Novel Si/cyanate ester nanocomposites with multifunctional properties

Sun, Weixing; León, Joseba; Ma, Chaoqun; Tan, Xiaoli; Kessler, Michael R.

doi:10.1016/j.compscitech.2012.06.023

Cited by 22 publications

(23 citation statements)

References 17 publications

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“…The maximum tan δ is still only 0.033 for the specimen with 10 wt.% Si loading, making this material potentially suitable for energy storage. As shown in Table II, however, breakdown strength decreases significantly with respect to the increasing Si loading, which is consistent with a trend observed previously in Si/BECy composites [21]. The reason for this adverse effect may be inhomogeneous dispersion of the Si nanoparticles.…”

Section: Introductionsupporting

confidence: 90%

“…It is observed that T g increases slightly as nanofiller loading increases. This observation is different from the T g decrease observed previously in Si/BECy nanocomposites, for increasing Si content [21]. Compared with former studies of metal-oxide-filled nanocomposites, the nanocomposites studied here reveal a similar increase of permittivity [8] and storage modulus [22,23], whereas the slight increase of T g with increased filler loading observed here, was not seen in these former works.…”

Section: Introductioncontrasting

confidence: 82%

“…Silicon, as a semiconductive material, has been proven to effectively increase permittivity of bisphenol E cyanate ester (BECy) [21]. Importantly, the dielectric loss was preserved below 0.017 at room temperature even while adding 44 wt.% of Si nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Silicon/epoxy nanocomposites for capacitors as the energy storage element

Sun

Tan

Kessler

et al. 2013

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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Silicon/epoxy nanocomposites were synthesized in order to investigate potential improvement of electrical energy storage capability and mechanical properties of epoxy resin on addition of Si nanospheres. Nanospheres with mean diameter 130 nm were homogenized within epoxy monomers at 5 and 10 wt.%. The dielectric behavior of the resulting nanocomposites was investigated using broadband dielectric spectroscopy from 10 -2 to 10 6 Hz at room temperature. The dielectric constant, , of the composite with 10 wt.% Si loading is ~ 5.1 at 10 -2 Hz, a 25% increase compared with the value for neat epoxy, whereas tan δ remains low (< 0.035). On the other hand, a 17% increase of storage modulus was shown in the composite with 5 wt.% Si loading, compared with that of neat epoxy, and T g of the polymer matrix was slightly elevated with Si incorporation. The increases in both permittivity and storage modulus suggest that Si/epoxy nanocomposites are suitable for multifunctional application; e.g. as structural capacitors.

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Section: Introductionsupporting

confidence: 90%

Section: Introductioncontrasting

confidence: 82%

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Silicon/epoxy nanocomposites for capacitors as the energy storage element

Sun

Tan

Kessler

et al. 2013

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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“…It was reported that cyanate esters show good mechanical properties, and this property increases by adding various inorganic additives . Table shows the mechanical properties of the BADCy/nanodiamond composites.…”

Section: Resultsmentioning

confidence: 99%

Thermal conductivity and properties of cyanate Ester/nanodiamond composites

Şen

Kahraman

2014

Polymers for Advanced Techs

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The aim of this study was to improve thermal conductivity, thermal stability, and mechanical properties of bisphenol A dicyanate ester with the addition of nanodiamond. Cyanate ester/nanodiamond composites containing various ratios of nanodiamond were prepared. Thermal stability and thermal conductivity of the samples were evaluated by thermogravimetric analysis, differential scanning calorimetry, and laser flash method, respectively. The samples were characterized with the analysis such as gel content, water absorption capacity, and stress-strain test. Hydrophobicity of the samples was determined by contact angle measurements. Moreover, the surface morphology of the samples was investigated by a scanning electron microscopy. The obtained results prove that the cyanate ester/nanodiamond composites have good thermal and mechanical properties and can be used in many applications such as the electronic devices, materials engineering, and other emergent.

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“…It was reported that cyanate esters show good mechanical properties and these properties increase by adding various inorganic additives . Table shows the mechanical properties of the cyanate ester composites.…”

Section: Resultsmentioning

confidence: 99%

Preparation and properties of nano diamond/6F-bisphenol A-based cyanate ester composites

Şen

Kahraman

2013

Polym. Compos.

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The aim of this study was to improve thermal conductivity, thermal stability, and mechanical properties of bisphenol A dicyanate ester (BADCy) by adding bisphenol A dicyanate ester containing fluorine (F‐BADCy) and nano diamond. The cyanate esters containing fluorine/nano diamond composites having various ratios of BADCy, F‐BADCy, and nano diamond were prepared. Thermal stability and thermal conductivity of the samples were evaluated by thermogravimetric analysis, differential scanning calorimetry and laser flash method, respectively. The samples were characterized with the following analysis; gel content, water absorption capacity, and stress‐strain test. Hydrophobicity of the samples was determined by the contact angle measurements. Moreover, the surface morphology of the samples was investigated by a scanning electron microscopy (SEM). The obtained results prove that the cyanate ester containing fluorine/nano diamond composites have good thermal and mechanical properties and they can be used in many applications such as electronic devices, materials engineering, and other emergent. POLYM. COMPOS., 34:1977–1985, 2013. © 2013 Society of Plastics Engineers

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Novel Si/cyanate ester nanocomposites with multifunctional properties

Cited by 22 publications

References 17 publications

Silicon/epoxy nanocomposites for capacitors as the energy storage element

Silicon/epoxy nanocomposites for capacitors as the energy storage element

Thermal conductivity and properties of cyanate Ester/nanodiamond composites

Preparation and properties of nano diamond/6F-bisphenol A-based cyanate ester composites

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