D'Almeida, Jose Roberto

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orcid::0000-0002-0026-1863
  • D'Almeida, Jose Roberto (5)
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Author's Bibliography

Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes

Mančić, Lidija; Osman, Renata F. M.; Costa, Antonio Mario Leal Martins; D'Almeida, Jose Roberto; Marinković, Bojan A.; Rizzo, Fernando C.

(Elsevier, 2015)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Osman, Renata F. M.
AU  - Costa, Antonio Mario Leal Martins
AU  - D'Almeida, Jose Roberto
AU  - Marinković, Bojan A.
AU  - Rizzo, Fernando C.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/3517
AB  - The preparation of polyamide 11 (PA11) based composites reinforced with pristine and surface-modified titanate nanotubes (TTNT) is reported. Twin-screw melt compounding was used to produce composites with up to 2. wt% of TTNT. To enhance dispersion and TTNT compatibility with the thermoplastic, these were modified with cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS). Fourier transform infrared spectroscopy and thermogravimetry were used to demonstrate that surface modification prior to composite processing was successful, while scanning transmission electron microscopy combined with energy-dispersive X-ray analysis confirmed the retention of surfactants on TTNT in composites. Nevertheless, scanning and transmission electron microscopy revealed incomplete dispersion of TTNT inside polyamide. The improved wettability on the TTNT-PA11 interface was observed for composites comprising surface-modified TTNT. Consequently, these composites exhibited better thermal and mechanical properties than those containing pristine TTNT. A significant rise of the decomposition temperature was detected in composites containing TTNT modified with CTAB, while the uppermost increment of the storage and Young's modulus (of about 35% and 26%, respectively) was achieved in the composite comprising 0.5. wt% of TTNT modified with SDS. The increase of the nanofiller content improved the yield strength and led to the drop in the strain at break. © 2015 Elsevier Ltd.
PB  - Elsevier
T2  - Materials and Design
T1  - Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes
SP  - 459
EP  - 467
VL  - 83
DO  - 10.1016/j.matdes.2015.06.059
UR  - https://hdl.handle.net/21.15107/rcub_dais_3517
ER  - 
@article{
author = "Mančić, Lidija and Osman, Renata F. M. and Costa, Antonio Mario Leal Martins and D'Almeida, Jose Roberto and Marinković, Bojan A. and Rizzo, Fernando C.",
year = "2015",
abstract = "The preparation of polyamide 11 (PA11) based composites reinforced with pristine and surface-modified titanate nanotubes (TTNT) is reported. Twin-screw melt compounding was used to produce composites with up to 2. wt% of TTNT. To enhance dispersion and TTNT compatibility with the thermoplastic, these were modified with cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS). Fourier transform infrared spectroscopy and thermogravimetry were used to demonstrate that surface modification prior to composite processing was successful, while scanning transmission electron microscopy combined with energy-dispersive X-ray analysis confirmed the retention of surfactants on TTNT in composites. Nevertheless, scanning and transmission electron microscopy revealed incomplete dispersion of TTNT inside polyamide. The improved wettability on the TTNT-PA11 interface was observed for composites comprising surface-modified TTNT. Consequently, these composites exhibited better thermal and mechanical properties than those containing pristine TTNT. A significant rise of the decomposition temperature was detected in composites containing TTNT modified with CTAB, while the uppermost increment of the storage and Young's modulus (of about 35% and 26%, respectively) was achieved in the composite comprising 0.5. wt% of TTNT modified with SDS. The increase of the nanofiller content improved the yield strength and led to the drop in the strain at break. © 2015 Elsevier Ltd.",
publisher = "Elsevier",
journal = "Materials and Design",
title = "Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes",
pages = "459-467",
volume = "83",
doi = "10.1016/j.matdes.2015.06.059",
url = "https://hdl.handle.net/21.15107/rcub_dais_3517"
}
Mančić, L., Osman, R. F. M., Costa, A. M. L. M., D'Almeida, J. R., Marinković, B. A.,& Rizzo, F. C.. (2015). Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes. in Materials and Design
Elsevier., 83, 459-467.
https://doi.org/10.1016/j.matdes.2015.06.059
https://hdl.handle.net/21.15107/rcub_dais_3517
Mančić L, Osman RFM, Costa AMLM, D'Almeida JR, Marinković BA, Rizzo FC. Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes. in Materials and Design. 2015;83:459-467.
doi:10.1016/j.matdes.2015.06.059
https://hdl.handle.net/21.15107/rcub_dais_3517 .
Mančić, Lidija, Osman, Renata F. M., Costa, Antonio Mario Leal Martins, D'Almeida, Jose Roberto, Marinković, Bojan A., Rizzo, Fernando C., "Thermal and mechanical properties of polyamide 11 based composites reinforced with surface modified titanate nanotubes" in Materials and Design, 83 (2015):459-467,
https://doi.org/10.1016/j.matdes.2015.06.059 .,
https://hdl.handle.net/21.15107/rcub_dais_3517 .
31
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Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion

Soares, Alexandre Roberto; Pontón, Patricia I.; Mančić, Lidija; D'Almeida, Jose Roberto; Romao, Carl P.; White, Mary Ann; Marinković, Bojan

(Springer, 2014)

TY  - JOUR
AU  - Soares, Alexandre Roberto
AU  - Pontón, Patricia I.
AU  - Mančić, Lidija
AU  - D'Almeida, Jose Roberto
AU  - Romao, Carl P.
AU  - White, Mary Ann
AU  - Marinković, Bojan
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/664
AB  - Recently, polymer composites reinforced with low fractions of thermomiotic nanoceramics have triggered a lot of research. The efforts have been focused on achieving considerable reduction of the coefficient of thermal expansion (CTE) of polymeric materials without deterioration of other physical properties. In this context, polyethylene (PE) composites reinforced with different loads of Al2Mo3O12 nanofillers (0.5–4 mass %) were fabricated by micro-compounding. To enhance the interfacial interaction between the two components, chemical functionalization of Al2Mo3O12 was performed with vinyltrimethoxysilane (VTMS) prior to micro-compounding. Infrared spectroscopy and thermogravimetry demonstrated the successful grafting of VTMS on the Al2Mo3O12 surface. The composites showed strongly decreased CTEs, up to 46 % reduction for loadings of 4 mass % compared with neat PE, suggesting intimate filler–matrix interactions. The variation of CTEs of the composites in terms of the filler fraction was successfully described by Turner’s model allowing calculation of the bulk modulus of monoclinic Al2Mo3O12 (13.6 ± 2.6 GPa), in agreement with the value obtained by an ultrasonic method. The thermal stability of the composites was improved, although the addition of functionalized fillers decreased the degree of crystallinity of the PE to a small extent. The Young’s modulus and yield strength of the composites increased from 6.6 to 19.1 % and 4.0–6.0 %, respectively, supporting the existence of strong filler–matrix interactions, contributing to an efficient load transfer. Finite element analysis of thermal stresses indicated absence of plastic deformation of the matrix or fracture of the nanofillers, for a 100 K temperature drop.
PB  - Springer
T2  - Journal of Materials Science
T1  - Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion
SP  - 7870
EP  - 7882
VL  - 49
IS  - 22
DO  - 10.1007/s10853-014-8498-3
UR  - https://hdl.handle.net/21.15107/rcub_dais_664
ER  - 
@article{
author = "Soares, Alexandre Roberto and Pontón, Patricia I. and Mančić, Lidija and D'Almeida, Jose Roberto and Romao, Carl P. and White, Mary Ann and Marinković, Bojan",
year = "2014",
abstract = "Recently, polymer composites reinforced with low fractions of thermomiotic nanoceramics have triggered a lot of research. The efforts have been focused on achieving considerable reduction of the coefficient of thermal expansion (CTE) of polymeric materials without deterioration of other physical properties. In this context, polyethylene (PE) composites reinforced with different loads of Al2Mo3O12 nanofillers (0.5–4 mass %) were fabricated by micro-compounding. To enhance the interfacial interaction between the two components, chemical functionalization of Al2Mo3O12 was performed with vinyltrimethoxysilane (VTMS) prior to micro-compounding. Infrared spectroscopy and thermogravimetry demonstrated the successful grafting of VTMS on the Al2Mo3O12 surface. The composites showed strongly decreased CTEs, up to 46 % reduction for loadings of 4 mass % compared with neat PE, suggesting intimate filler–matrix interactions. The variation of CTEs of the composites in terms of the filler fraction was successfully described by Turner’s model allowing calculation of the bulk modulus of monoclinic Al2Mo3O12 (13.6 ± 2.6 GPa), in agreement with the value obtained by an ultrasonic method. The thermal stability of the composites was improved, although the addition of functionalized fillers decreased the degree of crystallinity of the PE to a small extent. The Young’s modulus and yield strength of the composites increased from 6.6 to 19.1 % and 4.0–6.0 %, respectively, supporting the existence of strong filler–matrix interactions, contributing to an efficient load transfer. Finite element analysis of thermal stresses indicated absence of plastic deformation of the matrix or fracture of the nanofillers, for a 100 K temperature drop.",
publisher = "Springer",
journal = "Journal of Materials Science",
title = "Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion",
pages = "7870-7882",
volume = "49",
number = "22",
doi = "10.1007/s10853-014-8498-3",
url = "https://hdl.handle.net/21.15107/rcub_dais_664"
}
Soares, A. R., Pontón, P. I., Mančić, L., D'Almeida, J. R., Romao, C. P., White, M. A.,& Marinković, B.. (2014). Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion. in Journal of Materials Science
Springer., 49(22), 7870-7882.
https://doi.org/10.1007/s10853-014-8498-3
https://hdl.handle.net/21.15107/rcub_dais_664
Soares AR, Pontón PI, Mančić L, D'Almeida JR, Romao CP, White MA, Marinković B. Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion. in Journal of Materials Science. 2014;49(22):7870-7882.
doi:10.1007/s10853-014-8498-3
https://hdl.handle.net/21.15107/rcub_dais_664 .
Soares, Alexandre Roberto, Pontón, Patricia I., Mančić, Lidija, D'Almeida, Jose Roberto, Romao, Carl P., White, Mary Ann, Marinković, Bojan, "Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion" in Journal of Materials Science, 49, no. 22 (2014):7870-7882,
https://doi.org/10.1007/s10853-014-8498-3 .,
https://hdl.handle.net/21.15107/rcub_dais_664 .
26
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Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion

Soares, Alexandre Roberto; Pontón, Patricia I.; Mančić, Lidija; D'Almeida, Jose Roberto; Romao, Carl P.; White, Mary Ann; Marinković, Bojan

(2014)

TY  - JOUR
AU  - Soares, Alexandre Roberto
AU  - Pontón, Patricia I.
AU  - Mančić, Lidija
AU  - D'Almeida, Jose Roberto
AU  - Romao, Carl P.
AU  - White, Mary Ann
AU  - Marinković, Bojan
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/567
AB  - Recently, polymer composites reinforced with low fractions of thermomiotic nanoceramics have triggered a lot of research. The efforts have been focused on achieving considerable reduction of the coefficient of thermal expansion (CTE) of polymeric materials without deterioration of other physical properties. In this context, polyethylene (PE) composites reinforced with different loads of Al2Mo3O12 nanofillers (0.5–4 mass %) were fabricated by micro-compounding. To enhance the interfacial interaction between the two components, chemical functionalization of Al2Mo3O12 was performed with vinyltrimethoxysilane (VTMS) prior to micro-compounding. Infrared spectroscopy and thermogravimetry demonstrated the successful grafting of VTMS on the Al2Mo3O12 surface. The composites showed strongly decreased CTEs, up to 46 % reduction for loadings of 4 mass % compared with neat PE, suggesting intimate filler–matrix interactions. The variation of CTEs of the composites in terms of the filler fraction was successfully described by Turner’s model allowing calculation of the bulk modulus of monoclinic Al2Mo3O12 (13.6 ± 2.6 GPa), in agreement with the value obtained by an ultrasonic method. The thermal stability of the composites was improved, although the addition of functionalized fillers decreased the degree of crystallinity of the PE to a small extent. The Young’s modulus and yield strength of the composites increased from 6.6 to 19.1 % and 4.0–6.0 %, respectively, supporting the existence of strong filler–matrix interactions, contributing to an efficient load transfer. Finite element analysis of thermal stresses indicated absence of plastic deformation of the matrix or fracture of the nanofillers, for a 100 K temperature drop.
T2  - Journal of Materials Science
T1  - Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion
SP  - 7870
EP  - 7882
VL  - 49
IS  - 22
DO  - 10.1007/s10853-014-8498-3
UR  - https://hdl.handle.net/21.15107/rcub_dais_567
ER  - 
@article{
author = "Soares, Alexandre Roberto and Pontón, Patricia I. and Mančić, Lidija and D'Almeida, Jose Roberto and Romao, Carl P. and White, Mary Ann and Marinković, Bojan",
year = "2014",
abstract = "Recently, polymer composites reinforced with low fractions of thermomiotic nanoceramics have triggered a lot of research. The efforts have been focused on achieving considerable reduction of the coefficient of thermal expansion (CTE) of polymeric materials without deterioration of other physical properties. In this context, polyethylene (PE) composites reinforced with different loads of Al2Mo3O12 nanofillers (0.5–4 mass %) were fabricated by micro-compounding. To enhance the interfacial interaction between the two components, chemical functionalization of Al2Mo3O12 was performed with vinyltrimethoxysilane (VTMS) prior to micro-compounding. Infrared spectroscopy and thermogravimetry demonstrated the successful grafting of VTMS on the Al2Mo3O12 surface. The composites showed strongly decreased CTEs, up to 46 % reduction for loadings of 4 mass % compared with neat PE, suggesting intimate filler–matrix interactions. The variation of CTEs of the composites in terms of the filler fraction was successfully described by Turner’s model allowing calculation of the bulk modulus of monoclinic Al2Mo3O12 (13.6 ± 2.6 GPa), in agreement with the value obtained by an ultrasonic method. The thermal stability of the composites was improved, although the addition of functionalized fillers decreased the degree of crystallinity of the PE to a small extent. The Young’s modulus and yield strength of the composites increased from 6.6 to 19.1 % and 4.0–6.0 %, respectively, supporting the existence of strong filler–matrix interactions, contributing to an efficient load transfer. Finite element analysis of thermal stresses indicated absence of plastic deformation of the matrix or fracture of the nanofillers, for a 100 K temperature drop.",
journal = "Journal of Materials Science",
title = "Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion",
pages = "7870-7882",
volume = "49",
number = "22",
doi = "10.1007/s10853-014-8498-3",
url = "https://hdl.handle.net/21.15107/rcub_dais_567"
}
Soares, A. R., Pontón, P. I., Mančić, L., D'Almeida, J. R., Romao, C. P., White, M. A.,& Marinković, B.. (2014). Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion. in Journal of Materials Science, 49(22), 7870-7882.
https://doi.org/10.1007/s10853-014-8498-3
https://hdl.handle.net/21.15107/rcub_dais_567
Soares AR, Pontón PI, Mančić L, D'Almeida JR, Romao CP, White MA, Marinković B. Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion. in Journal of Materials Science. 2014;49(22):7870-7882.
doi:10.1007/s10853-014-8498-3
https://hdl.handle.net/21.15107/rcub_dais_567 .
Soares, Alexandre Roberto, Pontón, Patricia I., Mančić, Lidija, D'Almeida, Jose Roberto, Romao, Carl P., White, Mary Ann, Marinković, Bojan, "Al2Mo3O12/polyethylene composites with reduced coefficient of thermal expansion" in Journal of Materials Science, 49, no. 22 (2014):7870-7882,
https://doi.org/10.1007/s10853-014-8498-3 .,
https://hdl.handle.net/21.15107/rcub_dais_567 .
26
23
26

The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency

Pontón, Patricia I.; D'Almeida, Jose Roberto; Marinković, Bojan; Savić, Slavica M.; Mančić, Lidija; Rey, Nicolás; Morgado, Edisson Jr.; Rizzo, Fernando C.

(Elsevier, 2014)

TY  - JOUR
AU  - Pontón, Patricia I.
AU  - D'Almeida, Jose Roberto
AU  - Marinković, Bojan
AU  - Savić, Slavica M.
AU  - Mančić, Lidija
AU  - Rey, Nicolás
AU  - Morgado, Edisson Jr.
AU  - Rizzo, Fernando C.
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/565
AB  - One of the major challenges in the development of nanocomposites based on a polymer matrix and highly polar ceramic nanofillers is the lack of the compatibility between these two components. In order to improve the chemical interaction between titanate nanotubes (TTNT) and polymer matrix, such as nylon 11,3-aminopropyltriethoxysilane (APTES) was grafted onto TTNT. The effects of the TTNT chemical composition i.e. sodium content and solvent type on the grafting silane efficiency were thoroughly studied through CHN elemental analysis, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), surface area and zeta potential measurements. The present study brings evidences supporting aqueous ethanol as more efficient reaction medium for TTNT functionalization with APTES, independent of the sodium content of nanotubes, when compared with pure water. It is also worth noting that within aqueous ethanol medium, TTNT with low sodium content are more efficiently grafted than TTNT with high sodium content. Successful APTES grafting decreases concentration of the hydroxyl groups on TTNT surfaces and enables its future application for the fabrication of nylon 11 nanocomposites.
PB  - Elsevier
T2  - Applied Surface Science
T1  - The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency
SP  - 315
EP  - 322
VL  - 301
DO  - 10.1016/j.apsusc.2014.02.071
UR  - https://hdl.handle.net/21.15107/rcub_dais_565
ER  - 
@article{
author = "Pontón, Patricia I. and D'Almeida, Jose Roberto and Marinković, Bojan and Savić, Slavica M. and Mančić, Lidija and Rey, Nicolás and Morgado, Edisson Jr. and Rizzo, Fernando C.",
year = "2014",
abstract = "One of the major challenges in the development of nanocomposites based on a polymer matrix and highly polar ceramic nanofillers is the lack of the compatibility between these two components. In order to improve the chemical interaction between titanate nanotubes (TTNT) and polymer matrix, such as nylon 11,3-aminopropyltriethoxysilane (APTES) was grafted onto TTNT. The effects of the TTNT chemical composition i.e. sodium content and solvent type on the grafting silane efficiency were thoroughly studied through CHN elemental analysis, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), surface area and zeta potential measurements. The present study brings evidences supporting aqueous ethanol as more efficient reaction medium for TTNT functionalization with APTES, independent of the sodium content of nanotubes, when compared with pure water. It is also worth noting that within aqueous ethanol medium, TTNT with low sodium content are more efficiently grafted than TTNT with high sodium content. Successful APTES grafting decreases concentration of the hydroxyl groups on TTNT surfaces and enables its future application for the fabrication of nylon 11 nanocomposites.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency",
pages = "315-322",
volume = "301",
doi = "10.1016/j.apsusc.2014.02.071",
url = "https://hdl.handle.net/21.15107/rcub_dais_565"
}
Pontón, P. I., D'Almeida, J. R., Marinković, B., Savić, S. M., Mančić, L., Rey, N., Morgado, E. Jr.,& Rizzo, F. C.. (2014). The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency. in Applied Surface Science
Elsevier., 301, 315-322.
https://doi.org/10.1016/j.apsusc.2014.02.071
https://hdl.handle.net/21.15107/rcub_dais_565
Pontón PI, D'Almeida JR, Marinković B, Savić SM, Mančić L, Rey N, Morgado EJ, Rizzo FC. The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency. in Applied Surface Science. 2014;301:315-322.
doi:10.1016/j.apsusc.2014.02.071
https://hdl.handle.net/21.15107/rcub_dais_565 .
Pontón, Patricia I., D'Almeida, Jose Roberto, Marinković, Bojan, Savić, Slavica M., Mančić, Lidija, Rey, Nicolás, Morgado, Edisson Jr., Rizzo, Fernando C., "The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency" in Applied Surface Science, 301 (2014):315-322,
https://doi.org/10.1016/j.apsusc.2014.02.071 .,
https://hdl.handle.net/21.15107/rcub_dais_565 .
40
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41

Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites

Rizzo, Fernando C.; Patton, Patricia; Fortini, Renata; Marinković, Bojan; D'Almeida, Jose Roberto; Mančić, Lidija; Savić, Slavica M.

(Las Vegas, 2013)

TY  - CONF
AU  - Rizzo, Fernando C.
AU  - Patton, Patricia
AU  - Fortini, Renata
AU  - Marinković, Bojan
AU  - D'Almeida, Jose Roberto
AU  - Mančić, Lidija
AU  - Savić, Slavica M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/818
AB  - The purpose of the present study was to investigate the effect of titanate nanotubes (TINTs) dispersion in the mechanical properties of Nylon 11 (polyamide 11) polymer. According ,to the existing literature small amounts of TTNTs used as reinforcement in polymer matrix improve properties such as tensile strength and stiffness. However, the addition of these nanoparticles may also lead to a decrease of strength of the composite if the nanotubes are not well dispersed in the polymer matrix. In this work two different routes were investigated to enhance the disl?ersion of TTNTs used as a reinforcement of nylon matrix nanocomposites: (1) chemical functionalization with 3-arninopropyltriethoxysilane; and (2) treatment with 2 kinds of surfactant - a cationic (CTAB) and an anionic (SDS). Characterization of the nanotubes was done by infrared spectroscopy, CHN elemental analysis, measurement of the specific surface area, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy. Nylon-II matrix nanocomposites were manufactured by microextrusion-microinjection and reinforced with 0.5 to 2.0 wt.-% of functionalized and surfactant treated nanotubes. Finally, mechanical and thermal properties as well as the microstructure of the nanocomposites were evaluated. The presentation will discuss the results and potential applications of these materials.
PB  - Las Vegas
C3  - THERMEC'2013: International Conference on Processing & Manufacturing of Advanced Materials (Processing, Fabrication, Properties, Application), Rio Hotel, Las Vegas, USA, December 2-6, 2013: Book of Abstracts
T1  - Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_dais_818
ER  - 
@conference{
author = "Rizzo, Fernando C. and Patton, Patricia and Fortini, Renata and Marinković, Bojan and D'Almeida, Jose Roberto and Mančić, Lidija and Savić, Slavica M.",
year = "2013",
abstract = "The purpose of the present study was to investigate the effect of titanate nanotubes (TINTs) dispersion in the mechanical properties of Nylon 11 (polyamide 11) polymer. According ,to the existing literature small amounts of TTNTs used as reinforcement in polymer matrix improve properties such as tensile strength and stiffness. However, the addition of these nanoparticles may also lead to a decrease of strength of the composite if the nanotubes are not well dispersed in the polymer matrix. In this work two different routes were investigated to enhance the disl?ersion of TTNTs used as a reinforcement of nylon matrix nanocomposites: (1) chemical functionalization with 3-arninopropyltriethoxysilane; and (2) treatment with 2 kinds of surfactant - a cationic (CTAB) and an anionic (SDS). Characterization of the nanotubes was done by infrared spectroscopy, CHN elemental analysis, measurement of the specific surface area, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy. Nylon-II matrix nanocomposites were manufactured by microextrusion-microinjection and reinforced with 0.5 to 2.0 wt.-% of functionalized and surfactant treated nanotubes. Finally, mechanical and thermal properties as well as the microstructure of the nanocomposites were evaluated. The presentation will discuss the results and potential applications of these materials.",
publisher = "Las Vegas",
journal = "THERMEC'2013: International Conference on Processing & Manufacturing of Advanced Materials (Processing, Fabrication, Properties, Application), Rio Hotel, Las Vegas, USA, December 2-6, 2013: Book of Abstracts",
title = "Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_dais_818"
}
Rizzo, F. C., Patton, P., Fortini, R., Marinković, B., D'Almeida, J. R., Mančić, L.,& Savić, S. M.. (2013). Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites. in THERMEC'2013: International Conference on Processing & Manufacturing of Advanced Materials (Processing, Fabrication, Properties, Application), Rio Hotel, Las Vegas, USA, December 2-6, 2013: Book of Abstracts
Las Vegas., 67-67.
https://hdl.handle.net/21.15107/rcub_dais_818
Rizzo FC, Patton P, Fortini R, Marinković B, D'Almeida JR, Mančić L, Savić SM. Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites. in THERMEC'2013: International Conference on Processing & Manufacturing of Advanced Materials (Processing, Fabrication, Properties, Application), Rio Hotel, Las Vegas, USA, December 2-6, 2013: Book of Abstracts. 2013;:67-67.
https://hdl.handle.net/21.15107/rcub_dais_818 .
Rizzo, Fernando C., Patton, Patricia, Fortini, Renata, Marinković, Bojan, D'Almeida, Jose Roberto, Mančić, Lidija, Savić, Slavica M., "Enhancement of titanate nanotubes dispersion for reinforcement of nylon-II nanocomposites" in THERMEC'2013: International Conference on Processing & Manufacturing of Advanced Materials (Processing, Fabrication, Properties, Application), Rio Hotel, Las Vegas, USA, December 2-6, 2013: Book of Abstracts (2013):67-67,
https://hdl.handle.net/21.15107/rcub_dais_818 .