检索结果-南通市图书馆

self-healing MXene-and Graphene-Based Composites:Properties and Applications

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2023年第7期15卷 165-192页

作者： Atefeh Zarepour Sepideh Ahmadi Navid Rabiee Ali Zarrabi Siavash Iravani Department of Biomedical Engineering Faculty of Engineering and Natural SciencesIstinye University34396 IstanbulTürkiye Department of Medical Biotechnology School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehran 19857-17443Iran Cellular and Molecular Biology Research Center Shahid Beheshti University of Medical SciencesTehran 19857-17443Iran Centre for Molecular Medicine and Innovative Therapeutics Murdoch UniversityPerthWA 6150Australia School of Engineering Macquarie UniversitySydneyNSW 2109Australia Faculty of Pharmacy and Pharmaceutical Sciences Isfahan University of Medical SciencesEsfahān 81746-73461Iran

Today,self-healing graphene-and MXene-based composites have attracted researchers due to the increase in durability as well as the cost reduction in long-time *** studies have focused on designing novel self-healing graphene-and MXenebased composites with enhanced sensitivity,stretchability,and flexibility as well as improved electrical conductivity,healing efficacy,mechanical properties,and energy conversion *** composites with self-healing properties can be employed in the field of wearable sensors,supercapacitors,anticorrosive coatings,electromagnetic interference shielding,electronic-skin,soft robotics,***,it appears that more explorations are still needed to achieve composites with excellent arbitrary shape adaptability,suitable adhesiveness,ideal durability,high stretchability,immediate self-healing responsibility,and outstanding electromagnetic ***,optimizing reaction/synthesis conditions and finding suitable strategies for functionalization/modification are crucial aspects that should be comprehensively *** and graphene exhibited superior electrochemical properties with abundant surface terminations and great surface area,which are important to evolve biomedical and sensing ***,flexibility and stretchability are important criteria that need to be improved for their future ***,the most recent advancements pertaining to the applications and properties of self-healing graphene-and MXene-based composites are deliberated,focusing on crucial challenges and future perspectives.

关键词： MXenes Graphene self-healing materials Electromagnetic interference shielding Wearable sensors

High-strength,stretchable,and NIR-induced rapid self-healing polyurethane nanocomposites with bio-inspired hybrid crosslinked network

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第7期17卷 6353-6361页

作者： Tianbo Deng Junyuan Zhu He Zhao Binbin Xu Ling Zhang Chunzhong Li Key Laboratory for Ultrafine materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Materials Science and EngineeringEast China University of Science&TechnologyShanghai 200237China

Stretchable and self-healable materials with excellent mechanical performance hold great promise for applications in flexible functional *** rapid developments,achieving high mechanical strength,extreme stretchability,and rapid selfhealing capability in self-healing materials remains ***,inspired by the hierarchical structure and unique network of connective tissue,we fabricated a class of bionic nanocomposites with high stretchability,outstanding mechanical strength,and rapid self-healing ability by integrating the bottlebrush copolymer functionalized graphene oxide(BCP@GO)into a polyurethane(PU)matrix via in-situ *** bottlebrush copolymer(BCP)acted as a bond bridge for linking the GO nanosheets(noncovalent interaction)and PU chains(covalent and hydrogen-bond interaction).The covalent interactions were responsible for providing high mechanical strength,and the abundant hydrogen-bond-based cross-links realized extreme stretchability and rapid self-healing *** resultant BCP@GO/PU nanocomposite with only 0.5 wt.%GO loading exhibited excellent mechanical properties(tensile strength increased by 52.1%,up to 28.6 MPa;toughness increased by 70.8%,up to 256.9 MJ/m^(3);elongation at break increased by 12.8%,up to 1847.2%),exceptional rapid and efficient self-healing ability(~99%with 20 s NIR irradiation),as well as superior shape memory and recyclable *** study develops a new strategy for designing highperformance self-healing nanocomposites and unfolds broad application prospects in smart materials.

关键词： self-healing materials smart nanocomposite high mechanical property shape memory recyclability

self-healing and highly elastic fluorine-free proton exchange membranes comprised of poly(vinyl alcohol) derivative and phytic acid for durable fuel cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China materials 2020年第7期63卷 1235-1246页

作者： Yixuan Li Zhengxuan Li Wenjie Wang Junqi Sun State Key Laboratory of Supramolecular Structure and materials College of ChemistryJilin UniversityChangchun 130012China

Fluorine-free proton exchange membranes(PEMs)capable of healing from physical damage are important for PEM fuel cells(PEMFCs)with extended service life and enhanced ***,highly elastic fluorine-free PEMs with excellent self-healing ability and high proton conductivity are fabricated through complexation of phytic acid(PA)with sulfonated polyvinyl alcohol(SPVA),followed by subsequent grafting of SPVA with positively charged 4-(1H-imidazol-1-yl)benzenecarbaldehyde(IBZ).Compared with recast Nafion membranes,the as-prepared SPVA-IBZ/PA membranes exhibit an enhanced mechanical strength and elasticity and can spontaneously recover from a^50%strain to their initial states within^30 s at room ***,the SPVA-IBZ/PA membranes have a proton conductivity of^0.095 S cm-1at^70°C,which is higher than that of recast Nafion *** hydrogen-powered PEMFCs using the SPVA-IBZ/PA membranes,which show an open circuit voltage of^0.98 V and maximum power density of^609 mW cm-2,exhibit a satisfactory cell ***,the SPVA-IBZ/PA membranes can spontaneously heal mechanical damage of several tens of micrometers in size and restore their original proton conductivity and cell performance under the working conditions of PEMFCs.

关键词： proton exchange membranes self-healing materials proton conduction fuel cells supramolecular materials

Polymeric materials reinforced by noncovalent aggregates of polymer chains

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Aggregate

Aggregate 2021年第5期2卷 45-61页

作者： Xiaokong Liu Junqi Sun State Key Laboratory of Supramolecular Structure and materials College of ChemistryJilin UniversityChangchunP.R.China

Mechanical performances are among the most fundamental properties that dictate the applicability and durability of polymeric *** of polymeric materials is eternally pursued to broaden the applications of polymers with light-weight,low-cost and easy-processing *** aggregates of biomacromolecules have been found to play a significant role in the mechanical properties of many natural materials,such as the spider *** numbers of reports have demonstrated that the in situ formed noncovalent aggregates of polymer chains in polymeric systems are highly effective for enhancing the mechanical properties of artificial polymeric materials,in terms of strength,stiffness,toughness,and/or *** in situ formed noncovalent aggregates act as additional crosslinking domains and well-dispersed“hard”nanofillers in the polymer networks,significantly strengthening,stiffening and/or toughening the polymeric ***,the noncovalent crosslinking of polymer chains favors the development of healable and recyclable polymeric materials,thanks to the reversible and dynamic properties of noncovalent *** review provides an overview of the recent advances on the enhancement of the mechanical properties of different polymeric materials by the in situ formed noncovalent aggregates of polymer *** is expected to arouse inspirations for the development of novel polymeric materials with extraordinary mechanical performances and functionalities.

关键词： aggregates noncovalent bonds polymeric materials self-healing materials supramolecular materials

Dual Nanofillers-Reinforced Noncovalently Cross-Linked Polymeric Composites with Unprecedented Mechanical Strength

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CCS Chemistry 2023年第10期5卷 2312-2323页

作者： Ni An Youliang Zhu Xiaohan Wang Yixuan Li Junjun Liu Xu Fang Zhongyuan Lu Bai Yang Junqi Sun State Key Laboratory of Supramolecular Structure and materials College of ChemistryJilin UniversityChangchun 130012 Joint Laboratory of Opto-Functional Theranostics in Medicine and Chemistry The First Hospital of Jilin UniversityChangchun 130021 Department of Hand and Foot Surgery The First Hospital of Jilin UniversityJilin UniversityChangchun 130031

Noncovalentlycross-linkedpolymermaterials through healing,recycling,and reprocessing can reduce materials consumption and alleviate environmental ***,it remains a huge challenge to fabricate super-strong noncovalently cross-linked polymer materials with mechanical strength comparable to high-performance engineering ***,healable and reprocessable noncovalently cross-linked polymer compositeswith an unprecedented mechanical strength are fabricated by complexation of polyacrylic acid(PAA),polyvinylpyrrolidone(PVPON),and carbonized polymer dots(CPDs)(denoted as PAA-PVPON-CPDs).The incorporation of 15 wt%CPDs generates PAA-PVPON-CPDs compositeswith a tensile strength of∼158 MPa and Young’s modulus of∼*** nanofillers,theCPDs can establish strong interactions with polymers in PAA-PVPON *** CPDs and the in situ-formed PAAPVPON nanoparticles work in concert to significantly strengthen the PAA-PVPON-CPDs composites to an unprecedented *** PAA-PVPON-CPDs composites exhibit excellent impact resistance and damage tolerance because of the high mechanical strength of the composites and the energy dissipation mechanism of the CPDs and PAA-PVPON ***,the fractured PAA-PVPON-CPDs composites can be healed to restore their original mechanical strength.

关键词： carbonized polymer dots noncovalently cross-linked polymers supramolecular polymers self-healing materials

Smart dielectric materials for next-generation electrical insulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

iEnergy

iEnergy 2022年第1期1卷 19-49页

作者： Xiaoyan Huang Lu Han Xiao Yang Zhiwen Huang Jun Hu Qi Li Jinliang He State Key Laboratory of Power System Department of Electrical EngineeringTsinghua UniversityBeijing 100084China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing 102206China

Smart dielectric materials with bioinspired and autonomous functions are expected to be designed and fabricated for nextgeneration electrical *** to organisms,such dielectrics with selfadaptive,selfreporting,and selfhealing capabilities can be employed to avoid,diagnose,and repair electrical damage to prevent catastrophic failure and even a *** with traditional dielectrics,the utilization of smart materials not only increases the stability and durability of power apparatus but also reduces the costs of production and *** this review,researches on selfadaptive,selfreporting,and selfhealing dielectrics in the field of electrical insulation,and illuminating studies on smart polymers with autonomous functions in other fields are both *** principles,methods,mechanisms,applications,and challenges of these materials are also briefly presented.

关键词： Bioinspired materials next-generation dielectrics self-adaptive materials self-reporting materials self-healing materials

Highly Stretchable,Elastic,Healable,and Ultra-Durable Polyvinyl Alcohol-Based Ionic Conductors Capable of Safe Disposal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CCS Chemistry 2022年第9期4卷 3170-3180页

作者： Siheng Li Yixuan Li Yuting Wang Hongyu Pan Junqi Sun State Key Laboratory of Supramolecular Structure and materials College of ChemistryJilin UniversityChangchun 130012

Highly durable and stretchable ionic conductors are indispensable components of flexible ***,fabricating such ionic conductors that are also non-toxic and biodegradable remains a *** this study,highly stretchable,elastic,healable,and ultra-durable ionic conductors capable of non-hazardous disposal are conveniently fabricated by complexation of vanillin-grafted polyvinyl alcohol(VPVA)and ionic liquids(ILs)(denoted as VPVA-IL).

关键词： ionic conductors self-healing materials ionogels supramolecular materials

Dynamic Polymeric materials Bearing Hindered Urea Bonds（HUB）

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dynamic Polymeric Materials Bearing Hindered Urea Bonds（HUB...