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Light scattering in cellulose nanofibre suspensions: Model and experiments
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-2388-3358
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-6247-5963
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-4254-5020
Vise andre og tillknytning
2016 (engelsk)Inngår i: Computers in Chemistry Proceeding from ACS National Meeting San Diego: Proceeding from ACS National Meeting San Diego, American Chemical Society (ACS), 2016, s. 122-, artikkel-id CELL 235Konferansepaper, Meeting abstract (Annet vitenskapelig)
Abstract [en]

Here light scattering theory is used to assess the size distribution in a suspension of cellulose as it is fibrillated from micro-scaled to nano-scaled fibres. A model based on Monte carlo simulations of the scattering of photons by different sizes of cellulose fibres was used to predict the UV-IF spectrum of the suspensions. Bleached cellulose hardwood pulp was tested and compared to the visually transparent tempo-oxidised hardwood cellulose nanofibres (CNF) suspension. The theoretical results show that different diameter size classes exhibit very different scattering patterns. These classes could be identified in the experimental results and used to establish the size class dominating the suspension. A comparison to AFM/microscope size distribution was made and the results indicated that using the UV-IF light scattering spectrum maybe more reliable that size distribution measurement using AFM and microscopy on dried CNF samples. The UV-IF spectrum measurement combined with the theoretical prediction can be used even at this initial stage of development of this model to assess the degree of fibrillation when processing CNF.

sted, utgiver, år, opplag, sider
American Chemical Society (ACS), 2016. s. 122-, artikkel-id CELL 235
HSV kategori
Forskningsprogram
Trä och bionanokompositer; Industriell elektronik
Identifikatorer
URN: urn:nbn:se:ltu:diva-27433Lokal ID: 0e1f8cb1-032d-4e71-956c-b2aca7925036OAI: oai:DiVA.org:ltu-27433DiVA, id: diva2:1000617
Konferanse
American Chemical Society (ACS) National Meeting & Exposition : 13/03/2016 - 17/03/2016
Merknad
Godkänd; 2016; 20160418 (aitomaki)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2017-11-25bibliografisk kontrollert

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http://sandiego2016.acs.org/i/651144-computers-in-chemistry/50

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Aitomäki, YvonneBerglund, LinnNoël, MaximeLinder, TomasLöfqvist, TorbjörnOksman, Kristiina

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