Epoxy composite with high thermal conductivity by constructing 3D-oriented carbon fiber and BN network structure

Wang, Ying; Wu, Xinfeng; Jin, Chen; Shan, Liming; Sun, Kai; Zhao, Yuantao; Yang, Ke; Yu, Jinhong; Li, Wenge

doi:10.1039/d1ra04602k

Cited by 15 publications

(7 citation statements)

References 50 publications

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“…Moreover, the thermal conductivity of CF-reinforced composites with a three-dimensional oriented skeleton is also limited by inevitable gaps between adjacent fibers. 25 One of the main challenges in polymer-based composite materials is the creation of an effective three-dimensional thermal conductivity network within the polymer matrix, achieved by using low filler fractions and ensuring their homogeneous dispersion. 26 It is worth noting that, in addition to achieving a homogeneous distribution of fillers, the type of matrix and fillers-meaning the interaction between the filler and polymer-plays a crucial role in determining the thermal and mechanical properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

The effect of hybrid thermal fillers on thermal conductivity of carbon fiber reinforced polybutylene terephthalate composites

Yenier,

Seki,

Aker

et al. 2024

Polymer International

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The use of functional polymeric composites with superior thermal properties, capable of replacing conventional polymers, has increased in recent years, particularly in the electrical‐electronics sector where thermal management is crucial. Carbon fiber polymer–matrix structural composites have relatively high in‐plane thermal conductivity but low through‐plane conductivity. In order to further enhance the through‐plane and in‐plane conductivity of carbon fiber (CF)‐reinforced polybutylene terephthalate (PBT) composite, a hybrid loading approach was employed, incorporating synthetic graphite (SG), boron nitride (HBN), aluminum nitride (AlN), and graphene (G) in composite formulations. It was obtained that the in‐plane conductivity values of PBT‐20CF‐20SG‐3G and the through‐plane conductivity of PBT‐20CF‐20SG‐3AlN are 69% and 25% higher than those of PBT‐40CF, respectively. However, the mechanical properties of hybrid composites exhibit lower values compared to those of CF‐reinforced PBT composites. The tensile strength value of PBT‐40CF is about 33% and 57% higher than that of PBT‐20CF‐20SG‐3G and PBT‐20CF‐20SG‐3AlN. Moreover, the flexural strength of PBT‐40CF is about 48% and 38% higher than that of PBT‐20CF‐20SG‐3G and PBT‐20CF‐20SG‐3AlN, respectively. The density value of PBT‐40CF is lower than that of the composites of PBT‐20CF‐20SG. From thermogravimetric analysis (TGA) analysis it was observed that the thermal stability of PBT‐40CF is comparable to that of the composites PBT‐20CF‐20SG. From the conducted study, it can be proposed that the hybrid combination of SG, HBN, AlN, and G can be utilized to achieve higher thermal conductivity values, as opposed to relying solely on CF in the composites.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

The effect of hybrid thermal fillers on thermal conductivity of carbon fiber reinforced polybutylene terephthalate composites

Yenier,

Seki,

Aker

et al. 2024

Polymer International

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“…There are many methods to enhance the thermal conductivity of CF/EP composites, such as adding thermal conductive micro/nano fillers to polymer, 9 modifying fiber and interface 10 and constructing a 3D network thermal channel. 11 Adding thermal conductive fillers is a simple and efficient way to enhance the thermal conductivity of composite materials. 12,13 Hexagonal boron nitride (h-BN) has been widely used as the thermal conductive filler due to its high thermal conductivity, low density, good stability and cost-efficiency.…”

Section: Introductionmentioning

confidence: 99%

Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites by interleaving BN@ZnO particles

Zhang

Dong

et al. 2023

J of Applied Polymer Sci

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Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy resin composites (CF/EP) is a challenging research job. In this work, hexagonal boron nitride coated ZnO (BN@ZnO) particles were firstly prepared by sol-gel method and BN@ZnO composite laminates were manufactured by mold pressing process. X-ray diffraction,x-ray electron spectroscopy and scanning electron microscopy were used to analyze the structure, chemical components and morphology of the BN@ZnO and composite laminates. The effects of BN@ZnO on the impact strength, model II interlaminar fracture toughness (G IIC ) and thermal conductivity of composite laminates are investigated. The results show that the interlaminar fracture toughness and thermal conductivity of composite laminates are synergistically enhanced owing to the introduction of hybrid fillers with different dimensions and morphology. The thermal conductivity of the 10 wt% BN@ZnO coated composite laminates is increased by 78% and 90% at 25 and 100 C, respectively. The mechanical properties of composite laminates are enhanced. The model II interlaminar fracture toughness of 2 wt% BN@ZnO composite laminates is 15.4% higher than pure laminate. This work is of significance to realize the structural and functional integration of composite materials.

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“…Carbon fiber/epoxy resin (CF/EP) composite laminates exhibit high strength and strong impact resistance 1–3 . They are suitable for engineering applications, such as aerospace and automotive rails 4,5 .…”

Section: Introductionmentioning

confidence: 99%

“…Carbon fiber/epoxy resin (CF/EP) composite laminates exhibit high strength and strong impact resistance. [1][2][3] They are suitable for engineering applications, such as aerospace and automotive rails. 4,5 In their service process, CF/EP composite laminates often inevitably experience various impact loadings.…”

Section: Introductionmentioning

confidence: 99%

Low‐velocity impact properties of carbon fiber/ultrahigh molecular weight polyethylene fiber hybrid composites

Zhou,

Xu,

Zhou

et al. 2023

Polymer Composites

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To understand the hybrid fiber enhanced impact‐resistance performance of composite laminates. In particular, the effects of different parameters, such as hybrid fiber ratios and plying modes, were investigated. The effects of UHMWPE short fibers (UHMWPESFs) fiber content and ply angle changes on the impact resistance of Carbon fiber/ultra‐high molecular weight polyethylene short fiber hybrid composite (CUFHRP) laminates were investigated in this article. The impact resistance of the CUFHRP laminate was tested by the drop weight test and residual strength test after impact. The results indicated that the peak load and absorption energy of the specimen with a fiber content of 15 g/m2 were the highest, reaching 6.543 kN and 16.51 J, respectively. Specimens with different ply modes of [0/−45/45/90]2s showed the most obvious effect on the maximum load. Its maximum load was 28.93% higher than that of the original sample. The critical damage threshold load of composite laminates is improved, and the impact resistance is strengthened.Highlights Study to improve the impact resistance of the composite on the basis of the hybrid structure. Report the optimal parameters of the effects on the impact resistance of the composite, such as: hybrid fiber ratios and plying modes. Reveal the fundamental failure mode of hybrid structure composite laminates under low‐velocity impact.

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Epoxy composite with high thermal conductivity by constructing 3D-oriented carbon fiber and BN network structure

Abstract: As electronic devices tend to be integrated and high-powered, thermal conductivity is regarded as the crucial parameter of electronic components, which is the main factor that limits the operating speed and service lifetime of electronic devices.

Cited by 15 publications

References 50 publications

The effect of hybrid thermal fillers on thermal conductivity of carbon fiber reinforced polybutylene terephthalate composites

The effect of hybrid thermal fillers on thermal conductivity of carbon fiber reinforced polybutylene terephthalate composites

Synergetic improvement of the thermal conductivity and interlaminar fracture toughness of carbon fiber/epoxy composites by interleaving BN@ZnO particles

Low‐velocity impact properties of carbon fiber/ultrahigh molecular weight polyethylene fiber hybrid composites

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