Fe-based amorphous alloy coatings have emerged as a key area of research in the field of surface engineering due to its high strength， hardness， and exceptional wear and corrosion resistance. This paper provides a comprehensive review of the preparation， performance， and application status of Fe-based amorphous alloy coatings. It also summarizes the fundamental principles of amorphous alloy material design and typical Fe-based amorphous alloy coatings material systems. The focus is on three coating preparation technologies： thermal spraying， cold spraying， and laser cladding. Additionally， it compiles the research progress made in understanding the tribological properties and corrosion resistance of Fe-based amorphous alloy coatings. Furthermore， it briefly outlines the applications of these coatings in military， medical， industrial fields etc. Finally， it is pointed out that in-depth study of amorphous formation， the establishment of specialized material systems while matching the working environment， and the adoption of post-processing or more efficient preparation methods are the development trends for future research work in this field.

High-entropy metallic glasses， combining structural disorder of traditional amorphous alloys with the chemical disorder of high-entropy alloys， exhibit excellent thermal stability， magnetic properties， corrosion resistance， and biocompatibility， positioning them as a focal point of recent research. The concept and origin of high-entropy metallic glasses are firstly introduced， followed by a summary of their composition system， preparation methods， and various properties. The reasons for the formation of amorphous structure in high-entropy metallic glasses are analysed from the perspectives of material system and preparation methods. The mechanisms having the good mechanical properties， thermal stability， and corrosion resistance of high-entropy metallic glasses are also explained. Finally， high-throughput material design using material calculations is looked forward to， with an emphasis on the exploration of composite properties， coatings， and other new preparation methods. It is also pointed out that solving fundamental theoretical problems is an important prerequisite for promoting the development of these materials.

Adding appropriate amounts of Al and Cu atoms to high-entropy alloys （HEAs） can significantly improve mechanical properties of the alloys， but there are few research reports on the corrosion resistance of Al and Cu atoms in HEAs. To reveal the influence of Al and Cu atoms on the corrosion behavior of HEAs， this study focuses on FeCoNi based medium entropy alloys with excellent mechanical properties. FCC single-phase Fe₂₅Co₂₅Ni₂₅Al₁₀Cu₁₅（Al10Cu15） alloy and BCC+FCC dual-phase Fe₂₅Co₂₅Ni₂₅Al₁₅Cu₁₀（Al15Cu10） and Fe₂₅Co₂₅Ni₂₅Al₂₀Cu₅（Al20Cu5） alloys are designed using empirical formulas for high-entropy alloy composition design. XRD analysis shows that the amount of FCC phase decreases and the amount of BCC increases with the increase of Al content， which is consistent with the theoretical calculation. SEM microstructure and EDS analysis show that increasing the amount of Al added and decreasing the amount of Cu added result in a transformation of the grain morphology from dendritic （Al10Cu15， Al15Cu10） to equiaxed （Al20Cu5）， and the composition of the interdendritic also changes significantly. The Al10Cu15 interdendritic microstructure is a Cu-rich FCC phase， the Al15Cu10 interdendritic microstructure is an Al-， Ni- and Cu-rich BCC phase， and the Al20Cu5 grain boundaries microstructure is a Fe- and Co-rich FCC phase. The potentiodynamic polarization（PDP） experiments show that alloys with high Al content have a dual-phase structure and are prone to galvanic corrosion during long-term immersion. The integrity of the passivation film is easily damaged， resulting in poor corrosion resistance of the alloy. The electrochemical impedance spectroscopy （EIS） tests show that the reaction resistance of alloys with higher Al additions decreases significantly with the prolongation of immersion time， which is consistent with the results of PDP analysis. Static immersion experiments at room temperature show that compared with Al10Cu15 alloy， Al15Cu10 and Al20Cu5 alloys are more susceptible to galvanic corrosion under prolonged immersion. It can be concluded that the addition of an excessive amount of Al atoms induced by the second phase significantly deteriorates the corrosion resistance of the material. Ensuring the homogeneity of alloy structure composition is an effective means to improve the corrosion resistance of materials.

To explore the influence of acid salt spray corrosion on the abradability behavior of Al-BN coatings， the microstructure， surface hardness， bonding strength， and abradability of Al-BN coatings prepared by atmospheric plasma spraying before and after acid salt spray corrosion for 192 h are investigated.The results show that after acidic salt spray corrosion for 192 h， the surface of the Al-BN coatings forms a corrosion dense layer composed of Al， Al₂O₃， NaCl， and BN with the thickness of about 300-350 μm. The variance of average hardness and average bonding strength of the corrosion-dense layer increases compared to the as-sprayed coating. During the scraping process， the weak bonding areas of the corrosion-dense layer are prone to scraping off and adhere to the friction surface of the dual blade， which causes the incursion depth ratio（IDR）values of the Al-BN coatings to change from （11.43±0.46）% before acid salt spray corrosion to （-12.02±0.38）% after acid salt spray corrosion， resulting in the abradability scraping mechanism of the Al-BN coatings changing from the mixed form of plastic deformation and adhesive wear to the mixed mechanism of plastic deformation， adhesive wear， and scraping off adhesion， the friction coefficient increasing from 0.34±0.02 before corrosion to 0.55±0.03. Therefore， the acid salt spray corrosion has a negative impact on the abradability of Al-BN coatings.

Continuous fiber-reinforced resin matrix composites are widely used in aerospace， automotive and marine industries due to their low density and excellent mechanical properties. However， traditional manufacturing processes are expensive and unable to form complex parts due to mold limitations. Additive manufacturing has the advantages of high freedom of design， rapidity， and flexibility，and is considered an important directions for the future production of continuous fiber reinforced composites. At present， the additive manufacturing technology of continuous fiber reinforced composite is still in its infancy. This paper systematically reviews the research status of continuous fiber reinforced resin matrix composite， summarizes the research progress of printing equipment， process and materials， and provides directions for the construction of printing platform and engineering application of continuous fiber reinforced resin matrix composite. The influence of printing process parameters， such as temperature， speed， and layer thickness on printing quality is analyzed， providing a reference for the intelligent additive manufacturing of continuous fiber reinforced composite materials. Meanwhile， the development of the two-dimensional and three-dimensional structural design for continuous fibers for lightweight manufacturing， such as fiber path laying and structural topology optimization is discussed. The research trends of equipment， materials， printing process， and structural design for additive manufacturing of continuous fiber-reinforced composites are summarized and outlooked.

WC-Co cemented carbides are widely used in various industrial fields because of their high hardness， strength， wear resistance， and other properties. Compared with conventional cemented carbides， the comprehensive properties of ultrafine/nano cemented carbides are greatly improved. The key to preparing ultrafine/nano-cemented carbides is inhibiting the growth of WC grains in the sintering process. In this study， the key factors inhibiting WC grain growth and the research status worldwide are discussed from two aspects of sintering methods and grain growth inhibitors for preparing cemented carbides. The advantages and disadvantages of the conventional sintering method and rapid sintering method are introduced， and the grain size and properties of cemented carbide prepared by different sintering methods are compared. The inhibition and reinforcement of other toughening fillers， the mechanism of grain inhibitors， and the advantages of composite grain inhibitors are introduced. Finally， the rapid sintering method and the composite grain inhibitors for preparing ultrafine/nano cemented carbides are proposed. The rapid sintering method can be combined with computer simulation to promote its wide application， and the types and adding methods of composite grain inhibitors require furthur exploration.

Rubidium （Rb）， a rare alkali metal with distinctive physicochemical properties， has been widely used in various fields， including magnetic fluid power generation， rubidium atomic clocks， special glass， and medicine. With the research progress of rubidium and rubidium-containing materials both domestically and internationally， the scope of their applications continues to broaden and deepen. The latest research progress on the application of rubidium and rubidium-containting materials in the fields of catalysis， photovoltaic， luminescent， energy-saving are reviewed in this paper， with a focus on strategies to enhance the performance of these materials， such as ion doping and the fabrication of composite materials. It is noted that while rubidium-containing materials exhibit significant potential across multiple application domains， many of these applications are still in the research phase. Future research should focus on improving material performance， product stability， and service life， as well as the reduction of production costs.

Emerging energy storage technologies must meet the requirements of low cost， reasonable safety， rich natural resources and high energy density. The rechargeable magnesium sulfur （Mg-S） battery has the advantages of high energy density， high safety， low cost，and so on. However， its performance is limited by self-discharge， rapid capacity loss， magnesium anode passivation，and low sulfur utilization. The recent advances in Mg-S battery research， focusing on the advances in non-nucleophilic electrolytes， anodes，and cathodes， summarizing electrolytes that can facilitate reversible deposition and dissolution of magnesium ions，and maintaining compatibility with sulfur cathodes and other battery components are reviewed in this paper. In addition， the current challenges of magnesium-sulfur batteries are discussed in the context of research trends， such as the dissolution and diffusion of sulfides and the slow reaction kinetics of Mg-S batteries， as well as recommendations for the future， such as doping MOFs with different elements and exploring the reaction mechanism of the batteries.

To meet the requirements of green， efficient， and low-carbon development， the next generation of 700 ℃ level advanced ultra-supercritical （A-USC） coal-fired power plants with increased steam temperature and pressure has received great attention worldwide. However， the increased steam parameters and harsh service environment corresponding to the A-USC boiler seriously threaten the safe operation of heat-exchanging components. The traditional ferritic/martensitic heat-resistant steels and austenitic stainless steels cannot survive due to their inadequate creep strength and corrosion resistance at temperatures above 700 ℃， and Ni-base alloys are required. Based on the coal ash/flue gas environment related to A-USC boiler adopting oxy-fuel combustion， the research progress in high-temperature corrosion of Ni-base alloys exposed to flue gas and coal ash was summarized， especially focusing on the effect of corrosive CO₂， H₂O（g）， SO₂ gases and sulfate salts on the thermal growth of CrO₃ protective film on Ni-base alloys. Finally， the effect of oxide particulates in coal ash， Cl-containing gases， and molten KCl salts resulting from biomass combustion on the high-temperature corrosion behavior of Ni-base alloys is the key direction for future research.

The microstructure control and corrosion resistance of aluminum alloys fabricated by wire and arc additive manufacturing（WAAM） are important issues that must be studied in engineering applications. The 5356 deposited part is produced by a CMT （cold metal transfer） system. The microstructure and hardness are characterized by metallurgical microscope， X-ray diffractometer （XRD）， scanning electron microscope （SEM） and micro-hardness tester， and the corrosion resistance behavior is studied by using electrochemical workstation， slow strain rate stress corrosion testing machine. The results show that the microstructure of 5356 WAAM aluminum alloy is composed of α-Al matrix and β（Al₃Mg₂） phase. The grains in the deposition layer are columnar crystals with an aspect ratio of ≤2， and the β（Al₃Mg₂） phase exists mainly as finely dispersed particles， while the grains in the interface layer are recrystallized equiaxed grains with smaller size， and the β（Al₃Mg₂） phase is predominantly distributed in large discontinuous blocks along the grain boundaries， with fewer fine granular β（Al₃Mg₂） phase within the grains， leading to a reduction in the matrix strengthening effect. The self-corrosion current density of the deposited layer is 23% of that of the interface layer， which may be caused by the content and morphology of β（Al₃Mg₂） phase. The stress corrosion sensitivity index at a slow strain rate of 5356 WAAM aluminum alloy is 0.57， and samples experience fracture and failure at the interface layer in both silicone oil and 3.5%NaCl solution medium. This is attributed to the lower strength at the interface layer matrix and shearing effect played by large intergranular β（Al₃Mg₂） phase in silicone oil inert medium， while the β（Al₃Mg₂） phase dissolves preferentially in the 3.5%NaCl aqueous solution， and intergranular corrosion propagation is accelerated under tensile stress.

Based on the response surface design， the optimal process parameters for single-side friction stir welding（FSW） of 2195 Al-Li alloy sheets are studied. It is found that the higher the rotation speed and the lower the welding speed， the higher the tensile strength of the welded joint. The results show that in the single-side FSW， when the pin length is 2/3 length of the thickness of the plate， the root of the weld appears unwelded defects， the fracture form of the welded joint is between brittle and plastic fracture， and the tensile strength of the joint is poor. Based on the optimum process parameters of single-sided welding， double-sided FSW can overcome the unwelded defects at the root of single-sided welding. Under different tool pressures， when the stirring head speed is 1600 r/min， the feed speed is 150 mm/min， and the pressure is 0.1 mm， the double-sided welding can improve the tensile strength of the welded joint by about 10% and the elongation of the welded joint by 10%. In two-sided FSW， the material flow on the forward side is obvious， and the fracture mode of the welded joint is a plastic fracture. In double-sided welding， the plate is subjected to secondary stirring and heating， resulting in increased softening of the material in the welding area.The microhardness of the double-sided welded joint is further reduced than that of the single-sided welding.

The joining of aluminum/copper dissimilar metals is successfully achieved by ultrasonic-assisted nano-enhanced plasma arc fusion brazing， and a well-formed aluminum/copper lap joint is obtained. The effects of ultrasonic waves and SiO₂ nanoparticles on the macroscopic and microscopic morphology， organizational structure， mechanical properties and conductive properties of lap joints are analyzed and studied by SEM， EDS， XRD， tensile test and conductivity test. The results show that the lap joint is obtained under the coupling action of ultrasonic waves and SiO₂ nanoparticles， and the spreading and wetting effect of liquid aluminum on the copper surface is better， the front side of the weld is well formed， and the joint is mainly composed of intermetallic compound layer region and Al-Cu eutectic region. The thickness of the intermetallic compound layer is reduced obviously，and the mechanical properties of the joint is significantly improved. The relative conductivity of the aluminum/copper joint using SiO₂ nanoparticles and ultrasonic waves is 153.527%IACS， exhibiting improved mechanical properties and electrical conductivity.

To study the static recrystallization behavior of laser additive manufacturing superalloys and their effect on mechanical properties， the solid-solution strengthened nickel-based superalloy GH3536 was investigated.The selective laser melting（SLM）method was used to prepare test blocks and bars， which were subjected to solution treatment at 1175 ℃ for different time. The static recrystallization behavior during heat treatment was investigated by EBSD analysis to explore its influence on the tensile properties. The results show that the as-built state organization is dominated by columnar grain growing along the build direction with 〈001〉 fiber texture. The recrystallization fraction after heating at 1175 ℃ for 1 h is 61.8%. Twinning is the main formation of recrystallization nucleation， and the degree of recrystallization gradually increases with the extension of the heating time. The recrystallization kinetic curve was obtained by fitting the Avirami equation， which matched the experimental results well. Static recrystallization significantly suppresses the anisotropy of the mechanical properties. The change magnitude of mechanical properties is small after the heating times more than 1 h.

AlCoCrFeNi_2.1 eutectic high entropy alloy has excellent mechanical properties and promising applications in fields such as hydrogen storage and transportation. The surface of the alloy is hydrogenated by electrochemical hydrogenation， and tensile tests are carried out on H-charged and H-free specimens to compare and analyze the fracture morphology characteristics， and the effect of hydrogen-induced precipitated phase evolution on the mechanical properties of the alloy is studied. The results show that compared with the samples without hydrogen charging， the yield strength of the hydrogen charging solution samples with sulfuric acid concentrations of 0.5 mol/L and 1.0 mol/L decreases by 14.60% and 20.22%， respectively， and the tensile strength decreases by 15.50% and 25.15%， respectively. Additionally， the mechanical properties of the alloy further decrease with the increase of the hydrogen ion concentration in the hydrogen-charged solution， and the fracture region near the surface shows more obvious brittle fracture characteristics. The precipitated phase， which undergoes a phase transition after hydrogen charging， remains on the surface of the BCC phase during fracture to form a higher and denser raised structure， and a structure distinct from the two phases is also found at the phase boundary. The evolution of hydrogen-induced nanoprecipitated phases leads to a decrease in the overall mechanical properties of the alloy.

Developing aluminum alloys with high strength， high conductivity， and thermal conductivity is the key to applying aluminum alloy materials in electrical， electronic， and heat dissipation industries. Aiming at these requirements， the effect of adding trace Eu to Al-Mg-Si-Fe alloy on the microstructure and properties of vacuum die-casting products are systematically studied. The results show that the alloy modification effect of adding 0.05%-0.25% （mass fraction/%， the same below）Eu first increases and then decreases. When adding 0.15%Eu， the grain is significantly refined， and the precipitation of the brittle （FeSiAl） eutectic phase and long plate-like eutectic Si in the alloy is restrained. The solid solubility of Mg in the aluminum matrix is reduced， and the lattice distortion of the alloy is reduced. Therefore the mechanical properties， electrical conductivity， and thermal conductivity of the alloy have been improved simultaneously. The Al-Mg-Si-Fe-0.15Eu alloy has a thermal conductivity of 68.50 mm²/s， electrical conductivity of 51.4% ICAS， tensile strength of 148 MPa， and elongation of 16.20%. Compared with the original Al-Mg-Si-Fe cast alloy， the thermal conductivity increases by 12.50%， the electrical conductivity increases by 1.4% ICAS， the tensile strength increases by 20 MPa， and the elongation increases by 5.40%. The tensile fracture morphology of the alloy changes from quasi-cleavage fracture to ductile fracture.

Flexible energy storage devices made from natural fiber braids have garnered significant attention due to their abundant availability， low cost， and mature and reliable structural design. However， these natural fiber materials typically suffer from low specific surface area and energy storage density. To address this issue， this study employs a multi-step treatment method， such as incorporating high-temperature carbonization， heterogeneous element doping， strong alkali etching， and MXene electrochemical active material coating，to treat commercial cotton fabrics. The effects of these multi-step treatments on the materials are explored through analyses of their chemical composition， microscopic morphology， microporous structure， and energy storage behavior. The results show that after multi-step treatment， the material maintains a good flexible characteristic， realizes the co-doping of N and S elements， and improves the microstructure of the carbon cloth material. Specifically， the average pore size on the surface of the carbon cloth decreases from 36.44 nm to 2.03 nm， while its specific surface area increased dramatically from 1.78 m²/g to 1043.37 m²/g， representing an increase of 58516%. Additionally， the total pore volume rises from 0.0162 mL/g to 0.53 mL/g. Following complex treatment， the carbon cloth achieves high specific capacitance of 530.83 F/g. However， the material still faces challenges regarding poor rate capability and unstable energy storage performance， which require further improvement in subsequent studies. This research outlines directions and provides technical and theoretical references for enhancing the energy storage performance of flexible carbon-based materials.

To solve the problems in Fenton-like reactions， such as slow Fe³⁺/Fe²⁺ redox cycle， low electron transfer rate at the material interface， and high electron density of Fe³⁺ in Fe-MOFs， Fe-Cu bimetallic nitro-functionalized MOFs material （NMIL-88B-Cu-1） is synthesized by a one-step solvothermal method based on the principle of redox coupling reaction. The material is characterized and applied to effectively degrade Congo red （CR） in a Fenton-like process. The effects of different materials， H₂O₂ dosage， pH， CR concentration， and coexisting ions on the degradation of CR are investigated. The stability of materials is verified， and the catalytic degradation mechanism is proposed. The results show that when the molar percentage of Fe³⁺ and Cu²⁺ are both 50%， NMIL-88B-Cu-1 with hexagonal rod structure and mesoporous can be assembled on α-Fe₂O₃. When CR is 10 mg/L， pH value is 3-7， NMIL-88B-Cu-1 catalyst is 0.1 g/L， and H₂O₂ is 0.5 mol/L， CR can be rapidly and efficiently degraded in 15 min. The degradation efficiency of CR is 98%， which is 1.95 times that of NO₂-MIL-88B and 2.24 times that of MIL-88B， respectively. The CR degradation efficiency could still reach 92% after 4 cycles， the content ratio of Fe³⁺/Fe²⁺ is only reduced by 5%， and its crystal structure remains the same， exhibiting the high cycle stability of NMIL-88B-Cu-1. In the system SO {}_{\mathrm{4}}^{\mathrm{2}-} and NO {}_{\mathrm{3}}^{-} do not affect the degradation of CR， while Cl^- and H₂PO {}_{\mathrm{4}}^{-} with a concentration of 0.09 mo/L show an inhibitory effect on the degradation of CR. The analysis of the mechanism shows that the electron density of Fe³⁺ in the center of the nitro-functionalized material is low， and the introduction of Cu²⁺ constructs Fe-Cu bimetallic MOFs materials. The redox coupling reaction between Fe and Cu and the synergistic effect of Fe-Cu promote the formation of Fe²⁺ effectively， and accelerate the e^- transfer at the interface of NMIL-88B. The generated ·OH can oxidize and degrade CR into inorganic small molecules such as CO₂ and H₂O.

The xTiB₂/Al-5Cu-0.85Mn-0.35Mg-0.5Ag（x=0%，1%，3%，5%，mass fraction， the same below） composites are fabricated by a mixed salt reaction method， followed by single-stage and interrupted aging treatments. The effects of differing thermal processing regimes on the microstructural and mechanical properties of the materials are systematically studied. The results indicate that as the TiB₂ content increases， both the hardness and strength of the composites show a continuous upward trend， while the elongation gradually decreases. When the TiB₂ content is 3%， after single-stage aging treatment （175 ℃/3 h）， the composite’s yield strength， tensile strength， elastic modulus， and elongation reach 465.1， 496.8 MPa， 78.9 GPa， and 4.8%， respectively. After undergoing an interrupted aging process at 175 ℃ for 1.5 h followed by 150 ℃ for 13.5 h， the yield strength， tensile strength， and elastic modulus of the composites increase to 479.3， 507.2 MPa， and 79.1 GPa， respectively， representing increases of 5.9%， 2.1%， and 0.25% compared to the single-stage aging treatment， with an elongation of 4.1%. The secondary aging temperature significantly affects the precipitation sequence of aging precipitates， which is the main reason for the substantial improvement in material properties. When the secondary aging temperature is 100 ℃， the θ'-Al₂Cu phase is the primary aging strengthening phase. At a secondary aging temperature of 150 ℃， the Ω-Al₂Cu phase becomes the main aging strengthening phase.

To further modify the mechanical properties and improve the electrical and thermal conductivity of polyacrylonitrile-based carbon fibers， the typical high-strength and high-modulus M40J carbon fibers are applied as raw material. The high-temperature drawing characteristics of high-strength and high-modulus carbon fibers and the influence of high-temperature plasticizing drawing on their structure and properties are studied using an online tension meter， XRD， density gradient meter， mechanical testing， and a multimeter. By analyzing the stress response of carbon fibers during high-temperature plasticization and drawing， it is found that when the temperature reaches above 2200 ℃， the stress generated by the fibers during the drawing process remains basically unchanged and the fibers undergoes stable plasticization deformation. This indicates that 2200 ℃ is the transition temperature of plastic deformation for M40J carbon fibers. Plastic drawing at high temperature promotes the growth， elongation， and orientation of graphite microcrystal in the carbon fibers. By applying 6.0% plastic drawing rate to M40J carbon fibers at 2500 ℃， the tensile modulus increases from 368 GPa to 503 GPa， the tensile strength remains good （4.49 GPa）， the electrical resistivity decreases from 11.26 μΩ·m to 9.05 μΩ·m， and the thermal conductivity increases from 63.60 W·m^-1·K^-1 to 100.73 W·m^-1·K^-1.

This study investigates the influence and underlying microstructural mechanisms of electrospun polyetherimide （PEI） nanofiber membranes on the interlaminar toughness and in-plane mechanical properties of vacuum-assisted resin infusion （VARI） process molded carbon fiber/epoxy （CF/EP） composites. It is founded that PEI nanofiber membranes exhibit good wettability with epoxy resin and do not impede resin flow. PEI nanofiber membranes are suitable for the VARI process under the conditions of a 70 ℃ resin infusion temperature and infusion time less than 30 min. Furthermore， they are dissolved completely within 6 minutes at the resin curing temperature of 120 ℃. Incorporation of PEI nanofiber membranes enhances the interlaminar toughness and in-plane mechanical properties of CF/EP composites. Interleaving 15 g/m² PEI nanofiber membrane in CF/EP composites increases the mode Ⅰ interlaminar fracture toughness， mode Ⅱ interlaminar fracture toughness， and interlaminar shear strength by 55.1%， 65.4%， and 12.2%， respectively. Introducting a 20 g/m² PEI nanofiber membrane in CF/EP composites enhances the flexural strength and modulus by 10.6% and 9.3%， respectively. Moreover， adopting a 10 g/m² PEI nanofiber membrane enhances the compression strength and modulus of CF/EP composites by 24.3% and 18.9%， respectively. The in-situ dissolution of PEI nanofiber membranes and the reaction induce phase separation during epoxy resin curing lead to a homogeneous PEI/epoxy resin bi-phase structure in the interlaminar region of CF/EP composites. These structures enhance the resistance to crack propagation and the load transfer capability of the interlaminar resin matrix， probably improvement in interlaminar toughness and in-plane mechanical properties of CF/EP composites.

The new medium temperature curing adhesive film （SY-59） is prepared using core-shell particle as the toughening agent. The influence of core-shell particle toughening agent on the microstructure， glass transition temperature （T _g）， bonding properties， and high-temperature resistance properties of the medium temperature curing adhesive films are studied. The results show that the tensile shear strength and the floating roller peel strength of the adhesive film improve significantly by adding the core-shell particle toughening agent. The SY-59 adhesive film exhibits characteristics of high strength and high toughness. The optimal content of the core-shell particle toughening agent is 15 phr， and the 23 ℃ tensile shear strength and the 23 ℃ floating roller peel strength of the corresponding adhesive film can reach 40.5 MPa and 10.6 kN·m^-1 respectively. Meanwhile， compared with the carboxyl-terminated butadiene-acrylonitrile rubber （CTBN） toughening agents， the T _g of the medium temperature resin system modified core-shell particle toughening agents have no significant changes after being added to the medium temperature curing resin system. It indicates that core-shell particle toughening agents can effectively solve the problem of poor high-temperature resistance properties of rubber toughened medium temperature curing adhesive films， making the adhesive film with good high-temperatures resistance properties. The 120 ℃ and 150 ℃ tensile shear strength of the SY-59 adhesive film can reach 29.8 MPa and 10.2 MPa. Finally， the comprehensive properties of SY-59 adhesive film are evaluated， and the results show that the SY-59 adhesive film has excellent medium resistance properties， environmental resistance properties， batch stability properties and storage stability properties.

The carboxyl-functionalized poly（methyl methacrylate） microspheres were successfully synthesized via soap-free emulsion polymerization， utilizing methyl methacrylate and styrene as monomers， acrylic acid as functional monomer， and methyl methacrylate isobutylene as crosslinking agent. These microspheres were employed to adsorb methylene blue （MB）， and the impact of acrylic acid contents on the morphology and adsorption capacity of the microspheres was systematically investigated. The SEM， FT-IR， and TG were employed to comprehensively analyze the synthesized products. The results reveal that， when the amount of acrylic acid is 1/3 of the total amount of monomers， the microspheres exhibit uniform morphology with a narrow particle size distribution of about 854 nm. These microspheres demonstrate excellent adsorption performance for methylene blue dye at 303.15 K， with a theoretical maximum adsorption capacity of 177.69 mg·g^-1. The adsorption process is exothermic， and the adsorption data fit well with the pseudo-second-order kinetic model and Langmuir isotherm model. After 5 cycles of adsorption-regeneration， the microspheres still maintain an adsorption efficiency of more than 97% for MB.