Ag-NPs/MWCNT composite-modified silver-epoxy paste with improved thermal conductivity

Li, Yanchao; Gan, Guoyou; Huang, Yen-Yu; Yu, Xiangyang; Cheng, Junhua; Liu, Chengbin

doi:10.1039/c9ra03090e

Cited by 12 publications

(4 citation statements)

References 33 publications

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“…FTIR spectroscopy was used to discriminate and identify the biomolecules of olive leaf. FTIR has been utilized by numerous researchers to analyze a variety of materials [ 23 , 24 , 25 ]. By looking at FTIR spectra based on stretching or bending vibration of specibonds, FTIR spectroscopy can reveal information on intermolecular interaction [ 25 , 26 ].…”

Section: Resultsmentioning

confidence: 99%

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Olive Leaf Extracts for a Green Synthesis of Silver-Functionalized Multi-Walled Carbon Nanotubes

Alhajri

Aloqaili

Alterary

et al. 2022

JFB

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Green biosynthesis, one of the most dependable and cost-effective methods for producing carbon nanotubes, was used to synthesize nonhazardous silver-functionalized multi-walled carbon nanotubes (SFMWCNTs) successfully. It has been shown that the water-soluble organic materials present in the olive oil plant play a vital role in converting silver ions into silver nanoparticles (Ag-NPs). Olive-leaf extracts contain medicinal properties and combining these extracts with Ag-NPs is often a viable option for enhancing drug delivery; thus, this possibility was employed for in vitro treating cancer cells as a proof of concept. In this study, the green technique for preparing SFMWCNTs composites using plant extracts was followed. This process yielded various compounds, the most important of which were Hydroxytyrosol, Tyrosol, and Oleuropein. Subsequently, a thin film was fabricated from the extract, resulting in a natural polymer. The obtained nanomaterials have an absorption peak of 419 nm in their UV–Vis. spectra. SEM and EDS were also used to investigate the SFMWCNT nanocomposites’ morphology simultaneously. Moreover, the MTT assay was used to evaluate the ability of SFMWCNTs to suppress cancer cell viability on different cancer cell lines, MCF7 (human breast adenocarcinoma), HepG2 (human hepatocellular carcinoma), and SW620 (human colorectal cancer). Using varying doses of SFMWCNT resulted in the most significant cell viability inhibition, indicating the good sensitivity of SFMWCNTs for treating cancer cells. It was found that performing olive-leaf extraction at a low temperature in an ice bath leads to superior results, and the developed SFMWCNT nanocomposites could be potential treatment options for in vitro cancer cells.

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Section: Resultsmentioning

confidence: 99%

“…FTIR has been utilized by numerous researchers to analyze a variety of materials [ 23 , 24 , 25 ]. By looking at FTIR spectra based on stretching or bending vibration of specibonds, FTIR spectroscopy can reveal information on intermolecular interaction [ 25 , 26 ]. In Figure 4 , the olive leaf’s FTIR spectrum is shown.…”

Section: Resultsmentioning

confidence: 99%

Olive Leaf Extracts for a Green Synthesis of Silver-Functionalized Multi-Walled Carbon Nanotubes

Alhajri

Aloqaili

Alterary

et al. 2022

JFB

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“…There are some reports indicating that depositing nanosilver on the surface of carbon nanotubes can enhance the electronic conductivity and thermal conductivity of silver paste. Li et al [ 20 ] synthesized Ag-MWCNT composite materials through chemical methods, which can improve the thermal conductivity of silver paste from 0.73 W/m·K to 0.96 W/m·K. Although the prepared composite material Ag-MWCNTs can improve the thermal conductivity of paste, the electrical resistivity of the paste has not been tested; moreover, the improvement in thermal conductivity is not significant, which cannot meet the requirements in microelectronic products.…”

Section: Introductionmentioning

confidence: 99%

Ag-MWCNT Composites for Improving the Electrical and Thermal Properties of Electronic Paste

Wang,

Jing,

Xiong

et al. 2024

Polymers

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With the development of microelectronics products with high density and high power, it is urgent to improve the electrical and thermal conductivity of electronic paste to achieve the new requirements of packaging materials. In this work, a new synthesis method of Ag-MWCNTs was designed: Firstly, carboxylated MWCNTs and stannous chloride were used as raw materials to prepare high-loading-rate Sn-MWCNT composite material to ensure the high loading rate of metal on the MWCNT surface. Then, Ag-MWCNT composite material was prepared by the chemical displacement method to solve the problem of the low loading rate of silver nanoparticles on the MWCNT surface. On the basis of this innovation, we analyzed and compared the electrical, thermal, and mechanical properties of Ag-MWCNT composite electronic paste. Compared with the electronic paste without adding Ag-MWCNTs, the resistivity was reduced by 77%, the thermal conductivity was increased by 66%, and the shear strength was increased by 15%. Therefore, the addition of Ag-MWCNTs effectively improves the electrical, thermal, and mechanical properties of the paste, making it a promising and competitive choice for new packaging materials in the future.

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“…Typical thermal conductive fillers include metals (Ag, Al, etc.) [ 14 ], carbon-based materials (carbon nanotube, graphene, etc.) [ 15 , 16 , 17 ], and ceramics (Al 2 O 3 , BN, etc.)…”

Section: Introductionmentioning

confidence: 99%

Synthesis of KH550-Modified Hexagonal Boron Nitride Nanofillers for Improving Thermal Conductivity of Epoxy Nanocomposites

et al. 2023

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In this work, KH550 (γ-aminopropyl triethoxy silane)-modified hexagonal boron nitride (BN) nanofillers were synthesized through a one-step ball-milling route. Results show that the KH550-modified BN nanofillers synthesized by one-step ball-milling (BM@KH550-BN) exhibit excellent dispersion stability and a high yield of BN nanosheets. Using BM@KH550-BN as fillers for epoxy resin, the thermal conductivity of epoxy nanocomposites increased by 195.7% at 10 wt%, compared to neat epoxy resin. Simultaneously, the storage modulus and glass transition temperature (Tg) of the BM@KH550-BN/epoxy nanocomposite at 10 wt% also increased by 35.6% and 12.4 °C, respectively. The data calculated from the dynamical mechanical analysis show that the BM@KH550-BN nanofillers have a better filler effectiveness and a higher volume fraction of constrained region. The morphology of the fracture surface of the epoxy nanocomposites indicate that the BM@KH550-BN presents a uniform distribution in the epoxy matrix even at 10 wt%. This work guides the convenient preparation of high thermally conductive BN nanofillers, presenting a great application potential in the field of thermally conductive epoxy nanocomposites, which will promote the development of electronic packaging materials.

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Ag-NPs/MWCNT composite-modified silver-epoxy paste with improved thermal conductivity

Abstract: Heat dissipation is a critical issue in high-performance electronics, which needs to be solved, and an electronic paste is a good choice to solve this issue.

Cited by 12 publications

References 33 publications

Olive Leaf Extracts for a Green Synthesis of Silver-Functionalized Multi-Walled Carbon Nanotubes

Olive Leaf Extracts for a Green Synthesis of Silver-Functionalized Multi-Walled Carbon Nanotubes

Ag-MWCNT Composites for Improving the Electrical and Thermal Properties of Electronic Paste

Synthesis of KH550-Modified Hexagonal Boron Nitride Nanofillers for Improving Thermal Conductivity of Epoxy Nanocomposites

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