A study on rheological behavior of MWCNTs/epoxy composites

Park, Soo‐Jin; Bae, Kyong-Min; Seo, Min‐Kang

doi:10.1016/j.jiec.2010.01.051

Cited by 31 publications

(9 citation statements)

References 14 publications

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“…Failure can be manifested in many forms such as the breaking of fibers, microcracking of matrix, and separation of fibers from the matrix (debonding) [10]. Glass fiber (GF) is widely used as reinforcement in the manufacture of FRC materials with polymeric matrices [11] such as polyester, vinylester, phenolic, and epoxy resins [12]. However the stress transfer from the matrix to the GFs often presents a challenge to exploit the reinforcement role of fibers completely.…”

Section: Introductionmentioning

confidence: 99%

Grafting Carbon Nanotubes on Glass Fiber by Dip Coating Technique to Enhance Tensile and Interfacial Shear Strength

Jamnani

Hosseini

Rahmanian

et al. 2015

Journal of Nanomaterials

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The effects of noncovalent bonding and mechanical interlocking of carbon nanotubes (CNT) coating on tensile and interfacial strength of glass fiber were investigated. CNT were coated over glass fiber by a simple dip coating method. Acid treated CNT were suspended in isopropanol solution containing Nafion as binding agent. To achieve uniform distribution of CNT over the glass fiber, an optimized dispersion process was developed by two parameters: CNT concentration and soaking time. CNT concentration was varied from 0.4 to 2 mg/mL and soaking time was varied from 1 to 180 min. The provided micrographs demonstrated appropriate coating of CNT on glass fiber by use of CNT-Nafion mixture. The effects of CNT concentration and soaking time on coating layer were studied by performing single fiber tensile test and pull-out test. The obtained results showed that the optimum CNT concentration and soaking time were 1 mg/mL and 60 min, respectively, which led to significant improvement of tensile strength and interfacial shear stress. It was found that, at other concentrations and soaking times, CNT agglomeration or acutely curly tubes appeared over the fiber surface which caused a reduction of nanotubes interaction on the glass fiber.

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Section: Introductionmentioning

confidence: 99%

Grafting Carbon Nanotubes on Glass Fiber by Dip Coating Technique to Enhance Tensile and Interfacial Shear Strength

Jamnani

Hosseini

Rahmanian

et al. 2015

Journal of Nanomaterials

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“…Thermosetting materials, such as epoxy resin, are very important materials that are used widely in electronic packaging owing to their excellent chemical and corrosion resistance, electric and physical properties, high adhesion, low shrinkage on curing, and good thermal stability [1,2]. In the microelectronic industries, the mismatch in the coefficients of thermal expansion (CTE) between the silicon chip (*3 ppm/°C) and the organic substrate (*16-24 ppm/°C) will result in mechanical fatigue of the solder joints (*21-26 ppm/°C), leading to early failure of the interconnection.…”

Section: Introductionmentioning

confidence: 99%

Improvements in thermo-mechanical and rheological properties of SiO2/epoxy composites using different types of SiO2

Zhang

Zhu

et al. 2015

J Mater Sci: Mater Electron

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Single-size 400 nm-SiO 2 and multi-size 1 and 5 lm-SiO 2 were used as fillers in epoxy matrix. The fillers with the larger particle size and multi-size SiO 2 particles mixing is beneficial to lower the viscosity and increase the filler loading. Among the composites, the 60 wt% 5 lmSiO 2 epoxy composite has the best properties with both low coefficients of thermal expansion (CTE) of 28.8 ppm/°C and low viscosity of *50 Pa s, which shows its capability to achieve the required low CTE and viscosity values in the electronic packaging. Different theoretical proposals were used to estimate the CTE. Maxwell-Garnett equation fits the experimental data well. In addition, the mixture law and Bruggeman effective medium theory offer the upper and lower limits to the CTE.

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“…Epoxy resins are widely used as thermosetting resins to manufacture nanocomposites for adhesives, high‐performance coatings, packaging and lamination materials, as these resins have excellent electrical properties, low shrinkage and good adhesion to many metals, and resistance to moisture and thermal and mechanical shock 1–3. Despite these obvious advantages, epoxy resins are the main damage point for structural and electronic materials that are inadequate for applications requiring good thermal conductivities and electrical properties 4.…”

Section: Introductionmentioning

confidence: 99%

Rheological and thermal properties of epoxy nanocomposites reinforced with alkylated multi‐walled carbon nanotubes

Heo

Park

2012

Polymer International

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The effects of functionalized multi-walled carbon nanotubes (MWCNTs) on thermal and chemorheological behaviors of an epoxybased nanocomposite system were investigated. Chemical functionalization of MWCNTs by acid modification (A-MWCNTs) and chemical amidation (D-MWCNTs) was confirmed using Fourier transform infrared spectroscopy and thermogravimetric analysis. It was found that the D-MWCNTs had a significant effect on the chemorheological behaviors of the epoxy-based nanocomposite. Compared to the epoxy/A-MWCNT nanocomposite, the epoxy/D-MWCNTs nanocomposite showed a significant increase in gel time, as obtained from isothermal rheology measurements. Also, the storage modulus of the diglycidylether of bisphenol F (DGEBF)/D-MWCNTs nanocomposite was higher than that of the DGEBF/D-MWCNTs nanocomposite and gradually increased with an increase of frequency. This could be interpreted by the relatively strongly interconnected structure of the D-MWCNTs in the DGEBF epoxy resin, which arises from the functionalized alkyl groups of the D-MWCNTs in dispersion phases with the DGEBF epoxy resin.

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A study on rheological behavior of MWCNTs/epoxy composites

Cited by 31 publications

References 14 publications

Grafting Carbon Nanotubes on Glass Fiber by Dip Coating Technique to Enhance Tensile and Interfacial Shear Strength

Grafting Carbon Nanotubes on Glass Fiber by Dip Coating Technique to Enhance Tensile and Interfacial Shear Strength

Improvements in thermo-mechanical and rheological properties of SiO2/epoxy composites using different types of SiO2

Rheological and thermal properties of epoxy nanocomposites reinforced with alkylated multi‐walled carbon nanotubes

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