Cyclodextrin coatings" patented technology

The invention relates to the technical field of metal material protection, in particular to a surface rust-proof treatment method for a stator punching sheet, which comprises the following steps: performing plasma treatment by using argon-hydrogen mixed gas to form a nano rough structure, and immersing into simulated body fluid to form a biomimetic mineralization coating film; the preparation method comprises the following steps: carrying out supramolecular self-assembly on calixarene derivatives and beta-cyclodextrin, and then coating a gradient composite coating containing zinc-aluminum powder primer, a carbon nanotube transition layer and MXene finish paint; and finally, an organic silicon hole sealing agent containing azobenzene is sprayed, ultraviolet irradiation is carried out, a photoresponse self-cleaning layer is formed, and regulation and control processes such as microwaves and magnetic fields are adopted in all the steps. According to the method, a gradient composite protection layer and a light response self-cleaning system are constructed through cooperation of multiple technologies such as plasma, biomimetic mineralization and supramolecular self-assembly; the anti-rust performance of the stator punching sheet is remarkably improved, the salt spray test duration is longer than 2000 hours, the stator punching sheet has the characteristics of environmental protection and high efficiency, and the upgrading of a motor manufacturing technology is promoted.

This invention relates to the field of food packaging and functional food technology, and discloses an edible soybean residue-based cup with preservation and health-promoting functions, and its preparation method. The cup includes a soybean residue-based preform, which is formed by extrusion injection molding from soybean residue ultrafine powder, composite starch, and pH-sensitive health-promoting microcapsules. Its inner wall is coated with an active preservation layer containing glucose oxidase, catalase, and nisin, and its outer surface is coated with a physical barrier film formed by beeswax and shellac curing. This invention improves the water resistance and structural stability of the substrate by constructing a physical barrier film on the outer wall to seal pores; it actively reduces the oxygen partial pressure inside the cup and inhibits microbial growth through the synergistic effect of the multi-enzymatic reaction and antimicrobial peptides in the inner wall preservation layer, thus extending the shelf life of the food; and it combines microcapsule technology to protect the active core material in gastric juice and target its release in the intestine, improving the bioavailability of the health-promoting components.

Embodiments of the present disclosure pertain to a composition that includes a rotaxane. The rotaxane includes a plurality of macrocyclic rings and a polymer with a molecular weight below 10,000 Da that is covalently appended to one or more sterically hindered molecules. The cavities of the macrocyclic rings are threaded onto the polymer. The plurality of threaded macrocyclic rings include a plurality of different segments that each include a plurality of threaded macrocyclic rings. Each of the plurality of different segments is in the form of a crystalline network. Further embodiments of the present disclosure pertain to methods of forming the rotaxanes by covalently appending one or more sterically hindered molecules onto a polymer and threading a plurality of macrocyclic rings onto the polymer. Additional embodiments of the present disclosure pertain to methods of manufacturing a three-dimensional structure by applying a composition of the present disclosure onto a surface.

Solutions containing cyclodextrins for imparting odor control to materials used in absorbent products and associated products and methods. The solutions containing cyclodextrins for imparting odor control to materials used in absorbent products contain an optional polar organic solvent, water, cyclodextrin, and one or more odor-controlling compounds. The solutions can be used to uniformly apply a homogeneous solution of a cyclodextrin complex onto a solid surface whereby the cyclodextrin complex precipitates in situ on the solid surface. The cyclodextrin complex precipitates deposited from these solutions rapidly release odor-masking scents when hydrated with urine and can be deposited on substrates more effectively than cyclodextrin complexes in solid form.

To provide a primer for concrete that can give a coating layer having excellent curability, wet surface adhesion and adhesion to asphalt.SOLUTION: A primer for concrete contains a resin (A) having a polymerizable unsaturated group at each end, a methacryl monomer (B), a cyclodextrin derivative (C), and a tackifier (D). The content of the tackifier (D) is 1-50 mass%.SELECTED DRAWING: None

The application belongs to the technical field of paint preparation, and particularly relates to a paint composition for bridge concrete and a preparation method thereof. The paint composition for bridge concrete comprises acrylic emulsion, modified diatomite, cationic beta-cyclodextrin, nano-silicon dioxide, dispersing agent, defoaming agent, leveling agent and water. The preparation process of the modified diatomite is as follows: the diatomite is pretreated; the pretreated diatomite is added into a solution of vinyl triethoxysilane, and the pretreated diatomite is obtained after reaction; the pretreated diatomite is added into a solution of tripropyleneglycol dipropyl acrylate, 2-hydroxy-4-methacryloyloxybenzophenone and initiator, and the modified diatomite is obtained after heating reaction. The application significantly improves the ultraviolet aging resistance, water resistance and corrosion resistance of the paint by introducing the modified diatomite and cationic cyclodextrin.

The invention discloses a star-shaped triblock copolymer double-layer intelligent antifouling coating for marine equipment antifouling and application of the star-shaped triblock copolymer double-layer intelligent antifouling coating. The coating adopts a double-layer synergistic and functional partition design, wherein the lower layer is a PCL-CO-GA triblock copolymer with a star-shaped network structure, and provides mechanical support and a long-acting antifouling background; the upper layer is a cyclodextrin modified photocatalytic metal oxide porous functional layer, organic pollutants on the surface are actively removed by utilizing the photocatalytic self-cleaning effect of the cyclodextrin modified photocatalytic metal oxide porous functional layer, and a microbial adhesion foundation is destroyed. According to the design, multiple functions such as bacterium resistance, algae resistance, self-cleaning, oxidation resistance and wear resistance are integrated, laboratory tests show that the inhibition rate of the coating on common marine bacteria and algae reaches up to 99.9%, and the durability of the coating is remarkably superior to that of a traditional technology. Compared with a traditional heavy metal anti-fouling technology, the anti-fouling agent has the outstanding advantages of being environmentally friendly, advanced in anti-fouling mechanism, not prone to inducing drug resistance, long in acting time and the like, and has wide application prospects in the green anti-fouling field of equipment such as ships and ocean platforms.

This invention relates to the technical field of pipeline anti-corrosion materials, and in particular to a method for preparing and applying a two-component in-situ self-generating filler-type coating, comprising the following steps: S1, dissolving a certain mass of zinc metal salt in a solvent to prepare component A; S2, dissolving a certain mass of cyclodextrin-like substances and various organic molecules with corrosion inhibition or antibacterial functions in a solvent, and adding polymer materials as film-forming aids to prepare component B; S3, mixing components A and B in a certain proportion, coating the inside of pipes with large length-to-diameter ratios using a filling and coating method, and curing at 25-150℃ to obtain an in-situ self-generating nanofiller-type anti-corrosion and antibacterial dual-function coating; components A and B are nearly homogeneous solution phases, and the coating viscosity is low when initially mixed, which is convenient for filling and coating pipes with large length-to-diameter ratios, and the nanofiller can achieve in-situ self-generation, ensuring excellent adhesion and corrosion resistance of the coating, while improving the antibacterial performance of the pipeline.

The application provides an electronic paper electrophoretic fluid packaging composition with high dielectric property and a packaging method thereof. The electronic paper electrophoretic fluid packaging composition is a photocuring composition composed of a photocuring polyurethane resin, a cyclodextrin, a photocuring agent and an active diluent. After the photocuring composition is uniformly mixed, a thin film is formed on a glass plate by spin coating. The surface of a microcavity containing electronic ink is covered with the thin film on one side of the glass plate, and the film is cured by irradiation with ultraviolet light. After the glass plate is removed, a packaged microcup display window is obtained. The thin film formed after the photocuring composition is cured is transparent, has high dielectric constant, strong polarity, high hydrophilicity and excellent mechanical flexibility. The packaged microcup display window not only has stable performance, but also has high dielectric property. The preparation method is simple, pollution-free, low in cost, easy to operate, non-toxic and harmless, friendly to the environment, and extremely suitable for large-area popularization and application.

The application relates to the field of metal corrosion prevention technology, and discloses a zinc-aluminum coating preparation method, which comprises the following steps: S1, taking a first container, adding 5-10 parts of sulfonated beta-cyclodextrin water-based adhesive, 5-10 parts of n-propanol and 15-30 parts of deionized water into the first container in proportion; S2, pouring the mixture in the first container into a stirring equipment to uniformly stir and uniformly disperse to prepare an A-component mixture; S3, taking a second container, adding 15-25 parts of zinc-aluminum powder, 7-10 parts of an organic solvent, 10-25 parts of a dispersing agent and 23-35 parts of deionized water into the second container in proportion. The zinc-aluminum coating is not only beneficial to reducing the release of coating volatile matters and reducing the influence on the environment, but also makes the coating layer more environmentally friendly; in addition, the sintering temperature of the coating is relatively low, energy can be effectively saved, the energy utilization rate is relatively high in the production process, and the application conforms to the concept of sustainable development.