Iranian Journal of Wood and Paper Industries

Iranian Journal of Wood and Paper Industries

Investigating the effect of chemical treatment of lignocellulosic material on physical and mechanical properties Hybrid composite of rice husk flour/polypropylene/nanoclay

Document Type : Research Paper

Author
Valiullah Mousavi
Assistance at Department of wood science and paper technology, Calous branch, Islamic Azad University, Calous, Iran.
10.22034/ijwp.2024.2016997.1638
Abstract
In this study, the effect of chemical treatment of rice husk flour with to including glacial acetic acid and benzyl chloride on the physical and mechanical properties of polypropylene/rice husk flour/nanoclay were studied. Rice husk was milled and the particles passed through the 60 meshes sieve owas selected for treatment. First, the dried flour in sodium hydroxide solution was immersed and then with acetic acid and benzyl chloride was treatment. After mixing nanoclay at 4 levels (0, 1, 3 and 5Phc), molten polypropylene (60%) and PP-g-MA coupling agent (MAPP) at the amount of 4 Phc, treated and untreated rice husk flour (40%) was added and composites were made. Then, the physical and mechanical properties of the produced composite were investigated and compared. FTIR spectra of chemical treatments of rice flour husks were also investigated to define the extent changes in the functional groups being studied. Results of FTIR indicated that the absorption region of 3420-3425 ‌cm-1, which is the place of absorption of hydroxyl groups, has changed. In the absorption region of 1400-1620 cm-1 (related to the carbonyl group), by the release of hemicellulose from the treated rice husk flour, the changes in the peak of rice husk flour are caused. The mechanical properties of the treated samples compared to the control samples increased and its physical properties improved. The changes in the tensile and bending resistances and the amount of water absorption and thickness by increasing the amount of nanoclay, were improved.
Keywords
Chemical treatment
physical and mechanical properties
rice husk
Glacial acetic acid
benzyl chloride
nanoclay

Subjects

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Iranian Journal of Wood and Paper Industries
Volume 15, Issue 1
Spring 2024
Pages 41-54