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Nurul Asni
Akademi Kimia Analisis Caraka Nusantara, Komplek Timah Kelapa Dua, Depok 16951
Electrical & Electronics Engineering Energy Physics Other

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PENGARUH PERENDAMAN BAMBU PETUNG,BAMBU HITAM DAN BAMBU APUS DI AIR RAWA Nurul Asni; Djonaedi Saleh; Abrarsyah Algamar
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.919 KB) | DOI: 10.21009/0305020616

Abstract

Soaking bamboo in swamp water serves to prolong the use of materials in the building structure. Soaking bamboo in swamp water was conducted for 60 days with an interval of 5 days. The longer soaking the bamboo then the stronger termite pest resistance. After bamboo was soaking for 15 days, termites did not want to eat bamboo. This situation is caused by methyl (CH3) which occurs due to the reaction between cellulose with methane in the swamp water. Bending test of bamboo which soaked in swamp water obtained the increase in modulus elasticity of before it soaked such as bamboo petung which increase from 411MPa to 513 MPa, bamboo hitam from 411 to 494 MPa and bamboo apus from 411 to 621MPa after. However Tensile strength of those three bamboo was decreased through increasing time of soaking. For instance Bamboo petung’s tensile strength was descerase from 95.3 MPa to 26.7 Mpa, bamboo hitam from 104.2 MPa to 52.6 Mpa and bamboo apus from 93.7 MPa to 43.2 Mpa. Keywords: bamboo, soaking swamp water, tensile strength, modulus of elasticity.
PLASTIK BIODEGRADABLE BERBAHAN AMPAS SINGKONG DAN POLIVINIL ASETAT Nurul Asni; Djonaedi Saleh; Nadia Rahmawati
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 4 (2015): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2015
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.911 KB)

Abstract

Cassava waste by product from tapioca flour. For reducing environmental pollution cassava waste be use biodegradable plastics by adding polivinil asetat as adhesive and glycerol as plastisizer. The aim of this research is for knowing physical characteristic of biodegradable plastic.Ratio betwen cassava west and polivinil asetat (wt%) are 9:1; 8:2;7:3;6:4. Tensile strength and elongation result from this research for 6:4 ratio’s are 0,1019 ± 0,339 MPa and 26,178%. Tensile strength and elongation for 9:1, ratio’s are 0,1659 ± 0,035 MPa and 22,386%. Key word : Cassava waste, Polivinil Asetat, Glycerol, Biodegradable plastics.
Co-Authors Abrarsyah Algamar Djonaedi Saleh Djonaedi Saleh Nadia Rahmawati