Effect of particle size on mechanical properties of epoxy resin filled with angular‐shaped silica

Nakamura, Yoshinobu; Yamaguchi, Midori; Okubo, Masayoshi; Matsumoto, Tsunetaka

doi:10.1002/app.1992.070440116

Cited by 100 publications

(56 citation statements)

References 13 publications

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“…It has a reported inherent viscosity of 0.87 dL/g measured at a concentration of 0.5 g/dL in H 2 SO 4 . The particulate used in the preparation of composites was Al 2 O 3 powder of density 4.00 g/cm 3 . It was used as supplied by Aldrich Chemical Company.…”

Section: Methodsmentioning

confidence: 99%

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High performance polymer composites on PEEK reinforced with aluminum oxide

Goyal

Negi

Tiwari

2006

J of Applied Polymer Sci

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A study on high performance poly(etherether-ketone) (PEEK) composites prepared by incorporating aluminum oxide (Al 2 O 3 ), 0 to 50 wt % by hot compaction at 15 MPa and 350°C was described. Density, thermogravimetric analysis/differential scanning calorimetry, and scanning electron microscopy (SEM) were employed to evaluate their density, thermal stability, crystallinity, and morphology. Experimental density was found higher than theoretical density, which indicates that composite samples are sound. It was found that the addition of micron sized (Ͻ 15 m) Al 2 O 3 increased the peak crystallization temperature by 12°C when compared with neat PEEK with insignificant increase in melting temperature. Half-time of crystallization is reduced from 2.05 min for the neat PEEK to 1.08 min for PEEK incorporated with 30 wt % Al 2 O 3 because of the strong nucleation effect of Al 2 O 3 . The thermal stability of composites in air atmosphere was increased by 26°C. However, thermal stability in nitrogen atmosphere decreases at lower concentration of Al 2 O 3 but increases above 20 wt % of Al 2 O 3 . Uniform dispersion of Al 2 O 3 particles was observed in PEEK polymer matrix by SEM.

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Section: Methodsmentioning

confidence: 99%

“…[1][2][3][4][5][6] The addition of inorganic fillers or particles to a polymer has been a common practice to improve the mechanical properties. Among inorganic fillers, calcium carbonate has been one of the most commonly used fillers for commodity plastics such as HDPE 6 and polypropylene (PP), 7 to reduce the cost of the expensive resins.…”

Section: Introductionmentioning

confidence: 99%

High performance polymer composites on PEEK reinforced with aluminum oxide

Goyal

Negi

Tiwari

2006

J of Applied Polymer Sci

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“…On the other hand, the decrease in particle size can increase the strength as long as the particles are well dispersed (Nakamura et al 1992;Pukanszky and Vörös 1993;Radford 1971).…”

Section: Introductionmentioning

confidence: 99%

Development of an image-based numerical model for predicting the microstructure–property relationship in alumina trihydrate (ATH) filled poly(methyl methacrylate) (PMMA)

2018

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Particulate composites are found in a wide range of applications. Their heterogeneous microstructure affects their bulk behavior and structural performance, however tools for predicting this important structure-property relationship are still lacking. In this study, a numerical method that can provide predictions of the mechanical response of a particulate polymeric matrix composite as a function of volume fraction and particle mean diameter is presented. The work is derived for an alumina trihydrate filled poly(methyl methacrylate) but the methodology is generic and can be used for any particulate composite. Representative Volume elements are determined through images obtained from scanning electron microscopy. The model takes into account the possibility of failure through interface debonding as well as cracks through the matrix. The model predictions for the modulus and fracture strength of the composites are validated through independent experiments on the composite. The numerical results are also used to qualitatively explain the trends measured regarding the fracture toughness of the composites. Compared to other literature on particulate composites, our study is the first to report accurate stress-strain distributions as well as fracture predictions whilst all the necessary model parameters defining the failure criteria are all derived through independent experiments. This paves R. Zhang · J. Y. S. Li-Mayer · M. N. Charalambides (B) Department of Mechanical Engineering, Imperial College London, South Kensington, London SW7 2AZ, UK e-mail: m.charalambides@imperial.ac.uk the way for a relatively simple methodology for determining structure-property relationships in composites design, enabling smarter material utilization and optimal mechanical properties.

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“…They include the aspect ratio of the filler [5,17], the orientation of the fillers, interfacial interaction and the nature of the failure [5]. From the studies reported [18,24,[28][29][30][31][32][33][34][35][36], it seems that there is a critical particle size, usually in nanoscale, above which there is no effect on Treated Titanium Dioxide Dispersion/Natural Rubber Latex composite modulus. When the particle size is below this critical value, the effect on composite modulus is more significant.…”

Section: Resultsmentioning

confidence: 99%

Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

Ochigbo¹,

Luyt²

2012

CMATERIALS

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Titanium dioxide dispersion was sonicated as an attempt to reduce its particle sizes and thereafter used as fillers in making natural rubber (NR) composite films. Fillers of reduced particle sizes, owing to enhanced surface areas and aspect ratios, usually result in unique property improvements. The reinforcing effects of untreated and sonicated samples of the fillers were, therefore, compared through the measurement of tensile properties of the dry films. Results, however, indicated a monotonic decrease in moduli with filler content, contrary to behaviour due to conventional fillers, but showed improvement in both elongation at break and tensile strength data at low filler concentration (2phr), and thereafter a decrease in the trend. The affinity between the filler and matrix was examined using the composite theory of Einstein. Theoretical prediction of Young's moduli from this was compared against experimental data and it was found that there was certain level of interfacial interaction.

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Effect of particle size on mechanical properties of epoxy resin filled with angular‐shaped silica

Cited by 100 publications

References 13 publications

High performance polymer composites on PEEK reinforced with aluminum oxide

High performance polymer composites on PEEK reinforced with aluminum oxide

Development of an image-based numerical model for predicting the microstructure–property relationship in alumina trihydrate (ATH) filled poly(methyl methacrylate) (PMMA)

Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

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