Thermal enhancement by constructing ordered-orienting hybrid network with modified boron nitride, graphene and carbon nanotubes in epoxy composite coatings

Li, Xinyu; Wang, Jianqiang; Tian, Yantao; Xiang, Junfeng; Zhang, Xinya

doi:10.1016/j.porgcoat.2022.107078

Cited by 11 publications

(1 citation statement)

References 53 publications

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“…Incorporating hybrid fillers composed of two or more different types of polymer is expected to synergistically promote the formation of multiple thermal conductivity networks and further improve the thermal conductivity of materials. [26][27][28][29][30] In recent years, liquid metal (LM), as an emerging functional material, has drawn much attention in view of its high thermal conductivity, high mobility, and low toxicity. 31,32 But the composite with only plenty of LM as thermal conductive filler is usually a conductor, which limits its application in electrical insulation field.…”

Section: Introductionmentioning

confidence: 99%

Castor oil‐based polyurethane ternary composites with enhanced thermal conductivity and mechanical properties by using liquid metal as second filler

Xu,

Du,

Jia

et al. 2024

Polymer Composites

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With the miniaturization, high frequency of electronic devices, and low‐carbon and sustainable development, higher requirements are put forward for thermal conductive polyurethane composites in terms of comprehensive performance and renewable raw materials. Herein, choosing bio‐based polyurethane (PU) derived from castor oil as matrix, and liquid metal (LM) and aluminum hydroxide (ATH) as hybrid thermal conductive filler, castor oil‐based PU composites were developed via high‐speed rotation and in‐situ polymerization method. The LM‐ATH hybrid filler displayed a synergistic enhancement effect on the thermal conductivity of composites due to the presence of LM‐bridging significantly improved the effective contact probability between ATH fillers. The thermal conductivity of 50LM‐ATH/PU reached 1.69 Wm−1 K−1, which was 9.9 times and 1.4 times higher than that of pure PU and 50ATH/PU, respectively. Notably, the 50LM‐ATH/PU exhibited outstanding mechanical properties including tensile strength up to 4.0 MPa and adhesion strength up to 7.9 MPa, especially elongation at break up to 120% which was improved by 200% compared with 50ATH/PU (40%). Additionally, the composite possessed excellent electric insulation, thermal stability, and inflaming retarding properties, showing great application potential in the electronic devices field.Highlights Castor oil‐based PU composites with ATH‐LM hybrid filer were developed. LM‐ATH hybrid filler of 2:8 promoted the thermal conductivity of composites. Hybrid filler than ATH‐endowed composites with better mechanical properties. The ATH‐LM/PU exhibited excellent electric insulation.

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Section: Introductionmentioning

confidence: 99%

Castor oil‐based polyurethane ternary composites with enhanced thermal conductivity and mechanical properties by using liquid metal as second filler

Xu,

Du,

Jia

et al. 2024

Polymer Composites

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An integrated CRITIC-COPRAS approach for multi-response optimization on AWJM of hybrid filler–reinforced polymer composite and its surface integrity

Vijayananth,

Pudhupalayam Muthukutti,

Keerthiveettil Ramakrishnan

et al. 2024

Int J Adv Manuf Technol

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Composites have gained acceptance in an extensive range of applications owing to their unique characteristics. But, machining of these materials is often challenging due to improved bonding between matrix and fibre when fillers are added. Since the machinability is an important aspect for any material for its successful utilization, it is essential to analyse the effect of secondary phase on machinability. However, investigations on the effect of fillers on machinability of polymer composites are minimal. In this research, hybrid fillers, namely boron nitride (BN) and montmorillonite (MMT) nanoclay, were added to epoxy/glass fibre composite through compression moulding, in which quantity of MMT is fixed and BN is varied from 2 to 6 wt%. Abrasive water jet machining (AWJM) is a leading method for machining polymer composites in which transverse speed, stand-off distance, pump pressure and filler percentage are key factors and are considered as input variables. To assess the machinability, material removal rate (MRR), surface roughness (Ra) and kerf taper (Kt) are chosen as response variables. Experimental planning is done through Taguchi method, and Criteria Importance Through Intercriteria Correlation (CRITIC)-weighted Complex Proportional Assessment (COPRAS) technique is utilized for optimization. The results revealed that addition of BN reduces the MRR while it improves the surface finish and reduces the Kt. Transverse speed has the most influence over all the considered output responses, stand-off distance and water pressure mainly affect the MRR and Ra while filler addition mainly affects the Kt. The hybrid CRITIC-COPRAS approach–recommended optimal control factors resulted in 16.20 mm3/min MRR with 0.29° Kt and 3.86 µm Ra. The recommended optical condition can be utilized for effective machining of polymer composite with MMT/BN fillers. Graphical abstract

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Effect of carbon nanotube (CNT)-reinforced polymers and biopolymer matrix on interface damage of nanocomposite materials

Belkheir,

Rouissat,

Mokaddem

et al. 2023

emergent mater.

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Thermal enhancement by constructing ordered-orienting hybrid network with modified boron nitride, graphene and carbon nanotubes in epoxy composite coatings

Cited by 11 publications

References 53 publications

Castor oil‐based polyurethane ternary composites with enhanced thermal conductivity and mechanical properties by using liquid metal as second filler

Castor oil‐based polyurethane ternary composites with enhanced thermal conductivity and mechanical properties by using liquid metal as second filler

An integrated CRITIC-COPRAS approach for multi-response optimization on AWJM of hybrid filler–reinforced polymer composite and its surface integrity

Effect of carbon nanotube (CNT)-reinforced polymers and biopolymer matrix on interface damage of nanocomposite materials

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