Article
Materials Science, Ceramics
Jun-Jie Ju, Zheng-Bai Zhao, Xiang-Yun Du, Xin Sun, Ji-Dong Liu, Wei-Li Li
Summary: A facile, eco-friendly, low-cost method is developed to fabricate thermally conductive and anti-corrosive composite coatings. The effects of filler types and contents on the anti-corrosive and thermally conductive properties are researched. The optimized coating exhibits excellent anti-corrosion ability and heat conduction.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Huan Li, Jing Sun, Jiajun Zang, Ningning Su, Xiaomei Feng, Yifu Shen
Summary: In this work, graphene nanoplates (GNPs) reinforced Cu-Cr composite coatings were prepared using mechanical alloying method and annealed to improve thermal conductivity. The results showed that GNPs were well dispersed in the coatings, leading to more homogeneous element distribution and the formation of chromium carbides. The thermal conductivity of the samples initially enhanced and then decreased with increasing GNPs content, with the highest thermal conductivity reaching 424.210 W m(-1) K-1 at 1.12 vol% GNPs.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Construction & Building Technology
Zihan Zhou, Yu Zhou, Jianshuai Hao, Bohan Yang, Qiongqiong Tang, Weiqiang Chen, Guansheng Han
Summary: This research proposes a novel anti-icing concrete coating material that is cost-effective and highly efficient. The material utilizes a low-cost and high-efficiency emulsion-type hydrophobic admixture and a micro-/nanobinary rough structure formed by recycled nylon mesh and metakaolin nanoparticles to effectively solve the problem of easy freezing and slow deicing. Through experiments and analysis, it is found that the material exhibits satisfactory anti-icing ability, easy deicing performance, and remarkable freeze-thaw durability. The study also investigates the superhydrophobicity mechanism and easy deicing property, and establishes models to analyze the influence of surface properties and ice adhesion. This research provides important guidance for solving the anti-icing problem and transitioning from passive deicing to active anti-icing in cold regions.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Environmental
Fei Xu, Meng Zhang, Yexiang Cui, Di Bao, Jianwen Peng, Yueyang Gao, Dan Lin, Haolei Geng, Yanji Zhu, Huaiyuan Wang
Summary: This study reports a novel highly thermally conductive and anticorrosive coating for heat exchangers protection. The coating utilizes modified boron nitride and graphene sheets to form heat conduction pathways and has unique multiple barrier effects. The coating demonstrates high thermal conductivity and corrosion prevention capabilities.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Hang Chi, Zewen Lin, Yuxin Chen, Renhao Zheng, Hong Qiu, Xiaolan Hu, Hua Bai
Summary: This paper reports on the direct ink writing 3D printing of multifunctional composite materials based on commercial epoxy resin and the recycling of printed composite materials. By adding graphene nanoplatelets as a thixotropic additive, the liquid epoxy resin can be shear-thinning and suitable for direct ink printing. The printed composite materials have high resolution, high mechanical strength, as well as high thermal and electrical conductivity, and fast thermo-induced shape memory response. The printed objects can be recycled by comminuting them into micropowders and used as a thixotropic agent for preparing recycled DIW ink.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Junyi Niu, Suyun Deng, Xuenong Gao, Huichang Niu, Yutang Fang, Zhengguo Zhang
Summary: In this study, a low thermal conductive phase change composite material (CPCM) with flame retardant coating (FR-CPCM) is proposed to prevent the propagation of thermal runaway (TR) in lithium-ion batteries (LIBs). The FR-CPCM shows excellent fire resistance and insulation performance. The experimental results demonstrate that the addition of FR-CPCM effectively prevents the propagation of battery TR and maintains the temperature of adjacent batteries within a safe range.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yanru Chen, Kai Pang, Xiaoting Liu, Kaiwen Li, Jiahao Lu, Shengying Cai, Yingjun Liu, Zhen Xu, Chao Gao
Summary: The rapid development of high-power and high-frequency devices in electronics creates a need for advanced thermal interface materials (TIMs) with high thermal conductivity and structural stability. Previous attempts using silicone-based TIMs with highly thermally conductive fillers have struggled with structural stability in extreme conditions. In this study, we fabricated a flexible TIM called graphene foam roll (GFR) using hydroplastic foaming and interface strengthening methods. By impregnating graphene oxide (GO) into the GFR, we achieved enhanced interface bonding and superior structural integrity. The GFR-TIM exhibited both exceptional structural stability, maintaining mechanical stability after 10,000 cycles at 60% compressive strain, and high temperature resistance up to 500 degrees C, which has not been reported before. Additionally, the GFR-TIM demonstrated higher thermal conductivity (approximately 17.42 W/mK) compared to most commercial TIMs (5-10 W/mK). It can serve as an efficient heat-dissipation component for CPUs and has superior cooling efficiency compared to commercial TIMs. This work presents an advanced graphene-based TIM with excellent environmental adaptability and anti-fatigue properties, expanding its applications in extreme environments such as hypersonic vehicles, high-throughput satellites, and high-power radar systems.
Article
Energy & Fuels
Jian Deng, Xinxi Li, Canbing Li, Tingyu Wang, Rui Liang, Songbo Li, Qiqiu Huang, Guoqing Zhang
Summary: This study proposes a multifunctional flexible composite phase change material (CPCM) with high anti-leakage and thermal conductivity performances. The leakage problem of CPCM is addressed by polymerizing and crosslinking reaction with polyethylene glycol and hexamethylene diisocyanate. The addition of 3 wt% aluminum nitride and 2 wt% carbon nanotubes significantly improves the thermal conductivity of the CPCM by 2.8 times. The multifunctional flexible CPCM controls the maximum temperature of the battery module below 45 degrees C even at 1.5C discharge rate, with a temperature difference maintained within 4.3 degrees C. This multifunctional flexible CPCM provides an efficient solution to improve the thermal safety of battery packs in applications, promoting the development of electric vehicles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Tongtong Hao, Zhicheng Zhu, Huige Yang, Zhiyuan He, Jianjun Wang
Summary: The study has developed porous films using a chemical oxidation polymerization method, which shows excellent abilities in absorbing solar energy, generating a photo-thermal effect, and exhibiting an electro-thermal effect under practical conditions. As an anti-icing/deicing material, it performs well in preventing ice formation with outstanding heat retention properties.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Wensheng Yang, Ruheng Lin, Xinxi Li, Canbing Li, Guoqing Zhang, Xiaozhou Liu, Songbo Li, Yongzhen Wang
Summary: This study successfully prepared a high thermal conductivity composite phase change material (CPCM) through a synergistic method of in situ chemical reduction and physical blending technology. Polyethylene glycol (PEG) is used as the phase change matrix, halloysite nanotube (HNT) as the support material, and expanded graphite (EG) and silver nanoparticles (AgNPs) assembled into HNT (HNT@AP) to construct an interconnected thermal network. The thermal conductivity of the CPCM is increased to 1.15 W·m(-1)·K-1 and the latent heat of phase change can maintain at 103.65 J·g(-1) when the content of HNT@AP is 40%. The battery module with PEG/EG/HNT@AP shows excellent thermal management effect, with the temperature controlled below 60°C at a 3C discharge rate even under 35°C ambient temperature. This work sheds light on the rational design of high thermal conductive composite materials to improve the thermal safety of battery packs in electric vehicles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Xiangjun Zheng, Xuenong Gao, Zhaowen Huang, Zhongping Li, Yutang Fang, Zhengguo Zhang
Summary: Novel form-stable composite phase change materials were prepared for solar energy conversion and storage, with significantly higher thermal conductivities and excellent light-to-thermal energy conversion efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Physical
Fang Luo, Xiaosong Jiang, Hongliang Sun, Defeng Mo, Yali Zhang, Rui Shu, Xue Li
Summary: This study focuses on the fabrication of thermal management materials integrating thermal and electrical properties by preparing graphene film reinforced Cu laminated composites. Graphene serves as a good reinforcement phase due to its excellent electrical and thermal conductivity. By optimizing the internal structure of the materials, better electrical and thermal conductivity performance can be achieved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Thermodynamics
Avia Ohayon-Lavi, Gal Shachar-Michaely, Elad Koronio, Yair Keller, Eilam Yalon, Gennady Ziskind, Oren Regev
Summary: This study proposes a novel conformal coating with enhanced thermal conductivity for effective heat dissipation from hot spots on printed circuit boards. By loading a polymer with graphene nano-platelets (GnP), a heat-dissipating composite with two orders of magnitude higher thermal conductivity (33 W/m K) is created. Experimental results show that the temperature of the component significantly decreases when the coating is applied, with a temperature drop of up to 35 degrees C under the given conditions. Numerical simulations provide further insights and confirm the experimental findings. The thin conformal coating can easily be used for thermal management in various applications in the electronic industry.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Qiuhong Wu, Zhimeng Zhao, Pengfei Li, Xuetan Ren, Xikui Wang, Fei Zhou, Shanlin Wang
Summary: Long-term anti-icing technology is an important measure to solve industrial development in low temperature environments. In this study, a fluorine-modified CNT@epoxy electrothermal coating was designed to combine passive anti-icing with active deicing. The coating exhibited excellent properties such as superhydrophobicity, low resistivity, robust durability, higher electrothermal response rate, freezing resistance, and rapid electrothermal thawing ability. This study provides new solutions for long-term anti-icing surface applications and can be applied in cryogenic systems, power transmission systems, high-altitude vehicles, and more.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Coatings & Films
Jin Yang, Yifan Zhang, Xiaohua Jia, Beibei Chen, Yong Li, Sizhe Wang, Dan Shao, Lei Feng, Haojie Song
Summary: In this study, mechanically robust slippery coatings with stable water-repellency were prepared using PDMS, EP, and PDA/rGO. The coating exhibited low sliding angles, excellent wear and corrosion resistance, as well as outstanding photothermal deicing and anti-sticking performances.
SURFACE & COATINGS TECHNOLOGY
(2022)
