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Tekat Dwi Cahyono
Universitas Darussalam Ambon
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Other

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The Hydrophilicity of Samama Wood Surface Quality after Boron, Methyl Methacrylate Impregnation, and Heat Treatment Cahyono, Tekat Dwi; Priadi, Trisna; Noviyanti, Eka; La Djumat, Juni; Kaliky, Fitriyanti
Jurnal Sylva Lestari Vol. 12 No. 1 (2024): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i1.851

Abstract

Indicators of surface roughness and surface-free energy can represent the improvement in wood surface quality. In this study, those two indicators were used to determine the change in the samama (Anthocephalus macrophyllus) wood surface following two modification steps, namely impregnation and heat treatment. The first step was boron impregnation in two forms applied separately, i.e., boric acid and borax. The second step was impregnation of methyl methacrylate followed by heat treatment at 90°C and 180°C. Surface roughness was determined following the ISO 4287:1997 standard, and surface free energy was analyzed using the Rabel Method. The results showed that the radial surface of samama wood naturally had a lower roughness than the tangential surface. Impregnation with boric acid, borax, and methyl methacrylate increased the wood surface roughness. However, heat treatment at 180°C tended to smooth the rough surface. Total surface free energy was altered after borax and methyl methacrylate impregnation. However, heat treatment seemingly withdrew the alteration. The polar components and dispersion contributed to total surface free energy with different compositions. In this study, the change in surface roughness was not congruent with the change in total surface free energy. Keywords: boron, heat treatment, impregnation, samama, surface free energy
Local Community Processing Based on Sago in Leihitu District, Central Maluku Regency: Olahan Lokal Masyarakat Berbasis Sagu di Kecamatan Leihitu Kabupaten Maluku Tengah Hadidjah Latuponu; Samin Botanri; Tekat Dwi Cahyono; Suud Marasabessy; Farida Mony; Tina D. Kaisupy; Haris Salampessy; Chomsa DU. Bassary; M. Riadh Uluputty
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 8 No. 1 (2024): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

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Abstract

Hitumesing Village is one of the (State) Villages in Central Maluku Regency, Maluku Province which has the largest sago forest in the Leihitu District area, namely 238.81 ha or 50.71% of the area of sago forest on Ambon Island. The community has used sago as a product with economic value in order to support the family economy and as a source of village income. Community service activities have been carried out and the partner is the Hitumessing Village/State government. The approach implemented involves counseling, training and mentoring. The result of this activity is the empowerment of community groups in producing various types of processed food made from sago. The benefits obtained include opening new jobs, developing production centers for various cakes and other products that use sago as a basic ingredient, increasing family income, improving quality of life, and improving community welfare. This is part of efforts to reduce poverty levels in rural areas, especially in Hitumessing village, Leihitu sub-district. It is also hoped that with the available business space, it will be an impetus for new economic growth and move the economy in rural areas and sub-district areas in a better direction in the future.
Co-Authors . Syahidah A.A. Ketut Agung Cahyawan W Chomsa DU. Bassary Dedy Sofyan Dedy Sofyan Farida Bahalwan Farida Mony Fauzi Febrianto Fitriyanti Kaliky Hadidjah Latuponu Haris Salampessy Imam Wahyudi Indrawan, Imam Wahyudi Jumadil Thepu Juni La Djumat Kamaruddin Kamaruddin Kapitanhitu, Rusli La Djumat, Juni M Nasir Benunur M. Riadh Uluputty Muhammad Bula Muhammad Nasir Benunur Narti Kawarnidi Noviyanti, Eka Nurhaya Yusuf Putra, Guruh Sukarno Samin Botanri Sedek Karepesina Sudiono Wali Suud Marasabessy Syarif Ohorella Tina D. Kaisupy Trisna PRIADI Wardhani, Miranti Kusuma