236results about "Paints with biocides" patented technology

In general, the present disclosure is generally directed to an antifouling composition. The antifouling composition may include a copper biocide and a biobased polymer. Beneficially, the antifouling composition may be incorporated around an antifouling paint having less than about 1% by weight of non-encapsulated copper biocide in the antifouling paint.

The present invention relates to a fouling control coating composition comprising an anionic polymer, an amine cation, and less than 5% by weight of water, wherein the anionic polymer has one or more covalently bonded siloxane moieties, the amine cation is a protonated amine compound, the boiling point of the amine compound (before protonation) at atmospheric pressure is at least 100°C, and the molecular weight is at least 70.

The application provides an antifouling coating material, an antifouling coating and a preparation method and application thereof. The antifouling coating prepared from the antifouling coating material provided by the application has a water contact angle of 105.8-161.5 degrees and a sliding angle of 1.5-24.1 degrees in a wavelength range of 200-2500 nm; a light absorption rate of 65.7-98.3 %; and a maximum light-heat surface temperature of 45.1-82.8 DEG C under 1 solar light intensity. Moreover, the antifouling coating has synergistic antifouling of superhydrophobic low adhesion and biological repellence, wide-spectrum high-efficiency and controllable light-heat antifouling capacity, all-weather antifouling capacity facing the air-water interface of the sea, and excellent mechanical durability and light-heat / wetting performance stability.

The application discloses a kind of light-assisted anticorrosion coating materials and preparation method based on metal coordination structure, the light-assisted anticorrosion coating material is on the basis of traditional anticorrosion metal zinc layer continue to be coordinated with the metal coordination polymer Co (bpy) (dhbq) (bq) with photoelectric conversion capability, and form coordination complex Co (bpy) (dhbq) (bq) @Zn.Because metal coordination polymer Co (bpy) (dhbq) (bq) itself can additionally generate photo-generated electron and photo-generated current after being illuminated, provide redundant charge for Zn layer, make it be in lower potential, strengthen the function of cathodic protection.Corrosion can be inhibited through this mechanism, prolong the service life of Zn layer, provide efficient, green anticorrosion protection for the steel material that needs to be protected.In addition, metal coordination light-assisted anticorrosion technology can also inhibit marine bioattachment by slowly releasing metal ions Co, prevent biofilm formation, reduce microbial growth, prolong the service life of protected material in marine environment, also applicable to underwater bioinduced corrosion and the protection of fouling metal structure.

The application discloses a light-weight heavy coating material for automobile non-woven carpet and a preparation method thereof, and belongs to the technical field of carpet production. First, the coating material comprises the following raw materials in parts by mass: 100 parts of EVA resin, 18-22 parts of modified shell powder, 13-15 parts of modified mildew-resistant agent, 4-5 parts of foaming agent, 2-3 parts of zinc stearate, 2-3 parts of cross-linking agent and 1-2 parts of pore-forming agent. The prepared heavy coating material has excellent sound insulation performance and excellent mildew resistance through the addition of the self-prepared modified shell powder and modified mildew-resistant agent. Moreover, the heavy coating material is prepared from light-weight raw materials, and the prepared heavy coating material has the advantage of light weight after foaming and molding.

This solution relates to the coatings field and proposes an aqueous nano-dispersion of far-infrared negative oxygen ion material. By weight, it comprises: 300-350 parts water; 35-45 parts wetting agent; 40-60 parts dispersant; 25-35 parts defoamer; 35-45 parts multifunctional additive; 5-7 parts thickener; 400-600 parts activated far-infrared negative oxygen ion material; 1-3 parts accelerator; and 3-5 parts shielding agent. This solution designs a multi-component synergistically promoting activated far-infrared negative oxygen ion material, which can improve the hemispherical spectral emissivity in the 4-14μm band, even reaching above 0.95 in the key 8-12μm band, effectively promoting formaldehyde decomposition with a long-lasting effect, while also improving antibacterial properties.

The application belongs to the technical field of nanomaterials, and particularly relates to a graphene oxide composite nanocoating, application thereof and modified dental metal material. The obtained graphene oxide composite nanocoating overcomes the problem of easy agglomeration of GO alone, has the advantages of long-term antibacterial property, strong corrosion resistance, low toxicity, good remineralization effect on dental enamel, reduced occurrence of dental demineralization and dental caries, effectively reduced friction between dental metal materials, especially between metal materials for orthodontic treatment, is conducive to the sliding between arch wires and bracket grooves in the orthodontic process, and further conducive to improving the efficiency of aligning and flattening the dental arch in orthodontic treatment and shortening the treatment course. In addition, the application has the characteristics of simple operation, low cost and strong controllability, and provides a simple and universal strategy for preparing dental metal materials with long-term antibacterial property, corrosion resistance, low toxicity, good remineralization effect and low friction.

A display device includes a protective layer facing a display panel with a window therebetween, and the protective layer includes in order from the window: a base layer; and a surface coating layer having a single film structure. The surface coating layer includes an impact resistance layer and an anti-fingerprint material within the impact resistance layer.

The application discloses a spraying type urushiol antibacterial waterproof paint and a preparation method thereof, and belongs to the technical field of biomass paint, and comprises the following steps: carrying out a thermal polymerization reaction on urushiol and pyrogallic acid at high temperature to obtain a high-polyphenol polymer; then taking the high-polyphenol polymer as raw material, blending the high-polyphenol polymer with other additives, and then reacting with diisocyanate to obtain the urushiol antibacterial waterproof paint. The paint has good film forming property, corrosion resistance and antibacterial waterproof property, and can be widely applied to the fields of medical devices, food equipment, furniture decoration and building paint.

Radiative cooling paint mixtures, single-layer radiative cooling paints formed therefrom, and methods of producing and using such mixtures and paints. The radiative cooling paint mixtures contain a water-based silicone-derived binder, water in which the water-based silicone-derived binder is diluted, a hydrophobing agent, and a radiative cooling pigment, and single-layer radiative cooling paints formed therefrom. The radiative cooling paints emit more thermal energy than solar energy they absorb, thereby achieving a passive radiative cooling effect, while simultaneously achieving hydrophobic and weather-resistance properties and enhanced mechanical integrity.

This invention discloses a low surface energy active-passive synergistic antifouling coating and its preparation method, belonging to the field of marine antifouling materials technology. The preparation method of the antifouling coating includes the following steps: S1, mixing acetone and xylene and stirring under a nitrogen atmosphere to form a mixed solvent; S2, adding vinyl-terminated silicone resin and acrylic resin to the mixed solvent, stirring and heating to obtain a coating base liquid; S3, adding an initiator to the coating base liquid and continuously stirring and heating to react; S4, after the reaction is complete and the coating base liquid cools, adding functional fillers to form a coating liquid; S5, coating the coating liquid and drying to obtain a low surface energy active-passive synergistic antifouling coating. The low surface energy active-passive synergistic antifouling coating prepared by this invention solves the problem in existing marine antifouling technologies where the single antifouling mechanism prevents the simultaneous consideration of environmental friendliness and long-term effectiveness, and has broad application prospects in the field of marine antifouling materials technology.

This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.

The application relates to the technical field of building, and discloses indoor sound insulation and antibacterial coating, which is applied to the surface of a building wall base layer and comprises, from inside to outside, a high-permeability alkali-resistant sealing primer layer, a porous composite sound-absorbing middle layer for gap friction attenuation of sound waves, an antibacterial agent slow-release depot layer for providing long-acting antibacterial active substances, and a photocatalytic sterilization and purification layer. The composite coating system of the application resolves the technical problems of easy agglomeration of sound-absorbing fillers and nanometer antibacterial agents in direct blending in traditional processes and mutual hindering of the effects by scientifically constructing a multi-dimensional functional layered system. The system not only realizes excellent broadband sound insulation and noise reduction effects by virtue of the composite acoustic structure of quality reflection, porous dissipation and damping heat conversion, but also combines the double-effect biochemical mechanisms of deep ion slow release and surface photocatalysis to ensure long-acting broad-spectrum sterilization and decomposition of volatile organic compounds.

The application discloses a preparation method of a corrosion and pollution prevention integrated marine protective coating, and comprises the following steps: (1) dispersing dopamine hydrochloride, hexagonal boron nitride powder and a buffer in an ethanol aqueous solution, fully reacting under weak alkaline conditions, cleaning and drying the obtained solid substance, and obtaining dopamine modified hexagonal boron nitride powder, i.e. a polydopamine film layer is wrapped outside the hexagonal boron nitride powder; (2) adding the dopamine modified hexagonal boron nitride powder of step (1), aminated cage-type silsesquioxane and a dehydration condensation reaction catalyst into a mixed solvent of an organic solvent and water, fully reacting, cleaning and drying the obtained solid substance, and obtaining dopamine modified hexagonal boron nitride powder loaded with aminated cage-type silsesquioxane; i.e. a plurality of POSS-NH2 nanoparticles are grafted outside the polydopamine film layer; (3) adding the dopamine modified hexagonal boron nitride powder loaded with aminated cage-type silsesquioxane as a filler into an organic resin system, uniformly dispersing, obtaining a coating, brushing or spraying the coating onto a substrate, and obtaining the corrosion and pollution prevention integrated marine protective coating after solidification.

Seed pillows are disclosed herein. An exemplary seed pillow may include a first water-soluble film, a seed cluster disposed on the first water-soluble film, and a second film that is positioned over the first water-soluble film and the seed cluster. The second film may have a first portion that is fused to a second portion of the first water-soluble film from ultrasonic vibrations. Further, the first water-soluble film and the second film may be shrink-wrapped around the seed cluster through heat application to the first water-soluble film and the second film for a first period of time.

This utility model relates to the field of functional thin film materials. The disclosed easy-to-tear anti-reflective protective film comprises an antibacterial layer, an anti-reflective layer, a base film layer, and an adhesive layer. The antibacterial layer contains antibacterial materials such as nano-silver, effectively inhibiting bacteria and creating a hygienic environment for the protected object. The anti-reflective layer uses materials such as silica to reduce light reflection and improve visual clarity. The base film layer uses materials such as polyethylene terephthalate to provide good support and ensure structural stability. The adhesive layer has strong and weak adhesive zones. The strong adhesive zones are located at both ends or the outer periphery of the ring to enhance edge fixation and prevent displacement; the weak adhesive zones are located in the middle or center, with an appropriate thickness for easy tearing and reducing the risk of accidental tearing. This reasonable layout ensures uniform stress distribution, and the weak adhesive zones also buffer external forces. This layout is highly versatile, convenient for production, and helps improve efficiency, stabilize quality, and reduce costs.

The application belongs to but is not limited to the technical field of material functional coating, and a multi-substrate adapted high-adhesion wear-resistant super-hydrophobic composite coating and a preparation method thereof are provided.Step one, a KH-570 solvent with a specific concentration is prepared;step two, KH-570 substrate pretreatment is performed;step three, fluorinated silicon dioxide is dispersed;step four, a silane precursor modified solution is prepared;step five, resin compounding is performed;step six, coating spraying, curing and performance testing are performed;step seven, material characterization and analysis are performed;and step eight, application testing and optimization are performed.Through the synergistic effect of KH-570 silane coupling agent pretreatment of the substrate and the fluorinated silicon dioxide / silicone resin composite coating, the super-hydrophobicity and wear resistance of the coating are significantly improved, while the high light transmittance and strong adhesion are maintained.The technology is suitable for optical device protective coating, building glass self-cleaning surface, medical device anti-fouling coating and other fields, and the universal spraying process can realize uniform film formation on complex substrates.

The application relates to a two-component main-chain degradable and side-chain hydrolytic marine antifouling paint and a preparation method thereof, and relates to the technical field of marine antifouling paint. The paint comprises A component and B component. The A component comprises the following components in parts by weight: main-chain degradable and side-chain hydrolytic marine antifouling resin 30-60 parts, silane coupling agent 0-2 parts, red cuprous oxide 0-30 parts, organic antifouling agent 0-20 parts, pigment and filler 2-40 parts, thixotropic agent 0-1 part, anti-sagging agent 0-3 parts, and solvent 0-5 parts. The B component is a curing agent containing isocyanate groups. The prepared antifouling resin has excellent main-chain degradability and side-chain hydrolysis performance. During use, the marine antifouling resin can continuously release acid substances which are abhorred by marine microorganisms. Even in a static state, the coating surface can be gradually renewed through main-chain degradation, so that the antifouling effect is well achieved.

The present disclosure provides a self-healing polyurethane resin and a preparation method thereof. The preparation method of the self-healing polyurethane resin coating comprises the following steps: polytetrahydrofuran is placed in a three-necked flask, heated to remove water and kept in an oxygen-free environment; a certain amount of isophorone diisocyanate and a catalyst dibutyltin dilaurate, anhydrous tetrahydrofuran are added into the system and reacted at this temperature; the system is cooled and 1,4-butanediol or bis(2-hydroxyethyl)disulfide, anhydrous tetrahydrofuran are added into the system for reaction; after the reaction is completed, the system is immediately cooled, more than solvent is spun off by rotary evaporation, the product is coated on the surface of a substrate and solidified to form a coating. The obtained coating has high self-healing ability, long healing life, low curing temperature, and excellent mechanical properties and corrosion and stain resistance.

The present application relates to the technical field of ink curing coating, and discloses a preparation method of external wall stone-like thermal insulation coating, which is composed of the following components in mass fraction: 30-50 parts of acrylic emulsion, 8-20 parts of glass powder, 5-15 parts of ceramic powder, 15-30 parts of natural stone powder, 10-25 parts of sand, 0.3-1.2 parts of thickening agent, 0.5-1.5 parts of wetting dispersant, 1.5-3.5 parts of film-forming aid, 1-5 parts of mildew-resistant weathering agent and 50-80 parts of water. The external wall stone-like thermal insulation coating of the present application forms a micro heat insulation layer in the coating by adding components such as glass powder and ceramic powder, effectively reduces heat conduction, reduces the energy consumption of buildings, and achieves good thermal insulation effect. The mildew-resistant weathering agent used is a new compound, which can achieve long-term bacteriostasis by destroying the cell wall of mold or interfering with its metabolic enzyme system. It has high stability and is not easy to decompose in a humid environment, and can provide long-lasting mildew protection for buildings.

This invention discloses a copper / hydrogen peroxide synergistic-induced dopamine surface self-polymerization coating and its preparation method, relating to the field of surface and interface modification technology. The specific preparation method is as follows: Buffer solution A is prepared using an organic amine buffer solution; copper salt is added and ultrasonically dispersed to obtain a copper-containing solution B; a substrate pretreated with acid washing is immersed in solution B; a dopamine precursor is added to obtain a mixed solution C; then an aqueous hydrogen peroxide solution is added, and the reaction is carried out under light-protected conditions to form a dopamine polymer coating in situ on the substrate surface. After washing and drying, a modified substrate with a copper / hydrogen peroxide synergistic-induced dopamine coating is obtained. 2+ It exhibits a significant synergistic effect with H2O2 in inducing oxidative polymerization, reflecting the combined effect of coordination site saturation and subsequent layer coverage. This invention achieves higher film-forming efficiency and interfacial stability through short-time impregnation and optimized reaction sequence, making it suitable for rapid modification of glass-like inert substrates.

This invention provides a low-VOC, environmentally friendly exterior wall anti-efflorescence alkaline primer emulsion, its preparation method, and its application. The raw materials of this primer emulsion, by weight, include: 0.8-1.7 parts of biodegradable emulsifier, 0.2-1.0 parts of reactive emulsifier, 13-25 parts of styrene, 13-23 parts of acrylate monomers, 0.6-1.6 parts of unsaturated carboxylic acids, 0.3-0.7 parts of acrylamide monomers, 0.25-0.5 parts of silane coupling agent, 0.3-0.5 parts of persulfate initiator, 0.06-0.09 parts of post-treatment agent, 0.6-1.6 parts of pH adjuster, 0.03-0.12 parts of plant-based defoamer, and 42-54 parts of deionized water. This invention employs a combination of biodegradable and reactive emulsifiers, along with seed emulsion polymerization and flash stripping post-treatment processes, to achieve an emulsion VOC content ≤10g / L, meeting the GB 18582-2020 standard, and exhibiting excellent resistance to salt efflorescence, sealing properties, and water resistance.

Biofilms may undesirably form upon various surfaces under a range of conditions. Biofilm-resistant articles may comprise a surface subject to biofilm formation that is adapted to contact a liquid at least periodically; and a coating comprising metal nanoparticle agglomerates adhered to at least a portion of the surface. The metal nanoparticle agglomerates may at least partially inhibit formation or proliferation of a biofilm upon the surface of the article.

The invention relates to a method for producing a coated wooden component that has biological protection against infestation by wood-destroying and / or wood-staining fungi, based on impregnation or pretreatment with a pre-culture and / or with spores of a fungus, in particular of the genus Trichoderma, that acts antagonistically towards wood-destroying and / or wood-staining microorganisms. The invention further relates to a wooden component produced by the method and its use as a building material in building construction, particularly in exterior applications.

The application discloses a kind of isobornyl methacrylate, antibacterial polyurethane coating, isobornyl methacrylate is used to prepare water-based polyurethane coating, the isobornyl methacrylate is by pretreatment containing combined with ethoxysilane group;The addition amount of the isobornyl methacrylate in water-based polyurethane coating is 3~5%.The isobornyl methacrylate combined with ethoxysilane group is used as modified component in the water-based polyurethane coating system of the application, so that the water-based polyurethane coating not only inherits the original excellent performance, and the tensile strength and thermal stability of coating film are improved, and water absorption is reduced, more waterproof ability and stability.

The present application belongs to the field of synthesis of marine antifouling coatings, and particularly relates to an ecological friendly marine antifouling coating with degradability, antibiosis and self-polishing and a preparation method thereof. A multifunctional marine antifouling coating is prepared by catalyzing the reaction of elemental sulfur, binary or multi-acrylate and acrylate containing silicon groups by soluble organic base or cheap inorganic base with adjustable alkalinity. The binary or multi-acrylate enables the coating to have degradability, the introduction of elemental sulfur endows the coating with antibiosis, and the acrylate containing silicon groups provides the coating with excellent self-polishing effect. The synthesis method is efficient and simple, the catalysts and monomers that can be used are various, the polymerization conditions are mild, and the obtained marine antifouling coating integrates multiple functions, namely, degradability, antibiosis, self-polishing and good biocompatibility, thereby providing an effective way for the production of high-quality multifunctional marine antifouling coatings.

A silicone release coating emulsion includes a curable silicone release coating composition dispersed in an aqueous phase. The silicone release coating emulsion can be coated on a substrate (such as paper) to form a wet deposit, dried to form a layer of the silicone release coating composition on the substrate, and cured to form the silicone release coating on the surface of the substrate. The coated substrates are useful in food contact applications such as bakery release.

The present invention provides a new technique for less likely causing defects of a coating film on the surface of a woven fabric, a knitted fabric or a nonwoven fabric due to rubbing. A fiber aggregate characterized in that at least a part of the surface thereof is coated, the fiber aggregate having a base material composed of a woven fabric, a knitted fabric or a nonwoven fabric, and a coating film covering at least a part of the surface of the base material, the coating film having a Martens hardness of 200 N / mm2 or less when measured at a maximum indentation depth of 100 nm or less 2 and less than 230 N / mm2 2 .

A method of treating a surface, the method comprising the step of contacting the surface with a composition comprising a polymer, wherein the polymer is obtainable by polymerising a mixture of monomer