石墨烯
碳纳米管
材料科学
复合材料
聚氨酯
纳米纤维
纤维素
碳纳米纤维
化学工程
纳米技术
工程类
作者
Xiaoyue Huang,Ya Mo,W. Ming D. Wu,M. H. Ye,Chuanqun Hu
出处
期刊:Processes
[MDPI AG]
日期:2024-09-06
卷期号:12 (9): 1913-1913
摘要
With the rapid advancement of the flexible electronics industry, there is an urgent need to enhance the mechanical properties and thermal stability of flexible electronic devices to expand their range of applications. To address this need, flexible conductive composites have been developed using waterborne polyurethane (WPU) as the matrix, carbon nanotubes (CNTs) and graphene (GA) as conductive fillers, and incorporating cellulose nanofibers (CNFs). The carbon fillers create a conductive and thermal conductivity network within the matrix, while the presence of CNFs improves the dispersion of CNTs and GA, thereby enhancing the overall network structure. The resulting WGNF composites exhibit a resistivity of up to 1.05 × 104 Ω·cm, a tensile strength of 26.74 MPa, and a thermal conductivity of 0.494 W/(m·K). This demonstrates that incorporating cellulose offers an effective solution for producing high-performance polymeric conductive and thermally conductive composites, showing promising potential for flexible wearable devices.
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