Fabrication and characteristics of graphene‐reinforced silver nanowire/polybenzoxazine/epoxy copolymer composite thin films

Chou, Tsung Yu; Tsai, Hsiang‐Lin; Hsu, C.H.; Yip, Ming‐Chuen

doi:10.1002/pi.5614

Cited by 4 publications

(3 citation statements)

References 51 publications

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“…It has been reported that PVP acted as a capping agent during the preparation of AgNWs and led to high uniformity and controlled facet growth along the longitudinal growth direction. [40][41][42][43][44][45] It is believed that PVP possesses binding properties, and therefore, it adsorbed selectively on the side surface, the {100} facet of AgNWs, and restricted the growth of side surface, hence controlling the diameter of AgNWs throughout the entire length. 46 Moreover, it has also been reported that due to the binding properties of PVP onto the facets of AgNWs, high molecular weight is more promising in efficient synthesis of AgNWs.…”

Section: Synthesis and Characterization Of Agnwsmentioning

confidence: 99%

Synthesis of AgNWs Using High Molecular Weight PVP As a Capping Agent and Their Application in Conductive Thin Films

Fahad

Wang³

et al. 2021

Journal of Elec Materi

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High molecular weight polyvinylpyrrolidone (PVP) and seeding conditions are considered to have important roles in the synthesis of AgNWs. In this work, we report a versatile synthesis of AgNWs in a salt-free environment and under Ar inert atmosphere using high molecular weight PVP and seeding step during the synthetic process. The high molecular weight PVP was found to efficiently promote the preparation of AgNWs via supporting the proper growth control of AgNWs on {111} facets and selective growth on {100} facets. The seeding step facilitates the formation of seeds such as multiple twinned nanoparticles (MTPs) and single crystal seeds, which promoted the feasible formation of AgNWs. The shape and size of the synthesized AgNWs were characterized by SEM and TEM. The crystalline nature of the synthesized AgNWs was characterized by HRTEM, SAED and XRD, and their LSPR peaks were confirmed by UV-Vis spectroscopy. The conductive properties of the synthesized AgNWs were determined by preparing their thin conductive film on a PET substrate. The prepared AgNWs thin films exhibited good sheet resistance.

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Section: Synthesis and Characterization Of Agnwsmentioning

confidence: 99%

Synthesis of AgNWs Using High Molecular Weight PVP As a Capping Agent and Their Application in Conductive Thin Films

Fahad

Wang³

et al. 2021

Journal of Elec Materi

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“…The curing of BOZ and EP has been shown an increase of cross-linking density and T g . 29,30,35,[40][41][42] This matrix was then reinforced with the use of two nanofillers, namely, Nanene-001 and Nanene-002. Mechanical testing was extended to include two novel mixed blend graphene fillers.…”

Section: Introductionmentioning

confidence: 99%

New nanocomposites based on poly(benzoxazine-co-epoxy) matrix reinforced by novel graphene single and mixed blend fillers

Cossey

Hodge²,

Karagiannidis

2023

Journal of Reinforced Plastics and Composites

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We report new nanocomposites with poly(benzoxazine-co-epoxy) matrix reinforced with 1 wt% graphene. Curabox 24-111, a benzoxazine resin was copolymerised with Epilok 60-566, a mixture of epoxy resins. Copolymerisation was also carried out in the presence of different graphene powders, namely, Nanene-001 and Nanene-002, used as single fillers and as mixture (relative weight ratio 70:30 or 30:70). DSC results showed the addition of either single filler caused a delay in polymerisation and an increase in the exothermic peak temperature of the curing reaction with a related reduction in ΔH Total. compared to the neat copolymer. Copolymerisation showed a 38% reduction and 24% increase in tensile modulus (E) compared to the neat polybenzoxazine and epoxy polymer, with a respective 18% and 30% reduction in tensile strength (TS). Nanocomposites with 0.7wt% Nanene-002 + 0.3 wt% Nanene-001 showed the highest increase of 35% in TS, a 1.6% reduction in E and 36% increase in elongation at break (EB) compared to the neat copolymer matrix. Samples with 1 wt% Nanene-001 showed the largest reduction of 21% in E, a 27% increase in TS and a 45% increase in EB. Additionally, TGA thermographs showed a 22°C increase in the onset of degradation (300°C–322°C) improving the materials thermal stability.

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“…Network structure has a significant effect on the properties of composites. Many researchers have studied the reaction mechanism of the network structure formation between EP composites with BOZ . The reaction is more complicated with amine hardeners than without hardeners .…”

Section: Introductionmentioning

confidence: 99%

Intrinsic flame‐retardant epoxy resin composites with benzoxazine: Effect of a catalyst and a low curing temperature

Chen

Song

Wang

et al. 2019

J of Applied Polymer Sci

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Three kinds of inherent flame‐retardant epoxy resin (EP) composites with 20 wt % benzoxazine (BOZ) were prepared with different curing processes with 2‐methyl‐1H‐imidazole (MI) as a catalyst or/and changes in the curing temperature. The effects of the curing process on the flame retardancy, thermal stability, mechanical properties, and curing behaviors were investigated. The composite with added MI cured at low temperature (EBM–LT) had the best properties. It possessed a 35.3% limiting oxygen index and achieved a UL 94 V‐0 rating. Thermogravimetric analysis indicated that EBM–LT had the best thermal stability among the three kinds of EP composites with BOZ. The EP composites with BOZ mainly displayed a condensed‐phase flame‐retardant mechanism. The mechanical properties improvement was attributed to the formation of a heterogeneous network. Differential scanning calorimetry indicated that MI reacted with EP and catalyzed the homopolymerization of BOZ, and EP reacted with BOZ. Fourier transform infrared spectroscopy analysis indicated that curing at lower temperature caused the formation of more homopolymers of BOZ. The relationship of the curing process, network structure, and properties of EP composites with BOZ was established; this could help with the design of high‐performance EP composites with BOZ. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47847.

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Fabrication and characteristics of graphene‐reinforced silver nanowire/polybenzoxazine/epoxy copolymer composite thin films

Cited by 4 publications

References 51 publications

Synthesis of AgNWs Using High Molecular Weight PVP As a Capping Agent and Their Application in Conductive Thin Films

Synthesis of AgNWs Using High Molecular Weight PVP As a Capping Agent and Their Application in Conductive Thin Films

New nanocomposites based on poly(benzoxazine-co-epoxy) matrix reinforced by novel graphene single and mixed blend fillers

Intrinsic flame‐retardant epoxy resin composites with benzoxazine: Effect of a catalyst and a low curing temperature

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