Effects of using Cellulose Nanocrystal as wood cement Composite admixture on strength of physical and Mechanical poroperties of wood cement board

Shayestehkia, Mona; Khademi Eslam, Habibollah; Baziyar, Behzad; Rangavar, Hossein; Taghiyari, Hamid Reza

doi:10.22092/ijwpr.2020.351285.1628

Document Type : Research Paper

Authors

¹ PhD. student Department of Wood and Paper Science and Technology, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

² , Prof., Department of Wood and Paper Science and Technology, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

³ Department of Wood and Paper Science and Technology, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.

⁴ Assistant Prof., Department of Wood Industries, Faculty of, Shahid Rajaee Teacher Training University, Tehran, Iran

https://doi.org/10.22092/ijwpr.2020.351285.1628

Abstract

Abstract
In this research, the effect of cellulose nanocrystals on the functional properties of wood cement composite panels has been investigated. Variable factors in this research are the percentage of nano in (five levels of 0, 0.1, 0.2, 0.5 and 1%), the weight of cement and also the ratio of mixing wood chips with cement in three levels (1 to 3, 1 To 3.5 and 1 to 4) dry weight of cement. In this research, poplar wood and Portland cement type 2 have been used as fixed agents. In total, 15 treatments and 3 replicates of each treatment were made. Preparation of sample in accordance with the standard (DIN / EN 634) and measurement of physical and mechanical properties including flexural modulus, modulus of elasticity in accordance with the standard (DIN / EN 310), internal adhesion in accordance with the standard (DIN / EN 319), thickness swelling after 2 and 24 hours of immersion in water was performed according to the standard (DIN / EN 317). Increased cellulose nanocrystals improved physical and mechanical strength. SEM microscopic images were taken from the samples to examine the microstructural properties of the composite. In the pictures, it was found that by adding cellulose nanocrystals, we see an improvement in the disintegration of nanocomposite materials and as a result, an increase in mechanical and physical properties

Keywords

20.1001.1.17350913.1399.35.3.5.0

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Iranian Journal of Wood and Paper Science Research

Effects of using Cellulose Nanocrystal as wood cement Composite admixture on strength of physical and Mechanical poroperties of wood cement board

References

References

Volume 35, Issue 3 - Serial Number 72
October 2020
Pages 271-282

Effects of using Cellulose Nanocrystal as wood cement Composite admixture on strength of physical and Mechanical poroperties of wood cement board

References

References

Volume 35, Issue 3 - Serial Number 72October 2020Pages 271-282

Volume 35, Issue 3 - Serial Number 72
October 2020
Pages 271-282