The influence of long-term aging on the properties of TEMPO oxidized cotton
Uticaj dugotrajnog starenja na svojstvo TEMPO oksidisanog pamuka
Конференцијски прилог (Објављена верзија)
Метаподаци
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Cotton yarns were 2,2,6,6-tetramethy|piperidine-1-oxy radical (TEMPO) oxidized, i.e., oxidation was carried out in the presence of sodium hypochlorite, sodium bromide and TEMPO, during different time intervals (30, 60 and 120 min). Given that TEMPO oxidized cotton is prone to aging processes, the influence of long-term aging on the properties of TEMPO oxidized cotton yarns was monitored through changes in their content of carboxyl and aldehyde groups, crystallinity index and water retention value, determined immediately after TEMPO oxidations and 10 years later. The content of carboxyl and aldehyde groups was determined by the calcium acetate method, the crystallinity index by the Schwertassek method, and the water retention value by the standard centrifuge method (ASTM D 2402-78, 1978). Aged TEMPO oxidized cotton yarns showed increased content of carboxyl groups, decreased content of aldehyde groups, unchanged crystallinity index and increased water retention value.
Pamučne pređe su oksidisane 2,2,6,6-tetrametilpiperidin-I-oksilradikal (TEMPO), tj. oksidisane su sa natrijum-hipohloritom, natrijum-bromidomi TEMPO, tokom različitih vremenskih intervala (30, 60 i 120 min). S obzirom na to da je TEMPO oksidisani pamuk podložan procesima starenja, uticaj dugotrajnog starenja na svojstava TEMPO oksidisanih pamučnih pređa praćen je kroz promene u njihovom sadržaju karboksilnih i aldehidnih grupa, indeksu kristalnosti i sposobnosti zadržavanja vode, određenim neposredno nakon TEMPO oksidacije i 10 godina kasnije. Sadržaj karboksilnih i aldehidnih grupa određen je kalcijum-acetatom metodom, indeks kristalnosti Schwertassek-ovom metodom, a sposobnost zadržavanja vode standardnom metodom centrifugiranja (ASTM D 2402-78, 1978). Ostarele TEMPO oksidisane pamučne pređe pokazale su povećan sadržaj karboksilnih grupa, smanjen sadržaj aldehidnih grupa, nepromenjen indeks kristalnosti i povećanu sposobnost zadržavanja vode.
Кључне речи:
TEMPO oxidation / cotton / long-term ageing / properties / TEMPO oksidacija / pamuk / dugotrajno starenje / svojstavaИзвор:
Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September, 2023, 82-91Издавач:
- Belgrade : Union of Engineers and Textile Technicians of Serbia
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200287 (Иновациони центар Технолошко-металуршког факултета у Београду доо) (RS-MESTD-inst-2020-200287)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Колекције
Институција/група
Inovacioni centarTY - CONF AU - Korica, Matea AU - Kostić, Mirjana PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6621 AB - Cotton yarns were 2,2,6,6-tetramethy|piperidine-1-oxy radical (TEMPO) oxidized, i.e., oxidation was carried out in the presence of sodium hypochlorite, sodium bromide and TEMPO, during different time intervals (30, 60 and 120 min). Given that TEMPO oxidized cotton is prone to aging processes, the influence of long-term aging on the properties of TEMPO oxidized cotton yarns was monitored through changes in their content of carboxyl and aldehyde groups, crystallinity index and water retention value, determined immediately after TEMPO oxidations and 10 years later. The content of carboxyl and aldehyde groups was determined by the calcium acetate method, the crystallinity index by the Schwertassek method, and the water retention value by the standard centrifuge method (ASTM D 2402-78, 1978). Aged TEMPO oxidized cotton yarns showed increased content of carboxyl groups, decreased content of aldehyde groups, unchanged crystallinity index and increased water retention value. AB - Pamučne pređe su oksidisane 2,2,6,6-tetrametilpiperidin-I-oksilradikal (TEMPO), tj. oksidisane su sa natrijum-hipohloritom, natrijum-bromidomi TEMPO, tokom različitih vremenskih intervala (30, 60 i 120 min). S obzirom na to da je TEMPO oksidisani pamuk podložan procesima starenja, uticaj dugotrajnog starenja na svojstava TEMPO oksidisanih pamučnih pređa praćen je kroz promene u njihovom sadržaju karboksilnih i aldehidnih grupa, indeksu kristalnosti i sposobnosti zadržavanja vode, određenim neposredno nakon TEMPO oksidacije i 10 godina kasnije. Sadržaj karboksilnih i aldehidnih grupa određen je kalcijum-acetatom metodom, indeks kristalnosti Schwertassek-ovom metodom, a sposobnost zadržavanja vode standardnom metodom centrifugiranja (ASTM D 2402-78, 1978). Ostarele TEMPO oksidisane pamučne pređe pokazale su povećan sadržaj karboksilnih grupa, smanjen sadržaj aldehidnih grupa, nepromenjen indeks kristalnosti i povećanu sposobnost zadržavanja vode. PB - Belgrade : Union of Engineers and Textile Technicians of Serbia C3 - Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September T1 - The influence of long-term aging on the properties of TEMPO oxidized cotton T1 - Uticaj dugotrajnog starenja na svojstvo TEMPO oksidisanog pamuka EP - 91 SP - 82 UR - https://hdl.handle.net/21.15107/rcub_technorep_6621 ER -
@conference{ author = "Korica, Matea and Kostić, Mirjana", year = "2023", abstract = "Cotton yarns were 2,2,6,6-tetramethy|piperidine-1-oxy radical (TEMPO) oxidized, i.e., oxidation was carried out in the presence of sodium hypochlorite, sodium bromide and TEMPO, during different time intervals (30, 60 and 120 min). Given that TEMPO oxidized cotton is prone to aging processes, the influence of long-term aging on the properties of TEMPO oxidized cotton yarns was monitored through changes in their content of carboxyl and aldehyde groups, crystallinity index and water retention value, determined immediately after TEMPO oxidations and 10 years later. The content of carboxyl and aldehyde groups was determined by the calcium acetate method, the crystallinity index by the Schwertassek method, and the water retention value by the standard centrifuge method (ASTM D 2402-78, 1978). Aged TEMPO oxidized cotton yarns showed increased content of carboxyl groups, decreased content of aldehyde groups, unchanged crystallinity index and increased water retention value., Pamučne pređe su oksidisane 2,2,6,6-tetrametilpiperidin-I-oksilradikal (TEMPO), tj. oksidisane su sa natrijum-hipohloritom, natrijum-bromidomi TEMPO, tokom različitih vremenskih intervala (30, 60 i 120 min). S obzirom na to da je TEMPO oksidisani pamuk podložan procesima starenja, uticaj dugotrajnog starenja na svojstava TEMPO oksidisanih pamučnih pređa praćen je kroz promene u njihovom sadržaju karboksilnih i aldehidnih grupa, indeksu kristalnosti i sposobnosti zadržavanja vode, određenim neposredno nakon TEMPO oksidacije i 10 godina kasnije. Sadržaj karboksilnih i aldehidnih grupa određen je kalcijum-acetatom metodom, indeks kristalnosti Schwertassek-ovom metodom, a sposobnost zadržavanja vode standardnom metodom centrifugiranja (ASTM D 2402-78, 1978). Ostarele TEMPO oksidisane pamučne pređe pokazale su povećan sadržaj karboksilnih grupa, smanjen sadržaj aldehidnih grupa, nepromenjen indeks kristalnosti i povećanu sposobnost zadržavanja vode.", publisher = "Belgrade : Union of Engineers and Textile Technicians of Serbia", journal = "Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September", title = "The influence of long-term aging on the properties of TEMPO oxidized cotton, Uticaj dugotrajnog starenja na svojstvo TEMPO oksidisanog pamuka", pages = "91-82", url = "https://hdl.handle.net/21.15107/rcub_technorep_6621" }
Korica, M.,& Kostić, M.. (2023). The influence of long-term aging on the properties of TEMPO oxidized cotton. in Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September Belgrade : Union of Engineers and Textile Technicians of Serbia., 82-91. https://hdl.handle.net/21.15107/rcub_technorep_6621
Korica M, Kostić M. The influence of long-term aging on the properties of TEMPO oxidized cotton. in Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September. 2023;:82-91. https://hdl.handle.net/21.15107/rcub_technorep_6621 .
Korica, Matea, Kostić, Mirjana, "The influence of long-term aging on the properties of TEMPO oxidized cotton" in Proceedings / VI international scientific conference "Contemporary trends and innovations in the textile industry", CT&ITI, Belgrade, 14-15th September (2023):82-91, https://hdl.handle.net/21.15107/rcub_technorep_6621 .