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Pi HJ, Liu XX, Liao JY, Zhou YY, Meng C. Lightweight Polyethylene/Hexagonal Boron Nitride Hybrid Thermal Conductor Fabricated by Melt Compounding Plus Salt Leaching. Polymers (Basel) 2022; 14:polym14050852. [PMID: 35267675 PMCID: PMC8912592 DOI: 10.3390/polym14050852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
Application of porous polymeric materials is severely limited by their ultralow thermal conductivities. Herein, by promoting the formation of thermal conduction pathways, we fabricated open-cellular structured polyethylene/hexagonal boron nitride hybrid thermal conductors via melt compounding plus salt leaching. The structural analyses indicate that the inclusion of hBN can enhance the open-cell level of resultant materials. X-ray diffractions confirm the high in-plane alignments of hBN in each sample. Consequently, the test results evidence the superior thermal conductivities of our samples, and the thermal conductivities of each sample are characterized as functions of hBN loadings. Ultimately, our advanced porous thermal conductor with a low hBN loading of 3.1 vol% exhibits a high specific thermal conductivity of 0.75 (W/mk)/(g/cm3), which is 82.9% higher than virgin PE and far higher than bulk PE/hBN composites. Our work also intends to reveal the architectural advantages of open-cellular, as compared with the close-one, in fabricating porous materials with highly interconnected fillers.
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Affiliation(s)
- He-Jie Pi
- College of Urban and Environment Sciences, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China; (H.-J.P.); (Y.-Y.Z.); (C.M.)
- Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
- Hunan Key Laboratory of Water Safety Discharge in Urban and Its Resource Utilization, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
| | - Xiao-Xiao Liu
- School of Advanced Manufacturing Technology, Guangdong Mechanical & Electrical Polytechnic, Guangzhou 510550, China
- Correspondence: (X.-X.L.); (J.-Y.L.)
| | - Jian-Yu Liao
- College of Urban and Environment Sciences, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China; (H.-J.P.); (Y.-Y.Z.); (C.M.)
- Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
- Hunan Key Laboratory of Water Safety Discharge in Urban and Its Resource Utilization, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
- Correspondence: (X.-X.L.); (J.-Y.L.)
| | - Yue-Yun Zhou
- College of Urban and Environment Sciences, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China; (H.-J.P.); (Y.-Y.Z.); (C.M.)
- Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
- Hunan Key Laboratory of Water Safety Discharge in Urban and Its Resource Utilization, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
| | - Cong Meng
- College of Urban and Environment Sciences, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China; (H.-J.P.); (Y.-Y.Z.); (C.M.)
- Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
- Hunan Key Laboratory of Water Safety Discharge in Urban and Its Resource Utilization, Hunan University of Technology, 88 Taishan Road, Zhuzhou 412007, China
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Elaboration of porosity for the alumina particle surfaces/ bimodal
PP
composite cast films under continuous stretching. J Appl Polym Sci 2021. [DOI: 10.1002/app.50842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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