Surfaces and Interfaces
·
2025
·
IF 6.3
Dengxun Ren,Xiaobo Liu,Mingzhen Xu,Xianzhong Tang
Iron phthalocyanine (FePc) with self-assemble properties was used to construct microstructures on carbon fiber (CF). Morphology, roughness and wettability of modified CF were characterized. Then, poly(arylene ether nitriles) (PEN) was chosen to fabricate CF reinforced composites and the interfacial compatibility of composites was investigated by SEM and their viscoelastic properties. Rheological properties including linear viscoelastic region, storage/loss modulus, and viscosity were investigated. Besides, dynamic mechanical properties of the composites were studied under different frequency and the apparent activation energy of glass transition was calculated. Results showed that using a proper PEN solution concentration to impregnate FePc microstructures modified CF could help to form better mechanical interlocking on interface. Besides, influence of shape, size and density microstructures on forming mechanical interlocking was studied and discussed. Results revealed that granule-like microstructures, reducing the size of microstructure, and decreasing the distance between microstructures were benefit to forming better mechanical interlocking on interface. Based on the researches, mechanism of improved interfacial compatibility through forming mechanical interlocking was proposed and the interlaminar shear strength (ILSS) of the composites were studied.
研究领域:
材料科学
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复合材料
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产品关联
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2023
·Vol. 29
·期 59
·e202302132
·
IF 4.3
Jun-Tao Shi,Xian-Hui Chen,Yuan-Yuan Peng,Gui-Ping Wang,Guang-Yan Du,Quan Li
Graphical A novel mechanically bonded amphiphile (MBA)-bistable [2]rotaxane H2 was designed and prepared. In both the solution and aggregated states, H2 demonstrated pH-responsive emissions due to the presence of a distance-dependent photoinduced electron transfer (PET) process. Moreover, the morphology of H2 aggregates can be tuned from nanospheres to vesicles due to the pH-controlled shuttling motion-induced alternation of H2 amphiphilicity. Advanced Organic Chemical Materials Co-constructed Mechanically bonded amphiphiles (MBAs), also known as mechanically interlocked molecules (MIMs), have emerged as an important kind of functional building block for the construction of artificial molecular machines and soft materials. Herein, a novel MBA, i. e., bistable [2]rotaxane H2 was designed and synthesized. In the solution state, H2 demonstrated pH and metal ion-responsive emissions due to the presence of a distance-dependent photoinduced electron transfer (PET) process and the fluorescence resonance energy transfer (FRET) process, respectively. Importantly, the amphiphilic feature of H2 has endowed it with unique self-assembly capability, and nanospheres were obtained in a mixed H 2 O/CH 3 CN solvent. Moreover, the morphology of H2 aggregates can be tuned from nanospheres to vesicles due to the pH-controlled shuttling motion-induced alternation of H2 amphiphilicity. Interestingly, larger spheres with novel pearl-chain-like structures from H2 were observed after adding stoichiometric Zn 2+ . In particular, H2 shows pH-responsive emissions in its aggregation state, allowing the visualization of the shuttling movement by just naked eyes. It is assumed that the well-designed [2]rotaxane, and particularly the proposed concept of MBA shown here, will further enrich the families of MIMs, offering prospects for synthesizing more MIMs with novel assembly capabilities and bottom-up building dynamic smart materials with unprecedented functions.
研究领域:
有机化学
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材料科学
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超分子化学
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
·
2023
·
IF 3.4
Xin Gao,Jiayong Gao,Jiaqi Li,Gaozhe Liu,Heng Zhang,Xiaoning Tang,Lincai Peng,Keli Chen
The development of cellulose-substrate remedies remains a technological challenge owe to their inability to self-heal and excessive dependence on petroleum-based adhesives, which is further hindered by the significant drawbacks of commercially unavailable welding materials and inconvenient manipulation. We herein describe a cellulose-substrate bonding technique achieved through partial dissolution using a low dosage of ZnCl 2 aqueous solvent (ZS) and its dissolved cellulose (ZDC) gel as adhesives. This method demonstrates strong joint areas between strips without any failure, while shrinkage in the diffusion area remains the main cause of breakage. This shrinkage phenomenon can be alleviated by using ZDC instead of ZS, due to the water retention of hydrophilic hydroxyls on the macromolecular chains of dissolved cellulose . The well-maintained tensile strength of the ZDC-bonded strip (5.0% lower than the control) indicates that partially dissolved cellulose fills gaps between fibers, providing evidence for a mechanical interlocking adhesive mechanism in strip connections. ZDC gels exhibit favorable adhesive behavior for hand-sheets, art paper, and corrugated board, with welded joints demonstrating robust mechanical performance even after soaking in water for 6 h.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Shengping Dai,Jingping Yao,Longhua Zeng,Jinlong Shuai,Yan Zhong,Hongmei Chen,Cheng Liu,Wentong Chen,Yan Sui
High bonding strength and adhesion stability performance adhesives are essential for many fields, including electronic packaging, and interface bonding, etc. However, ultra-high and stable adhesion imposes higher requirements on the structure and properties of soft adhesives. Herein, A ultra-high adhesion, adhesion stability performance soft adhesive was developed by soft polyurethane foam. PuFA x (polyurethane foam adhesive) demonstrated outstanding flexibility (maximum compressive strength of 62.86 kPa), and ultra-high adhesion strength (up to 81.42 MPa for Cu). The gas generated by the physical foaming of PuFA x serves as an internal driving force, facilitating the formation of a mechanical interlocking structure between the polyurethane chains and the substrates. Thus, it forms a synergistic effect with chemical coupling, further enhancing the bonding strength. In terms of environmental adaptability, PuFA x exhibited excellent solvent-resistant adhesion stability performance under harsh conditions, including exposure to solvents such as DMSO, CH 2 Cl 2 , C 2 H 5 OH, HCl, NaOH, NaCl, and H 2 O. Furthermore, PuFA x demonstrated outstanding stable adhesion properties even in high-temperature aqueous solutions with a temperature as high as 100 °C and throughout a prolonged aging process that can extend up to 12 months. The design strategy of PuFA x provided a new way to develop an outstanding soft adhesive candidate with ultra-high and stable adhesion.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2019
·
IF 4.046
Yuming Xie,Yongxian Huang,Xiangchen Meng,Junchen Li,Jian Cao
Lap joints between aluminum and beech ( Fagus longipetiolata ) were obtained via friction stir spot welding with Nylon-66 intermediate layers. The polymer layer was introduced to form sandwich structures, which induced mechanical interlocking through infiltrating into the rough surface and formed chemical bonding via C-O-Al bonds. Wood degradation and residual stress were downgraded due to the buffering of the polymer layer. The maximum tensile shear strength with Φ12 mm circular lap area was 11.2 MPa, indicating that friction stir spot welding with thermoplastic polymer intermediate layers has the potential to join metals and woods with high performances.
研究领域:
材料科学
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焊接工程
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 137
·期 37
·49577
·
IF 2.52
Xiang Chen,Haibing Xu,Dong Liu,Chun Yan,Youqiang Yao,Yingdan Zhu
Carbon fiber (CF) reinforced polyamide 6 (PA6) composite has an extensive application. However, the performances of CF/PA6 composite are constrained by the poor interfacial adhesion between CF and PA6 matrix. In this article, in order to strengthen the interfacial adhesion of CF/PA6 composite, a layer of poly(cyclotriphosphazene- co -4,4′-sulfonyldiphonel) (PZS) hybrid coating with plenty of PZS microspheres (PZSMS) was successfully introduced onto CF surface through facile in situ polymerization. After surface modification, the surface morphologies and the surface chemical structures of fibers changed distinctly. On one hand, the PZSMS provided more contact points and increased mechanical interlocking between CF and PA6 matrix. On the other hand, numerous hydrogen bonds between CF and PA6 were formed due to a great amount of unique polar groups on modified CF surface. Consequently, in comparison with untreated CF, the interfacial shear strength of CF-PZSMS/PA6 composites was improved from 37.68 ± 3.16 to 53.79 ± 3.38 MPa, by 42.75 ± 3.02%. The results indicated that PZS hybrid coating on fiber surface effectively improved the interfacial adhesion of CF/PA6 composites, and the stronger hydrogen bonding and the enhanced mechanical interlocking synergistically played a major role in such significant improvements.
研究领域:
材料科学
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复合材料工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 44
·24146-24157
·
IF 11.9
Yu Guo,Yinghui Shang,Bingqian Jiao,Yuting Guo,Yujing Tang,Saiji Shen,Dongbei Wu,Xia Wang,Wenju Li,Qigang Wang
Despite gel electrolytes' high ionic conductivity and appreciable mechanical softness making them promising candidates for flexible electronic devices (FEDs), preparing gel electrolytes which seamlessly interface with electrodes is still challenging, especially via rapid gelation. Inspired by cartilage, a mechanically interlocked and hydrogen bonded electrolyte–electrode interface (MHEEI) generated using an ultrafast gelation process via in situ interfacial polymerization of gelatin macromolecules and acrylamide monomers hybrid fluid is reported. A nanoporous carbon (NC) electrode favorable for polymer matrix embedding is employed to lock into the in situ gel electrolyte through a mechanical interlocking structure. Polyacrylamide chains inside the nanoporous electrode are strongly connected with gelatin chains via intra-intermolecular hydrogen bond interactions. Their synergy simultaneously imparts low contact resistance (1 Ω), high ionic conductivity (55.9 mS cm−1) and interfacial toughness of 16 J m−2 at MHEEI, which is 6.4 times greater than that obtained by a physical stacking approach. The NC electrode with MHEEI thus exhibits a specific capacitance of 336 F g−1 (at 8 A g−1), about 12 times greater than that of the electrode with MEEI. Additionally, an interrupted electronic circuit is instantly restored via ultrafast construction of interlocking layers. This concept can be demonstrated in other gel systems, providing generalized design principles for the ultrafast construction of interlocking structures for FEDs.
研究领域:
材料科学
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柔性电子器件
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储能技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yongjing Zhang,Shuai Wang,Yongju Gao,Meili Xia,Anh Tuan Hoang,Wenjing Guo,Fuqin Wu,Pengmin Liu,Duxia Cao,Songfang Zhao,Guoqiang Li,Yan Li,Huanyu Cheng,Jong-Hyun Ahn
Skin-like robust materials with prominent sensing performance have potential applications in flexible bioelectronics. However, it remains challenging to achieve mutually exclusive properties simultaneously including low interfacial impedance, high stretchability, sensitivity, and electrical resilience. Herein, a material and structure design concept of mixed ion-electron conduction and mechanical interlocking structure is adopted to fabricate high-performance mechanical-bioelectrical dual-modal composites with large stretchability, excellent mechanoelectrical stability, low interfacial impedance, and good biocompatibility. Flower-like conductive metal-organic frameworks (cMOFs) with enhanced conductivity through the overlapped level of metal-ligand orbital are assembled, which bridge carbon nanotubes (denoted as cMOFs- b -CNTs). Then, precursor of poly(styrene- block -butadiene -block -styrene)/ionic liquid penetrates the pores and cavities in cMOFs- b -CNTs-based network fabricated via filtration process, creating a semi-embedded structure via mechanical interlocking. Thus, the mixed ion-electron conduction and semi-embedded structure endow the as-prepared composites with a low interfacial impedance (51.60/28.90 kΩ at 10/100 Hz), wide sensing range (473%), high sensitivity (2195.29), rapid response/recovery time (60/85 ms), low limit of detection (0.05%), and excellent durability (>5000 cycles to 50% strain). Demonstrations of multifunctional mechanical-bioelectrical dual-modal sensors for in vivo/vitro monitoring physiological motions, electrophysiological activities, and urinary bladder activities validate the possibility for practical uses in biomedical research areas. This concept creates opportunities for the construction of durable skin-like sensing materials.
研究领域:
材料科学
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生物医学工程
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 21
·2301116
·
IF 15.1
Jianren Huang,Anbang Chen,Songjiu Han,Qirui Wu,Jundong Zhu,Jiayu Zhang,Yujia Chen,Jiantao Liu,Lunhui Guan
Soft strain gauges provide a flexible and versatile alternative to traditional rigid and inextensible gauges, overcoming issues such as impedance mismatch, the limited sensing range, and fatigue/fracture. Although several materials and structural designs are used to fabricate soft strain gauges, achieving multi-functionality for applications remains a significant challenge. Herein, a mechanically interlocked gel–elastomer hybrid material is exploited for soft strain gauge. Such a material design provides exceptional fracture energy of 59.6 kJ m −2 and a fatigue threshold of 3300 J m −2 , along with impressive strength and stretchability. The hybrid material electrode possesses excellent sensing performances under both static and dynamic loading conditions. It boasts a tiny detection limit of 0.05% strain, ultrafast time resolution of 0.495 ms, and high linearity. This hybrid material electrode can accurately detect full-range human-related frequency vibrations ranging from 0.5 to 1000 Hz, enabling the measurement of physiological parameters. Additionally, the patterned soft strain gauge, created through lithography, demonstrates superior signal–noise rate and electromechanical robustness against deformation. By integrating a multiple-channel device, an intelligent motion detection system is developed, which can classify six typical human body movements with the assistance of machine learning. This innovation is expected to drive advancements in wearable device technology.
研究领域:
材料科学
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生物医学工程
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Haiyan Feng,Song Wang,Kai Chen,Xinyue Zhang,Cunao Feng,Xiaowei Li,Weibo Yang,Dekun Zhang,Shirong Ge
Hydrogels with excellent mechanical and lubrication properties have been developed rapidly, laying the foundation for their application in cartilage replacement. However, the combination of robust hydrogels and substrates under different forms of movement is a great challenge. In addition, due to differences in modulus, the stress shielding effect caused by implantable artificial joint metal materials can lead to bone resorption. Here, we proposed to combine a 3D printed porous titanium alloy with a high-strength lubricating hydrogel to construct an integrated joint substitute material. The porous titanium alloy TC4 substrate constructed by 3D printing possesses a modulus similar to that of human bone. The strong bonding of the hydrogel and TC4 was achieved through two strategies: mechanical interlocking and chemical bonding. The combination of the alloy substrate and hydrogel realizes the construction of a bionic lubricating cartilage layer on the surface of traditional artificial joint materials. The hydrogel has excellent bonding properties with the porous substrate under different test conditions. Truly human-like joint sockets were prepared for the first time with soft–soft and soft–hard contact modes. Under conditions simulating human motion, the hydrogel maintains a low friction coefficient and still has excellent substrate adhesion after 100,000 cycles. This study further pushes the application of hydrogels in biolubrication into practice.
研究领域:
材料科学
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生物医学工程
·
组织工程
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2023
·Vol. 30
·期 4
·1-10
·
IF 2.8
Li Yue,Zhao Xiaowen,Ye Lin
For improving interfacial interactions of Epoxy (EP)/carbon fiber (CFs) composites (CFRP), CFs were oxidized, while grapheme oxide (GO) layer was successfully grafted onto CFs surface through bridging effect of polydopamine (PDA) to obtain GO@PDA@CF hybrids, forming rough surface structure of CFs. The smaller epoxy contact angle of GO@PDA@OCFs indicated improving wettability between CFs/EP, while more and bigger EP fragments remained on interlaminar shear fracture surfaces, and CFs were embedded in matrix without obvious gap, indicating significantly enhanced interfacial bonding of composites by forming mechanical interlocking structure. The interfacial strength of composites was thus improved via effective transfer of stress between matrix-fiber at interface.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
·
2025
·
IF 5
Peilin Cao,Jiahua He,Cong Wang,Kaiwen Ding,Yulong Ding,Dejin Yan,Nai Lin,Ji’an Duan
The reliability of the sapphire-metal joint technology in electronic devices determines its performance for industrial applications. Hence, we propose a method to enhance the connection strength between sapphire and metal based on micro-nanostructures on the substrate surface fabricated by femtosecond laser technology. The micro-nano modification of the substrate surface effectively improves the wettability of the silver paste, contributing to the spreading of the solder. The influence of different substrate surface morphologies on the joint strength is also investigated. It is found that the Cu/ sapphire substrate with cone microstructure arrays has the highest joint strength, reaching 27.2 MPa at a sintering temperature of 300 °C, which is about 4 times increase compared to the flat substrate (7.3 MPa). Further, the effect of different sintering parameters on the joint strength of the cone-structured array substrate is studied. The morphology of the cross-section and shear damage surfaces for connecting structures is analyzed, revealing that the mechanism of interface strength enhancement is mechanical interlocking. This fabrication of micro-nanostructures on substrate surfaces by femtosecond lasers provides a simple and efficient approach for the high-performance joining of ceramics and metals.
研究领域:
材料科学
·
连接技术
·
表面工程
·
微纳制造
·
电子封装
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）