Physical and electrical breakdown characteristics of oil-impregnated kenaf paper with the introduction of external PVA for transformer application

Muhammad Umair and Norhafiz Azis and Rasmina Halis and Jasronita Jasni (2023) Physical and electrical breakdown characteristics of oil-impregnated kenaf paper with the introduction of external PVA for transformer application. Pertanika Journal of Science & Technology (Malaysia), 31 (2). pp. 1069-1085. ISSN 2231-8526

This work examines the physical and electrical breakdown characteristics of kenaf paper coated with Polyvinyl Alcohol (PVA) for application in power transformers. The paper was made from kenaf bast fibers using the soda pulping method, whereby the pulps were subjected to 12,000 beating revolutions. PVA with weight percentage concentration up to 6% was introduced to the beaten kenaf through a spin coating approach. The structure of the kenaf paper was examined through Scanning Electron Microscopy (SEM). The physical properties examined were apparent density, Tensile Index (TI), Burst Index (BI), and Tear Index (TeI), while AC breakdown voltage and strength were analyzed for the electrical property. It is found that the beating and external PVA improve the kenaf paper’s apparent density, TI, BI, and AC breakdown strength while the TeI decreases.

Full text available from: Official URL: http://www.pertanika.upm.edu.my/resources/files/Pe...

Abstract

This work examines the physical and electrical breakdown characteristics of kenaf paper coated with Polyvinyl Alcohol (PVA) for application in power transformers. The paper was made from kenaf bast fibers using the soda pulping method, whereby the pulps were subjected to 12,000 beating revolutions. PVA with weight percentage concentration up to 6% was introduced to the beaten kenaf through a spin coating approach. The structure of the kenaf paper was examined through Scanning Electron Microscopy (SEM). The physical properties examined were apparent density, Tensile Index (TI), Burst Index (BI), and Tear Index (TeI), while AC breakdown voltage and strength were analyzed for the electrical property. It is found that the beating and external PVA improve the kenaf paper’s apparent density, TI, BI, and AC breakdown strength while the TeI decreases.

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Item Type:	Article
AGROVOC Term:	kenaf
AGROVOC Term:	polymers
AGROVOC Term:	electrical properties
AGROVOC Term:	pulping
AGROVOC Term:	scanning electron microscopy
AGROVOC Term:	pulp and paper industry
AGROVOC Term:	electronics
AGROVOC Term:	components
AGROVOC Term:	electrical insulation
Geographical Term:	Malaysia
Uncontrolled Keywords:	Kenaf paper, physical and electrical properties, PVA coating
Depositing User:	Ms. Azariah Hashim
Date Deposited:	27 Jan 2025 01:48
Last Modified:	27 Jan 2025 02:33
URI:	http://webagris.upm.edu.my/id/eprint/1909

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