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Authors: Sri Rahayu 1 ; Saharman Gea 2 and  Andriayani 2

Affiliations: 1 Postgraduate Chemistry Study Program, Universitas Sumatera Utara, Jalan Bioteknologi Padang Bulan, Medan, Indonesia ; 2 Department of Chemistry, Universitas Sumatera Utara, Jalan Bioteknologi Padang Bulan, Medan, Indonesia

Keyword(s): Old News Paper, Deinking, Ultrasound, Alkaline Treatment

Abstract: Old newspaper is one of commonly printed paper media which is published daily in large quantities, so it is important to be recycled. This study aims to analyse thermal and mechanical properties of deinked paper. This research used the ultrasound-alkaline method to recycle old newspapers in order to be compared to paper which was deinked ultrasonication method with a variation time of 30 minutes, 60 minutes and 90 minutes.by using conventional methods. The thermal properties of deinked newspaper were analysed by using TGA/DTG, and the analysis showed that treated samples with NaOH had 12-13% of mass loss, while the treatment by using Mg(OH)2 had mass loss around 20-80%. Samples were also analysed for its mechanical properties by tensile tests. The results show, deinked old newspaper which is treated in 60 minutes ultrasound had best thermal properties with a tensile strength of around 1834 MPa and a strain of 0.1%.

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Paper citation in several formats:
Rahayu, S.; Gea, S. and Andriayani. (2022). Thermal and Mechanical Properties Analysis of Old Newspaper Deinked using Ultrasound under Alkaline Conditions. In Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - IMC-SciMath; ISBN 978-989-758-556-2, SciTePress, pages 252-257. DOI: 10.5220/0010142600002775

@conference{imc-scimath22,
author={Sri Rahayu. and Saharman Gea. and Andriayani.},
title={Thermal and Mechanical Properties Analysis of Old Newspaper Deinked using Ultrasound under Alkaline Conditions},
booktitle={Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - IMC-SciMath},
year={2022},
pages={252-257},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010142600002775},
isbn={978-989-758-556-2},
}

TY - CONF

JO - Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - IMC-SciMath
TI - Thermal and Mechanical Properties Analysis of Old Newspaper Deinked using Ultrasound under Alkaline Conditions
SN - 978-989-758-556-2
AU - Rahayu, S.
AU - Gea, S.
AU - Andriayani.
PY - 2022
SP - 252
EP - 257
DO - 10.5220/0010142600002775
PB - SciTePress

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