Abstract
Polyamides
are widely used thermoplastic polymers having good mechanical, electrical and
chemical properties. Synthesis of polyamides is based on the condensation
polymerization using diamines and diacids as monomers. The use of different
types of monomers enables to get polyamides with special properties. Polyamide
66 (Nylon 66) is a semi-crystalline thermoplastic polymer having higher melting
point than other polyamides. Moreover, it maintains its stiffness with
increasing temperature. It has low friction coefficient, high stiffness, wide
color options, high toughness, creep resistance, flame retardant, electrical
insulation, abrasion resistance, external condition resistance and easy
operation properties. Recently, their mechanical properties have been improved with
glass fibers with different size and feeding ratio. Polyphthalamides are
semi-aromatic and semi-crystalline thermoplastic polymers having high heat
resistance. They can be used in chemical or high temperature conditions because
of their good thermal resistance and low moisture absorption. They are usually
mixed with aliphatic polyamides to prepare their blends providing higher
mechanical properties and lower densities. When the aromatic polyamides and
aliphatic polyamides are mixed, the processability of aromatic polyamides are
improved. In this study, the compability of polyphthalamide and polyamide 66
blends reinforced with 50% glass fiber is investigated by different feeding
ratio. During constant glass fibre ratio, polyphthalamide
and polyamide blends are prepared by different feeding ratio
using
extrusion. Finally, test samples
are prepared by injection molding method. The effects of feeding ratio of
polymers on the mechanical and thermal properties are studied by thermal
and mechanical tests.
References
- Brady, P. (2008) Developments in automotive plastics, Reinforced Plastics, 52(10), 37-40. doi: 10.1016/S0034-3617(08)70374-6
- Cousin, T. Galy, J. and Dupuy, J. (2012) Molecular modelling of polyphthalamides thermal properties: Comparison between modelling and experimental results, Polymer, 53(15), 3203-3210. doi: 10.1016/j.polymer.2012.05.051
- Desio, G. P. (1996) Characterization and properties of polyphthalamide/polyamide blends and polyphthalamide/polyamide/polyolefin blends, Journal of Vinyl & Additive Technology, 2(3), 229-234. doi: 10.1002/vnl.10131
- Gallini, J. (2005) "Polyamides, Aromatic" in Encyclopedia of Polymer Science and Technology, John Wiley & Sons, New York.
- Iribarren, J. I. Alemán, C. Puiggali J. (2011) “Polyphthalamides” in Handbook of Engineering and Specialty Thermoplastics, Volume 4, Wiley-Scrivener, New Jersey
- Kaya, F. (2005) Plastikler ve katkı maddeleri, Birsen Yayınevi, İstanbul.
- Lyons, J. S. (1998) Time and Temperature Effects on the Mechanical Properties of Glass-Filled Amide-Based Thermoplastics, Polymer Testing, 17(4), 237-245. doi: 10.1016/S0142-9418(97)00045-7
- Malluche, J. Hellmann, G. P. Hewel, M and Liedloff, H-J. (2007) The Condensation Kinetics of Polyphthalamides. I. Diamines and Diacids or Dimethylesters, Polymer Engineering & Science, 47(10), 1589-1599. doi: 10.1002/pen.20689
- Marchildo, K. (2010) Polyamides – Still Strong After Seventy Years, Macromolecular Reaction Engineering, 5(1), 22-54. doi: 10.1002/mren.201000017
- Novitsky, T. F., Lange, C. A., Mathias, L. J., Osborn, S., Ayotte, R. And Manning, S. (2010) Eutectic melting behavior of polyamide 10,T-co-6,T and 12,T-co-6,T copolyterephthalamides, Polymer, 51(11), 2417-2425. doi:10.1016/j.polymer.2010.03.045
- Shashoua, E. and Eareckson, W. M. (1959) Interfacial polycondensation. V. Polyterephthalamides from short-chain aliphatic, primary, and secondary diamines, Journal of Polymer Science Part A: Polymer Chemistry, 40 (137), 343-358. doi: 10.1002/pol.1959.1204013705
- Takenaka, Y. Nishitani, Y. and Kitano, T. (2015) Tribological Properties of PTFE Filled Plants-Derived SemiAromatic Polyamide (PA10T) and GF Reinforced PTFE/PA10T Composites, AIP Conference Proceedings, 1664, 060009. doi: 10.1063/1.4918427
- Taşdemir, M. (2013) Polimer Karışımlar ve uygulamaları, Seçkin Yayıncılık, Ankara.
- Utracki, L. A. (1995) History of commercial polymer alloys and blends (from a perspective of the patent literature), Polymer Engineering & Science, 35(1), 2-17. doi: 10.1002/pen.760350103
Abstract
Poliamidler yüksek dayanım, iyi elektriksel ve
kimyasal özelliklere sahip, hafif ve birçok türleri olan termoplastik sınıfında
polimerlerdir. Sentezi bir diasit ve bir diaminin polimerleştirilmesine dayanan
poliamidler, çeşitli kimyasallar sayesinde birçok farklı özelliklere sahip
polimerlerin eldesine izin vermektedir. Poliamidler yüksek erime sıcaklığına ve
sıcaklık artışıyla sertliğini koruma özelliğine sahip malzemelerdir. Birçok
üstün özellikleri arasında yüksek sertlik, tokluk, yorgunluğa karşı mukavemet,
sünme mukavemeti, alev geciktiricilik, elektriksel yalıtım, kimyasal mukavemet,
aşınma mukavemeti, düşük sürtünme katsayısı, dış koşullara dayanıklılık, geniş
renk yelpazesi ve işleme kolaylığı bulunmaktadır. Son yıllarda, mekanik
özelliklerini iyileştirmek için farklı boy ve besleme oranlarında cam elyaf
takviyesi ile kompozitleri hazırlanmıştır. Poliftalamidler, yüksek ısıl dirence
sahip yarı aromatik ve yarı kristalin bir malzemelerdir. Bu polimerler, sahip
olduğu ısıl direnç ve düşük nem çekme özellikleriyle kimyasal bir çevrede veya
yüksek sıcaklık koşullarında kullanıma uygundur. Polimer karışımları, yüksek
dayanımları ve düşük yoğunlukları nedeniyle plastik endüstrisinde yaygın olarak
kullanılan malzemelerdir. Aromatik poliamidler ile alifatik poliamidler
karıştırıldığında işlenebilirlik artmaktadır. Bu çalışmada %50 cam elyaf
takviyeli katkılı poliftalamid malzemesi ile poliamid 66 malzemesi
karıştırılarak, uyumlulukları incelenecektir. Poliftalamidler ile farklı
oralarda poliamid 66 karışımları ekstruzyonla harmanlanacaktır. Test örnekleri
enjeksiyonla kalıplama yöntemleriyle hazırlanacak, polimerlerin besleme
oranlarının, kompozitlerin mekanik, ısıl ve morfolojik özellikleri üzerine
etkisi DSC ve mekanik test yöntemleriyle incelenecektir.
References
- Brady, P. (2008) Developments in automotive plastics, Reinforced Plastics, 52(10), 37-40. doi: 10.1016/S0034-3617(08)70374-6
- Cousin, T. Galy, J. and Dupuy, J. (2012) Molecular modelling of polyphthalamides thermal properties: Comparison between modelling and experimental results, Polymer, 53(15), 3203-3210. doi: 10.1016/j.polymer.2012.05.051
- Desio, G. P. (1996) Characterization and properties of polyphthalamide/polyamide blends and polyphthalamide/polyamide/polyolefin blends, Journal of Vinyl & Additive Technology, 2(3), 229-234. doi: 10.1002/vnl.10131
- Gallini, J. (2005) "Polyamides, Aromatic" in Encyclopedia of Polymer Science and Technology, John Wiley & Sons, New York.
- Iribarren, J. I. Alemán, C. Puiggali J. (2011) “Polyphthalamides” in Handbook of Engineering and Specialty Thermoplastics, Volume 4, Wiley-Scrivener, New Jersey
- Kaya, F. (2005) Plastikler ve katkı maddeleri, Birsen Yayınevi, İstanbul.
- Lyons, J. S. (1998) Time and Temperature Effects on the Mechanical Properties of Glass-Filled Amide-Based Thermoplastics, Polymer Testing, 17(4), 237-245. doi: 10.1016/S0142-9418(97)00045-7
- Malluche, J. Hellmann, G. P. Hewel, M and Liedloff, H-J. (2007) The Condensation Kinetics of Polyphthalamides. I. Diamines and Diacids or Dimethylesters, Polymer Engineering & Science, 47(10), 1589-1599. doi: 10.1002/pen.20689
- Marchildo, K. (2010) Polyamides – Still Strong After Seventy Years, Macromolecular Reaction Engineering, 5(1), 22-54. doi: 10.1002/mren.201000017
- Novitsky, T. F., Lange, C. A., Mathias, L. J., Osborn, S., Ayotte, R. And Manning, S. (2010) Eutectic melting behavior of polyamide 10,T-co-6,T and 12,T-co-6,T copolyterephthalamides, Polymer, 51(11), 2417-2425. doi:10.1016/j.polymer.2010.03.045
- Shashoua, E. and Eareckson, W. M. (1959) Interfacial polycondensation. V. Polyterephthalamides from short-chain aliphatic, primary, and secondary diamines, Journal of Polymer Science Part A: Polymer Chemistry, 40 (137), 343-358. doi: 10.1002/pol.1959.1204013705
- Takenaka, Y. Nishitani, Y. and Kitano, T. (2015) Tribological Properties of PTFE Filled Plants-Derived SemiAromatic Polyamide (PA10T) and GF Reinforced PTFE/PA10T Composites, AIP Conference Proceedings, 1664, 060009. doi: 10.1063/1.4918427
- Taşdemir, M. (2013) Polimer Karışımlar ve uygulamaları, Seçkin Yayıncılık, Ankara.
- Utracki, L. A. (1995) History of commercial polymer alloys and blends (from a perspective of the patent literature), Polymer Engineering & Science, 35(1), 2-17. doi: 10.1002/pen.760350103
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | April 24, 2018 |
| Submission Date | November 10, 2017 |
| Acceptance Date | March 20, 2018 |
| Published in Issue | Year 2018 Volume: 23 Issue: 1 |
Cite
Cited By
EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE FRICTIONAL FORCES IN EQUAL CHANNEL ANGULAR PRESSING
Uludağ University Journal of The Faculty of Engineering
Mehdi ESKANDARZADE
https://doi.org/10.17482/uumfd.818759
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