Fumed silica concentration effect on structure and dielectric properties of a styrene-cross-linked unsaturated polyester resin

Gorelov, B. M.; Polovina, Oleksiy; Gorb, Alla; Dacko, S.; Kostrzewa, M.; Ingram, Adam

doi:10.1063/1.4764328

Cited by 3 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A fast timing configuration of the "Ortec" positron lifetime system was used to obtain the positron annihilation spectra (see [6] for details). The analysis of the positron annihilation spectra was performed by using the LT-programm [37] with no constrains imposed on the lifetime components.…”

Section: Experimental Methods and Theoretical Toolsmentioning

confidence: 99%

Nonlinear Loading Effects in Oxide-filled Polyester Nanocomposites Observed by IR-spectroscopy and Lifetime Positron Spectroscopy

Gorelov¹,

Polovina²,

Gorb³

et al. 2018

ujms

View full text Add to dashboard Cite

Impact of nanosized oxide particles of titania (rutile) (TiO 2) and silica-titania fumed compound on physical properties related to inner structure of a styrene-cross-linked polyester resin have been experimentally studied. The IR-spectroscopy and the positron annihilation lifetime spectroscopy (PAL) were used to study the electronic polarizability of interatomic bonds and the positron annihilation processes with increasing the filler loading. All the nanocomposites show unmonotonous variations in the IR-absorption lines and the positron annihilation parameters. Three lifetime components, namely τ 1 , τ 2 , and τ 3 with intensities I 1 , I 2 , and I 3 have been determined. The lifetime loading dependences exhibit non-monotonous lowering within the low loading range (C m ≤ 5%) with the minima values at C m ∼ 1.5 % for the unfilled resin and the nanocomposites. The free-volume portion f v (in %) in a polymer matrix decreases droningly for the nanocomposites with STO-particles upon loading while for the TiO 2-nanocomposites it increases non-monotonously. The parameters describing the supramolecular structure of the nanocomposites have been calculated using the fractal approach. Some correlations between loading-dependent PAL-properties and underlying alterations in the resin's supramolecular structure have been discussed.

show abstract

Section: Experimental Methods and Theoretical Toolsmentioning

confidence: 99%

Nonlinear Loading Effects in Oxide-filled Polyester Nanocomposites Observed by IR-spectroscopy and Lifetime Positron Spectroscopy

Gorelov¹,

Polovina²,

Gorb³

et al. 2018

ujms

View full text Add to dashboard Cite

show abstract

“…Unsaturated polyester resins have a good balance of mechanical, electrical, thermal and chemical resistance properties at relatively low cost, hence the global industrial market demand for polyester resins continues to grow substantially in a variety of applications, ranging from automobile and electronic equipment to packaging and building materials [1,2]. However, in polyester resin production, approximately 0.2-0.3 m 3 wastewater per ton polyester resin is generated with the chemical oxygen demand (COD) concentration of 3-20 g L -1 .…”

Section: Introductionmentioning

confidence: 99%

High efficient alternating anaerobic/aerobic process for polyester resin wastewater treatment: Performance and microbial community structure

Sun

Zhou

et al. 2018

Biochemical Engineering Journal

View full text Add to dashboard Cite

“…The unsaturated polyester resin (UPR), which belongs to thermosetting polymers, demonstrates a good combination of mechanical and electric parameters and resistivity to chemically aggressive environments, and it is a good matrix for preparing composite materials with improved functional parameters . In addition, because of the relatively low cost of the polyester resin, its composites are promising it's the manufacture of construction components in both domestic and industrial applications …”

Section: Introductionmentioning

confidence: 99%

Impact of titanium and silica/titanium fumed oxide nanofillers on the elastic properties and thermal decomposition of a polyester resin

Gorelov

Gorb

Korotchenkov

et al. 2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

The impact of nanoparticles of titanium (rutile) and silica–titanium fumed oxide (STO) on both the acoustic properties and thermal decomposition of a styrene‐crosslinked unsaturated polyester resin were studied with the methods of ultrasonic probing and thermal decomposition mass spectrometry at filler loadings ranging from 0.5 to 5.0%. It was shown that the elastic modulus, Poisson's ratio, and thermal resistivity in the titanium‐filled nanocomposites increased at small loadings of about 0.5%, whereas in the STO‐filled nanoparticles, the decreases in the parameters at loadings of up to 1.5% was replaced by some increases at higher loadings of up to 5.0%. Distinctions in the concentration dependences of the elastic parameters and the thermal decomposition intensity for both fillers could be explained by the features of the polymer–particle interactions because of the differences in both the number of active sites located on the particle's surface and the polymer structure within interface regions. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42010.

show abstract

Fumed silica concentration effect on structure and dielectric properties of a styrene-cross-linked unsaturated polyester resin

Cited by 3 publications

References 46 publications

Nonlinear Loading Effects in Oxide-filled Polyester Nanocomposites Observed by IR-spectroscopy and Lifetime Positron Spectroscopy

Nonlinear Loading Effects in Oxide-filled Polyester Nanocomposites Observed by IR-spectroscopy and Lifetime Positron Spectroscopy

High efficient alternating anaerobic/aerobic process for polyester resin wastewater treatment: Performance and microbial community structure

Impact of titanium and silica/titanium fumed oxide nanofillers on the elastic properties and thermal decomposition of a polyester resin

Contact Info

Product

Resources

About