@article{Meng2026, 
author = {Xiangqi Meng and Jing Wu and Yawei You and Yulin Han and Chao Hu and Nan Liu and Zhongfan Liu},
title = {Graphene-skinned welded glass fiber felt for anisotropic thermal management},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {10},
pages = {94908609},
keywords = {graphene-skinned welded glass fiber felt (Gr-wGFF), anisotropic thermal conductivity, plasma-enhanced chemical vapor deposition (PECVD), junction welding},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908609},
doi = {10.26599/NR.2026.94908609},
abstract = {Materials that can deliver in-plane heat diffusion and through-plane thermal insulation are essential for thermal management in extreme environments. However, integrating these opposing functions into a single material remains highly challenging because thermal conduction and insulation are inherently contradictory. Here, we report an anisotropic graphene-skinned welded glass fiber felt (Gr-wGFF) produced through a one-step process that couples the in situ growth of vertically aligned graphene nanosheets on glass fibers by plasma-enhanced chemical vapor deposition (PECVD) with the concurrent thermal welding of fiber junctions. This approach generates a continuous and covalently bonded thermal transport network at an ultralow graphene content (~0.86 wt.%), thereby overcoming the high percolation threshold commonly encountered in conventional composites. The resulting structure exhibits pronounced anisotropy: at an areal density of 430 g·m−2, the Gr-wGFF achieves an in-plane thermal conductivity of 1.6 W·m−1·K−1 and a through-plane conductivity of 0.2 W·m−1·K−1, corresponding to an anisotropy ratio of 8. When embedded into a phenolic resin (PR) matrix, the composite maintains high thermal anisotropy with good mechanical strength and flame retardancy. This multifunctional integration offers a solution for advanced thermal-structural applications in extreme environments.}
}