Hooray for common sense

Ballard, Andy

doi:10.12968/sece.2009.2.1426

SecEd

2009

DOI: 10.12968/sece.2009.2.1426

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Hooray for common sense

Andy Ballard¹

Abstract: The scrapping of SATs has freed up 200 minutes a week, offering great opportunities at the end of year 9. Andy Ballard explains

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Influence of different percentages of N‐phenylaminopropyl—poss on the degradation kinetic of epoxy resin

2012

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In the present study, nanocomposites were prepared with different contents (1, 2, 5, 10% by weight) of polyhedral oligomeric silsesquioxane—POSS n‐phenylaminopropyl in an epoxy matrix. The samples were characterized by thermogravimetric analysis (TGA), transmission electron microscopy (TEM), and X‐ray diffraction (XRD). TGA analyses were performed at different heating rates to allow for the prediction of the kinetic parameters of degradation. XRD analyses were used to calculate the average molecular interchain spacing. TGA analysis showed that the presence of POSS increased the thermal stability of the nanocomposites. An increase in the activation energy on degradation was evidenced through the kinetic parameters, especially for the 10% POSS. Moreover, the addition of POSS changed the kinetic mechanism of the deceleratory mode (Fn) in favor of the diffusion (Dn) process. The diffusion mechanism is corroborated by the XRD analyses that showed the increase of distance between chains when was added POSS. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers

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Influence of different percentages of N‐phenylaminopropyl—poss on the degradation kinetic of epoxy resin

2012

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Potential improvement to a citric wastewater treatment plant using bio-hydrogen and a hybrid energy system

Zhi

Yang

Berthold

et al. 2010

Journal of Power Sources

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Hooray for common sense

Abstract: The scrapping of SATs has freed up 200 minutes a week, offering great opportunities at the end of year 9. Andy Ballard explains

Cited by 2 publications

References 0 publications

Influence of different percentages of N‐phenylaminopropyl—poss on the degradation kinetic of epoxy resin

Influence of different percentages of N‐phenylaminopropyl—poss on the degradation kinetic of epoxy resin

Potential improvement to a citric wastewater treatment plant using bio-hydrogen and a hybrid energy system

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