scholarly journals Nanoarchitectonics of BN/AgNWs/Epoxy Composites with High Thermal Conductivity and Electrical Insulation

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4417
Author(s):  
Xue Li ◽  
Ling Weng ◽  
Hebing Wang ◽  
Xiaoming Wang
Keyword(s):  
Thermal Conductivity ◽  
Epoxy Resin ◽  
Silane Coupling Agent ◽  
Hexagonal Boron Nitride ◽  
Silver Nanowires ◽  
Electrical Insulation ◽  
Epoxy Composites ◽  
Thermal Network ◽  
Silane Coupling ◽  
Dopamine Hydrochloride

To promote the construction of the thermal network in the epoxy resin (EP), a certain proportion of silver nanowires (AgNWs) coupled with the hexagonal boron nitride (BN) nanoplates were chosen as fillers to improve the thermal conductivity of EP resin. Before preparing the composites, BN was treated by silane coupling agent 3-aminopropyltriethoxysilane (KH550), and AgNWs was coated by dopamine hydrochloride. The BN/AgNWs/EP composites were prepared after curing, and the thermal conductivity and dielectric properties of the composites was tested. Results showed that the AgNWs and BN were uniformly dispersed in epoxy resin. It synergistically built a thermal network and greatly increased the thermal conductivity of the composites, which increased 9% after adding AgNWs. Moreover, the electrical property test showed that the addition of AgNWs had little effect on the dielectric constant and dielectric loss of the composites, indicating a rather good electrical insulation of the composites.

Improved Thermal Conductivities of Epoxy Resins Containing Surface Functionalized BN Nanosheets

NANO ◽  
2018 ◽  
Vol 13 (11) ◽  
pp. 1850133 ◽  
Author(s):  
Ling Weng ◽  
HeBing Wang ◽  
Xiaorui Zhang ◽  
Lizhu Liu ◽  
Hexin Zhang
Keyword(s):  
Thermal Conductivity ◽  
Epoxy Resins ◽  
Hexagonal Boron Nitride ◽  
Electrical Insulation ◽  
Coupling Agents ◽  
Thermal And Mechanical Properties ◽  
Silane Coupling Agents ◽  
Silane Coupling ◽  
Ep Matrix ◽  
Electrical Insulation Properties

The hexagonal boron nitride nanosheets (BN) were firstly treated by silane coupling agents 3-aminopropyltriethoxysilane (KH550) and 3-glycidoxypropyl-trimethoxysilane (KH560) to introduce some amino and epoxy (EP) groups on the BN surface. These modified BN nanosheets were incorporated into an EP matrix to prepare BN@KH560/EP composites with excellent thermal conductivity and electrical insulation properties. Results showed that the thermal conductivity of BN@KH560/EP composite with 20[Formula: see text]vol% BN dosage was found to be 0.442[Formula: see text]W/(m[Formula: see text]K), which was 81% higher than that of pure EP resin. Both BN/EP composites treated by KH550 and KH560 showed rather good electrical insulation properties, although the dielectric constant of BN@KH550/EP composites were slightly higher than BN@KH560/EP composites. Moreover, BN@KH560/EP composites also showed better thermal and mechanical properties than that of BN@KH550/EP composites.

scholarly journals Synergetic Effects of Silver Nanowires and Graphene Oxide on Thermal Conductivity of Epoxy Composites

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1264 ◽  
Author(s):  
Li Zhang ◽  
Wenfeng Zhu ◽  
Ying Huang ◽  
Shuhua Qi
Keyword(s):  
Thermal Conductivity ◽  
Graphene Oxide ◽  
Impact Strength ◽  
Epoxy Resin ◽  
Silver Nanowires ◽  
Phonon Transport ◽  
Epoxy Composites ◽  
Hybrid Fillers ◽  
Interfacial Contact ◽  
The Impact

One-dimensional silver nanowires (AgNWs) and two-dimensional graphene oxide (GO) were combined to construct a three-dimensional network structure. The AgNWs can effectively inhibit stacking of adjacent GO sheets by occupying regions between layers of GO. Moreover, the GO sheets embedded in the gaps of the AgNWs network increase the interfacial contact area between the AgNWs and the epoxy matrix, resulting in the formation of more efficient phonon transport channels. To prepare an epoxy-based thermal conductive composite, hybrid networks were fabricated and added to epoxy resin using a solution mixing method. Significant synergistic effects were observed between the AgNWs and GO sheets. The thermal conductivity of epoxy composites filled with 10 wt.% AgNW/GO hybrids was found to be 1.2 W/mK and the impact strength was 28.85 KJ/m2, which are higher than the corresponding values of composites containing AgNWs or GO sheets alone. Thus, the thermal conductivity and impact strength of the epoxy composites were improved. The additive effects are mainly owing to the improved interfacial contact between the hybrid fillers and the epoxy resin, resulting in a more efficient phonon transport network. The use of hybrid fillers with different structures is a simple and scalable strategy for manufacturing high-performance thermally conductive materials for electronic packaging.

Thermal conductivity and electrical insulation of epoxy composites with graphene-SiC nanowires and BaTiO3

2019 ◽  
Vol 117 ◽  
pp. 287-298 ◽  
Author(s):  
Jing He ◽  
Hua Wang ◽  
Zheng Su ◽  
Yulan Guo ◽  
Xingyou Tian ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Insulation ◽  
Epoxy Composites ◽  
Sic Nanowires

Morphology control of hexagonal boron nitride by a silane coupling agent

2011 ◽  
Vol 316 (1) ◽  
pp. 185-190 ◽  
Author(s):  
Xiao-kun Ma ◽  
Nam-Hee Lee ◽  
Hyo-Jin Oh ◽  
Sang-Chul Jung ◽  
Won-Jae Lee ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Hexagonal Boron Nitride ◽  
Morphology Control ◽  
Silane Coupling

Boron nitride‐graphene sponge as skeleton filled with epoxy resin for enhancing thermal conductivity and electrical insulation

2019 ◽  
Vol 40 (S2) ◽  
pp. E1600-E1611 ◽  
Author(s):  
Yulan Guo ◽  
Jing He ◽  
Hua Wang ◽  
Zheng Su ◽  
Qiqi Qu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Epoxy Resin ◽  
Electrical Insulation ◽  
Graphene Sponge

Matrix modification with silane coupling agent for carbon fiber reinforced epoxy composites

2013 ◽  
Vol 14 (5) ◽  
pp. 759-766 ◽  
Author(s):  
Jinshui Yang ◽  
Jiayu Xiao ◽  
Jingcheng Zeng ◽  
Liping Bian ◽  
Chaoyi Peng ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Silane Coupling ◽  
Matrix Modification ◽  
Carbon Fiber Reinforced

Studies on the thermal stabilization enhancement of ABS; synergistic effect of triphenyl phosphate nanocomposite, epoxy resin, and silane coupling agent mixtures

2003 ◽  
Vol 79 (2) ◽  
pp. 201-207 ◽  
Author(s):  
Jinhwan Kim ◽  
Kyongho Lee ◽  
Kunwoo Lee ◽  
Jinyoung Bae ◽  
Jaeho Yang ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Epoxy Resin ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Thermal Stabilization ◽  
Triphenyl Phosphate ◽  
Silane Coupling

Tuning of thermal and dielectric properties for epoxy composites filled with electrospun alumina fibers and graphene nanoplatelets through hybridization

2015 ◽  
Vol 3 (27) ◽  
pp. 7195-7202 ◽  
Author(s):  
Jun-Wei Zha ◽  
Tian-Xing Zhu ◽  
Yun-Hui Wu ◽  
Si-Jiao Wang ◽  
Robert K. Y. Li ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Epoxy Resin ◽  
Electronics Packaging ◽  
Graphene Nanoplatelets ◽  
Electrical Insulation ◽  
Epoxy Composites ◽  
Alumina Fibers ◽  
Excellent Adhesion ◽  
Cure Shrinkage

Epoxy resin is widely used for electrical and electronics packaging in various forms due to its excellent adhesion, low cure shrinkage and good electrical insulation.

Improved thermal conductivity and dielectric properties of hBN/PTFE composites via surface treatment by silane coupling agent

2017 ◽  
Vol 111 ◽  
pp. 83-90 ◽  
Author(s):  
Chen Pan ◽  
Kaichang Kou ◽  
Qian Jia ◽  
Yu Zhang ◽  
Guanglei Wu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Surface Treatment ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Silane Coupling ◽  
Ptfe Composites
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