Abstract
This study aims to determine the effect of alkali treatment and hydrogen peroxide on the change in diameter of coconut fiber as an environmentally friendly composite material. This research was carried out with several stages, namely: preparation of materials and tools, treatments, measurement of diameter, analysis, and discussion. Materials and equipment used are coconut fiber, alkaline solution, hydrogen peroxide solution, distilled water, a set of immersion media, and digital microscopes. Coconut fiber was soaked in alkaline solution with 10% concentration for 1, 3, 5, 7, 9, and 11 hours, then dried in a furnace at 90oC for 5 hours. Furthermore, coconut fiber was soaked again in potassium permanganate solution with a concentration of 0.5% for 1, 3, 5, 7, 9, and 11 hours, then dried in a furnace at 90oC for 5 hours. Then the coconut fiber was soaked again in a hydrogen peroxide solution with a concentration of 10% for 1, 3, 5, 7, 9, and 11 hours, then dried in a furnace at 90oC for 5 hours. After that, using a digital microscope the diameter of coconut fiber is measured. Based on the measurement results, it was concluded that the diameter of coconut fiber was degraded in diameter after soaking in alkaline solution, potassium permanganate, and hydrogen peroxide. The highest percentage reduction in diameter was 58.08% in the third treatment.
Highlights
Abstrak—Penilitian ini bertujuan untuk menentukan pengaruh perlakuan alkali dan hidrogen peroksida terhadap perubahan diameter serat sabut kelapa sebagai material komposit ramah lingkungan
This study aims to determine the effect of alkali treatment and hydrogen peroxide on the change in diameter of coconut fiber as an environmentally friendly composite material
Analisis Pengaruh Lama PerendamanSerat Sabut Kelapa Dalam Larutan NaOH Terhadap Perubahan Diameter Serat Sabut Kelapa
Summary
Kebanyakan masyarakat Indonesia masih memahami bahwa serat alam tidak terlalu banyak manfaatnya, bahkan tidak sedikit yang menganggapnya sebagai bahan yang tak berguna yang pada akhirnya akan menjadi sampah. Serat sabut kelapa mengalami perubahan diameter setelah direndam selama 3, dan 5 jam dalam larutan alkali dengan konsentrasi 5%, 10%, 15%, dan 20%. Degradasi diameter terbesar dipoeroleh pada serat sabut kelapa yang direndam selama 5 jam dalam larutan alkali 15% sebesar 56,08 % [5]. Sebagaimana yang dikemukakan di atas bahwa telah dilakukan perlakuan serat sabut kelapa dengan tingkat konsentrasi alkali 5%, 10%, 15%, dan 20%. Maka dalam penelitian ini akan dilakukan penelitian lanjutan dengan memberi perlakuan serat sabut kelapa secara bertingkat dengan larutan kimia yang berbeda yaitu serat sabut kelapa direndam dalam larutan alkali kemudian kalium permanganat kemudian hidrogen peroksida. Tujuan yang hendak dicapai dalam penelitian ini yaitu menentukan pengaruh lama perendaman serat sabut kelapa dalam larutan alkali dan hidrogen peroksida terhadap perubahan diameter serat sabut kelapa
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