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The effects of sodium hydroxide content on mechanical and physical properties of rice straw paper

Hassan, A. and Md Salleh, Salihatun and Jafferi, Noormaziah (2015) The effects of sodium hydroxide content on mechanical and physical properties of rice straw paper. In: International Engineering Research and Innovation Symposium 2015 (IRIS), 12–13 September 2015, Putrajaya, Malaysia.

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Paper demand increases day by day according to current needs and requirements. This condition can affect to uncontrolled felling of trees and the occurrence of unbalanced ecosystem problems. Therefore, a study was made alternatively to use other resources to produce papers. Sodium hydroxide in different content for rice straw paper was studied to know its mechanical and physical properties. Preparation for paper sample process involves several important steps such as the provision of raw materials, preparation of pulp (absorption process, digesting process, rinsing process and mixing process) and sample preparation process (filtration process and drying process). The percentage of NaOH used for each sample are 5%, 10%, 15%, 20%, and 25% to varies the NaOH contents of the paper samples and see the effect of the chemical addition different in producing rice straw paper. Testing procedure including tensile, folding endurance, surface roughness, water absorption and FESEM test were implemented according to prescribed standards to see the different in its mechanical and physical properties of rice straw paper. The results showed that increasing the percentage of NaOH will decreases the surface roughness and water absorption rate. Also, the specimen surface when increasing NaOH indicates that the paper has improved fiber structure with fine arrangement to each other. With this, the addition of NaOH are seen to be able to improve fiber properties as well as strengthen ties between the fibers. The results also showed that the J25 using 25% of NaOH has highest tensile strength and folding value.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: rice straw paper; sodium hydroxide
Subjects: T Technology > TS Manufactures > TS1080-1268 Paper manufacture and trade
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Engineering Mechanics
Depositing User: Normajihan Abd. Rahman
Date Deposited: 12 Oct 2015 05:42
Last Modified: 12 Oct 2015 05:42
URI: http://eprints.uthm.edu.my/id/eprint/7311
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