Integration of carbon quantum dots with thermoplastic polyurethane for flexible and human-comfortable composite membrane

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-03-26 DOI:10.1016/j.diamond.2025.112245

Wei Chen , Xiuchuan Jing , Zhuang Li , Haiqing Miao , Zhong Wang

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Abstract

In this study, the carbon quantum dots/thermoplastic polyurethane (CQDs/TPU) flexible composite film is prepared by solvent and electrospinning methods. The effects of CQDs concentrations on the microstructure, mechanical property, breathable moisture-permeable property, and sensing performance of the composite films are investigated. Results show that the composite film prepared by solvent method has a large strain range, and its sensitivity increases with strain, but exhibits poor breathable moisture-permeable property and linearity. The fibers inside the electrospinning composite membrane are arranged in a staggered manner to form a good three-dimensional conductive network. As the concentration of CQDs increases, the tensile strength at break gradually decreases and the tensile strength at break gradually increases. The composite film has good breathability and moisture permeability, with a maximum air permeability of 2.44 L/(m²·s). The electrospinning method composite film has a smaller strain range but high sensitivity with a GF value of up to 53.3, better linearity, superior breathable moisture-permeable property and 4.67 times of air permeability compared to the composite film by solvent method.

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.