Characterization and mechanical properties investigation of the cellulose/gypsum composite



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Nindiyasari, Fitriana and Griesshaber, Erika and Zimmermann, Tanja and Manian, Avinash Pradip and Randow, Clemens and Randow, Clemens and Fernández Díaz, Lurdes and Ziegler, Andreas and Fleck, Claudia and Schmahl, Wolfgang W. (2016) Characterization and mechanical properties investigation of the cellulose/gypsum composite. Journal of Composite Materials, 50 (5). pp. 657-672. ISSN 0021-9983

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We synthesized cellulose/gypsum composites in the presence and absence of sodium alginate and investigated the interaction between the composite components as well as the mechanical properties of the final composites. Four different types of cellulose fiber materials were used: cellulose UFC100, cellulose B400, nanofibrillated cellulose, and Lyocell fiber. For all investigated composites the total amount of admixed cellulose was between 1 and 2 wt%, the amount of admixed sodium alginate was 0.5 wt%. We determined the morphology of the composites and observed that the particle and fiber dimensions of the admixed cellulose affect the mode of gypsum–gypsum interlocking and the total porosity of the composites. This in turn had a substantial influence on the mechanical properties of the final composite materials. The addition of sodium alginate resulted in an increase of ultimate strain values. Composites with Lyocell fiber, a synthetic fiber, also had a high Young’s modulus.

Item Type:Article
Uncontrolled Keywords:Gypsum; Hemihydrate; Sodium alginate; Cellulose fiber; Mechanical properties; Porosity
Subjects:Sciences > Geology > Mineralogy
ID Code:57791
Deposited On:18 Nov 2019 17:11
Last Modified:09 Jun 2020 11:11

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