Author:
Larsson Per Tomas,Stevanic-Srndovic Jasna,Roth Stephan V.,Söderberg Daniel
Abstract
AbstractA simulation method was developed for modelling SAXS data recorded on cellulose rich pulps. The modelling method is independent of the establishment of separate form factors and structure factors and was used to model SAXS data recorded on dense samples. An advantage of the modelling method is that it made it possible to connect experimental SAXS data to apparent average sizes of particles and cavities at different sample solid contents. Experimental SAXS data could be modelled as a superposition of a limited number of simulated intensity components and gave results in qualitative agreement with CP/MAS 13C-NMR data recorded on the same samples. For the water swollen samples, results obtained by the SAXS modelling method and results obtained from CP/MAS 13C-NMR measurements, agreed on the ranking of particle sizes in the different samples. The SAXS modelling method is dependent on simulations of autocorrelation functions and the time needed for simulations could be reduced by rescaling of simulated correlation functions due to their independence of the choice of step size in real space. In this way an autocorrelation function simulated for a specific sample could be used to generate SAXS intensity profiles corresponding to all length scales for that sample and used for efficient modelling of the experimental data recorded on that sample.
Graphical abstract
Funder
Stiftelsen Nils och Dorthi Troëdssons Forskningsfond
RISE Research Institutes of Sweden
Publisher
Springer Science and Business Media LLC
Reference37 articles.
1. Brett CJ, Montani S, Schwartzkopf M, van Benthem RATM, Jansen JFGA, Griffini G, Roth SV, Johansson MK (2020) Revealing structural evolution occurring from photo-initiated polymer network formation. Commun Chem 3(1):1–7. https://doi.org/10.1038/s42004-020-0335-9
2. Debye P, Anderson HR, Brumberger H (1957) Scattering by an inhomogeneous solid II. The correlation function and its application. J Appl Phys 28:679–683. https://doi.org/10.1063/1.1722830
3. Elazzouzi-Hafraoui S, Nishiyama Y, Putaux J, Heux L, Dubreuil F, Rochas C (2008) The shape and size distribution of crystalline nanoparticles prepared by acid hydrolysis of native cellulose. Biomacromol 9:57–65. https://doi.org/10.1021/bm700769
4. Fall AB, Lindström SB, Sundman O, Ödberg L, Wågberg L (2011) Colloidal stability of aqueous nanofibrillated cellulose dispersions. Langmuir 27(18):11332–11338. https://doi.org/10.1021/la201947x
5. FAO, Food and Agriculture Organization of The United Nations (2016), pulp and paper capacities, survey 2015–2020, Rome, Italy. Spread sheets with data is available at URL:http://www.fao.org/forestry/statistics/80571/en/.
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献