10 results about "Nano hybrid" patented technology

This invention relates to the field of shape memory material preparation technology, specifically to a bio-based shape memory Eucommia ulmoides gum composite material and its preparation method. All components of the composite material are of entirely bio-based origin, using natural Eucommia ulmoides gum as the matrix. Nano-hybrid seed crystals composed of cellulose nanocrystals and carbon quantum dots are introduced. The cellulose nanocrystals act as nucleating agents, guiding and accelerating the cooling crystallization of the Eucommia ulmoides gum, while the carbon quantum dots form the shell, improving heat transfer efficiency. In the preparation process, this application uses triacylglycerol lipase as a biocatalyst, which can initiate an in-situ esterification reaction between the filler and the matrix at a low temperature of 65-75℃. This not only reduces energy consumption but also avoids the thermal degradation and damage to the Eucommia ulmoides gum macromolecular chains caused by high-temperature strong shear, achieving high performance and batch-to-batch stability of the material.

This invention discloses an organosilicon-modified acrylic resin coating, its preparation method, and its application, belonging to the field of surface protection technology. The organosilicon-modified acrylic resin coating of this invention comprises the following raw materials in parts by weight: 92-99 parts of organosilicon-modified acrylic resin and 1-8 parts of modified SiO2@FGO nano-hybrids. This invention achieves surface modification of graphene oxide using a silane coupling agent, and further obtains the coating through in-situ hydrolysis deposition and modification of SiO2 nanoparticles. The organosilicon-modified acrylic resin coating with composite nanofiller exhibits excellent resistance to chloride ion corrosion, carbonization, alkali resistance, weather resistance, and adhesion, and can be used for surface protection of marine reinforced concrete engineering projects.

This invention discloses a method for preparing a highly flame-retardant and smoke-suppressing epoxy resin-based composite fireproof coating, comprising the following steps: mixing Fe-CoMOF powder or Fe-CoMOF@BN nano-hybrid powder with ammonium polyphosphate, acetone, and a curing agent to obtain a fireproof filler; then uniformly mixing the fireproof filler with epoxy resin, followed by heating and stirring, vacuum degassing, and staged curing to obtain a highly flame-retardant and smoke-suppressing epoxy resin-based composite fireproof coating. The fireproof coating prepared by this method has advantages such as low synthesis temperature, simple process, and short reaction time. The coating exhibits high flame retardancy, high smoke suppression, fire resistance, and high temperature resistance. It is simple to operate, has low cost, and can increase the service temperature of high-temperature cable conductors, extend their high-temperature service life, and improve the fire safety performance of high-temperature cable conductors.

This invention discloses a crack-resistant and explosion-proof glass bottle and its preparation method, relating to the field of glass bottle manufacturing technology. The glass bottle is characterized by a composite coating formed by modified hyperbranched waterborne polyurethane on its surface. The polyurethane is copolymerized from polycarbonate diol, diisocyanate, and hyperbranched polyester polyol containing sodium sulfonate groups, and incorporates modified composite filler. This filler is prepared by pre-hybridizing aminated graphene oxide with epoxy hollow silica, bonding them through chemical bonds. During preparation, the filler is first reacted with a polyurethane prepolymer, then emulsified to obtain a coating emulsion, which is then dip-coated and cured to form a film on the glass bottle surface. This invention enhances the toughness of the matrix through hyperbranched structure, achieves stable emulsification and antistatic properties using sodium sulfonate groups, and significantly improves the mechanical strength, wear resistance, and impact resistance of the coating through chemically bonded nano-hybrid filler.

The application provides an agricultural low-deformation bias tire rubber composition suitable for slope operation and a preparation method thereof, and comprises the following components in parts by weight: 100 parts of high-performance hydrolysis-resistant polyether type polyurethane prepolymer, 12-15 parts of bifunctional dynamic chain extender, 18-22 parts of nano hybrid reinforcing filler, 1.5-2.0 parts of composite silane coupling agent, 0.8-1.2 parts of hydrophobic end-capping modifier, 2.0-2.5 parts of composite anti-aging additive, 0.3-0.5 parts of dynamic micro-repair additive, 0.2-0.3 parts of organic bismuth catalyst and 0.5 parts of water-based release agent; the low-deformation bias tire rubber composition prepared in the application can effectively dissipate the alternating lateral load of the slope, and the stability of steep slope and muddy slope is greatly improved.

The application belongs to the technical field of flame-retardant fabrics, and particularly relates to a flame-retardant composite fabric with a three-dimensional interlocking gradient structure and a preparation method thereof, which comprises a three-dimensional fiber skeleton and a nano-hybrid flame-retardant network; the three-dimensional fiber skeleton is a flame-retardant fiber fabric which is modified by low-temperature plasma and has a silane coupling bridge layer grafted on the surface; the nano-hybrid flame-retardant network is formed by in-situ crosslinking of transition metal carbide nanosheets and polyamide acid precursors, and is filled in the gaps of the three-dimensional fiber skeleton; and the nano-hybrid flame-retardant network is asymmetrically distributed in a gradient on the three-dimensional fiber skeleton and is anchored through covalent bonding, forming a three-dimensional interlocking interpenetrating network structure.

This invention discloses a waterborne acrylic polyurethane topcoat and its preparation method, comprising component A and component B. Component A comprises the following components: 35-50 parts of high and low molecular weight compounded hydroxyl acrylic resin, 2-5 parts of modified nano-hybrid material, 15-25 parts of composite functional filler, 1-3 parts of latent catalyst, 3-6 parts of additives, and 20-30 parts of deionized water. Component B is a crosslinking agent. The modified nano-hybrid material is a hybrid material formed by in-situ composite of nano-boron nitride modified with a silane coupling agent and graphene oxide. The latent catalyst is a metal complex formed by pre-complexing a metal compound with a complexing agent. Through the high and low molecular weight compounded resin system, the contradiction between fast drying and high fullness and high crosslinking density is successfully resolved, achieving fast surface drying and rapid hard drying of the paint film, while also possessing high gloss and excellent mechanical properties.

The application discloses a kind of low condensation fire-resistant synthetic hydraulic oil and preparation method thereof in the technical field of high-performance special lubricant, the hydraulic oil uses pentaerythritol oleate as base oil, and cooperates with multiple functional additives, key in that γ-ammonia propyl triethoxysilane surface modified layered zinc boron aluminate hydroxide and γ-ammonia propyl triethoxysilane surface modified hafnium-doped silicon dioxide coated titanium carbide nanohybrid are added.The preparation, first base oil and organic additives such as anti-oxidation, anti-wear, rust prevention are mixed, then two kinds of modified materials are uniformly added by shear dispersion process.Layered material uses coprecipitation and calcination reconstruction process to introduce boron element into layer, and nanohybrid is uniformly doped with hafnium in silica shell layer by sol-gel method.The hydraulic oil prepared by the application has excellent low-temperature fluidity, outstanding fire resistance, good thermal oxidation stability and excellent extreme pressure and wear resistance, and is suitable for harsh industrial environment with fire hazard.

The application discloses a kind of low condensation fire-resistant synthetic hydraulic oil and preparation method thereof in the technical field of high-performance special lubricant, the hydraulic oil uses pentaerythritol oleate as base oil, and cooperates with multiple functional additives, key in that γ-ammonia propyl triethoxysilane surface modified layered zinc boron aluminate hydroxide and γ-ammonia propyl triethoxysilane surface modified hafnium-doped silicon dioxide coated titanium carbide nanohybrid are added.The preparation, first base oil and organic additives such as anti-oxidation, anti-wear, rust prevention are mixed, then two kinds of modified materials are uniformly added by shear dispersion process.Layered material uses coprecipitation and calcination reconstruction process to introduce boron element into layer, and nanohybrid is uniformly doped with hafnium in silica shell layer by sol-gel method.The hydraulic oil prepared by the application has excellent low-temperature fluidity, outstanding fire resistance, good thermal oxidation stability and excellent extreme pressure and wear resistance, and is suitable for harsh industrial environment with fire hazard.