Epoxy–PCM Composites with Nanocarbons or Multidimensional Boron Nitride as Heat Flow Enhancers
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Authors
Agrawal, Richa
Hanna, Joshua
Gunduz, I. Emre
Luhrs, Claudia C.
Subjects
phase change material
thermal energy storage
epoxy composites
nanomaterials
materials for temperature regulation
paraffin
boron nitride
carbon
thermal energy storage
epoxy composites
nanomaterials
materials for temperature regulation
paraffin
boron nitride
carbon
Advisors
Date of Issue
2019-05-16
Date
16 May 2019
Publisher
MDPI
Language
Abstract
The need for a ordable systems that are capable of regulating the temperature of living
or storage spaces has increased the interest in exploring phase change materials (PCMs) for latent
heat thermal energy storage (LHTES). This study investigates n-nonadecane (C19H40) and n-eicosane
(C20H42) as alkane hydrocarbons/para ns for LHTES applications. An epoxy resin is used as the
support matrix medium to mitigate para n leakage, and a thickening agent is utilized to suppress
phase separation during the curing process. In order to enhance the thermal conductivity of the
epoxy–para n composite, conductive agents including carbon nanofibers (CNFs), carbon nanotubes
(CNTs), boron nitride (BN) microparticles, or boron nitride nanotubes (BNNTs) are incorporated in
di erent gravimetric ratios. Enhancements in latent heat, thermal conductivity, and heat transfer are
realized with the addition of the thermal fillers. The sample composition with 10 wt.% BN shows
excellent reversibility upon extended heating–cooling cycles and adequate viscosity for template
casting as well as direct three-dimensional (3D) printing on fabrics, demonstrating the feasibility for
facile integration onto liners/containers for thermal regulation purposes.
Type
Article
Description
The article of record as published may be found at https://doi.org/10.3390/molecules24101883
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
National Research Council Research Associateship Program (NRC-RAP)
Funder
Office of Naval Research (ONR) through their Energy Systems Technology Evaluation Program (ESTEP)
Naval Postgraduate School (NPS) Foundation seed funding
Naval Postgraduate School (NPS) Foundation seed funding
Format
14 p.
Citation
Agrawal, Richa, et al. "Epoxy–PCM composites with nanocarbons or multidimensional boron nitride as heat flow enhancers." Molecules 24.10 (2019): 1883.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, it may not be copyrighted.