DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sequential Dual Alignments Introduce Synergistic Effect on Hexagonal Boron Nitride Platelets for Superior Thermal Performance

Journal Article · · Advanced Materials
 [1]; ORCiD logo [2];  [1];  [1];  [1];  [1];  [3];  [4];  [5];  [1]; ORCiD logo [1]
  1. Univ. of Florida, Gainesville, FL (United States)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. Savannah River National Laboratory (SRNL), Aiken, SC (United States)
  4. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  5. Clemson Univ., SC (United States)

Planarly aligning 2D platelets is challenging due to their additional orientational freedom compared to 1D materials. Here, this study reports a sequential dual-alignment approach, employing an extrusion-printing-induced shear force and rotating-magnetic-field-induced force couple for platelet planarly alignment in a yield-stress support bath. It is hypothesized that the partial alignment induced by a directional shear force facilitates subsequent axial rotation of the platelets for planar alignment under an external force couple, resulting in a synergistic alignment effect. This sequential dual-alignment approach achieves better planar alignment of 2D modified hexagonal boron nitride (mhBN). Specifically, the thermal conductivity of the 40 wt% mhBN/epoxy composite is significantly higher (692%) than that of unaligned composites, surpassing the cumulative effect of individual methods (only 133%) with a 5 times more synergistic effect. For 30, 40, and 50 wt% mhBN composites, the thermal conductivity values (5.9, 9.5, and 13.8 W m–1 K–1) show considerable improvement compared to the previously reported highest values (5.3, 6.6, and 8.6 W m–1 K–1). Additionally, a 3D mhBN/epoxy heat sink is printed and evaluated to demonstrate the feasibility of device fabrication. The approach enables the planar alignment of electrically or thermally conducting 2D fillers during 3D fabrication.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-76RL01830; SC0023389
OSTI ID:
2425933
Report Number(s):
PNNL-SA--196277
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 25 Vol. 36; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (62)

Actuating Soft Matter with Magnetic Torque journal April 2016
Graphene Sheets: Planar Alignment of Graphene Sheets by a Rotating Magnetic Field for Full Exploitation of Graphene as a 2D Material (Adv. Funct. Mater. 46/2018) journal November 2018
Electronic and Optical Properties of 2D Transition Metal Carbides and Nitrides (MXenes) journal November 2018
Structure, Properties and Applications of Two‐Dimensional Hexagonal Boron Nitride journal September 2021
Hexagonal Boron Nitride for Next‐Generation Photonics and Electronics journal December 2022
Polymer/Boron Nitride Nanocomposite Materials for Superior Thermal Transport Performance journal May 2012
Boron Nitride Nanomaterials for Thermal Management Applications journal February 2015
Image‐based quantification of fiber alignment within electrospun tissue engineering scaffolds is related to mechanical anisotropy journal March 2016
Recent Advances in Boron Nitride Based Hybrid Polymer Nanocomposites journal August 2021
Influence of particulate surface treatment on physical, mechanical, thermal, and dielectric behavior of epoxy/hexagonal boron nitride composites journal December 2019
Fabrication of Highly Oriented Hexagonal Boron Nitride Nanosheet/Elastomer Nanocomposites with High Thermal Conductivity journal November 2014
Thermal and mechanical properties of 3D printed boron nitride – ABS composites journal November 2017
3D printing of highly flexible, cytocompatible nanocomposites for thermal management journal January 2021
Fluidity and high thermal conductivity of gutta-percha composites increased by two-dimensional boron nitride and rod-like ZnO for root canal therapy journal May 2022
Ultra-high thermal-conductive, reduced graphene oxide welded cellulose nanofibrils network for efficient thermal management journal December 2020
Filler orientation of boron nitride composite via external electric field for thermal conductivity enhancement journal May 2016
Enhanced through-plane thermal conductivity of boron nitride/epoxy composites journal July 2017
Improved thermal conductivity of thermoplastic polyurethane via aligned boron nitride platelets assisted by 3D printing journal May 2019
Nacre-inspired polymer composites with high thermal conductivity and enhanced mechanical strength journal June 2019
Constructing fibrillated skeleton with highly aligned boron nitride nanosheets confined in alumina fiber via electrospinning and sintering for thermally conductive composite journal April 2021
Facile preparation of a polysiloxane-based hybrid composite with highly-oriented boron nitride nanosheets and an unmodified surface journal October 2010
Exfoliated hexagonal boron nitride-based polymer nanocomposite with enhanced thermal conductivity for electronic encapsulation journal January 2014
Polymer composite with enhanced thermal conductivity and mechanical strength through orientation manipulating of BN journal May 2018
High-strength epoxy nanocomposites for 3D printing journal May 2018
Hot-pressing induced alignment of boron nitride in polyurethane for composite films with thermal conductivity over 50 Wm−1 K−1 journal May 2018
Enhanced thermal conductivity of polyurethane composites via engineering small/large sizes interconnected boron nitride nanosheets journal January 2019
Highly thermally conductive polyvinyl alcohol/boron nitride nanocomposites with interconnection oriented boron nitride nanoplatelets journal January 2021
Vertical filler alignment of boron nitride/epoxy composite for thermal conductivity enhancement via external magnetic field journal February 2016
Boron nitride nanotube reinforced hydroxyapatite composite: Mechanical and tribological performance and in-vitro biocompatibility to osteoblasts journal January 2011
Two-Dimensional Materials for Thermal Management Applications journal March 2018
Embedded extrusion printing in yield-stress-fluid baths journal November 2022
Surface modification of BN/Fe3O4 hybrid particle to enhance interfacial affinity for high thermal conductive material journal May 2016
Boron Nitride Nanosheets from Different Preparations and Correlations with Their Material Properties journal September 2019
Three-Dimensional Printing of Cytocompatible, Thermally Conductive Hexagonal Boron Nitride Nanocomposites journal April 2018
Thermal Conductivity of Polymer-Based Composites with Magnetic Aligned Hexagonal Boron Nitride Platelets journal March 2015
Polymer Composite with Improved Thermal Conductivity by Constructing a Hierarchically Ordered Three-Dimensional Interconnected Network of BN journal April 2017
Self-Supporting Nanoclay as Internal Scaffold Material for Direct Printing of Soft Hydrogel Composite Structures in Air journal May 2017
Vertically Aligned and Interconnected Boron Nitride Nanosheets for Advanced Flexible Nanocomposite Thermal Interface Materials journal August 2017
Multimaterial 3D Printing of Graphene-Based Electrodes for Electrochemical Energy Storage Using Thermoresponsive Inks journal October 2017
Novel Functionalized BN Nanosheets/Epoxy Composites with Advanced Thermal Conductivity and Mechanical Properties journal January 2020
Sonication-Enhanced Alignment Relay Technique for the Orientation of Single-Walled Carbon Nanotubes journal September 2019
General, Vertical, Three-Dimensional Printing of Two-Dimensional Materials with Multiscale Alignment journal October 2019
Magnetic Alignment of Hexagonal Boron Nitride Platelets in Polymer Matrix: Toward High Performance Anisotropic Polymer Composites for Electronic Encapsulation journal July 2013
Anisotropically Alignable Magnetic Boron Nitride Platelets Decorated with Iron Oxide Nanoparticles journal August 2013
Multimaterial magnetically assisted 3D printing of composite materials journal October 2015
2D boron nitride nanosheets for polymer composite materials journal May 2021
Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields journal January 2012
Temporal response of magnetically labeled platelets under dynamic magnetic fields journal January 2013
Preparation and characterization of surface modified boron nitride epoxy composites with enhanced thermal conductivity journal January 2014
Correction: Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields journal January 2019
Magnetically driven in-plane modulation of the 3D orientation of vertical ferromagnetic flakes journal January 2022
Thermal management in MoS 2 based integrated device using near-field radiation journal September 2015
Granular gel support-enabled extrusion of three-dimensional alginate and cellular structures journal June 2016
Shear-induced alignment of collagen fibrils using 3D cell printing for corneal stroma tissue engineering journal May 2019
High thermal conductivity of hexagonal boron nitride laminates journal January 2016
Graphene related materials for thermal management journal October 2019
Blood Flow and Cell-Free Layer in Microvessels: Blood Flow and Cell-Free Layer in Microvessels journal November 2010
Additive Manufacturing: Current State, Future Potential, Gaps and Needs, and Recommendations journal February 2015
Measurement Techniques for Thermal Conductivity and Interfacial Thermal Conductance of Bulk and Thin Film Materials journal October 2016
Increasing the thermal conductivity of boron nitride and aluminum nitride particle epoxy-matrix composites by particle surface treatments journal January 2000
Measuring fiber alignment in electrospun scaffolds: a user's guide to the 2D fast Fourier transform approach journal January 2008
Shear Force Fiber Spinning: Process Parameter and Polymer Solution Property Considerations journal February 2019