Hierarchically Porous MXene/Carbon Nanotube/Epoxy Composites for Effective Electromagnetic Interference Shielding and Flame Retardancy
Source abstract
Abstract
Designing a functional filler in a polymer matrix for effective electromagnetic interference (EMI) shielding and flame retardancy is of great importance in electronic devices. Achieving optimized distribution of fillers in polymer to build a conductive network for EMI shielding and intact barrier for flame retardancy is still a great challenge since the reported fillers usually exist as a disorder or even aggregation state. Herein, a porous carbon nanotube (CNT) bridged MXene (MXene/CNT) skeleton with electrical continuity and barrier integrity was designed by using a facile freeze-drying method. Benefiting from the rich hierarchical pores and excellent conductivity of MXene/CNT, the obtained MXene/CNT supported epoxy (EP) composite exhibits an effective EM shielding value of 34.7 dB. Furthermore, the EP composite shows improved flame retardancy than pure EP. Specifically, compared to pure EP, the EP composite with a low content of MXene/CNT (1.7 wt %) shows a decreased heat release rate (19.17%), smoke production rate (22.73%), CO production rate (25.21%) and CO 2 production rate (21.26%). This promising strategy provides a way to fabricate other advanced polymer composites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Flame retardant materials and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China
Baoding University, Baoding 071002, China
Hebei Provincial Center for Optical Sensing Innovations, College of Physics Science & Technology, Hebei University, Baoding 071002, China
Funding
the Science and Technology Research Project of Higher Education in Hebei Province · the Multidisciplinary Research Project of Hebei University · the Natural Science Foundation of Hebei Province · the National Natural Science Foundation of China · the Innovation Ability Cultivation Funding Project of Graduate Student in Hebei Province
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