Multiscale Analysis on Electrical Properties of Carbon Fiber-Reinforced Wood Composites

Zhu, Xiaolong; Sun, Lianming

doi:10.15376/biores.10.2.2392-2405

Cited by 10 publications

(11 citation statements)

References 12 publications

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“…As shown in Table 2, the MOR and MOE for common MDF was generally enhanced by the addition of carbon fiber, which was consistent with other research reports (Shi 2011;Zhu and Sun 2015). However, the compounding pattern and the proportion of carbon fiber had noteworthy effects on the material's static performance.…”

Section: Static Test Analysissupporting

confidence: 89%

Dynamic Analysis of Carbon Fiber-Reinforced Wood Composites Based on Finite Element Model

Zhang¹,

Liu²,

Sun³

2015

BioResources

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Carbon fibers were pretreated by ultrasonic agitation and then were used to manufacture carbon fiber-reinforced wood composites (CFRWCs). The modulus of rupture (MOR) and the modulus of elasticity (MOE) for the CFRWCs were measured. The effects of the compounding pattern and proportion of carbon fiber on the dynamic performance were investigated by dynamic thermomechanical analysis (DMA) and finite element analysis (FEA). Finite element modeling was performed to simulate composite dynamic analysis using ANSYS commercial software. DMA results showed that the critical parameters for the mixed boards appeared to initially increase and then decrease as the content of carbon fiber increased. ANSYS simulations showed that the first-order natural frequency increased for single-sided and two-sided boards as the composite's carbon fiber content increased, whereas it initially increased and then decreased for mixed boards. In general, the mixed board with 20 wt.% carbon fiber had maximum dynamic performances. ANSYS simulation results were very close to those of the static test, which demonstrated that the finite element model was accurate.

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Section: Static Test Analysissupporting

confidence: 89%

Dynamic Analysis of Carbon Fiber-Reinforced Wood Composites Based on Finite Element Model

Zhang¹,

Liu²,

Sun³

2015

BioResources

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“…Despite some extensive research no study was found to confirm this behaviour of lower conductivity using pMDI resin compared to UF. One study mentions that isocyanate hardly conducts any electricity and thus does not influence the electrical properties of wood-based panels [ 23 ]. From the application of powder coating where the electrical conductivity of the substrate plays an important role, it is reported that panels using pMDI achieve higher conductivity values than panels bonded with UF or MUF [ 39 ].…”

Section: Resultsmentioning

confidence: 99%

“…Lastly, different studies showed the carbonization of a complete wood-based fibreboard [ 20 , 21 , 22 ]. A number of publications [ 15 , 23 , 24 , 25 , 26 ] shows the use of either carbon fibre (CF) or carbon nanotubes as conductive filler in wood-based panels or paper to improve selected characteristics of wood-based panels such as mechanical properties, electro-magnetic shielding, and thermal and electric conductivity.…”

Section: Introductionmentioning

confidence: 99%

Development of an Electrically Conductive MDF Panel—Evaluation of Carbon Content and Resin Type

2023

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Electronics in furniture and construction materials, in particular technologies which allow for a flexible and cable-free connection of electronics in such materials, are gaining broader interest. This study shows a further development of a concept to obtain highly conductive medium-density fibreboard panels (MDF) for furniture application. MDF were produced using two mixing processes (wet and dry) for wood and carbon fibres to investigate the effects of resin type (urea formaldehyde (UF) and polymeric methylene diphenyl diisocyanate (pMDI)) and carbon fibre content on their mechanical, physical, and electrical properties. Overall, wet mixed fibres showed better electrical but reduced mechanical properties. Modulus of elasticity (MOE) and bending strength (MOR) values of 3500 MPa and 35 MPa, respectively, and internal bond (IB) values of 0.45 to 0.65 MPa with electrical conductivities of up to 230 S/m were achieved. The technology has been successfully implemented in a demonstration object showing the application in a small piece of furniture.

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“…The EMSE could reach 50.8 dB ranging from 8.2 to 12.4 GHz. Sun [13] used waste sawdust to recycle and it had ideal performance in certain corrosive environments comparing with metal materials. Furthermore, the composites exhibited a conductive and electromagnetic shielding effect.…”

Section: Introductionmentioning

confidence: 99%

Preparation And Properties of Electroless Cu/Ni Composite Materials Based On Wood

Pan

Guo

Yin

et al. 2021

Preprint

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The changes of properties of wood-based Cu-Ni composites were studied via electroless Cu and Ni on wood surface to obtain Cu-Ni multilayer composites with excellent properties. The surface and interface morphology of the composite coatings were investigated via laser confocal microscopy and scanning electron microscope (SEM). The crystal structure was characterized by XRD. The hydrophobic properties of the composite coatings were tested via contact angle meter. The surface conductivity of composites was tested via four-probe. The results showed that the electrical conductivity of wood-based Cu-Ni composites was 2370.76 S/cm. The surface roughness was 9.99 μm and the thickness of uniform coating reached 157 μm via one time electroless Ni deposition and two times electroless Cu deposition. XRD analysis showed that the wood surface was uniformly covered with metal coating. The metal Cu and Ni were closely nested together to form a dense composite layer, and the composite material was light in weight. When the electroless Ni was 55 min, the contact angle could reach 123°, indicating that had best hydrophobicity. The average electromagnetic shielding effectiveness (EMSE) of Cu and Ni wood-based composites can reach 93.8 dB at L band ranging from 0.3×103 to 3.0×103 MHz) with a low thickness (157 μm), verified the multilayer composite materials can block over 99.99% of incident EM waves.

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Multiscale Analysis on Electrical Properties of Carbon Fiber-Reinforced Wood Composites

Cited by 10 publications

References 12 publications

Dynamic Analysis of Carbon Fiber-Reinforced Wood Composites Based on Finite Element Model

Dynamic Analysis of Carbon Fiber-Reinforced Wood Composites Based on Finite Element Model

Development of an Electrically Conductive MDF Panel—Evaluation of Carbon Content and Resin Type

Preparation And Properties of Electroless Cu/Ni Composite Materials Based On Wood

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