22results about How to "Improve interface bonding performance" patented technology

The invention relates to the field of fire hoses, and provides a flame-retardant high-strength fire hose and a preparation method thereof.The fire hose sequentially comprises an outer protection layer, a flame-retardant layer, a woven layer, a reinforcing layer and a lining layer from outside to inside; the flame-retardant layer contains a surface-modified magnesium hydroxide micro-tube coated flame retardant, so that the flame-retardant effect is enhanced; the reinforcing layer contains the surface-modified bead-shaped silicon carbide nanowires, so that the mechanical property of the reinforcing layer can be remarkably improved. The five-layer composite structure and the design of multiple functional materials are adopted, comprehensive improvement of flame retardance, mechanical property, use convenience and the like is achieved, the problem that a traditional fire hose is insufficient in flame retardance and mechanical property is solved, and the fire hose has wide application value.

The invention discloses magnesium-based hydrogen-rich bone cement as well as a preparation method and application thereof. The magnesium-based hydrogen-rich bone cement is prepared by mixing and curing powder and curing liquid, the powder comprises the following components in parts by mass: 50-80 parts of structural powder, 10-15 parts of a bonding consumable, 5-10 parts of a healing accelerant and 15-40 parts of an auxiliary agent, the structural powder comprises reinforcing powder and compatible powder, the reinforcing powder comprises at least one of calcium silicate and calcium phosphate, and the compatible powder comprises at least one of magnesium silicate and magnesium phosphate; the healing accelerant comprises a biodegradable polymer and a magnesium-based material embedded in the biodegradable polymer; and after the powder and the curing liquid are mixed and cured, surface activation treatment is applied, and at least part of the bonded consumables are removed. The magnesium-based hydrogen-rich bone cement disclosed by the invention can be applied to preparation of bone defect repair materials, can relieve local tissue inflammatory response, and is high in oxidation resistance, long in oxidation resistance duration, few in organic residues on the ceramic surface of the bone cement and good in biocompatibility.

The invention relates to a corrosion-resistant cable sheath material and a preparation method thereof, and relates to the technical field of cable materials, the corrosion-resistant cable sheath material comprises the following raw materials by weight: 95-105 parts of a base material, 5-10 parts of polyvinylpyrrolidone, 10-18 parts of modified zinc oxide, 1-2 parts of an antioxidant, 0.4-0.8 part of a vulcanizing agent, and 4-8 parts of a plasticizer. Compared with the prior art, the special modified zinc oxide and the polyvinylpyrrolidone in a proper K value range are mainly introduced, and all the components have a synergistic effect, so that the corrosion-resistant stability of the material is remarkably improved, the service life of the cable is prolonged, and the use requirements in the field of submarine underwater cable sheaths are met.

The invention discloses a fiber-reinforced ultra-high performance concrete, belongs to the technical field of concrete, and the fiber-reinforced ultra-high performance concrete provided by the invention comprises, by weight, 400-600 parts of coarse aggregate, 600-800 parts of fine aggregate, 80-200 parts of silica fume, 500-800 parts of cement, 100-200 parts of fly ash, 150-250 parts of modified steel fiber, 20-60 parts of modified polyester fiber, 15-40 parts of water reducer and 150-200 parts of water. The present invention reduces the usage of steel fiber by modifying steel fiber and introducing flexible modified polyester fiber, greatly reduces the problems of easy agglomeration and uneven distribution of steel fiber by improving the interfacial bonding performance between steel fiber and matrix, and significantly improves the compressive strength, flexural tensile strength, fracture energy and high temperature residual performance of concrete matrix.

The invention discloses a high-performance water-based automotive interior adhesive and a preparation method thereof, and relates to the technical field of automotive interior adhesives. The high-performance water-based automotive interior adhesive is prepared from the following components in parts by mass: 30 to 50 parts of modified water-based polyurethane emulsion, 15 to 30 parts of acrylic emulsion, 5 to 15 parts of tackifying resin, 2 to 6 parts of coalescing agent, 0.5 to 3 parts of cross-linking agent, 0.1 to 0.5 part of flatting agent, 0.1 to 0.5 part of defoaming agent, 0.2 to 1 part of thickening agent, 0.05 to 0.3 part of preservative and 10 to 25 parts of deionized water. The water-based polyurethane emulsion is subjected to surface modification through the coupling agent with a specific structure, the bottleneck that the interface bonding force between a traditional water-based adhesive and PP and other low-surface-energy and non-polar base materials is insufficient is broken through, and high peel strength can be achieved without flame, corona or prime coat or other pretreatment procedures on the PP base materials; and the bonding process flow of the automotive interior trim parts is greatly simplified.

The invention relates to the technical field of electrical insulating materials for power transmission lines, and discloses a low-temperature-toughness durable high-hydrophobicity epoxy resin hybrid insulating material and a preparation method thereof. Comprising 50-100 parts of an epoxy monomer, 5-50 parts of a siloxane-based epoxy monomer, 30-80 parts of a curing agent, 8-20 parts of a polysiloxane modifier, 10-30 parts of a composite filler, 1-10 parts of an acid-base accelerator, 80-160 parts of aluminum hydroxide, 80-120 parts of silicon powder and 5-25 parts of a silane coupling agent. A chemical network structure on a molecular level is designed, a siloxane epoxy monomer with excellent low-temperature mechanical toughness and high hydrophobicity is introduced, a polysiloxane chain segment is subjected to modification treatment and chemically crosslinked with a functional group of a curing agent, the problem of interfacial compatibility is solved, a composite filler capable of improving compatibility is added, and the curing agent is prepared. According to a free radical reaction mechanism, the surface of the formed insulating material is subjected to rapid fluorination treatment, and the epoxy resin-based hybrid insulating material is endowed with mechanical toughness and lasting hydrophobic performance in a low-temperature environment.

The invention discloses a polyphenylene sulfide composite material with good adhesion of epoxy resin and a preparation method of the polyphenylene sulfide composite material. The polyphenylene sulfide composite material is prepared from the following raw material components in parts by mass: 30 to 50 parts of polyphenylene sulfide, 30 to 45 parts of glass fiber, 5 to 20 parts of inorganic filler, 0 to 2 parts of elastomer toughening aid, 0.2 to 0.3 part of coupling agent, 0.5 to 1.5 parts of silicone powder and 0.1 to 0.3 part of phosphate end-capping agent. According to the invention, the polyphenylene sulfide composite material has excellent bonding performance with epoxy resin adhesives under the condition that no elastomer is used or a small amount of elastomer is used, and is especially suitable for being used as a capacitor shell material.

The invention discloses nano-aluminum modified hexogen energetic microspheres and a preparation method thereof, relates to the technical field of energetic materials, and in particular relates to a material which is formed by tightly combining tannic acid modified hexogen and 3-mercaptopropyltrimethoxysilane modified nano-aluminum powder in a chemical coating manner and has a core-shell structure. Through chemical coating and close combination of hexogen and nano aluminum powder, the energetic microspheres can rapidly initiate chemical reaction during ignition, so that the combustion process is accelerated, the combustion efficiency is improved, the chemical coating is also beneficial to improving the thermal stability of the energetic microspheres, and the safety risk in the storage and transportation processes is reduced.

The invention relates to a composite conductive ink containing a mica functional filler and a preparation method thereof, and relates to the field of conductive inks, the composite conductive ink comprises the following components by weight: 15-25 parts of organic resin, 20-35 parts of a solvent, 15-20 parts of a first conductive filler, 10-15 parts of a second conductive filler, 0.8-2 parts of a coupling agent, and 3-5 parts of an auxiliary agent; the first conductive filler is modified mica powder, and the modified mica powder is obtained by modifying mica powder through carbon dioxide supercritical fluid carrying imidazolium ionic liquid containing long straight chain alkyl. Compared with the prior art, the special modified mica powder and the special modified flaky copper powder are mainly introduced and are matched for use and have a synergistic effect, so that the resistance of the conductive ink is reduced, the bending resistance of a conductive ink coating is remarkably improved, and the use requirements in the field of flexible electronics are met.

The present invention discloses a modified water-oxygen barrier film, a flexible perovskite battery and a preparation method and application thereof, and belongs to the technical field of flexible perovskite solar cells. The modified water-oxygen barrier film of the present invention comprises a base water-oxygen barrier material, an adhesive enhancement layer and a butyl rubber layer, wherein the adhesive enhancement layer is coated on the surface periphery of the base water-oxygen barrier material, and the base water-oxygen barrier material and the butyl rubber layer are bonded by the adhesive enhancement layer; the thickness of the adhesive enhancement layer is 1-10 μm, and the thickness of the butyl rubber layer is 50-1000 μm. The present invention introduces an adhesive enhancement layer between the butyl rubber and the base water-oxygen barrier material, which can achieve better interface bonding between the butyl rubber and the base water-oxygen barrier material during the lamination process, has large bonding force, simple construction and low cost, and can effectively improve the problem of low bonding force between the butyl rubber and the water-oxygen barrier film interface.

The present invention relates to an epoxy adhesive and a preparation method and application thereof. The raw materials for preparing the epoxy adhesive include a combination of a phenolic epoxy resin, an alicyclic epoxy resin, an active diluent, a curing agent and a curing accelerator; the curing accelerator includes an amine compound with a specific structure. The present invention uses a phenolic epoxy resin and an alicyclic epoxy resin as the main resin, and combines a curing accelerator with a specific structure, thereby reducing the amount of active diluent, greatly improving the high-temperature shear strength and interface bonding ability of the solid crystal adhesive, and solving the problem that the epoxy adhesive is difficult to balance between high thermal conductivity, excellent operating performance and high reliability.

The invention discloses a stretch-proof packaging film and processing equipment thereof, and aims at solving the problem that an existing packaging film is poor in tensile property. According to the technical scheme, the film comprises a film body, the film body comprises a stretch-proof surface layer and a stretch-proof inner layer which are arranged in parallel, a toughening layer is arranged between the stretch-proof surface layer and the stretch-proof inner layer, and the stretch-proof surface layer and the toughening layer are compounded through glue. The stretch-proof inner layer and the toughening layer are compounded by using glue, and non-compounded surfaces of the stretch-proof surface layer and the stretch-proof inner layer are coated with antibacterial coatings. Monodisperse silicon dioxide microspheres rich in hydroxyl are added during composite crosslinking of an active monomer and an anhydride-terminated carbon dioxide copolymer, reactive blending modification is performed, winding coating is formed, the compatibility is improved, the interface bonding force between the carbon dioxide copolymer and filled inorganic microspheres is enhanced, and the thermal conductivity of the carbon dioxide copolymer is improved. And the morphological structure is stabilized, and the tensile property is improved.

The invention discloses a method for preparing a super-transparent flexible PVB resin powder without Tyndall effect, and belongs to the technical field of PVB resin processing. The invention is used to solve the technical problem that two PVAs in the prior art easily lead to slight differences in the refractive index of the finished product, and when the PVB film is thicker, the Tyndall effect is likely to occur under strong light, affecting the light transmission performance of the product. A method for preparing a super-transparent flexible PVB resin powder without Tyndall effect comprises the following steps: adding polyvinyl alcohol and purified water to a three-necked flask and stirring, raising the temperature of the three-necked flask to 50-60°C, and stirring until the system is dissolved. The present invention selects a polyvinyl alcohol as a raw material, and after modifying it, it is compounded with a polyoxyalkylene with a long straight chain structure to prepare a PVB resin powder that is easy to process and has good sound insulation and noise reduction effects, which not only effectively reduces the yellow index, improves its high temperature resistance, but also avoids the generation of the Tyndall effect.

The invention relates to the technical field of lithium ion batteries, and provides a high-heat-resistance and high-adhesion lithium battery diaphragm as well as a preparation method and application thereof. The high-heat-resistance and high-adhesion lithium battery diaphragm comprises a base membrane and a coating arranged on at least one surface of the base membrane, and the coating is prepared from polyvinylidene fluoride-hexafluoropropylene copolymer, inorganic particles, a silane coupling agent, acrylate light-cured resin, a photoinitiator and an organic solvent. According to the technical scheme, the problem that the lithium battery diaphragm in the prior art cannot have high heat resistance and high interface adhesion at the same time is solved.

The present application relates to the technical field of high polymer material silicone rubber, and particularly relates to a kind of flame-retardant antistatic high-temperature resistant vulcanized pipe and a preparation method thereof.The present application effectively solves the poor compatibility and performance conflict problem often occurred when realizing high flame-retardant and antistatic function of traditional silicone rubber pipe material by constructing a unique "microscopic island structure".In the preparation process, vinyl MQ silicone resin as a key "interface bridging" component can be preferentially adsorbed on the interface of different polar rubbers and wrapped modified flame retardant to form a "core-shell" micro area, which not only prevents the interference of high-filled flame retardant on the conductive network, but also significantly enhances the interfacial adhesion between methyl silicone rubber and phenyl silicone rubber two phases;At the same time, the assistant crosslinking agent triallyl isocyanurate participates in grafting reaction during vulcanization process, and establishes a stable chemical bond bridge between different rubber phases, which fundamentally avoids the delamination phenomenon of the blending system.

The application discloses a kind of flame-retardant water-resistant polyether type polyurethane elastomer and preparation method thereof, and relates to the technical field of polyurethane elastomer.The application first prepares boroxin intermediate BOX, then reacts with dimethyl methylphosphonate to obtain reactive phosphorus-containing boroxin flame retardant DMPB, which is introduced into polyurethane elastomer as halogen-free flame retardant.The obtained material has significantly improved limiting oxygen index, reaches UL-94 V-0 level, and has outstanding smoke suppression and toxicity reduction effect;continuous dense carbon layer is formed during combustion, and the mechanical and adhesive properties are excellent, halogen-free, environmentally friendly, water-resistant and stable, suitable for new energy vehicles and electronic components potting and other fields with high requirements for flame retardance and water resistance.

The invention relates to the technical field of adhesives, in particular to a high-reliability underfill adhesive suitable for a large-size chip and a preparation method of the high-reliability underfill adhesive. The underfill adhesive is prepared from the following raw materials in parts by weight: 25 to 35 parts of bisphenol F type epoxy resin, 1 to 3 parts of bisphenol A type epoxy resin, 0.5 to 2 parts of silicon modified epoxy resin, 0.5 to 1.5 parts of black paste, 0.8 to 1.2 parts of coupling agent, 0.1 to 0.5 part of flow promoter, 50 to 55 parts of spherical filler, 10 to 15 parts of curing agent, 0.2 to 0.8 part of accelerant premix and / or 0.5 to 1 part of additive with controllable post-curing performance. According to the invention, the accelerator premix and the additive with controllable post-curing performance are synthesized autonomously, so that the glass transition temperature and the high-temperature modulus are increased moderately, the normal-temperature modulus is reduced moderately, and the same reliability fatigue degree as three substrates, namely a chip, a substrate and a Bump, is achieved, so that the reliability of a chip module is improved.

This invention relates to the field of battery technology, specifically to a battery. The battery includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer includes a three-dimensional network framework and positive active material located within the three-dimensional network framework. The three-dimensional network framework is formed by a conductive binder, which includes carbon nanotubes and an adhesive layer. Along the thickness direction of the positive active material layer, the positive active material layer includes a first surface away from the positive current collector, and the conductive binder is distributed on the surface of the first surface. The separator includes a carrier layer and a coating layer. The coating layer adjacent to the first surface of the positive electrode is a first coating layer. The proportion W of the projected area of ​​the first coating layer on the surface of the carrier layer in the surface area of ​​the carrier layer is 5%-65%. The battery of this invention has high interfacial adhesion between the separator and the positive electrode, which can maintain good adhesion during cycling, improving the cycle performance of the battery.

The present invention belongs to the technical field of refractory materials, and specifically relates to a coating material for anode copper casting and a preparation method thereof. The coating material includes the following components in parts by weight: 60-70 parts of magnesium chromium oxide, 25-35 parts of aluminum silicon powder, 1-3 parts of flame retardant modified bentonite, 0.1-0.3 parts of modified carboxymethyl cellulose, 3-6 parts of silane coupling agent ETP, and 0.05-0.1 parts of explosion-proof fiber; the preparation method of the flame retardant modified bentonite is: firstly modifying o-cresol epoxy resin with triphenyl phosphate to prepare flame retardant epoxy resin, then modifying silica sol with flame retardant epoxy resin to prepare organic modified silica sol, and finally modifying bentonite with organic modified silica sol to prepare flame retardant modified bentonite. The coating material prepared by the present invention has good flame retardancy, suspension and leveling properties, high bonding strength, good spreadability, can effectively reduce mold cracking, and improve the service life of the mold.

The invention relates to the technical field of thermal insulation materials, and particularly discloses a stress-impact-resistant thermal insulation material and a preparation method thereof.The thermal insulation material comprises nitrile rubber, a plasticizer, a reinforcing filler, an ablation-resistant filler, a fiber filler, a flame retardant, 4-12 parts of an active agent, a vulcanizing agent, a vulcanization accelerator and a tackifier; the tackifier is an organic silicon epoxy and polyether block copolymer. By introducing a strong-polarity high-flexibility polyether structure and a weak-polarity polysiloxane chain segment, self-aggregation can be carried out to generate microphase separation to form a sea-island structure, and the structure can reduce cohesion of a polymer body and is beneficial to creep deformation to adapt to stress caused by external impact; and huge impact force generated by rapid ignition pressure buildup of the solid engine is absorbed. The thermal insulation material has excellent mechanical property and ablation resistance, and especially can fully resist a large amount of external stress when being used as an artificial debonding layer, so that the working safety of a solid rocket engine is ensured.

The present application provides an epoxy resin composition, a preparation method and application thereof, and raw materials of the epoxy resin composition include an epoxy resin, a curing agent and a modified lignin epoxy resin. The modified lignin epoxy resin is used to replace part of the traditional epoxy resin to prepare the epoxy resin composition, which can enhance the compatibility between the lignin and the epoxy resin matrix, and the interfacial force between the lignin and the epoxy resin, utilize the chemical structure characteristics of the lignin itself, enhance the tensile strength of the epoxy resin composition, on the other hand, through enhancing the interfacial adhesion between the epoxy resin composition and the substrate (especially the copper substrate), such as hydrogen bond effect, etc., the adhesion performance of the epoxy resin composition is improved.

The invention relates to the technical field of thermal insulation materials, and particularly discloses a carbon fiber reinforced ethylene-propylene-diene monomer / polyphosphazene scouring-resistant thermal insulation material and a preparation method thereof. The thermal insulation material is prepared by taking carbon fibers as a framework, dipping ethylene-propylene-diene monomer / polyphosphazene rubber and vulcanizing, the ethylene-propylene-diene monomer / polyphosphazene rubber material is prepared from the following raw materials: ethylene-propylene-diene monomer, polyphosphazene, ablation-resistant resin, a flame retardant, a vulcanizing agent and a vulcanization accelerator. During preparation, the ethylene propylene diene monomer and the polyphosphazene are plastified firstly and then mixed with other raw materials to prepare green sheets, and the green sheets are dissolved with a solution and then subjected to vacuum impregnation, drying and vulcanization forming of the carbon fibers. According to the invention, the EPDM and polyphosphazene composite matrix is used as a dipping glue solution, so that the prepared C3D / EPDM / PZ scouring-resistant thermal insulation material has the advantages of low smoke, flame retardance, ablation resistance and the like compared with the traditional rubber-based thermal insulation material, and has good interface adhesion with EPDM (Ethylene-Propylene-Diene Monomer).