Electrophysical properties of nonwoven viscose/polypropylene fabrics
2018
Преузимање 🢃
Аутори
Cerović, Dragana D.Asanović, Koviljka
Kostić, Mirjana
Mihailović, Tatjana V.
Ivanovska, Aleksandra
Maletić, Slavica
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Textile materials like woven, knitted and nonwoven fabrics are good insulators with very high
electrical resistance. It is known that dielectric properties (effective dielectric permeability, electrical
conductivity, and dielectric loss tangent) and electrical resistivity (volume resistivity and surface
resistivity) of fabric are depending on several factors such as fiber type, fabric structure, moisture
content of the material, air humidity, temperature, etc. The purpose of this investigation is to study the
influence of the different content of viscose and polypropylene as well as the type of web bonding on
the dielectric loss tangent and volume electrical resistivity. Also, the dielectric loss tangent was
analyzed over a range of frequencies from 30 Hz to 140 kHz. Three investigated nonwoven fabrics
were mechanically and thermally bonded, and one of the samples was additionally chemically
bonded. The investigations were realized at 40 % relative air humidity.
Conducted ana...lyses show that at frequencies below 100 Hz all investigated samples have
higher, while at higher frequencies, the investigated samples show lower values of loss tangent.
Namely, gradually decrease of the loss tangent value with the increase in the frequency from 30 Hz to
140 kHz was registered. The highest loss tangent value shows the sample with the highest viscose
fiber content and thus the highest number of polar hydroxyl groups. The smallest loss tangent value
was registered for a sample which was additionally chemically bonded.
Results obtained for the volume electrical resistivity was in accordance with the loss tangent
values. The lowest resistivity value was recorded for sample with the highest viscose fiber content
both in the machine direction as well as in the cross direction (5.27 GΩ∙cm and 5.03 GΩ∙cm,
respectively), while the highest resistivity value was registered for additionally chemically bonded
sample also in both investigated direction (11.84 GΩ∙cm and 12.51 GΩ∙cm, respectively). Some little
differences in volume electrical resistivity in the machine and in cross direction are probably due to
the fiber orientation in the samples and the number of contacts established between the fibers, because
better contact between fibers causes an easier flow of charge.
Кључне речи:
viscose/polypropylene / dielectric loss tangent / volume electrical resistivity / nonwoven fabricsИзвор:
Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia, 2018, 257-Издавач:
- Skopje : Society of chemists and technologists of Macedonia
Финансирање / пројекти:
- Проучавање утицаја третирања на диелектричне, оптичке, магнетне и особине површина кристалних и полимерних система (RS-MESTD-Basic Research (BR or ON)-171029)
- Функционализација, карактеризација и примена целулозе и деривата целулозе (RS-MESTD-Basic Research (BR or ON)-172029)
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - CONF AU - Cerović, Dragana D. AU - Asanović, Koviljka AU - Kostić, Mirjana AU - Mihailović, Tatjana V. AU - Ivanovska, Aleksandra AU - Maletić, Slavica PY - 2018 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6794 AB - Textile materials like woven, knitted and nonwoven fabrics are good insulators with very high electrical resistance. It is known that dielectric properties (effective dielectric permeability, electrical conductivity, and dielectric loss tangent) and electrical resistivity (volume resistivity and surface resistivity) of fabric are depending on several factors such as fiber type, fabric structure, moisture content of the material, air humidity, temperature, etc. The purpose of this investigation is to study the influence of the different content of viscose and polypropylene as well as the type of web bonding on the dielectric loss tangent and volume electrical resistivity. Also, the dielectric loss tangent was analyzed over a range of frequencies from 30 Hz to 140 kHz. Three investigated nonwoven fabrics were mechanically and thermally bonded, and one of the samples was additionally chemically bonded. The investigations were realized at 40 % relative air humidity. Conducted analyses show that at frequencies below 100 Hz all investigated samples have higher, while at higher frequencies, the investigated samples show lower values of loss tangent. Namely, gradually decrease of the loss tangent value with the increase in the frequency from 30 Hz to 140 kHz was registered. The highest loss tangent value shows the sample with the highest viscose fiber content and thus the highest number of polar hydroxyl groups. The smallest loss tangent value was registered for a sample which was additionally chemically bonded. Results obtained for the volume electrical resistivity was in accordance with the loss tangent values. The lowest resistivity value was recorded for sample with the highest viscose fiber content both in the machine direction as well as in the cross direction (5.27 GΩ∙cm and 5.03 GΩ∙cm, respectively), while the highest resistivity value was registered for additionally chemically bonded sample also in both investigated direction (11.84 GΩ∙cm and 12.51 GΩ∙cm, respectively). Some little differences in volume electrical resistivity in the machine and in cross direction are probably due to the fiber orientation in the samples and the number of contacts established between the fibers, because better contact between fibers causes an easier flow of charge. PB - Skopje : Society of chemists and technologists of Macedonia C3 - Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia T1 - Electrophysical properties of nonwoven viscose/polypropylene fabrics SP - 257 UR - https://hdl.handle.net/21.15107/rcub_technorep_6794 ER -
@conference{ author = "Cerović, Dragana D. and Asanović, Koviljka and Kostić, Mirjana and Mihailović, Tatjana V. and Ivanovska, Aleksandra and Maletić, Slavica", year = "2018", abstract = "Textile materials like woven, knitted and nonwoven fabrics are good insulators with very high electrical resistance. It is known that dielectric properties (effective dielectric permeability, electrical conductivity, and dielectric loss tangent) and electrical resistivity (volume resistivity and surface resistivity) of fabric are depending on several factors such as fiber type, fabric structure, moisture content of the material, air humidity, temperature, etc. The purpose of this investigation is to study the influence of the different content of viscose and polypropylene as well as the type of web bonding on the dielectric loss tangent and volume electrical resistivity. Also, the dielectric loss tangent was analyzed over a range of frequencies from 30 Hz to 140 kHz. Three investigated nonwoven fabrics were mechanically and thermally bonded, and one of the samples was additionally chemically bonded. The investigations were realized at 40 % relative air humidity. Conducted analyses show that at frequencies below 100 Hz all investigated samples have higher, while at higher frequencies, the investigated samples show lower values of loss tangent. Namely, gradually decrease of the loss tangent value with the increase in the frequency from 30 Hz to 140 kHz was registered. The highest loss tangent value shows the sample with the highest viscose fiber content and thus the highest number of polar hydroxyl groups. The smallest loss tangent value was registered for a sample which was additionally chemically bonded. Results obtained for the volume electrical resistivity was in accordance with the loss tangent values. The lowest resistivity value was recorded for sample with the highest viscose fiber content both in the machine direction as well as in the cross direction (5.27 GΩ∙cm and 5.03 GΩ∙cm, respectively), while the highest resistivity value was registered for additionally chemically bonded sample also in both investigated direction (11.84 GΩ∙cm and 12.51 GΩ∙cm, respectively). Some little differences in volume electrical resistivity in the machine and in cross direction are probably due to the fiber orientation in the samples and the number of contacts established between the fibers, because better contact between fibers causes an easier flow of charge.", publisher = "Skopje : Society of chemists and technologists of Macedonia", journal = "Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia", title = "Electrophysical properties of nonwoven viscose/polypropylene fabrics", pages = "257", url = "https://hdl.handle.net/21.15107/rcub_technorep_6794" }
Cerović, D. D., Asanović, K., Kostić, M., Mihailović, T. V., Ivanovska, A.,& Maletić, S.. (2018). Electrophysical properties of nonwoven viscose/polypropylene fabrics. in Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia Skopje : Society of chemists and technologists of Macedonia., 257. https://hdl.handle.net/21.15107/rcub_technorep_6794
Cerović DD, Asanović K, Kostić M, Mihailović TV, Ivanovska A, Maletić S. Electrophysical properties of nonwoven viscose/polypropylene fabrics. in Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia. 2018;:257. https://hdl.handle.net/21.15107/rcub_technorep_6794 .
Cerović, Dragana D., Asanović, Koviljka, Kostić, Mirjana, Mihailović, Tatjana V., Ivanovska, Aleksandra, Maletić, Slavica, "Electrophysical properties of nonwoven viscose/polypropylene fabrics" in Book of abstracts / 25th Congress of the society of chemists and technologists of Macedonia (with international participation) 19-22 September 2018 Ohrid, R. Macedonia (2018):257, https://hdl.handle.net/21.15107/rcub_technorep_6794 .