6 results about "Phytenic acid" patented technology

This invention relates to the field of porous thermal insulation materials, and discloses a fireproof and heat-insulating material and its preparation method. The material is an aerogel comprising a polyimide framework, two-dimensional transition metal carbonitride nanosheets, and phytic acid. The aerogel contains multiple unidirectional, parallel tubular or layered channels, each surrounded by a pore wall. The pore wall is composed of a cross-linked network formed by chemical bonds connecting phytic acid, two-dimensional transition metal carbonitride nanosheets, and the polyimide framework. This invention uses phytic acid as a cross-linking agent and an in-situ catalytic charring agent, overcoming the defect of easy agglomeration of nanosheets and generating a dense carbonized layer upon heating, effectively supporting the pore walls and preventing the porous framework from collapsing. Combined with the heat conduction blocking effect of the unidirectional channels, the material exhibits excellent low thermal conductivity, high mechanical strength, and extremely stable high-temperature shrinkage insulation properties, making it suitable for fireproof and heat-insulating protection in extreme environments.

This invention relates to the fields of modified graphene technology and anti-corrosion materials technology, specifically to a modified graphene material and its preparation method, an anti-corrosion coating and its preparation method and application, and an anti-corrosion coating and its application. The modified graphene material includes graphene oxide and ammonium phytate grafted onto the surface of graphene oxide via amide bonds. The structural formula of the ammonium phytate is shown in formula (I). In formula (I), * represents the N-linked site in the amide bond; R1 is selected from one of the groups formed by removing two terminal amine groups from a C2-C10 alkylene group or an n-ethylene(n+1)amine, where n is an integer and 2≤n≤6. The modified graphene of this invention has the advantages of strong dispersibility in water-based coatings and strong adhesion to metal substrates. When applied to water-based anti-corrosion coating resins, it improves the adhesion, high barrier properties, and corrosion resistance of the coating.

The application discloses an antibacterial and breathable elastic fiber fabric and a preparation method and application thereof, and belongs to the field of high polymer fiber fabric preparation. The antibacterial and breathable performance and elasticity of the fiber fabric need to be further improved. The application is to prepare a fiber-forming elastomer containing a siloxane flexible chain segment, a disulfide bond unit and an unsaturated side group, to further prepare a bridged wetting functional body with a catechol group, a sulfur-containing group and a zwitterionic structure, and to construct an antibacterial and breathable finishing agent containing a silicon oxide network, a phytic acid-zinc coordination structure and a tannic acid multi-point binding action. The antibacterial and breathable elastic fabric is prepared through the synergistic action of the three. The antibacterial and breathable elastic fabric can consider the antibacterial property, the wetting property, the breathability and the elastic recovery performance of the fabric, and can improve the structural stability and the wearing comfort.

This invention relates to the fields of polymer materials and textile engineering, and discloses a high-toughness polyester fabric and its preparation method. The fabric is composed of polyester fibers, a borate-aluminum phytate-silica doped modifier, hydroquinone, and various auxiliaries. The borate-aluminum phytate-silica doped modifier is composed of a dynamic network of borate esters formed by boric acid and polyvinyl alcohol, a coordination structure formed by phytic acid and aluminum ions, and silica doping. By constructing a synergistic reinforcement system with dynamic reconstruction capabilities and multi-point interfacial interactions, and combining this with the regulation of intermolecular forces by hydroquinone, the modified structure is uniformly distributed at the interface and within the polyester fibers, thereby significantly improving the fabric's elongation at break, impact resistance, fatigue resistance, and abrasion resistance. The method of this invention is simple, highly applicable, and yields a polyester fabric with excellent comprehensive performance and promising application prospects.

The application discloses a composite copper foil and a preparation method and application thereof, and relates to the technical field of copper foil, and discloses a composite copper foil which comprises a copper foil and a molecular-level dense protective film coated on the surface of the copper foil, wherein the copper foil has a nano-twin crystal structure, and the molecular-level dense protective film is formed by using a composite passivation solution containing phytic acid and tannic acid for treatment. The pulse electroplating and the immersion coating passivation process are highly compatible with the existing industrial production line, and thus, large-scale production can be realized without major equipment modification. More importantly, a significant synergistic enhancement effect is generated between the nano-twin crystal substrate and the bio-based passivation layer, so that the final product reaches an optimal balance in terms of multiple key performance indicators such as electrical conductivity, thermal stability, and bonding force with the base material, and a solution with leading comprehensive performance is provided.

The application belongs to the technical field of nanomaterials, and provides a CaPhy-NAD nanoenzyme, a preparation method, application and an alcoholism treatment preparation thereof. The CaPhy-NAD nanoenzyme is prepared by using calcium phytate nanoparticles as a carrier and in-situ loading of ethanol oxidase, acetaldehyde dehydrogenase, horseradish peroxidase and coenzyme NAD. 2+ The CaPhy-NAD nanoenzyme can effectively activate the catalytic activity of acetaldehyde dehydrogenase, and the three enzymes can have a high-efficiency confined cascade reaction in the pore channel of the calcium phytate nanoparticles, so that the recycling of the coenzyme NAD is realized, and the three types of alcohol metabolism-related toxic substances, i.e., ethanol, acetaldehyde and hydrogen peroxide, can be simultaneously removed. The CaPhy-NAD nanoenzyme prepared by the application has excellent catalytic activity and good biological safety, and can be orally administered, thereby providing a new technical idea and solution for the prevention and treatment of alcoholism.