Pickering Emulsion Method Research Articles

Construction of Multi-functional Silicone Rubber/Reduced Graphene Oxide/Multi-walled Carbon Nanotube Composites with Segregated Structure by Surfactant-free Pickering Emulsion Method

Construction of Multi-functional Silicone Rubber/Reduced Graphene Oxide/Multi-walled Carbon Nanotube Composites with Segregated Structure by Surfactant-free Pickering Emulsion Method

Preparation of aerogels with SBS@rGO structure by Pickering emulsion method for innovative applications in pressure sensors

Pressure sensors based on graphene conductive fillers show great promise for application in the field of smart wearable devices. The SBS@rGO structured aerogel sensors covered herein were prepared by the Pickering emulsion method based on a solution of styrene-butadiene-styrene (SBS) and reduced graphene oxide (rGO) dispersion. The mechanical properties of SBS@rGO aerogel were tested with 100 independent loading-unloading cycles in a graded compressive strain range of 10–40 %. The results indicate that the SBS@rGO aerogel have fast and slightly destructive resilience after unloading at low compressive strains (ε ≤ 30 %). Moreover, the presence of rGO endowed SBS@rGO with pressure sensing properties such as high electrical conductivity (2.294 S/m), high sensitivity (0.016 kPa−1 at 6.36–100 kPa), short signal response time (60 ms) and recovery time (30 ms). The SBS@rGO pressure sensors were integrated into shoe soles to simulate walking scenes, whose response signals had excellent reproducibility and could be differentiated according to three different walking states. The potential and feasibility of SBS@rGO aerogel as wearable flexible pressure sensors has been demonstrated.

Use of the Pickering Emulsion Method for the Preparation of Nano‐Aluminum Powder/Fluororubber Composite Microspheres

AbstractThe combination of fluoropolymer and nano‐thermite has been a research focus in the field of materials in the field of energy and storage in recent years, but it faces the problem of uneven mixing of fluoropolymer and nano‐aluminum powder (nAl). Therefore, it is of great significance to obtain a fluorine/aluminum uniform composite by a solid/solid phase mixing method. In this paper, Pickering emulsions effectively blend difficult‐to‐mix powders of nAl and solid bulk fluoroelastomers on the micro‐ and nanoscale. The emulsion was prepared by Pickering emulsion with an ethyl acetate solution of fluororubber as the oil phase and perfluorocarboxylic acid‐modified nano‐aluminum powder as a surfactant. The effects of oil/water ratio, fluororubber/aluminum ratio, and standing time on the stability of the emulsion were studied. The nano‐aluminum powder/fluororubber composite microspheres were prepared and their morphology, thermal decomposition, and combustion properties were characterized. The results showed that the emulsion prepared with the oil/water ratio of 1:8 and m(fluororubber):m(modified nano‐aluminum powder) of 5:1 had good stability and dispersion. The transmission electron microscopy (TEM) and scanning electron microscopy (SEM) results showed that the complex was observed to be regular spherical and the size was about 10 µm, and the composite microspheres prepared by the Pickering emulsion had good. The TG‐DSC results showed that the decomposition of the composite microspheres started at about 450 °C and finished at 519 °C. The composite microspheres prepared in this paper are stable and rapid in exotherm, with a combustion rate of 33 cm s−1 and excellent combustion performance. The Pickering emulsion introduces a new idea for the preparation of thermite by mixing the solid reactants at the micro‐nano level without introducing substances that reduce the energy of the system.

Polyaniline-Coated Na3V2(PO4)2F3 Cathode Enables Fast Sodium Ion Diffusion and Structural Stability in Rechargeable Batteries.

Na3V2(PO4)2F3 (NVPF), a typical sodium superionic conductor (NASICON) type structure, has attracted much interest as a potential positive electrode in sodium-ion battery. However, the inherently poor electronic conductivity of phosphates compromises the electrochemical properties of this material. Here, we develop a general strategy to improve the electrochemical performance by preparing a new composite material "polyaniline (PANI)@NVPF" using a Pickering emulsion method. The X-ray diffraction and Raman results indicated a successful PANI coating without affecting the NASICON-type structure of NVPF, and they enhanced the interfacial bonding between the two components. Also, thermogravimetric analysis and scanning electron microscopy analyses revealed that the PANI content influenced the thermal stability and morphology of the nanocomposites. As a result, the sodium test cells exhibited multielectron reactions and a better rate performance for PANI@NVPF nanocomposites as compared to NVPF. Specifically, 2%PANI@NVPF maintained 70% of its initial capacity at 5C. Ex-situ electron paramagnetic resonance revealed the existence of mixed valence states of vanadium (V4+/V3+) in both discharge and charge processes. Consequently, the successful PANI coating into the sodium superionic conductor framework improved the sodium diffusion channels with a measurable increase of diffusion coefficients with cycling (ca. 3.25 × 10-11 cm2 s-1). Therefore, PANI@NVPF nanocomposites are promising cathode candidates for high-rate sodium-ion battery applications.

Preparation of polyurethane shell microcapsules containing isocyanate core by Pickering emulsion method using modified silica nanoparticles and investigation of their self-healing performance

Encapsulating repair agents are increasingly popular for repairing coating damage, with capsules being a common method to address surface scratches by releasing healing liquid into the fissure. However, creating microcapsules that are durable against environmental factors remains a key concern. Current research focuses on advancements in encapsulating healing agents and their production methods, particularly emphasizing the integration of capsules into coatings for external self-healing purposes. Polyurethane capsules containing isophorone diisocyanate were synthesized using the Pickering emulsion method with modified silica as a Pickering emulsion stabilizer in three different percentages and then dispersed in urea formaldehyde at varying weight percentages. The self-healing properties of this coating were then studied. Fourier transform infrared spectroscopy (FTIR), Soxhlet extraction, and thermogravimetric analysis (TGA) were performed on the samples to ensure the success of the encapsulation process. The morphology of the capsules was investigated using field emission scanning electron microscopy (FE-SEM), revealing that the synthesized capsules possess a spherical shape and are adequately spaced apart. These capsules were spherical at micron scales, with differences observed based on the quantity of stabilizing nanoparticles employed. Furthermore, the capsules demonstrated robust thermal stability, as evidenced by the increase in IPDI evaporation temperature from approximately 140 °C to 240 °C.Immersion test results in saltwater solutions showed that coatings containing pickering capsules exhibited better corrosion resistance, further validating the success of the research. The shell strength of the capsules prepared using the Pickering method was increased, enhancing the stability of the microcapsules during the mixing process with the resin and demonstrating self-healing properties. These findings have significant practical implications, as they demonstrate the potential to improve the durability and lifespan of coatings in various applications.

Pickering emulsion stabilized by cellulose nanofibril from pineapple leaves for biofoam manufacture

Cellulose nano fibril (CNF) can be selected as an agent of pickering emulsion in biofoam manufacture. This study thoroughly investigates the pickering emulsion method for producing biofoam, the characterization of CNF from pineapple leaves, the production of biofoam with various concentration of CNF and surfactant, and the effect of these parameters on the properties of wet foam and dry foam. CNF was created by mechanical grinding then the stability and morphology were evaluated. The pickering emulsion mechanism in biofoam manufacture was investigated using foamability and foam stability with various CNF and surfactant concentration. As the results, CNF concentrations will create varying zeta potential values. The morphology of CNF shows that it has a structure-like entangled network. The stability test demonstrates that adding CNF improves the stability and foamability of biofoam by the pickering effect. Biofoam without CNF has an unstable structure and is easily collapse when dried in an oven. The concentration of CNF and the amount of surfactant utilized altered the qualities of both wet and dry foam. The lower concentration of CNF and the addition of surfactant could increases foamability, high porosity, water absorption, and biodegradability; as well as low density, contact angle and bending characteristics. In biofoam that consists of 2 % CNF, the stability of wet foam increases as the amount of surfactant added, resulting in a biofoam with low tensile strength.

Preservation of chilled beef using active films based on bacterial cellulose and polyvinyl alcohol with the incorporation of Perilla essential oil Pickering emulsion

In this study, Perilla essential oil (PEO) Pickering emulsions, prepared using soybean protein isolate-chitosan nanoparticles (SPI-CSNPs) as emulsifiers (SCEO), were used to improve the performance of bacterial cellulose/polyvinyl alcohol (BC/PVA) films for application in chilled beef preservation. The SCEO has a smaller particle size (185 nm), higher viscosity, a more uniform dispersion and was more stable at an oil phase volume fraction of 80 %. An increase in the films' surface roughness and in the hydrogen bonding between SCEO and the films' matrix was also observed, resulting in a lower tensile strength (TS, 94.75–62.02 MPa) and higher elongation at break (EAB, 26.78–55.62 %). Moreover, the thermal stability, water vapor permeability, antioxidant and antibacterial properties of the composite films improved as the SCEO content increased. Furthermore, the Pickering emulsion method was effective in preventing the loss of PEO during storage. Overall, one particular composite film, BP/SCEO3, could prolong the shelf life of chilled beef by up to 14 days, and hence was promising for food preservation.

Non-covalent interaction induces controlled reinforcement of thermoplastic elastomer composites homologously incorporated with hydrophobized cellulose nanocrystals

Surface hydrophobization of cellulose nanocrystal (CNC) is developed through Pickering emulsion method and esterification-grafting, consequentially enhancing its thermal properties and hydrophobicity, and tensile modulus in thermoplastic elastomer composites. n-Tetradecenylsuccinic anhydride (TDSA) provides a high level of compatibility owing to the structural homology by non-covalent interactions between CNC-graft-TDSA and poly(styrene)-block-poly(isoprene)-block-poly(styrene) (SIS). Theoretical calculations supports the molecular-level insight on how the nanofiller and SIS interacts. Density functional theory calculations and the energy decomposition analysis reveal the stabilization free energy of −2.59 kcal mol−1 gained through hydrophobic and OH–π interactions, which is assigned as the key component for the superior mechanical properties. At the filler contents of 0.6–2.5 vol %, the moduli of the TPE nanocomposites gradually strengthen while retaining thermoplasticity, without sacrificing the ultimate tensile characteristics of SIS, although it is below the calculated φc of 5.9 vol % (critical percolation threshold) for filler-filler interactions. Origin of the controlled boost in filler-matrix binding is rationalized by pronounced hydrophobic interactions in isoprene-rich rubbery phase (86 wt % in SIS). Interestingly, at 5.1 vol % near to filler-filler interactions, even though reinforcements in storage/initial modulus, and toughness increase by up to 14/4.0-, and 1.2-fold, the tensile stress at break only decreases by 27 %.

Spherical core-shell CL-20@LLM-105 composites with excellent mechanical sensibility obtained by Pickering emulsion

The effect of crystallization conditions on the morphology, particle size and dispersibility of 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) was investigated by solvent-nonsolvent method, and nano-LLM-105 was successfully prepared and used as a surfactant after modification with stearic acid. A spherical core-shell composites of CL-20@LLM-105 was prepared by Pickering emulsion method. The morphology, crystal structure, and thermal decomposition properties were characterized by scanning electron microscopy (SEM), powder X-ray diffractometry (XRD), differential scanning calorimetry (DSC), fourier transform infrared (FT-IR) tested for impact and friction sensibility. The results showed that the prepared composites had a particle size of 50–100 μm, a spherical core-shell structure, and nano-LLM-105 was encapsulated on its surface. The peak thermal decomposition temperature of the composites was 252.7 ℃, which was 9.4 ℃ higher than that of the raw material CL-20. Compared with the CL-20/LLM-105 mixture with the same ratio, the characteristic drop height (H50) of the CL-20@LLM-spherical compoe-shell site was increased by 13 cm, and the explosion probability (P) was reduced by 43%. The spherical core-shell composites prepared by this method is characterized by high energy and excellent mechanical sensibility, which is expected to provide new ideas for the design of explosive formulations containing CL-20 and nanoenergy-containing materials in the direction of high safety and high energy.

Eco-Friendly Production of Boron Nitride Nanosheets via Deep Eutectic Solvents and Their Application in Enhancing Thermal Conductivity of PVDF Composites.

Boron nitride nanosheets (BNNS) are expected to be ideal fillers because of their high thermal conductivity and excellent electrical insulation. However, it is still an open challenge to produce BNNS on a large scale using ecofriendly solvents. Here, first, we demonstrate an effective liquid exfoliation method for producing BNNS via utilizing deep eutectic solvents (DES) composed of D,L-menthol and various acids with the assistance of ultrasonication. The results show that the BNNSs with sizes of 1-2 μm in width and 6-8 nm in thickness were successfully exfoliated with a DES formulation of D,L-menthol and decanoic acid. Second, the obtained BNNSs were used for fabricating 1,6-hexanediol diacrylate@polydopamine functionalized BNNS (HDDA@BNNSs-PDA) core-shell microspheres via a Pickering emulsion method. Furthermore, these microspheres were incorporated into a polyvinylidene fluoride (PVDF) matrix to construct 3D thermally conductive networks, leading to a substantial enhancement in the thermal conductivity of the resulting composites. Impressively, the composites with only 25 wt % of BNNS loading reach a high thermal conductivity of 3.20 W/m K, which is a 1500% increase over the pure polymer matrix. This work not only provides a significant way for producing BNNSs ecofriendly but also demonstrates a tactic for constructing 3D thermally conductive networks.

Fabrication of composite polymer microcapsules via the supercritical extraction of Pickering emulsion Method: Insights into emulsification and extraction

Polyphenylene oxide (PPO)/cellulose nanocrystal (CNC)/carbon black (CB) microcapsules were fabricated by the supercritical extraction of Pickering emulsion (SFEPE) method. The effects of Pickering emulsion formulations on the emulsion properties, emulsification kinetics, and CPM properties were investigated. The phase behaviors in the supercritical extraction process were studied, and the mass transfer between the emulsion droplet and supercritical carbon dioxide (SCCO2) was also interpreted. The results indicate that CNC concentration, CB concentration, and NaCl concentration can decrease the droplet size and creaming index of emulsions, while the water–oil ratio can decrease the droplet size but enhance the creaming index. The emulsion formulations of water–oil > 3, CNC concentration > 0.25 mg/mL, CB concentration < 2.5 mg/mL, and NaCl concentration > 2.5 mg/mL are conducive to the emulsion formation and emulsification kinetics. For the supercritical extraction on Pickering emulsions, the operation conditions slightly above the mixture critical point (9 MPa at 313 K, for example) are proved to be conducive to the extraction.

Stiff and thermal stable PLA/nanocellulose biocomposites prepared by Pickering emulsion method and cold crystallization

Stiff and thermal stable PLA/nanocellulose biocomposites prepared by Pickering emulsion method and cold crystallization

Graphitization modified three-dimensional fully interconnected high porous TiO2 ceramics: A promising carrier material for thermal storage and thermal conductivity enhancement

In this work, porous TiO2 ceramics (PTC) and the graphitization modification of PTC (GPTC) with three-dimensional fully interconnected and uniform pore structure as a carrier for PCM was prepared by the Pickering emulsion method. Compared with PTC, the thermal conductivity and porosity of GPTCs were further improved and the specific surface area of GPTCs was increased by 5.7 times. The results of DSC curves showed that the melting and solidification enthalpy of PEG-GPTC20 were 143.8 J/g and 139.0 J/g, respectively, which only decrease by 0.68 % and 0.35 % after 100 phase change cycles. The experimental thermal conductivity of PEG-GPTC20 composites improved by 3.2 times. The results of non-isothermal crystallization kinetics revealed that the nucleation activation energy: PEG>PEG-PTC > PEG-GPTC, which indicated that GPTCs porous carrier encapsulation was beneficial to the nucleation process of PEG. The PEG-GPTCs composite phase change material designed in this paper has significant advantages in maintaining high thermal conductivity and heat storage performance at the same time while comparing other composites. Therefore, GPTCs are a promising carrier material for thermal storage and thermal conductivity enhancement.

Preparation of Elastic Macroporous Graphene Aerogel Based on Pickering Emulsion Method and Combination with ETPU for High Performance Piezoresistive Sensors.

High-performance pressure sensors provide the necessary conditions for smart shoe applications. In this paper, the elastic Macroporous Graphene Aerogel (MGA) was synthesized via the modified Hummers' method, and it was further combined with Expanded-Thermoplastic polyurethane (ETPU) particles to assemble MGA-ETPU flexible sensors. The MGA-ETPU has a low apparent density (3.02 mg/cm3), high conductivity (0.024 S/cm) and fast response time (50 ms). The MGA-ETPU has a large linear sensing range (0-10 kPa) and consists of two linear regions: the low-pressure region (0 to 8 kPa) and the high-pressure region (8 to 10 kPa), with sensitivities of 0.08 kPa-1, and 0.246 kPa-1, respectively. Mechanical test results show that the MGA-ETPU sensor showed 19% reduction in maximum stress after 400 loading-unloading compression cycles at 40% strain. Electrical performance tests showed that the resistance of MGA-ETPU sensor decreased by 12.5% when subjected to sudden compression at 82% strain and returned to its original state within 0.05 s. Compared to existing flexible sensors, the MGA-ETPU sensors offer excellent performance and several distinct advantages, including ease of fabrication, high sensitivity, fast response time, and good flexibility. These remarkable features make them ideally suited as flexible pressure sensors for smart shoes.

Preparation of robust silicone superhydrophobic and antibacterial textiles using the Pickering emulsion method

This study aimed to prepare textiles with superhydrophobic and antibacterial properties using the Pickering emulsion impregnation method. Cellulose nanocrystals were synergistically employed with dimethyloctadecyl[3-(trimethoxysilyl)-propyl] ammonium chloride as the solid surfactant, and hydrogenated (PHMS) and hydroxyl (MSDS) polysiloxane were used as the oil phase for emulsification. The emulsions were mixed and diluted in specific proportions, and the superhydrophobic and antibacterial textiles were prepared through fabric impregnation–drying strategies. The study optimised factors such as emulsion ratio and surfactant dosage. Results demonstrated that the nanoscale rough structure prepared using Pickering emulsion exhibited remarkable superhydrophobicity with contact and rolling angles of 163.1° ± 0.5° and 7.2° ± 0.2°, respectively. This effect was achieved when the ratio of PHMS emulsion to MSDS emulsion was maintained at 1:2 and the surfactant dosage was set at 2 %. The superhydrophobicity of textiles was maintained even after three washing cycles and 50 abrasion cycles, demonstrating excellent mechanical durability. The developed textiles also exhibited excellent oil/water separation ability, reliable recyclability and stability. Moreover, they demonstrated excellent self-cleaning and antibacterial capabilities. Thus, these valuable functionalities hold the potential to considerably improve the practical feasibility of superhydrophobic textiles in various application scenarios.

Preparation of magnetic Janus microparticles for the rapid removal of microplastics from water

The continuous spread of microplastics in aquatic environments poses a growing concern and a potential risk to human health. To address this concern, this paper presents a novel approach using magnetic Janus microparticles (MJMs) synthesized via a modified Pickering emulsion method with aminated Fe3O4@SiO2 as the raw material. The effectiveness of these MJMs in removing polystyrene (PS) and polyethylene (PE) microplastics from water was investigated. Paraffin was employed as the masking agent, while N-Octadecylphosphosphonic acid (PAC18) was used as the graft material for MJM preparation. The resulting particles exhibited a distinctive asymmetric flower-shaped structure on the surface, which was confirmed through various analytical techniques including FTIR, TGA, SEM, and water phase contact angle analysis. The MJMs demonstrated exceptional efficiency in adsorbing microplastics. With a microplastic suspension concentration of 2 mg/mL and an adsorbent dosage of 1 mg/mL, the MJMs can attain removal efficiencies of 92.08 % for PS and 60.67 % for PE in just 20 min of contact time. The effectiveness of the adsorption process was attributed to several factors, including hydrophobic interactions, cation-π interactions, electrostatic attraction, and the efficient dispersion of particles in water, as revealed by size distribution and zeta potential analysis. Additionally, kinetic and thermodynamic studies confirmed the remarkable adsorption rate and capacity of the MJMs (0.759 min−1 and 2.72 mg/mg for PS, 0.539 min−1 and 2.42 mg/mg for PE), highlighting their potential as a promising method for rapidly removing microplastics from water. This work provides valuable insights into the development of effective strategies for addressing microplastic pollution in aquatic environments.

Preparation of microcellular polycaprolactone/cellulose nanocrystal/carbon black conductive composites using the Pickering emulsion method combined with supercritical batch foaming technology

AbstractThe “two‐step” strategy composed of Pickering emulsion method and supercritical batch foaming technology is successfully conducted to prepare the microcellular polycaprolactone (PCL)/cellulose nanocrystal (CNC)/carbon black (CB) conductive composites. Benefitting from the segregated CNC/CB networks established in the PCL matrix, the obtained microcellular conductive composites can present improved electrical and mechanical performance, and uniform foam structures. The percolation threshold (φc) is estimated as low as ~0.84 wt%, and the minimum tensile strain and strength belonging to the foamed composite with 10 wt% of CB content still maintain 15% and 3.95 MPa, respectively. This study hopes to provide an attempt to prepare microcellular conductive composites with great comprehensive performance.

Performance Evaluation and Formation Mechanism of Viscoelastic Surfactant Fracturing Fluids with Moderate Interfacial Activity Enhanced by Janus-SiO2 Nanoparticles.

Nanoparticles (NPs) exhibit great potential to improve various properties of viscoelastic surfactant (VES) fracturing fluids in the development of low-permeability reservoirs. In the present study, the amphiphilic Janus NPs (JANPs) were fabricated via the Pickering emulsion method and employed to construct the novel JA12C (JANPs with dodecyl hydrophobic carbon chains)-assisted VES fracturing fluid (JAVES). The successful fabrication of JANPs was confirmed via Fourier transform infrared spectroscopy (FTIR) measurements and water contact angle tests. The rheology behavior of the VES fracturing fluid incorporating various SiO2 NPs including hydrophilic SiO2 NPs (HLNPs), JA8C (JANPs with octyl hydrophobic carbon chains), and JA12C was systematically investigated. It was revealed that the additional JA12C significantly improved the tolerance and proppant suspension properties. To explore the subsequent oil recovery performance of various gel breaking liquids, the formation wettability and the oil-water interfacial tension (IFT) were studied after the evaluation of breaking properties and formation damage properties of various fracturing fluids. The results suggested that the JAVES gel breaking liquid showed remarkable wettability alternation capability and moderate oil-water IFT reduction ability, which can partially reduce the impact on reservoir permeability. Moreover, the formation mechanism of the JAVES was proposed by molecular dynamics simulations at the molecular level, which was further visually verified via the cryo-TEM images. The improved viscoelasticity of developed the JAVES with moderate interfacial activity is advantageous to enhance subsequent oil recovery.

Multifunctional organohydrogel with rambutan-like microstructure for waste heat recovery and intelligent sensing

Energy shortages and ecological concerns have led to a focus on efficient waste heat utilization. Phase-change organohydrogels and thermoelectric generators combine to provide electricity from waste heat, which is a promising method for waste heat recovery and reuse. In this work, a multifunctional organohydrogel was elaborately fabricated through the Pickering emulsion method and UV-initiated polymerization, composed of rambutan-like phase change microspheres and polyacrylamide (PAAm) skeleton. In particular, the paraffin wax (PW) was employed as a phase change material and microencapsulated within cellulose nanofibril (CNF)/carbon nanotube (CNT)/Fe3O4 hybrid shells. Attributed to the unique microspheres, the resultant organohydrogel possessed various advanced features. The phase transition behaviors of the microspheres enabled the organohydrogel to store, release, and manage thermal energy. Harvested waste heat can be efficiently stored in the organohydrogel and discharged into the thermoelectric system. The thermoelectric generator achieved remarkable output voltage and current of 518.0 mV and 86.3 mA via thermal-electricity conversion, respectively. Additionally, the organohydrogel also exhibited favorable thermosensitive properties over a wide temperature range (from −18.0 to 90.0 °C), and mechanical responsiveness with a low detection limit (1.0%). Thus, organohydrogels with rambutan-like microstructures presented promising potentials for thermal energy storage systems and next-generation multifunctional electronic devices.

Preparation of two‐component micro‐encapsulated epoxy self‐healing materials based on Pickering emulsion method

AbstractThe use of microencapsulated self‐healing materials has been widely applied in many fields, while factors (e.g., the size and content of the microcapsules) markedly affect the mechanical properties of the self‐healing material. In this study, an epoxy‐amine microencapsulated self‐healing material was developed through Pickering emulsion to reduce the effects of the above‐mentioned factors. In this study, the Pickering emulsion was stabilized using two two‐dimensional (2D) materials (i.e., GO and BN), and epoxy microcapsules and amine microcapsules were prepared, with average size of 3.62 and 4.63 μm, respectively. FTIR spectroscopy was used to identify the presence of characteristic PU peaks in the microcapsules, and the bilayer shell microcapsules were well‐prepared. To prepare the binary epoxy resin self‐healing material, two microcapsules were added to the epoxy resin matrix and its mechanical properties were analyzed. Based on the test results, it was suggested that the addition of microcapsules in this study slightly affected the mechanical properties of the material, and the binary self‐healing material still exhibited 89% of the bending stress below the 10 wt% content of the microcapsules. In addition, the tensile stress after repair was 148% of that before. These materials have promising applications in many areas (e.g., engineering technology).