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dc.contributor.authorCandan, Zeki
dc.contributor.authorPOYRAZ, BAYRAM
dc.contributor.authorTOZLUOĞLU, AYHAN
dc.date.accessioned2021-03-06T11:56:52Z
dc.date.available2021-03-06T11:56:52Z
dc.date.issued2018
dc.identifier.citationTOZLUOĞLU A., POYRAZ B., Candan Z., "EXAMINING THE EFFICIENCY OF MECHANIC/ENZYMATIC PRETREATMENTS IN MICRO/NANOFIBRILLATED CELLULOSE PRODUCTION", MADERAS-CIENCIA Y TECNOLOGIA, cilt.20, ss.67-84, 2018
dc.identifier.issn0718-221X
dc.identifier.otherav_f17f40b5-4032-4242-931d-cdb6ffaabf2b
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/158457
dc.identifier.urihttps://doi.org/10.4067/s0718-221x2018005001601
dc.description.abstractThere is still a need to improve the production sequences of micro fibrillated and nano fibrillated celluloses to obtain more economic and better quality products. The aim of this study was to improve the production efficiency and quality of micro fibrillated and nano fibrillated celluloses by examining the enzyme (xylanase endo-1,4-) employed in pretreatment sequences. Fairly homogeneous nano fibrillated cellulose with a width of 35 +/- 12 nm was produced in this study. Sequences employed to produce micro fibrillated and nano fibrillated celluloses decreased the cellulose crystallinity of bleached kraft pulp and lower total crystalline index and lateral order index values were observed for micro fibrillated and nano fibrillated celluloses in FTIR examinations. Lower crystallinities were also defined by C-13-NMR (46,2 ppm) which was substantiated with C6 peaks in the amorphous domain. Sequences to produce micro fibrillated and nano fibrillated celluloses resulted in shorter fiber dimensions with less ordered cellulose structure leading lower thermal degradation that reveal main polymer chain source from cellulose units. Dynamic mechanical thermal analysis results showed that the initial and maximum storage modulus of the nano fibrillated and micro fibrillated celluloses films were improved by 114% and 101%, respectively. The storage modulus of micro fibrillated and nano fibrillated celluloses films were 4,96 GPa and 2,66 GPa at temperature of 235 degrees C, respectively.
dc.language.isoeng
dc.subjectMALZEME BİLİMİ, KAĞIT & AHŞAP
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMalzeme Bilimi
dc.subjectMühendislik ve Teknoloji
dc.titleEXAMINING THE EFFICIENCY OF MECHANIC/ENZYMATIC PRETREATMENTS IN MICRO/NANOFIBRILLATED CELLULOSE PRODUCTION
dc.typeMakale
dc.relation.journalMADERAS-CIENCIA Y TECNOLOGIA
dc.contributor.departmentDüzce Üniversitesi , ,
dc.identifier.volume20
dc.identifier.issue1
dc.identifier.startpage67
dc.identifier.endpage84
dc.contributor.firstauthorID249273


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