88 results about "Interfacial binding" patented technology

This invention provides a multifunctional gradient composite filament for 3D printing, its preparation method, and its applications, relating to the field of additive manufacturing materials technology. The filament's cross-section includes at least two structurally or functionally distinguishable regions, each region composed of a thermoplastic polymer with different chemical properties, or a thermoplastic polymer matrix with the same chemical properties but different functional modifications. These at least two regions are arranged in an ordered spatial pattern on the filament's cross-section using a multi-component co-extrusion technique, enabling pre-design and integration of properties. This invention overcomes the inherent limitations of traditional single-material filaments, achieving multifunctionality and performance designability of a single filament. It significantly improves the interlayer bonding performance of multi-component 3D printing and the comprehensive mechanical properties of the printed composite material. Furthermore, it allows for the production of components with both functional gradients and high mechanical properties in a single printhead operation, making it suitable for mass production.

The invention relates to a glass fiber impregnating compound, a low dielectric glass fiber and a cyanate ester resin-based wave-transparent composite material, and belongs to the technical field of glass fiber impregnating compounds, the glass fiber impregnating compound comprises the following components by mass: 35-50 parts of a low molecular weight epoxy emulsion, the molecular weight of epoxy resin in the low molecular weight epoxy emulsion being 400-600; 5-15 parts of a high molecular weight epoxy emulsion, wherein the molecular weight of epoxy resin in the high molecular weight epoxy emulsion is 5000-8000; 5-10 parts of a low molecular weight polypropylene emulsion, wherein the molecular weight of polypropylene in the low molecular weight polypropylene emulsion is 2000-3000; 20 to 25 parts of a lubricant; 15-20 parts of a silane coupling agent, wherein the silane coupling agent comprises a main silane coupling agent and an auxiliary silane coupling agent; and 0.1 to 0.3 part of graphene. The impregnating compound provided by the invention has good compatibility and interface bonding strength with a cyanate ester resin matrix.

The utility model belongs to the field of thermoplastic composite material, specifically discloses a paddle. The utility model's paddle uses short fiber reinforced resin as the outer skin, and the core material formed by the cooperation of the inside continuous fiber reinforced unidirectional tape forms the multi-scale fiber reinforced interface at the interface of the outer skin and the core material, improves the high and low temperature impact resistance of the paddle, reduces the risk of low temperature brittle fracture, enhances the interface bonding force of the paddle core material and the outer skin, reduces the influence of interlayer shrinkage stress, reduces the risk such as interface delamination, bulging and paddle deformation, and improves the mounting of the paddle.

This invention discloses a bimetallic composite self-lubricating bushing and its preparation method, comprising an outer layer and an inner layer. The outer layer is made of steel, and the inner layer is made of copper alloy. The inner wall of the outer layer is provided with multiple mating grooves, which are arranged in multiple layers along the axial direction of the outer layer. Adjacent mating grooves are spaced apart, and each layer includes multiple annularly spaced mating grooves. The inner layer is located within the mating grooves. Each mating groove includes a tip and a tail. The tips of adjacent mating grooves face opposite directions, and the distance between two adjacent mating grooves is the same as the groove width. The multi-layer mating groove structure of this invention, through centrifugal casting, achieves bimetallic interlocking and increases the metallurgical bonding area of ​​the staggered triangular straight mating groove structure with adjacent layers of tips facing opposite directions, significantly improving the interfacial bonding force of the bimetallic composite bushing.

The utility model relates to the technical field of composite material preparation, in particular to a thin-wall composite material plate structure with a hollow runner inside, which is formed by co-curing an upper composite material panel, a lower composite material panel and a runner layer clamped between the upper composite material panel and the lower composite material panel through resin, the problems that in a traditional technology, a flow channel is prone to being blocked, and interface bonding is weak are solved, and the heat pipe has the advantages of being good in structural integrity, excellent in sealing performance, light in weight and high in strength and is particularly suitable for heat management structural parts in the fields of aerospace, new energy automobiles, high-end equipment and the like.

The invention discloses a preparation method of an ultra-light ablation-resistant composite material with a gradient structure, and belongs to the technical field of composite material preparation. In order to solve the technical problem that a traditional material is difficult to consider low density, heat insulation property and ablation resistance at the same time, vermiculite nanosheets and water-soluble phenolic resin are compounded in a solution state, a three-dimensional porous matrix is constructed by adopting directional freeze drying, the surface of the matrix is coated with a ceramic precursor, and then high-temperature cracking is performed to form a compact ceramic layer; and gradient transition from the internal porous structure to the outer ceramic layer is realized. The ablation-resistant composite material with the gradient structure, which is low in density, excellent in heat insulation performance, enhanced in ablation resistance and high in interface bonding strength, can be obtained.

This application relates to biodegradable magnesium metal composite materials, their preparation methods, and medical devices. The preparation method of the biodegradable magnesium metal composite material includes the following steps: performing a first treatment on the surface of a magnesium metal matrix using an alkali agent to form a magnesium hydroxide passivation layer; performing a second treatment on the magnesium hydroxide passivation layer using phosphorylated amino acids to form a mineralization-inducing layer; and depositing a calcium-phosphorus coating on the surface of the mineralization-inducing layer to prepare the biodegradable magnesium metal composite material. The biodegradable magnesium metal composite material prepared by this method can meet the requirements of long-term corrosion resistance, strong interfacial bonding, and biocompatibility.

This invention relates to the field of friction materials technology, specifically a friction material with excellent formability and its preparation method. The raw materials for this friction material include allyl phenolic resin, bismaleimide, a photoinitiator, thiol-modified fillers, and additives; the fillers include reinforcing fillers, friction-increasing fillers, and friction-reducing fillers. This invention effectively improves the compatibility between the filler and resin, reduces the viscosity of the mixture, and significantly improves the flowability during hot pressing by grafting bismaleimide onto the surface of the thiol-modified reinforcing filler. This invention utilizes the bifunctional characteristics of bismaleimide to construct a three-dimensional interpenetrating network with the filler as nodes, achieving higher interfacial bonding strength than traditional coupling agent treatment while using less than 15wt% resin. In the interpenetrating network formed by this invention, the imide ring structure of bismaleimide endows the material with excellent thermal stability, preventing interface debonding at high temperatures, maintaining a stable coefficient of friction, and exhibiting excellent resistance to thermal degradation.

The invention provides a preparation method of a composite board with excellent interface bonding, which comprises the following steps: if the processing and using temperature of the composite board is less than or equal to 200 DEG C, polishing one side surface of a base material blank until the roughness is 0.02 T + 0.05 t + 0.5 CR <-5 >-0.02 T + 0.05 t + 0.5 CR, T is a preset heat treatment temperature unit of DEG C, t is a total heat treatment time unit of min, CR is a preset total compression ratio, and if multiple heat treatments are needed, T is a maximum value; if the processing and using temperature of the composite board is higher than 200 DEG C, the surface of one side of the base material blank is polished into a wave shape, the vertical distance between the wave crests and the wave troughs is 0.1 T-85-0.1 T-80, the unit is mm, the horizontal distance between the wave crests is 100-12.5 lnT-110-12.5 lnT, and the unit is cm. The surface of the base material blank is subjected to different treatments through different processing use temperatures, so that the bonding strength of the base material and the covering material is guaranteed.

The invention provides a polymer compatilizer and application thereof, and relates to the technical field of organic materials. Specifically, a molecular chain of the polymer compatilizer comprises a polyolefin chain segment, a reversible covalent bond group and an active functional group which are connected in sequence; wherein the reversible covalent bond group comprises at least one of a cycloaddition reaction system, a disulfide bond system, a borate bond system, an acylhydrazone bond system, an oxime bond system, a trithiocarbonate bond system and a tetrazole-olefin light click chemical system. According to the compatilizer structure, a dynamic covalent cross-linked network can be constructed at the interface of the composite material, and the interface is endowed with an intelligent response characteristic through fracture and recombination of reversible covalent bonds, so that the interface bonding strength of the composite material is far higher than that of a traditional system; the technical problems that in the material service process in a traditional system, due to permanent covalent bonding, an interface is prone to being damaged and cannot be reversibly repaired are effectively solved.

The invention discloses a composite porous basement membrane and a preparation method thereof. The composite porous basement membrane comprises a porous sulfonated resin basement membrane and a hydrogen bond donor layer at least partially filled in pores of the porous sulfonated resin basement membrane. The interface compatibility and the interface bonding force between the composite porous basement membrane and the functional resin material are excellent, the layering risk is reduced, and an application basis is provided for long-time operation.

An interface bonding failure test method, system, storage medium and program product, relate to the field of testing or analyzing materials by means of determining chemical or physical properties of materials, in the method, the interface bonding state between the pole piece coating and the current collector is evaluated by performing a single loading and unloading cycle. In the loading stage, a first resistance value is measured when the pressure reaches a preset target detection pressure, and then the pressure is continuously increased to a preset peak pressure (the pressure is greater than the target detection pressure but less than the yield strength of the current collector). In the unloading stage, a second resistance value is measured when the pressure decreases back to the preset target detection pressure. By comparing the difference between the two resistance values with a preset hysteresis threshold, the interface bonding state is determined: if the difference is greater than the threshold, it is determined that there is interface bonding failure. The present application is used to reduce the difficulty of identifying overpressure risk and defining the best roll pressure process window.

The invention discloses thermoplastic elastomer beads as well as a preparation method and application thereof, and relates to the technical field of foaming materials. The thermoplastic elastomer bead provided by the invention is prepared from the following preparation raw materials in parts by mass: 80 to 99 parts of a thermoplastic elastomer a with the hardness of Shore A 90 to Shore D 75, 5 to 20 parts of a thermoplastic elastomer b with the hardness of Shore A 70 to Shore A 90 and 0.01 to 1 part of a cross-linking agent. The thermoplastic elastomers with different hardness are matched to serve as preparation raw materials, in the subsequent process of preparing a foaming part through the beads, the elastomer b with the low hardness can have the higher migration capacity, can gradually migrate to the surfaces of the beads and can play a role similar to a binder through melting of the elastomer b, and therefore the foaming performance of the beads is improved. The interface bonding between the beads is enhanced, the mechanical strength of the obtained foaming product is improved, and the migration of the thermoplastic elastomer b can promote the permeation of the foaming agent in the foaming process, so that the foaming efficiency and the foaming ratio of the obtained product are improved.

The invention discloses a TC17 composite board with a mechanical interlocking interface and a preparation method of the TC17 composite board, and belongs to the technical field of composite material preparation. The problems that a current titanium alloy composite board of a sandwich structure is low in interface strength and poor in interface bonding capacity, so that the service strength and the ultimate high-temperature strength of the composite board are low, and the anti-fatigue performance is poor are solved. A Ti750S hollow alloy plate is placed in the middle of a TC17 plate, and the TC17 composite plate of a sandwich structure is obtained through hot press forming. In the hot pressing process, TC17 is filled into holes of Ti750S in a viscous flow mode and permeates with TC17 on the other side, a rivet or anchor rod structure is formed in the holes in the middle layer, a three-dimensional mechanical interlocking structure is formed with the Ti750S layer, an interlocking interface provides strong mechanical bonding force, interface stress is effectively transmitted and dispersed, metallurgical bonding is formed through diffusion bonding, and the mechanical bonding strength is improved. And the interface strength of the TC17 composite board is improved.

The invention relates to the technical field of stacked abrasive cloth with a chemical cross-linked network binding agent, discloses a device named as stacked abrasive cloth with a chemical cross-linked network binding agent, and aims to solve the problems that an existing abrasive cloth binding agent is unbalanced in hardness and toughness and insufficient in thermal stability under high temperature and heavy load. The device is characterized by structurally comprising a flexible base material layer, a primer bonding layer, a chemical crosslinking stacking abrasive material layer and a reinforced composite paint layer, and a binding agent of the stacked abrasive layer is a multi-dimensional chemical cross-linked network constructed by matrix resin, a cross-linked reinforcing component, a flexible modified component and a functional filler. By the adoption of the technical scheme, the heat resistance is improved through the high-density cross-linked network, impact energy is absorbed in cooperation with the flexible components, ordered self-sharpening and extremely high interface bonding strength of abrasive clusters are achieved, the service life of the abrasive cloth is remarkably prolonged, and the consistency of the machined surface is improved.

The application provides a method for evaluating interface bonding strength of plant fiber reinforced plastic, and belongs to the technical field of bio-based composite materials. In the application, the Dijkstra shortest path algorithm is used to calculate the path cost from the center position of a sample to each candidate emission point and select the candidate emission point with the minimum path cost as an optimized emission point. The optimal emission direction angle and optimal emission frequency are determined by performing fine search on the optimized emission point position according to the transmission signal propagation time and frequency attenuation value. Finally, the optimal parameters are used for ultrasonic transmission testing on all test points to establish an ultrasonic characteristic response matrix and input an interface quality evaluation model to output an interface bonding strength prediction value. The technical problem of insufficient detection accuracy caused by the difficulty in self-adaptive optimization of ultrasonic detection parameters during the evaluation of the interface bonding strength of plant fiber reinforced plastic is solved.

This invention provides a modified rubber-composite nylon elastomer material and its preparation method. The material comprises the following raw materials in parts by weight: 80-100 parts of hydrogenated nitrile butadiene rubber, 30-70 parts of nylon, 6-10 parts of maleic anhydride-grafted polybutadiene, 1-5 parts of peroxide vulcanizing agent, and 1-5 parts of crosslinking agent. The method comprises: S1, mixing hydrogenated nitrile butadiene rubber and maleic anhydride-grafted polybutadiene in a mixer according to the specified ratio to obtain a rubber premix; S2, adding the rubber premix and nylon to a twin-screw extruder for melt blending according to the specified ratio to obtain a blend; S3, adding the vulcanizing agent and crosslinking agent to the blend for dynamic vulcanization and granulation to obtain the modified rubber-composite nylon elastomer material. The modified rubber composite nylon elastomer material provided by this invention has high interfacial bonding strength, and the rubber phase particle size is refined to 0.5-2μm, which significantly improves impact toughness and fatigue resistance; the tensile strength reaches 35-50 MPa, the elongation at break is 200-350%, and the notched impact strength is 40-80 kJ / m.

This invention discloses an ultrasonic-mechanical coupled vibration rolling composite equipment and method for metal layered composite materials, belonging to the field of metal layered composite material preparation technology. The equipment includes a rolling mechanism, a mechanical vibration mechanism, and an ultrasonic vibration mechanism. The mechanical vibration mechanism is mounted on the side of the first work roll of the rolling mechanism via a crankshaft and connecting rod actuation, providing mechanical vibration to the first work roll to improve the interfacial misalignment rate and enhance the interfacial bonding strength of the metal layered composite material. The ultrasonic vibration mechanism is connected to the second work roll of the rolling mechanism, leveraging the volume effect of ultrasonic vibration to coordinate the deformation of the constituent metal materials. The method of this invention is simple in process, convenient to implement, has high production efficiency and low cost, and produces metal layered composite materials with high interfacial bonding strength, good geometric accuracy, low internal residual stress, and no anisotropy problems.

This invention belongs to the field of biomaterials and tissue engineering technology. It relates to a PRP-loaded dopamine-modified 3D nanofiber sponge and its preparation method. The PRP-loaded dopamine-modified 3D nanofiber sponge prepared by this invention utilizes a biomimetic design strategy, inspired by the adhesion mechanism of marine mussels, and employs PDA (polydopamine) surface modification technology to form a bioactive interface layer on the nanofiber surface. The active functional groups on the PDA surface bind with growth factors in PRP, forming a stable PDA-PRP composite functional layer. While maintaining the high porosity and suitable mechanical properties of the 3D nanofiber sponge, the biomimetic modification with polydopamine improves the loading efficiency of PRP and the interfacial bonding strength, thus extending the sustained-release period of growth factors.

The invention relates to the technical field of material science and engineering, in particular to TiC-WC composite particles with density matching and neutral buoyancy characteristics and a preparation method of the TiC-WC composite particles. The TiC-WC-Ni / Ni-Co composite particle comprises a composite particle body composed of TiC, WC and a Ni / Ni-Co adhesive, the overall bulk density is controlled to be 7.5-8.5 g / cm < 3 >, fine-grained and coarse-grained particles are applied separately through a dual-granularity application strategy module, and the interface bonding performance is improved by means of a metallurgical wettability enhancing module. The method has the beneficial effects that according to the technical scheme, the problem of uneven distribution of hard phases in a welding pool is solved by accurately regulating and controlling the density of the composite particles, uniform suspension of the particles is ensured, meanwhile, the erosive wear resistance and mechanical impact resistance of a welding layer are improved, and the method is suitable for flux-cored wire filling and surfacing pool putting scenes; and the method has excellent performance stability and process controllability.

The present application relates to the technical field of fused deposition manufacturing, and discloses a heterogeneous material manufacturing method with an interfacial staggered overlapping structure. By setting the staggered overlapping interfacial structure, in the process of additive manufacturing of heterogeneous materials, the stress concentration phenomenon of the traditional continuous interface is broken by using the staggered arrangement strategy of the interfacial line of adjacent layers, the interfacial stress is dispersed and transmitted along the three-dimensional direction, and the interfacial bonding strength is strengthened from the geometric structure. At the same time, the active penetration and remelting of material B to material A at the interface are realized through the material rewriting mechanism, the peeling failure risk of the interfacial line caused by insufficient molecular diffusion is avoided, the interfacial staggered amount and the rewriting amount are cooperatively controlled, the definite process constraint boundary is established, the defects of overmelting or weak penetration of materials are prevented, the adaptability of the internal material region and the interfacial transition of heterogeneous materials is ensured, the process fluctuation is reduced, the repeatability of the manufacturing process is improved, and the fatigue resistance and structural bearing capacity of the interfacial line of heterogeneous materials are improved.

The invention discloses a steel-concrete combined member with high-strength interface adhesion and a production method thereof, which are applied to the building field, and the steel-concrete combined member is characterized in that a groove structure is formed on the surface of pi-shaped section steel through hot rolling, concrete slurry is filled into a groove during pouring, and after hardening, the concrete slurry and the section steel form mechanical occlusion nested connection, so that relative slippage of the steel-concrete combined member and the section steel is effectively limited; the interface bonding performance and the cooperative stress capacity are remarkably improved, so that the overall bearing capacity of the component is enhanced; the integrated hot-rolled groove structure replaces traditional stud welding, the process is simple, production is facilitated, and the interface bonding effect is better; besides, the adopted composite groove design further increases the steel-concrete contact area on the premise that the process difficulty is not increased, a composite meshing system of linear ribs and point-shaped embedding blocks is formed, the interface bonding force and the mechanical meshing force are synergistically superposed, and the overall stress performance is further improved.

The invention relates to the technical field of device connection, in particular to a high-performance ultrasonic-assisted Kovar-W80Cu20 joint connection method and a precise device. Sn-Sb10 alloy brazing filler metal is adopted, and the Kovar alloy and the W80Cu20 alloy are connected through ultrasonic-assisted brazing. The obtained joint has the characteristics of low thermal expansion coefficient and high thermal conductivity, and the equivalent thermal conductivity at 25 DEG C and 125 DEG C reaches 50 + / -2W / m.K. The shear strength can still exceed 55MPa after being aged for 45 days at the temperature of 160 DEG C; after the Kovar-W80Cu20 composite material is subjected to thermal shock circulation at-40 DEG C to + 125 DEG C for 2000 cycles, the shear strength can still reach 57 MPa, excellent aging reliability and thermal shock reliability are shown, and excellent mechanical properties are attributed to interface bonding promotion by ultrasonic loading and the characteristic of low thermal expansion coefficient of the Kovar-W80Cu20 structure. According to the high-performance ultrasonic-assisted Kovar-W80Cu20 joint connection method and the precise device, the Kovar alloy and the low-expansion and high-heat-conduction W80Cu20 alloy are efficiently connected by constructing the'Kovar / SnSb10 / W80Cu20 'heterogeneous joint, an excellent heat dissipation solution is provided for the high-power precise device, and meanwhile the good CTE matching performance with a chip material is kept.

This invention relates to the field of shoe sole material technology, specifically to a high-elasticity, wear-resistant tennis shoe sole material and its preparation method, comprising the following steps: weighing raw materials according to the following weight parts: EVA 45-55 parts, SEBS elastomer 20-30 parts, natural rubber 10-15 parts, additive modifier 8-12 parts, filler 5-8 parts, crosslinking agent 1.5-2.0 parts, AC foaming agent 0.8-1.5 parts, lubricant 0.6-1.0 parts, antioxidant 0.5-0.8 parts, and silane coupling agent 2-5 parts. This invention uses EVA as the base material, combined with SEBS elastomer and natural rubber. The synergistic effect of these three components significantly improves the elasticity and toughness of the sole material, meeting the needs of landing cushioning and explosive power enhancement in tennis. The silane coupling agent KH560 can improve the compatibility between the raw material components, enhance interfacial bonding, prevent component delamination, and improve the overall performance stability of the material.

The invention provides a sizing method for carbon fibers with high interface bonding strength, which belongs to the technical field of carbon fibers and comprises the following steps: activating carbon fibers subjected to high-temperature carbonization; immersing the activated carbon fiber in the sizing liquid, and performing ultrasonic treatment to obtain the impregnated carbon fiber; wherein the sizing liquid is prepared from a sizing agent, and the sizing agent is prepared from diethanol amine modified novolac epoxy resin, a diepoxy terminated catechol-phenylboronic acid ester cross-linking agent, an amino-functionalized multi-walled carbon nanotube, amino-terminated polyether and water; and sequentially carrying out first high-temperature treatment and second high-temperature treatment on the impregnated carbon fiber to obtain the carbon fiber with high interface bonding strength. The sizing method provided by the invention effectively solves the problems of weak interface bonding force, easy debonding, brittle fracture and the like caused by chemical inertness of the surface of the carbon fiber, and obviously improves the interface shear strength, the interface stripping toughness and the overall cycle fatigue life of the carbon fiber composite material.

The invention discloses a nano metallized composite film and a preparation method thereof. The nano metallized composite film comprises a base film layer; a metal functional layer; the interface bonding layer is connected between the base film layer and the metal functional layer; the surface, facing the interface bonding layer, of the base film layer comprises a first polar functional group, the surface, facing the base film layer, of the interface bonding layer comprises a second polar functional group, and the first polar functional group and the second polar functional group are chemically bonded to form connection of the base film layer and the interface bonding layer. The interface bonding layer is arranged between the base film layer and the metal functional layer, the interface bonding layer can be in chemical bonding connection with the base film layer and the metal functional layer, an interlayer chemical bonding system of the base film layer, the interface bonding layer and the metal functional layer is constructed, and by means of the dual chemical bonding mode, the interface bonding layer and the metal functional layer can be bonded together. Interlayer tight connection can be realized from an atomic level, so that the interface bonding strength is improved.

This invention discloses a waterproof and breathable composite fabric and its preparation method, belonging to the field of textile technology. It solves the problem that waterproof and breathable composite fabrics using polyester-based polyurethane adhesives undergo hydrolytic aging during long-term high-temperature, high-humidity, and high-pressure storage. Initial symptoms are often subtle and easily misdiagnosed during testing, leading to sudden delamination and tearing failure due to a sharp drop in interfacial strength upon use, resulting in irreversible damage and rendering the fabric unusable. This invention addresses these issues by eliminating the root cause of ester bond hydrolysis from a materials chemistry perspective, blocking the self-catalytic acceleration loop in the degradation pathway, preventing structural weakening caused by long-term compression in stress distribution, ensuring the fabric can withstand mechanical loads after aging through interfacial bonding, and providing early visual warning intervention for failure identification. This transforms the hydrolytic reaction from a gradual, unpredictable failure into a slow, visible, predictable, and controllable aging process throughout its entire lifecycle, thereby avoiding the risk of sudden and irreparable fabric collapse at critical moments.

The application relates to the technical field of friction materials, in particular to a friction material with excellent formability and a preparation method thereof. Raw materials of the friction material include allyl phenolic resin, bismaleimide, a photoinitiator, thiol-modified fillers and an auxiliary agent; the fillers include reinforcing fillers, friction-increasing fillers and friction-reducing fillers. The application grafts bismaleimide on the surface of thiol-modified reinforcing fillers, effectively improves the compatibility of the fillers and the resin, reduces the viscosity of the mixture, and significantly improves the fluidity during hot pressing. The application constructs a three-dimensional interfacial interpenetrating network with the fillers as nodes by using the bifunctional group characteristics of bismaleimide, so that the resin consumption is less than 15 wt%, and the interfacial bonding strength is higher than that of a traditional coupling agent treatment. In the interfacial interpenetrating network formed by the application, the imide ring structure of bismaleimide endows the material with excellent thermal stability, the interface does not debond at high temperatures, the friction coefficient is stable, and the anti-thermal decay capacity is excellent.

This application provides a composite material, a manufacturing method, and an electronic device. The composite material includes a matrix layer, a hardened layer, and a transition layer. The transition layer is disposed between the matrix layer and the hardened layer. The melting point of the transition layer material is lower than that of the matrix layer material and the hardened layer material. The composite material provided by this application, by introducing a transition layer, can improve the elemental distribution at the interface between the matrix layer and the hardened layer, which is beneficial for improving the interfacial bonding strength. It also broadens the selection space for the matrix layer and hardened layer materials. The transition layer enables reliable bonding between two materials with significant differences, improving the interfacial bonding strength to above 400 MPa.

Disclosed herein are high-throughput synthetic methods for deliberately and prospectively discovering molecular glues that can be used to form complex protein-ligand surfaces that facilitate interfacial binding to other proteins on a dispersed surface. Specifically, the present application discloses a high-throughput method that uses sulfur(VI) fluoride exchange (SuFEx) transformation and N-hydroxysuccinimide (NHS)-ester derivatized amide coupling to prospectively repurpose known ligands of a protein of interest as degraders and compounds capable of inducing proximity to other proteins. Disclosed herein are methods of developing known ligands of a target protein into degraders of the target protein. Also disclosed are methods of developing a novel small molecule chromatin-competitive inhibitor of the 11-19 Leukemia (ENL) YEATS domain into an effective degrader of ENL.