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Karakteristik Termal Material Komposit Berbahan Dasar Polipropilena dan Batang Pisang Tajalla, Gusti Umindya Nur; Andriansyah, Prisky; Riyadi, Ilham Tri; Vadila, Mei Lisa Nur; Laksono, Andromeda Dwi
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol23no1.554

Thermal insulation in a residence can help keep the room's temperature stable, allowing maximum comfort at work and relaxation. Because of its low thermal conductivity value of 0.1166 W/mK, banana stem fiber (BP) is an environmentally friendly thermal insulation material, while the matrix uses polypropylene (PP). Because excessive polypropylene production can pollute the environment, recycled polypropylene (PPDU) should be investigated as a candidate matrix. This study employs compression molding at a pressure of 8 MPa and a temperature of 170 °C for 60 minutes, with volume fractions of banana stem fibers varying by 10%, 30%, and 50%, as well as different matrix types, namely PP and PPDU. The manufacturing results were then evaluated using density and thermal conductivity tests. The density testing results for BP/PP and BP/PPDU decreased as more volume fractions were added. This phenomenon can occur as a result of void formation during the manufacturing process. Furthermore, the thermal conductivity values for BP/PP increased from 0.37 to 0.89 W/mK and from 0.58 to 0.94 W/mK for BP/PPDU, respectively. The lower the thermal conductivity value, the smaller the volume fraction of fiber. Similarly, pure PP is preferable because it has lower conductivity values than PPDU.

APLIKASI TEKNOLOGI FILTER AIR DARI LIMBAH RUMAH TANGGA DI KAWASAN TRANSAD KM 8 KELURAHAN KARANG JOANG BALIKPAPAN UTARA Triana, Yunita; Dewanto, Hizkia Alpha; Laksono, Andromeda Dwi; Miles, Austin; Marippi, Alan; Lesmana, Muhammad Zidan; Rungsa, Yudianto; Batatta, Denada Yudhistira; Fadhilah, Hana’; Azhary, Kartika Nerissa; Ali, Shodikin; Ismail, Andi Idhil
PIKAT Jurnal Pengabdian Kepada Masyarakat ITK Vol. 5 No. 2 (2024): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/pikat.v5i2.1200

Kelurahan Karang Joang merupakan salah satu kelurahan yang berada di Kecamatan Balikpapan Utara dengan luas wilayah 93.09 km2, dengan jumlah penduduk sebanyak 31.276 jiwa. Salah satu daerah kelurahan Karang Joang adalah Jl. Kesatriaan (Transad) KM. 8. Salah satu permasalahan di kawasan Transad adalah air sumur bor yang berbau dan tinggi akan kandungan zat besi dan juga banyaknya limbah dari perkebunan kelapa sawit milik warga. Untuk mengatasi permasalahan tentang air sumur bor yang berbau dan limbah kelapa sawit yang dapat mencemari lingkungan ini, maka dilakukan pembuatan teknologi filter air dengan memanfaatkan limbah kelapa sawit berupa cangkang dan serabut kelapa sebagai media filter dan menggunakan limbah rumah tangga berupa galon bekas sebagai wadah teknologi filter air dengan melalui beberapa tahap. Pada tahap persiapan dilakukan dengan melakukan survey dan observasi ke kawasan Transad KM.8 Karang Joang. Pada tahap pelaksanaan dilakukan dengan beberapa kegiatan seperti mempersiapkan alat dan bahan, pelaksanaan dilakukan beberapa kegiatan seperti mempersiapkan alat dan bahan, pelaksanaan tahapan pembuatan teknologi filter air dan melakukan sosialisasi terkait pemanfaatan kegunaan bahan dan cara kerja Filter air. Terakhir, tahap evaluasi dengan melakukan pemantauan secara berkala dan pemeriksaan visual komponen filter air selama 4 minggu. Adapun pengujian kandungan kadar besi hasil filter air ini, yaitu sebesar 0,5 mg.

Studi Pengaruh Komposisi Pengisi Serat Alam Kayu Galam (Melalueca Leucadendra) Bentuk Serutan pada Sifat Mekanik dan Mikrostruktur Komposit Poliester Sebagai Material Untuk Aplikasi Bilah Kincir Angin: Study of Composite Composition Effect of Natural Shavings of Galam Wood Fiber (Melalueca Leucadendra) on the Mechanical and Microstructure Properties of Polyester Composites as Materials for the Windmill Blades Application Laksono, Andromeda Dwi; Ismail, Ika; Ningrum, Cahyaningtyas Ratna
JURNAL SAINTIS Vol. 19 No. 1 (2019)
Publisher : UIR Press

[ID] Sebagai alternatif sumber energi konvensional, energi angin merupakan salah satu energi alternatif yang banyak dikembangkan. Pemanfaatan energi ini tidak lepas dari alat pengonversinya, kincir angin. Salah satu komponen kincir angin yang cukup penting adalah bilah. Bilah sering mengalami masalah berupa pengikisan pada bagian permukaannya akibat benturan dengan oleh partikel yang terbawa oleh angin yang dapat mengakibatkan fungsi bilah tidak optimal. Sehingga, dibutuhkan material pengganti yang lebih kuat tetapi ringan, yakni komposit. Komposit yang digunakan adalah komposit serat alam (serat Melaleuca leucadendra-poliester). Dalam penelitian ini akan dianalisa pengaruh fraksi volume serat berbentuk serutan terhadap kekuatan tarik, kelenturan dan ketangguhan. Pembuatan komposit serat alam Kayu Galam (Melaleuca leucadendra)-poliester dengan cara mencampurkan resin, katalis dan serat Kayu Galam yang berbentuk serutan kemudian dicetak didalam cetakan yang telah dilapisi alumunium foil. Sampel kemudian dilakukan pengujian kekuatan tarik dengan standar ASTM D 638, pengujian tekuk dengan standar ASTM D 790 serta pengujian impak dengan standar ASTM D 6110. Metode yang digunakan dalam pembuatan adalah metode hand lay-up. Hasil dari penelitian ini adalah nilai optimum yang dicapai yaitu 70% serat pada semua uji mekanik. Didapatkan nilai kekuatan tarik berada sebesar 13,07 MPa, kekuatan tekuk optimum 36,8 MPa dan nilai optimum dari kekuatan impak sebesar 590,39 MPa. [EN] As an alternative to conventional energy sources, wind energy is one of the many alternative energies that have been developed. The utilization of this energy is inseparable from its conversion tool, windmills. One component of the windmill that is quite important is the blade. Blades often experience problems in the form of erosion on the surface due to collisions by particles carried by the wind which can cause the blade function to be not optimal. So, it takes a replacement material that is stronger but lighter, namely composite. The composites used were natural fiber composites (Melaleuca leucadendra-polyester fibers). In this study, the effect of the volume fraction of fiber in the form of shavings on tensile strength, flexibility, and toughness will be investigated. The making of natural fiber composites of Galam Wood (Melaleuca leucadendra) -polyester by mixing resin, catalyst, and Galam Wood fiber in the form of shavings is then printed in a mold that has been coated with aluminum foil. Samples were then tested for tensile strength with ASTM D 638 standard, bending test with ASTM D 790 standard and impact testing under ASTM D 6110 standard. The method used in manufacturing was the hand lay-up method. The result of this study is the optimum value achieved is 70% fiber in all mechanical tests. Obtained tensile strength values of 13.07 MPa, the optimum bending strength of 36.8 MPa and the optimum value of impact strength of 590.39 MPa.

Application of Fiber Made from Bark of Salak (Salacca Zalacca) Tree as Reinforcement in Polymer Matrix Composites Laksono, Andromeda Dwi; Tajalla, Gusti Umindya; Parusha, Oliever Andrea
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.9

Although Indonesia is abundant supply of salak (Salacca zalacca) fruit, bark of salak is not yet advanced utilized. This work therefore chracterized its fiber and process it into polymer matrix composites. The study was conducted using varied chemical treatments. Delignification using NaOH solution with concentration of 1%, 5%, 10% with 3 hours immersion time. Bleaching treatment was using H2O2 media with varied immersion time at 30, 60 and 90 minutes. Tensile tests, impact tests, microscopic image test using scanning electron microscopy (SEM) and chemical composition test using fourier-transform infra-red (FTIR) spectroscopy were carried out in this work. This work showed that optimalÂ delignificationÂ treatment can be found when 5% NaOH concentration was used. The corresponding ultimate tensile strength and impact strength were 25.47 MPa and 11.95 kJ/m2, respectively. The optimal bleaching treatment was 90 minutes immersion. The results of SEM image analysis showed that the salak midrib fiber composite without treatment has a lousy interface. Meanwhile, fiber with delignification treatment only has reasonable good interface and fiber with delignation treatment followed by bleaching treatment has excellent interface. FTIR test results showed that the salak midrib fiber composite without treatment had a cellulose component although hemicellulose and lignin levels still dominated. TheÂ delignificationÂ treatment had succesfully broken the lignin-specific C = O bond but still could not eliminated hemicellulose and lignin bond. In comparison, bleaching treatment reduced intensity of OH intensity, CH and CO which are typical hemicellulose and lignin functional groups. Based on the results of the study, salak midrib fiber with delignification chemical treatment using 5% NaOH for 3 hours followed by bleaching treatment using 2% H2O2 for 90 minutes was the best treatment.

Application of Fiber Made from Bark of Salak (Salacca Zalacca) Tree as Reinforcement in Polymer Matrix Composites Laksono, Andromeda Dwi; Tajalla, Gusti Umindya; Parusha, Oliever Andrea
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.9

Although Indonesia is abundant supply of salak (Salacca zalacca) fruit, bark of salak is not yet advanced utilized. This work therefore chracterized its fiber and process it into polymer matrix composites. The study was conducted using varied chemical treatments. Delignification using NaOH solution with concentration of 1%, 5%, 10% with 3 hours immersion time. Bleaching treatment was using H2O2 media with varied immersion time at 30, 60 and 90 minutes. Tensile tests, impact tests, microscopic image test using scanning electron microscopy (SEM) and chemical composition test using fourier-transform infra-red (FTIR) spectroscopy were carried out in this work. This work showed that optimalÂ delignificationÂ treatment can be found when 5% NaOH concentration was used. The corresponding ultimate tensile strength and impact strength were 25.47 MPa and 11.95 kJ/m2, respectively. The optimal bleaching treatment was 90 minutes immersion. The results of SEM image analysis showed that the salak midrib fiber composite without treatment has a lousy interface. Meanwhile, fiber with delignification treatment only has reasonable good interface and fiber with delignation treatment followed by bleaching treatment has excellent interface. FTIR test results showed that the salak midrib fiber composite without treatment had a cellulose component although hemicellulose and lignin levels still dominated. TheÂ delignificationÂ treatment had succesfully broken the lignin-specific C = O bond but still could not eliminated hemicellulose and lignin bond. In comparison, bleaching treatment reduced intensity of OH intensity, CH and CO which are typical hemicellulose and lignin functional groups. Based on the results of the study, salak midrib fiber with delignification chemical treatment using 5% NaOH for 3 hours followed by bleaching treatment using 2% H2O2 for 90 minutes was the best treatment.

Transformasi Limbah Sabut Kelapa Menjadi Cocopeat: Solusi Ekonomi Kreatif bagi Warga Pantai Lamaru Balikpapan Tajalla, Gusti Umindya Nur; Lubis, Muthia Putri Darsini; Amalia, Lia; Laksono, Andromeda Dwi; Sulaksono, Rachmad Prabowo; Dharmayanti, Amilita Medisa Rizky; Akbar, Aulia Arif; Anggeswari, Inggrid Dya; Destiny, Keysi Devain; Sofwan, Muhammad; Budiarti, Dini Tri; Anggraini, Elistria; Paramita, Fika
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 16, No 2 (2025): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v16i2.20390

Pandemi COVID-19 telah memberikan dampak signifikan terhadap sektor pariwisata, termasuk masyarakat pesisir Lamaru yang menggantungkan hidupnya pada aktivitas wisata. Sebagai upaya pemulihan ekonomi dan pemberdayaan masyarakat, kegiatan ini berfokus pada pemanfaatan potensi lokal, yakni sabut kelapa, menjadi produk yang memiliki nilai tambah. Melalui kegiatan pengabdian masyarakat, penulis melakukan sosialisasi dan pelatihan kepada masyarakat RT 19 Kelurahan Lamaru Kota Balikpapan mengenai pembuatan cocopeat dari limbah sabut kelapa. Tujuannya adalah untuk meningkatkan keterampilan masyarakat, menciptakan peluang usaha baru, serta mengurangi limbah organik. Kegiatan ini dilatarbelakangi oleh meningkatnya minat masyarakat terhadap berkebun di masa pandemi. Hasil yang diharapkan dari kegiatan ini adalah meningkatnya kemampuan masyarakat dalam memproduksi cocopeat berkualitas, serta terbentuknya kelompok usaha kecil menengah yang mampu memasarkan produknya. Selain itu, kegiatan ini juga diharapkan dapat meningkatkan kesadaran masyarakat akan pentingnya pengelolaan limbah organik dan pemanfaatan sumber daya lokal. Berdasarkan rekapitulasi hasil kuesioner pemahaman materi dan kuesioner kepuasan, didapatkan data bahwa tingkat pemahaman peserta di atas 70% dimana sebagian besar antusias pada materi yang disampaikan.

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