新型炭材料2021，Vol.36Issue(5)：949-960,12.DOI:10.1016/S1872-5805(21)60076-8
一步法"改性-分子焊接"制备石墨烯/聚酰亚胺复合薄膜及其热管理应用
One-pot modified "grafting-welding" preparation of graphene/polyimide carbon films for superior thermal management
摘要
Abstract
Thermalmanagementhasattractedmuchrecentattentionduetotherapiddevelopmentof5Gcommunicationandelec-tronic devices. Reduced GO/polyimide carbon (rGO/PI-carbon) films were prepared by a one-pot"grafting-welding"strategy, where GO was first grafted with amino groups using 1,3-bis(4-aminophenoxy) benzene, then polymerized with polyamic acid (PAA) and pyromellitic dianhydride to connect the GO sheets, before carbonization and graphitization. The rGO/PI film with a mass ratio of GO to PAA of 7％exhibits an increase in in-plane thermal conductivity (1102 W(m·K)?1) of 48.92％compared with the rGO film. It also has a superior bending performance and survives 2000 bend cycles with a small radius test while suffering an electrical resist-ance increase of less than 10％. Grafting-welding of rGO with PI carbon produces effective paths for phonon transport between the graphene sheets, reducing phonon scattering, which makes it a candidate for thermal interface materials for heat dissipation.关键词
氧化石墨烯改性/原位聚合/聚酰亚胺/石墨烯复合薄膜/散热Key words
Modification of GO/In-situ polymerization/Polyimide/Graphene composite film/Thermal dissipating performance分类
通用工业技术引用本文复制引用
李昊亮,吴限,程奎,朱默涵,王柳思,喻洪流,杨俊和..一步法"改性-分子焊接"制备石墨烯/聚酰亚胺复合薄膜及其热管理应用[J].新型炭材料,2021,36(5):949-960,12.基金项目
上海市青年科技英才扬帆计划(20YF1432100) （20YF1432100）
上海市科技创新项目(19JC1410400) （19JC1410400）
上海市教育委员会创新项目(2019-01-07-00-07-E00015).The authors are thankful to Shanghai Sailing Pro-gram(20YF1432100),Shanghai Scientific and Tech-nological Innovation Project(19JC1410400)and In-novation Program of Shanghai Municipal Education Commission(2019-01-07-00-07-E00015)for their financial supports to this study. （2019-01-07-00-07-E00015）
