Composites Communications最新文献_第2页

A flexible sandwich-structured composite film for EMI shielding, thermal management, stress sensing and flame retardancy in wearable electronics

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102375

Lin Yang , Changgeng Li , Tongle Pu , Yunjun Ruan , Tong Guo

{"title":"A flexible sandwich-structured composite film for EMI shielding, thermal management, stress sensing and flame retardancy in wearable electronics","authors":"Lin Yang , Changgeng Li , Tongle Pu , Yunjun Ruan , Tong Guo","doi":"10.1016/j.coco.2025.102375","DOIUrl":"10.1016/j.coco.2025.102375","url":null,"abstract":"<div><div>The increasing demand for wearable electronics necessitates multifunctional composite films with capabilities such as electromagnetic interference (EMI) shielding, thermal management, and stress sensing. Herein, a flexible multifunctional composite film (PMF) with a sandwich structure was fabricated using a simple vacuum filtration. The multifunctionality and balance of the PMF film are primarily derived from the middle layer of its sandwich structure, which is composed of a blend of MXene, phase change materials, and cellulose nanofibers. This unique composition imparts excellent electrical conductivity, thermal conductivity, heat storage capacity, and mechanical properties to the composite film. Consequently, the PMF film exhibits superior mechanical performance (tensile strength: 20.3 MPa, elongation: 22.5 %), EMI shielding (34.8 dB and 7356.93 dB cm<sup>2</sup> g<sup>−1</sup>), and efficient thermal management under light exposure (ΔT: 16 °C–43 °C within 95 s). The polyvinyl alcohol outer layers of the sandwich structure offer a flexible substrate and protect MXene from oxidation. Additionally, the PMF film functions as a stress sensor, capable of monitoring wrist flexion, finger bending, and vocal cord vibrations, while also offering flame retardancy. In conclusion, this meticulously engineered PMF film has significant potential for applications in wearable electronics, because of the combination of EMI shielding, thermal management, stress sensing, and flame resistance.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102375"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A facile strategy for constructing biomimetic continuous fiber reinforced biocomposites with spatial Bouligand structure

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102351

Xueni Zhao, Zhipeng Zhu

{"title":"A facile strategy for constructing biomimetic continuous fiber reinforced biocomposites with spatial Bouligand structure","authors":"Xueni Zhao, Zhipeng Zhu","doi":"10.1016/j.coco.2025.102351","DOIUrl":"10.1016/j.coco.2025.102351","url":null,"abstract":"<div><div>Considering that biomimetic Bouligand structure can simultaneously improve strength and toughness and fiber can guide crack propagation path in fiber reinforced composites, unique 3D (spatial) Bouligand structural composites where crack deflection, twisting, and branching are more likely to occur compared to 2D (planar) ones were constructed by a convenient and reliable preparation method. Compressive strength and flexural strength of biomimetic continuous carbon fiber reinforced hydroxyapatite (CF/HA) composites with spatial Bouligand (SB) structure respectively increase by 85.55 % and 38.42 % compared to those of the composites with a common planar Bouligand (PB) structure. The 3-dimensional stacked Bouligand structure causes further crack deflection and energy dissipation, resulting in a superior mechanical property over PB structure. Compressive strength (190.2 MPa), flexural strength (78.9 MPa), and fracture toughness (24.4 MPa m<sup>1/2</sup>) of the SB composites can meet the requirements of weight-bearing bone, which will allow them to be used for ceramic bone plates and bone nails. This study also offer a facile strategy for the construction of advanced ceramics, metal, and polymer based composites with simultaneously improved strength and toughness.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102351"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective binding of MOF and TiO2 particles: A novel composite material capable of rapidly methylene blue

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102359

Shengyang Zheng , Wei Yu , Xinyi Zhang , Xin Wang , Haitao Zhao , Lijun Meng

{"title":"Effective binding of MOF and TiO2 particles: A novel composite material capable of rapidly methylene blue","authors":"Shengyang Zheng , Wei Yu , Xinyi Zhang , Xin Wang , Haitao Zhao , Lijun Meng","doi":"10.1016/j.coco.2025.102359","DOIUrl":"10.1016/j.coco.2025.102359","url":null,"abstract":"<div><div>This study fabricated a novel MIL-88A/TiO<sub>2</sub> composite photo-Fenton catalyst through a one-step hydrothermal method for efficient degradation of Methylene Blue (MB) in organic dye wastewater. MIL-88A, leveraging its visible-light responsiveness and high specific surface area, significantly enhanced the composite material's light absorption range (extended to 600 nm) and photogenerated charge separation efficiency when composited with TiO<sub>2</sub>. Characterizations via XRD, FTIR, SEM, and XPS confirmed the successful combination of TiO<sub>2</sub> and MIL-88A in the composite. The conduction band potential (−0.59 eV) and valence band potential (1.88 eV) of MIL-88A/TiO<sub>2</sub> were well-matched, promoting efficient separation of electron-hole pairs. Photo-Fenton experiments revealed that under pH 3.0 and 5 mM H<sub>2</sub>O<sub>2</sub> dosage, the composite could completely degrade 50 mg/L MB solution within 10 min, with degradation efficiency significantly superior to single components. Radical trapping experiments and ESR analysis indicated that hydroxyl radical(OH) and electrons (e−) were the dominant active species, and the reaction mechanism involved photo-generated electron-driven Fe<sup>3+</sup>/Fe<sup>2+</sup> redox cycling and H<sub>2</sub>O<sub>2</sub> decomposition to produce reactive radicals. In addition, the material maintained a degradation efficiency of over 95 % after five cycles and exhibited good structural stability. The stable performance of MIL-88A/TiO<sub>2</sub> in a wide pH range (3.0–9.0) and in the actual environment with co-existing ions further highlights its application potential. This study provides new insights into the development of efficient and stable photo-Fenton catalytic materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102359"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Si3N4 fiber-reinforced epoxy resin composites with different c-BN content for printed circuit board applications

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102355

Qinghe Shi, Kang Jin, Yuxuan Zhang, Hongyan Xia

{"title":"Si3N4 fiber-reinforced epoxy resin composites with different c-BN content for printed circuit board applications","authors":"Qinghe Shi, Kang Jin, Yuxuan Zhang, Hongyan Xia","doi":"10.1016/j.coco.2025.102355","DOIUrl":"10.1016/j.coco.2025.102355","url":null,"abstract":"<div><div>Fiber-reinforced resin matrix composites are widely used in organic printed circuit boards (PCBs). However, conventional glass fiber reinforced epoxy resin (EP) matrix composites suffer from low thermal conductivity and poor electrical properties. Herein, to coordinate the thermal and electrical properties of the composites, a novel c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composite for PCBs was prepared by hot-pressing moulding method by selecting Si<sub>3</sub>N<sub>4</sub> fibers instead of glass fibers and introducing nano cubic boron nitride (c-BN) particles as filler at the same time. Combined with Si<sub>3</sub>N<sub>4</sub> fibers, nano c-BN filler with suitable content can further improve thermal transfer capacity and limit the volume shrinkage of EP during curing, resulting in the decreased porosity and strong interfacial bonding between Si<sub>3</sub>N<sub>4</sub> fibers and EP. When c-BN content is 20 wt%, the c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composite shows excellent in-plane thermal conductivity (2.124 W m<sup>−1</sup> K<sup>−1</sup>), low coefficient of thermal expansion (4.34 ppm K<sup>−1</sup>) and excellent breakdown strength (55.71 kV mm<sup>−1</sup>). Therefore, the c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composites have a potential application in the field of organic PCBs substrates.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102355"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and integration of sea urchin-like MnO2-GCN nanocomposite with imprinted polymers for mass-sensitive detection of chloramphenicol in water

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102357

Aysha Shaheen , Faryal Idrees , Faheem K. Butt , Adnan Mujahid , Adeel Afzal , Sami Ullah , Tayyaba Asim , Waheed S. Khan , Sadia Z. Bajwa

{"title":"Synthesis and integration of sea urchin-like MnO2-GCN nanocomposite with imprinted polymers for mass-sensitive detection of chloramphenicol in water","authors":"Aysha Shaheen , Faryal Idrees , Faheem K. Butt , Adnan Mujahid , Adeel Afzal , Sami Ullah , Tayyaba Asim , Waheed S. Khan , Sadia Z. Bajwa","doi":"10.1016/j.coco.2025.102357","DOIUrl":"10.1016/j.coco.2025.102357","url":null,"abstract":"<div><div>Overuse of antibiotics is associated with serious health concerns as common infections become harder to treat. This situation demands precise methods of antibiotic monitoring in complex mixtures. Chloramphenicol is a broad-spectrum antibiotic that was widely used to treat bacterial infections but because it is associated with serious side effects its use has been banned in many parts of the world. Detecting its presence in pharmaceuticals, food products, or biological samples is crucial for ensuring public health and safety. Being a broad-spectrum antibiotic it can also lead to the development of antibiotic-resistant bacteria. In this work, a novel mass-sensitive sensor is investigated to detect the presence of chloramphenicol in water samples. Sea urchin-like nanostructures of manganese dioxide and graphitic carbon nitride (MnO<sub>2</sub>-GCN) were designed. The nanocomposite consists of globules of about 500–700 nm with spikes of about 25–50 nm, spread all over the surface. This material was coated on a quartz crystal microbalance and further it was topped by a chloramphenicol imprinted polymer. The change in the basic frequency of this resultant device is related to the attachment and removal of chloramphenicol in the prepared interface. This sensor yielded a detection limit of 11 μM. The designed sensor proved almost 98–99 % specific to recognizing chloramphenicol as compared to thiamphenicol, florfenicol, and clindamycin. The developed sensor was successfully applied to determine chloramphenicol in water. The present study harbours the advantages of inherent specificity of imprinting technique and its utilization for the selective and specific detection of antibiotics.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102357"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Albumin fouling-free electrochemical sensors based on polyaniline single walled carbon nanotube composites for precise purine metabolomics

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102363

Thenmozhi Rajarathinam , Sivaguru Jayaraman , Devaraju Subramani , Suraj Aswale , Jaewon Lee , Hyun-jong Paik , Chang-Seok Kim , Jang-Hee Yoon , Seung-Cheol Chang

{"title":"Albumin fouling-free electrochemical sensors based on polyaniline single walled carbon nanotube composites for precise purine metabolomics","authors":"Thenmozhi Rajarathinam , Sivaguru Jayaraman , Devaraju Subramani , Suraj Aswale , Jaewon Lee , Hyun-jong Paik , Chang-Seok Kim , Jang-Hee Yoon , Seung-Cheol Chang","doi":"10.1016/j.coco.2025.102363","DOIUrl":"10.1016/j.coco.2025.102363","url":null,"abstract":"<div><div>Electrochemical sensors enable rapid and accurate detection of targets. However, fouling is a burden that restricts sensor performance in complex biofluids and fouling resistant or fouling-free property is paramount to guarantee the reliable operation of sensors. Single-walled carbon nanotubes (SWCNTs) possess an exceptional catalytic capability owing to the weak molecular adsorption of sp3 carbon. Poly(aniline-N-propane sulfonic acid) (PAPS) polymer dispersed SWCNTs with a high conductivity (4.184 S/cm), and hydrophilicity were prepared to circumvent the fouling issues. The length of the PAPS dispersed SWCNTs were 3.1 ± 1.0 μm and the modified screen-printed carbon electrodes (PAPS-SWCNTs/SPCEs) demonstrated efficient electro-oxidation of purines, such as, uric acid (UA), xanthine (XA), and hypoxanthine (HX) after exposure to high concentrations of a common foulant, serum albumin. The peak-to-peak separations of UA–XA, XA–HX, and UA–HX were 0.396 V, 0.352 V, and 0.748 V, respectively. The detection limits of UA, XA, and HX were 0.047, 0.049, and 0.052 μM respectively. The practical applicability of the sensor was established using human serum and synthetic urine samples. The fabricated sensor is fouling-free and could serve as a potential diagnostic device for the early detection of renal diseases, such as renal calculi, chronic kidney diseases, and renal failure in resource-limited settings, since it does not require scrupulous sample pretreatment, frequent recalibration or prolonged waiting times. Moreover, the developed sensor adheres to ASSURED criteria, which is crucial for the diagnosis of renal diseases in resource-limited settings.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102363"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scanning active microwave thermography for inspection of defects in bonded fiber reinforced polymer joints

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102352

Mengyao Li, Xingxing Zou

{"title":"Scanning active microwave thermography for inspection of defects in bonded fiber reinforced polymer joints","authors":"Mengyao Li, Xingxing Zou","doi":"10.1016/j.coco.2025.102352","DOIUrl":"10.1016/j.coco.2025.102352","url":null,"abstract":"<div><div>Defects at the adhesive layer of bonded fiber-reinforced polymer (FRP) joints can compromise their structural strength and ductility, necessitating effective non-destructive evaluation (NDE) method. This study proposes scanning active microwave thermography (AMT) as an efficient and rapid NDE technique to visualize interfacial defects at bonded FRP joints. First, multi-physics numerical simulations were conducted, which agrees well with experimental results in thermal response. The simulation demonstrated the formation of an electric field concentration at the specimen edges. Second, 14 bonded FRP joints with various defect shapes, sizes, locations, and plate thicknesses were tested under AMT. Tests show that AMT can effectively detect interfacial defects in FRP joints with a diameter greater than 5 mm when carbon FRP (CFRP) is facing the AMT energy. As a comparison, when glass FRP (GFRP) are facing the AMT energy, it cannot be heated by AMT but the defect can still be detected by AMT, though it is not clear and accurate, because the bottom layer CFRP can be heated, which well explained the edge effects observed in test. Finally, a scanning AMT system was developed and used to visualize the interfacial defects at bonded FRP joints in a continuous manner, which exhibits high efficiency – defects can be inspected at a speed of 20 mm/s.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102352"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration-microwave curing molding process of carbon fiber reinforced polymer composites

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102370

Dechao Zhang , Lihua Zhan , Bolin Ma , Shunming Yao , Xin Hu , Jinzhan Guo , Yuhan Yuan

{"title":"Vibration-microwave curing molding process of carbon fiber reinforced polymer composites","authors":"Dechao Zhang , Lihua Zhan , Bolin Ma , Shunming Yao , Xin Hu , Jinzhan Guo , Yuhan Yuan","doi":"10.1016/j.coco.2025.102370","DOIUrl":"10.1016/j.coco.2025.102370","url":null,"abstract":"<div><div>Carbon fiber reinforced polymer composites (CFRP) are widely used in aerospace applications due to their superior specific strength and stiffness. However, the autoclave curing process is hindered by long curing times and high energy consumption. To address these challenges, we propose an innovative vibration-microwave curing process and corresponding experimental platform. The interlaminar shear strength and the fiber/resin interface microscopic morphology of the specimens were characterized using a universal testing machine and scanning electron microscopy (SEM), with a comparative analysis against the autoclave curing process. Experimental results indicate interlaminar shear strengths of 70.25 MPa and 74.44 MPa, alongside a significant presence of scaly resin on the fiber surfaces, suggesting good fiber impregnation. These findings effectively validate the feasibility of the proposed curing process. This study introduces a novel method for out-of-autoclave composites curing, demonstrating significant potential for practical applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102370"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance magnetoelectric composite with low DC bias magnetic field for detecting ultra-weak magnetic field

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102371

Xueping Xu , Weiwei Wu , Tao Zhu , Menghan Pei , Xiaoyan Zhang , Qinkai Han

{"title":"High-performance magnetoelectric composite with low DC bias magnetic field for detecting ultra-weak magnetic field","authors":"Xueping Xu , Weiwei Wu , Tao Zhu , Menghan Pei , Xiaoyan Zhang , Qinkai Han","doi":"10.1016/j.coco.2025.102371","DOIUrl":"10.1016/j.coco.2025.102371","url":null,"abstract":"<div><div>Based on a piezoelectric layer of piezoelectric macro fiber composite (MFC) and a magnetostrictive layer of iron-based amorphous or nanocrystalline alloy, a flexible laminated magnetoelectric composite magnetic field sensor has achieved ultra-high sensitivity and the detection of ultra-weak magnetic fields. The magnetoelectric sensor of amorphous alloy with lower loss (ME-A) exhibits a response voltage. The ME-A sample's optimal DC bias magnetic field has a small value of 5.04 Oe, corresponding to the magnetoelectric voltage coefficient of 18.30 V/(cm‧Oe). In addition, the ME-A sensor exhibits excellent linear response characteristics to ultra-weak AC magnetic field as low as 1.90 × 10<sup>−5</sup> Oe at the optimal frequency of 20.50 kHz, with a sensitivity of up to 542 mV/Oe. Specifically, the ME-A sample provides real-time sensing of stepped magnetic field changes, achieving a detection resolution as low as 1.54 × 10<sup>−5</sup> Oe. The ME-A sensor successfully detects stray magnetic fields below 1.0 × 10<sup>−3</sup> Oe generated by motors at different speeds. Overall, ME-A laminated structure magnetoelectric composite with excellent magnetoelectric properties can achieve ultra-weak magnetic field detection and become a new generation of flexible magnetic field sensors.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102371"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance PDMS composite sensors utilizing strain-sensitive conductive networks

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102350

Rapisa Jarapanyacheep , Yan Chen , Feng Gao , Huiyong Li , Siyuan Zhou , Congying Wang , Yilun Liu , Luqi Liu , Hui Zhang

{"title":"High-performance PDMS composite sensors utilizing strain-sensitive conductive networks","authors":"Rapisa Jarapanyacheep , Yan Chen , Feng Gao , Huiyong Li , Siyuan Zhou , Congying Wang , Yilun Liu , Luqi Liu , Hui Zhang","doi":"10.1016/j.coco.2025.102350","DOIUrl":"10.1016/j.coco.2025.102350","url":null,"abstract":"<div><div>The fabrication of sensing materials frequently encounters challenges due to insufficient sensitivity and non-linear sensing behavior. To address these issues, we propose a novel strategy that employs thermally expanded microspheres (TEMs) to facilitate local-strain-concentration and straight fillers to construct a strain-sensitive conductive pathway. To achieve this, we prepared polymer-based composites by combining TEMs, conductive nanofillers (such as carbon nanofiber (CNF) and carbon nanotube (CNT)), and a polydimethylsiloxane (PDMS) matrix. Electrical characterization demonstrated that the inclusion of TEMs enhanced the conductivity of nanocomposites by promoting a more efficient conductive network. Electron microscopy further revealed the formation of segregated conductive networks surrounding TEMs particles. Strain sensing evaluations revealed a significant increase in sensitivity of the composites with the inclusion of TEM particles. Unlike the highly curved CNT, the straight morphology of the CNF, specifically the 1.50CNF/76TEMs/PDMS nanocomposite, exhibited a broad linear sensing range and superior sensitivity. It achieved a gauge factor (GF) of 32.7 (0 % < ε < 50 %) with good stability and durability over 10,000 cycles. Our findings will provide a valuable reference for the design of strain sensors with high sensitivity, linearity, low cost, and scalability for future applications in the realm of flexible electronics.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102350"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0