27results about "Cyclodextrin coatings" patented technology

In example implementations, a three-dimensional printing kit for printing a colorless three-dimensional object in a three-dimensional printing system is provided. The three-dimensional printing kit includes a build material and an aqueous ultraviolet (UV) fusing agent. The aqueous UV fusing agent includes water in greater than 50 weight percent of the aqueous UV fusing agent and a UV absorber cyclodextrin complex.

The invention belongs to the technical field of coatings, and particularly relates to a high-flash-point phenolic anticorrosive coating as well as a preparation method and application thereof. The high-flash-point phenolic anticorrosive paint is prepared from the following raw materials in parts by mass: 40 to 70 parts of xylene phenolic resin, 30 to 60 parts of hyperbranched polyester modified phenolic resin, 10 to 15 parts of silicone acrylic emulsion, 5 to 10 parts of modified glass fiber, 5 to 10 parts of pigment, 3 to 8 parts of solvent, 3 to 8 parts of light stabilizer-beta-cyclodextrin inclusion compound and 1 to 3 parts of drier. A coating layer obtained by the phenolic anticorrosive paint provided by the invention has good adhesive force, flexibility, long-term salt fog resistance, weather resistance and heat and humidity resistance.

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.

The gouache composition is characterized by comprising the following components: a binder, a dispersing agent, a thickening agent, a coloring agent, an inorganic filler, a wetting agent, a humectant, a defoaming agent and the balance of water, the binder is a non-reducing sugar, a sugar alcohol compound or a sugar alcohol polymer. The invention also discloses a preparation method of the gouache composition. The gouache composition disclosed by the invention has high aging resistance, high brightness and better dry-wet difference effect, and is suitable for professional art creation and occasions with higher requirements on quality of works.

The present invention provides a polyrotaxane represented by Formula (1). wherein R1 is a hydrogen atom or a methyl group, m is 1 to 2000, and n is 10 to 500, is a cyclodextrin in which at least one hydroxyl group is modified with a group represented by -X-NH2, and X is a divalent organic group.

A method for developing an antimicrobial includes coating a cyclodextrin-based metal-organic framework (CD-MOF-1) solution on a polypropylene fabric. The method further includes forming a MOF-coated fabric based on the CD-MOF-1 coating. The method further may load a benzalkonium chloride (BAC)-based surfactant on the MOF-coated fabric to develop the antimicrobial fabric.

The invention discloses a granulating method for sugarcane single-bud seed stems, and relates to the technical field of preparation of sugarcane seed stems. The specific pelletizing method comprises the following steps: sterilizing sugarcane single bud seed stems, and drying the surface moisture in the air; wrapping a layer of thin inner layer material outside the single-bud seed stem, and drying; wrapping a layer of thin middle layer material outside the seed stem containing the inner layer material, and drying; and wrapping a layer of thicker outer-layer material outside the seed stem containing the middle-layer material, and drying to obtain the sugarcane single-bud seed stem pill. According to the method, the single-bud section of the original seedling stem of the healthy sugarcane seedling is coated with three layers of materials, the problem that the nutrient and stress resistance requirements of the single-bud section are difficult to meet by adopting a conventional coating method is solved, the single-bud seed stem pellets prepared by adopting the method are used for planting, the germination rate is high, the tillering rate is high, the disease resistance is high, and the yield is high. And the sugarcane seedlings are not easily poisoned by soil acid and aluminum.

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.

The present invention provides a polyrotaxane which is represented by formula (1). (In the formula, R1 represents a hydrogen atom or a methyl group; m represents a number from 1 to 2,000; n represents a number from 10 to 500; formula (2) represents a cyclodextrin wherein at least one hydroxyl group is modified by a group that is represented by -X-NH2; and X represents a divalent organic group.)

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 invention discloses a color developing test paper card for rapidly detecting the polysaccharide content in a traditional Chinese medicine extracting solution based on a solid-phase carrier, and belongs to the technical field of traditional Chinese medicine content detection. According to the method, a cross-linked polymer is used as a solid-phase carrier, a DNS color developing agent and a stable-form color developing reaction film are adsorbed through an inclusion effect, color developing conditions of DNS and polysaccharide are optimized, a color developing card for rapid detection is prepared, and the polysaccharide content of the traditional Chinese medicine extracting solution is detected through a matched standard color chart and matched detection equipment. The rapid, visual and large-scale detection of the traditional Chinese medicine polysaccharide is realized, the rapid on-site detection analysis is facilitated, and the problems existing in the existing polysaccharide detection technology are solved.

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.

A solution containing cyclodextrin that imparts odor-eliminating properties to materials used in absorbent products, and related products and methods. The solution containing cyclodextrin that imparts odor-eliminating properties to materials used in absorbent products includes an optional polar organic solvent, water, cyclodextrin, and one or more odor-eliminating compounds. The solution can be used to uniformly apply a homogenous solution of cyclodextrin complexes onto a solid surface, which precipitates the cyclodextrin complexes in situ on the solid surface. The precipitates of cyclodextrin complexes deposited from these solutions quickly release odor-masking scents when hydrated with urine, and can be deposited on substrates more effectively than solid forms of cyclodextrin complexes.

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.

To provide a primer for concrete which has low viscosity, low odor, and excellent workability and gives a coating film excellent in curability, adhesion to a wet surface, and alkali resistance.SOLUTION: The primer for concrete is used which contains: a resin (A) having polymerizable unsaturated groups at both terminals; an unsaturated polyester (B); a (meth)acrylic monomer (C) having a nitrogen atom; a (meth)acrylic monomer (D) having a flash point of 70°C or higher other than the (meth)acrylic monomer (C); and a cyclodextrin derivative (E).SELECTED DRAWING: None

The invention provides a preparation method of a gallic acid coating based on radiation modification, and belongs to the technical field of preservation, and the preparation method comprises the following steps: cleaning walnut green seedcases with distilled water, airing, drying, and crushing to obtain walnut green seedcase powder; weighing walnut green seedcase powder, putting the walnut green seedcase powder into a dry centrifugal tube, adding an ethanol water solution, soaking, and carrying out ultrasonic extraction; cooling and centrifuging the crude gallic acid extracting solution, and collecting the crude gallic acid extracting solution; pouring the crude gallic acid extracting solution into activated macroporous resin, adsorbing and purifying, and concentrating under reduced pressure to obtain a gallic acid product; the method comprises the following steps: diluting gallic acid, irradiating and filtering to obtain an irradiated gallic acid solution; and adding the irradiated gallic acid solution into the beta-cyclodextrin solution, carrying out alcohol washing and vacuum filtration after the reaction is finished to obtain a filter cake, and re-dissolving the filter cake in water to obtain the irradiated gallic acid microcapsule suspension. The radiation modified gallic acid coating can isolate food from the external environment, and the purpose of food preservation is achieved.

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.

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.

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.

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.

The present invention belongs to the field of coating technology, and specifically relates to a high-flash-point phenolic anti-corrosion coating, a preparation method thereof, and an application thereof. The high-flash-point phenolic anti-corrosion coating comprises, by weight, 40-70 parts of xylene phenolic resin, 30-60 parts of hyperbranched polyester-modified phenolic resin, 10-15 parts of silicone-acrylic emulsion, 5-10 parts of modified glass fiber, 5-10 parts of pigment, 3-8 parts of solvent, 3-8 parts of a light stabilizer, a β-cyclodextrin inclusion complex, and 1-3 parts of a drying agent. The coating obtained from the phenolic anti-corrosion coating provided by the present invention has good adhesion, flexibility, long-term salt spray resistance, weather resistance, and resistance to moisture and heat.

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.

The invention relates to the technical field of pipeline anticorrosive materials, in particular to a preparation method and application of a two-component in-situ self-generated filler type coating, and the preparation method comprises the following steps: S1, dissolving a certain mass of zinc metal salt in a solvent to prepare a component A; s2, dissolving a certain mass of cyclodextrin substances and a plurality of organic matter molecules with corrosion inhibition or antibacterial functions in a solvent, and adding a high-molecular polymer material as a coalescing agent to prepare a component B; s3, mixing the component A and the component B according to a certain proportion, coating the interior of the pipeline of the large-length-diameter-ratio pipe with a filling coating method, and curing at 25-150 DEG C to obtain the in-situ self-generated nano filler type anti-corrosion and anti-bacterial dual-functional coating. The component A and the component B are almost uniform solution phases, the viscosity of the coating is low during preliminary mixing, the coating can be conveniently used for filling and coating large-length-diameter-ratio pipes, in-situ self-generation can be achieved through the nanometer filler, it is guaranteed that the adhesive force and corrosion resistance of the coating are excellent, and meanwhile the antibacterial performance of the pipeline is improved.

Solutions containing cyclodextrins for imparting odor control to materials used in absorbent products and related products and methods. The cyclodextrin-containing solution for imparting odor control to materials used in absorbent products contains an optional polar organic solvent, water, cyclodextrin, and one or more odor control compounds. The solution can be used to uniformly apply a homogeneous solution of a cyclodextrin complex to a solid surface, whereby the cyclodextrin complex is precipitated in situ on the solid surface. When hydrated with urine, the cyclodextrin complex precipitates deposited from these solutions quickly release odors that conceal the odors, and may deposit on a substrate more effectively than the cyclodextrin complex in solid form.