14results about How to "Fix interface issues" patented technology

The invention relates to the technical field of TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation, and discloses a TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation method which comprises the following steps: preparing a nickel-based alloy raw material, putting the nickel-based alloy raw material into a planetary ball mill to be subjected to ball milling treatment after being combined, and preparing a nickel-based alloy coating; the mixed powder is bonded on a steel base material base plate to form a TRT blade, the TRT blade is put into a drying oven to be dried, high-energy-density laser beams of laser cladding equipment are used for irradiating the powder coated on the surface of the TRT blade to enable the powder to be fused, then an anti-corrosion layer is formed, a metal ceramic gradient material is melted or softened, the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer, and the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer. Then the boron nitride coating and the anticorrosive layer are fused together through laser cladding equipment, a transition layer is formed, the boron nitride coating is prepared, the surface of the transition layer on the TRT blade is evenly coated with the boron nitride coating, the surface of the transition layer on the TRT blade is fused together through the laser cladding equipment, and a wear-resistant layer is formed; through the preparation method, the service life of the TRT blade is prolonged.

The invention discloses a high-entropy alloy reinforced aluminum-based composite material and a preparation method and application thereof, and belongs to the technical field of metal-based composite material preparation. The composite material comprises an aluminum matrix, high-entropy alloy particles dispersed in the aluminum matrix, and a diffusion interface layer located between the aluminum matrix and the high-entropy alloy particles. The composite material can be prepared by taking a high-entropy alloy and aluminum as raw materials, carrying out ball milling and powder mixing, then mixing in an inert gas environment, carrying out cold press molding, and finally adopting a rapid hot press sintering technology. According to the high-entropy alloy reinforced aluminum-based composite material prepared through the method, high-entropy alloy particles can be evenly dispersed in a matrix, the interface problem of a reinforced phase and the aluminum matrix can be effectively solved by precisely regulating and controlling the interface reaction degree between the high-entropy alloy and the aluminum matrix, and the mechanical property and the friction resistance of the composite material are remarkably improved; good application prospects are realized in the friction field.

The invention belongs to the technical field of viscoelastic coatings, and particularly relates to a viscoelastic functional composite material, a viscoelastic coating, a viscoelastic diaphragm, a preparation method of the viscoelastic diaphragm and a lithium ion battery. The viscoelastic functional composite material provided by the invention comprises a chemically modified and coated viscoelastic material and a water-based adhesive, the shell layer of the chemically modified and coated viscoelastic material is a pressure-sensitive material, and the core of the chemically modified and coated viscoelastic material is a macromolecular viscoelastic material; the dry weight of the water-based adhesive accounts for 1-10% of the dry weight of the chemically modified and coated viscous-elastic material by mass. The viscoelastic functional composite material provided by the invention can effectively improve the viscoelasticity of the diaphragm in the Z direction, improve the overall compression resilience and bonding characteristic of the diaphragm, and can bond the diaphragm and a pole piece into a whole, thereby improving or solving the problem of expansion and shrinkage of a silicon-based negative electrode lithium battery in work, and improving the service life of the lithium battery. The stability of the shape and size of the battery is maintained, the interface is improved, and the high-energy-density silicon-based negative electrode is assisted to be applied to power and energy storage batteries on a large scale.

The invention relates to the field of epoxy molding compounds, and discloses a preparation method and application of a modified carbon nanotube and a preparation method and application of an epoxy molding compound. The preparation method comprises the following steps: (1) mixing a mixed acid solution with a carbon nanotube for reaction to obtain an acidified carbon nanotube; (2) mixing a mixed solution of thionyl chloride and N, N-dimethylformamide with the acidified carbon nano tube for reaction to obtain an acylating chlorination carbon nano tube; (3) under the protection of an inert gas, mixing the acylating chlorination carbon nano tube with ethanediamine for reaction to obtain an amino modified carbon nano tube; and (4) carrying out ultrasonic treatment on the amino modified carbon nanotube and a modifier containing an epoxy group. The epoxy molding compound prepared from the modified carbon nanotube has excellent strength and toughness, can effectively solve the problems of insufficient strength and toughness and the like of the existing epoxy molding compound, and can be well used in the field of electronic packaging.

The invention relates to the technical field of lithium ion battery material preparation, and discloses a core-shell structure composite electrolyte and a preparation method and application thereof. The method comprises the following steps: (1) carrying out ultrasonic treatment on a mixed solution containing a polyphenol solution and an organic amine solution and a titanium-aluminum-lithium phosphate electrolyte to obtain a modified titanium-aluminum-lithium phosphate electrolyte; performing emulsion liquefaction reaction on an acrylate monomer, a first emulsifier and a first initiator to obtain a pre-emulsion; and (2) in the presence of a second emulsifier, a second initiator and a buffer agent, dropwise adding the pre-emulsion to the modified lithium titanium aluminum phosphate electrolyte under a temperature programming condition, and carrying out a polymerization reaction to obtain the core-shell structure composite electrolyte. The core-shell structure composite electrolyte prepared by the preparation method of the core-shell structure composite electrolyte provided by the invention can synergistically solve the interface problem of an LATP solid electrolyte and the problem of low liquid absorption rate of a polymer electrolyte, and the cell performance is obviously improved.

The invention relates to a method for improving the mechanical property of epoxy resin based on metamaterial skeleton support, the mechanical property of the epoxy resin is improved by designing a honeycomb metamaterial skeleton, and the specific steps are as follows: S1, designing a skeleton structure: selecting a honeycomb shape of the honeycomb metamaterial skeleton, and regulating and controlling the geometric dimension and wall thickness parameters of the honeycomb shape; and S2, preparing metamaterial skeleton composite resin: printing and curing dual-curing epoxy resin by adopting a photocuring 3D printing technology to obtain a honeycomb metamaterial skeleton as a support, pouring thermocuring epoxy resin into gaps of the honeycomb metamaterial skeleton, and performing vacuum drying after curing to obtain the metamaterial skeleton composite resin. A photo-curing 3D printing metamaterial framework is adopted as a support, thermosetting epoxy resin is poured in gaps of the framework, and the metamaterial framework realizes directional optimization of a stress transfer path of the material by accurately regulating and controlling unit cell shapes, geometric dimensions, wall thickness parameters and the like, so that the mechanical property of the epoxy composite material is improved.

This invention discloses a binder, its preparation method, and its application. The binder comprises the following raw materials: a compound containing soft segments, a compound containing hard segments, and a chain extender. The compound containing soft segments includes polyether polyols and polyester polyols, wherein the polyether polyols are end-capped with amino or hydroxyl groups, and the polyester polyols are end-capped with amino or hydroxyl groups. The compound containing hard segments is a diisocyanate, and the chain extender is a chain extender containing phenolic groups. This binder helps solve the interface problem of the positive electrode during battery operation and is expected to improve the cycle life and stability of the battery.

The invention discloses a titanium-aluminum intermetallic compound reinforced copper-based composite material and a preparation method and application thereof. The composite material comprises a copper matrix, titanium-aluminum intermetallic compound particles dispersed in the copper matrix, and a copper-titanium-aluminum alloy interface layer located between the copper matrix and the titanium-aluminum intermetallic compound particles. The composite material can be prepared by taking a titanium-aluminum intermetallic compound and copper as raw materials, ball-milling and mixing powder, then mixing in an inert gas environment, carrying out cold press molding, and finally adopting a rapid hot press sintering technology. According to the titanium-aluminum intermetallic compound reinforced copper-based composite material prepared by the method, the titanium-aluminum intermetallic compound can be uniformly dispersed in a matrix, and the interface problem of a reinforced phase and the copper matrix can be effectively solved by accurately regulating and controlling the interface reaction degree between the titanium-aluminum intermetallic compound and the copper matrix; the mechanical property and the friction resistance of the composite material are obviously improved, and the composite material has a good application prospect in the friction field.

The invention discloses a hot pressing method of an ion battery. The method comprises the following steps: preheating treatment; performing hot pressing treatment; in the hot-pressing treatment, the hot-pressing pressure P2, the hot-pressing temperature T2 and the hot-pressing time t2 are controlled to meet the condition that P2 * T2 * t2 * 10 <-3 > is more than 0.07 and less than 1. The battery hot-pressing method can obviously improve the discharge rate capability of the battery, so that the electrical property of the battery reaches a good state.

The invention discloses a method and system for monitoring chloride ions in concrete, belonging to the technical field of concrete monitoring. The chloride ion monitoring system performs multi-point real-time monitoring on the chloride ion concentration inside the concrete through the linear relationship between the fluorescence wavelength change value and the chloride ion concentration. The chloride ion monitoring system comprises an excitation light source, a spectrometer, a filter, a fluorescent probe, and an optical splitter; the fluorescent probe is obtained by encapsulating cesium lead bromide with a porous polymer obtained by reacting octaallyl bromide-POSS with a diamine compound to obtain fluorescent nanoparticles, and click chemistry is performed under ultraviolet light reaction through double bonds in the outer layer of the fluorescent nanoparticles and double bonds on the surface after optical fiber cone modification and thiol, so as to obtain the fluorescent probe through photoplating.

The invention discloses a temperature-responsive high-safety lithium ion battery and a preparation method thereof, and relates to the technical field of lithium ion batteries. The preparation method sequentially comprises the following steps: (1) preparing a soft package laminated dry cell comprising a positive electrode, a negative electrode and a diaphragm, then injecting a precursor solution I, standing, carrying out primary formation, and carrying out primary exhaust; and (2) injecting the precursor solution II, standing, heating, carrying out polymerization reaction, carrying out secondary formation, aging, carrying out secondary exhaust, packaging, and carrying out capacity grading, so as to obtain the high-safety lithium ion battery with temperature response. The temperature-responsive composite solid electrolyte is formed in the battery in an in-situ polymerization manner, has a temperature-responsive characteristic, can maintain a stable state at normal temperature and low temperature, shrinks after the temperature rises to 80 DEG C, cuts off the relation between positive and negative electrode materials and the electrolyte, disconnects a lithium ion transmission channel, and improves the lithium ion battery performance. And further occurrence of short-circuit exothermic reaction is prevented.

The invention provides a sandwich-structure polymer-based solid electrolyte and a preparation method and application thereof. The sandwich-structure polymer-based solid electrolyte comprises a first solid electrolyte layer, a second solid electrolyte layer and a third solid electrolyte layer located between the first solid electrolyte layer and the second solid electrolyte layer, the content of the inorganic filler in the third solid electrolyte layer is higher than the content of the inorganic filler in the first solid electrolyte layer; the content of the inorganic filler in the third solid electrolyte layer is higher than the content of the inorganic filler in the second solid electrolyte layer; the inorganic filler in the third solid electrolyte layer comprises a first inorganic filler and a second inorganic filler, and the particle size of the first inorganic filler is smaller than that of the second inorganic filler. According to the preparation method, the mechanical property is favorably improved, the lithium dendrite problem is effectively improved, and the cycle performance and the interface problem are favorably improved.

The invention relates to the technical field of thin film materials, and provides a patterned high-reflection layer with good adhesion, a preparation method and an application thereof, wherein the high-reflection layer comprises an n(Si / W) layer, a gradient W-Cr alloy layer, a Cr layer, a silicon dioxide layer and a patterned reflective layer which are sequentially located on a surface-modified glass substrate from bottom to top; the n(Si / W) layer is composed of n periods of alternate deposition of Si layers and W layers, wherein the alternating period n is 30-50; the W content of the gradient W-Cr alloy layer gradually decreases and the Cr content gradually increases in a direction away from the n(Si / W) layer; the high-reflection layer of the invention realizes the combination of high reflectivity and good adhesion, solves the problems of easy peeling and poor stability of traditional high-reflection layers, and has a wide range of application value in the fields of photolithography masks, optical systems and semiconductor manufacturing, and provides a new technical path for the development of high-performance optical components.

The invention relates to the technical field of heat-conducting materials, and particularly discloses single-component curable 18W heat-conducting gel and a preparation method thereof. The single-component curable 18W heat-conducting gel is prepared from the following raw materials in parts by weight: 93 to 97 parts of vinyl silicone oil, 3 to 7 parts of hydrogen-containing silicone oil, 3950 to 4050 parts of hydroxyl silicone oil modified aluminum nitride and 0.1 to 0.3 part of a catalyst. The preparation method of the single-component curable 18W heat-conducting gel comprises the following steps: kneading vinyl silicone oil, hydrogen-containing silicone oil, hydroxyl silicone oil modified aluminum nitride and other raw materials at 90 DEG C for 30 minutes, and then adding a catalyst to obtain the heat-conducting gel. The gel extrusion rate is high, and glue dispensing is facilitated.