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3 results on '"PVB/SiO2 nanofibers"'

1. Aramid composites impregnated with different reinforcement: Nanofibers, nanoparticles and nanotubes

Author

Vera Obradović, Dušica Stojanović, Aleksandar Kojović, Irena Živković, Vesna Radojević, Petar Uskoković, and Radoslav Aleksić

Subjects
p-aramid composites, silica nanoparticles, carbon nanotubes, ameo silane, pvb/sio2 nanofibers, ballistic testing, impact testing, Chemical technology, TP1-1185
Abstract

In this study, the electrospun nanofibers, nanoparticles and nanotubes were used as reinforcement in order to improve mechanical properties of materials for ballistic protection. The samples of polyurethane/p-aramid multiaxial fabric forms (Twaron fabrics and Colon fabrics) were impregnated with poly (vinyl butyral) (PVB) ethanol solution with the different content of reinforcement. Due to the improvement in mechanical, ballistic and impact properties, the surface modification of the fabrics with γ-aminopropyltriethoxysilane (AMEO silane)/ethanol solution was used and silica nanoparticles were modified with AMEO silane. This study is divided into three parts of research: electrospinning process, ballistic testing of the p-aramid composites and impact tester analysis of the Colon composites. The mechanical properties of all the composites were tested by the dynamic mechanical analysis (DMA).

Published
2014
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2. Aramidni kompoziti impregnisani sa različitim ojačanjima - nanovlakna, nanočestice i nanocevi

Author

Irena Zivkovic, Vesna Radojević, Dušica B. Stojanović, Vera Obradović, Radoslav Aleksić, Aleksandar Kojović, and Petar S. Uskoković

Subjects
PVB/SiO2 nanovlakna, Materials science, ugljenične nanocevi, impact testing, balističko testiranje, Nanoparticle, silika nanočestice, 02 engineering and technology, silica nanoparticles, 01 natural sciences, chemistry.chemical_compound, 0103 physical sciences, AMEO silan, General Materials Science, Composite material, PVB/SiO2 nanofibers, Polyurethane, 010302 applied physics, carbon nanotubes, impakt testiranje, p-aramid composites, Dynamic mechanical analysis, 021001 nanoscience & nanotechnology, Silane, p-aramidni kompoziti, Electrospinning, AMEO silane, Aramid, ballistic testing, chemistry, Nanofiber, Surface modification, 0210 nano-technology
Abstract

In this study, the electrospun nanofibers, nanoparticles and nanotubes were used as reinforcement in order to improve mechanical properties of materials for ballistic protection. The samples of polyurethane/p-aramid multiaxial fabric forms (Twaron fabrics and Colon fabrics) were impregnated with poly (vinyl butyral) (PVB) ethanol solution with the different content of reinforcement. Due to the improvement in mechanical, ballistic and impact properties, the surface modification of the fabrics with γ-aminopropyltriethoxysilane (AMEO silane)/ethanol solution was used and silica nanoparticles were modified with AMEO silane. This study is divided into three parts of research: electrospinning process, ballistic testing of the p-aramid composites and impact tester analysis of the Colon composites. The mechanical properties of all the composites were tested by the dynamic mechanical analysis (DMA). U ovom istraživanju su se elektrospinovana vlakna, nanočestice i nanocevi koristili kao ojačanja koja bi unapredila mehanička svojstva materijala za balističku zaštitu. Uzorci poliuretan/paramidnih multiaksijalnih lamina (Twaron i Kolon lamine) su impregnisani sa poli(vinil butiral)(PVB)/etanol rastvorom sa različitim sadržajem ojačanja. Radi poboljšanja mehaničkih, balističkih i impakt svojstava, modifikovala se površina lamina sa γ-aminopropiltrietoksisilanom (AMEO silan)/etanol rastvorom i koristile su se silika nanočestice modifikovane AMEO silanom. Ovaj rad je podeljen na tri dela istraživanja: proces elektrospininga, balističko testiranje paramidnih kompozita i impakt tester analiza Kolon kompozita. Mehanička svojstva svih kompozita su bila testirana pomoću dinamičko mehaničke analize (DMA).

Published
2014

3. Aramid composites impregnated with different reinforcement: Nanofibers, nanoparticles and nanotubes

Author

Obradović, Vera, Stojanović, Dušica, Kojović, Aleksandar, Živković, Irena, Radojević, Vesna, Uskoković, Petar, Aleksić, Radoslav, Obradović, Vera, Stojanović, Dušica, Kojović, Aleksandar, Živković, Irena, Radojević, Vesna, Uskoković, Petar, and Aleksić, Radoslav

Abstract

In this study, the electrospun nanofibers, nanoparticles and nanotubes were used as reinforcement in order to improve mechanical properties of materials for ballistic protection. The samples of polyurethane/p-aramid multiaxial fabric forms (Twaron fabrics and Colon fabrics) were impregnated with poly (vinyl butyral) (PVB) ethanol solution with the different content of reinforcement. Due to the improvement in mechanical, ballistic and impact properties, the surface modification of the fabrics with γ-aminopropyltriethoxysilane (AMEO silane)/ethanol solution was used and silica nanoparticles were modified with AMEO silane. This study is divided into three parts of research: electrospinning process, ballistic testing of the p-aramid composites and impact tester analysis of the Colon composites. The mechanical properties of all the composites were tested by the dynamic mechanical analysis (DMA)., U ovom istraživanju su se elektrospinovana vlakna, nanočestice i nanocevi koristili kao ojačanja koja bi unapredila mehanička svojstva materijala za balističku zaštitu. Uzorci poliuretan/paramidnih multiaksijalnih lamina (Twaron i Kolon lamine) su impregnisani sa poli(vinil butiral)(PVB)/etanol rastvorom sa različitim sadržajem ojačanja. Radi poboljšanja mehaničkih, balističkih i impakt svojstava, modifikovala se površina lamina sa γ-aminopropiltrietoksisilanom (AMEO silan)/etanol rastvorom i koristile su se silika nanočestice modifikovane AMEO silanom. Ovaj rad je podeljen na tri dela istraživanja: proces elektrospininga, balističko testiranje paramidnih kompozita i impakt tester analiza Kolon kompozita. Mehanička svojstva svih kompozita su bila testirana pomoću dinamičko mehaničke analize (DMA).

Published
2014

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