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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Bahan Alam Terbarukan Jurnal Riset Kimia Jurnal IPTEK Indonesian Journal of Chemistry Indonesian Journal of Chemical Analysis (IJCA) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences International Journal of Engineering, Science and Information Technology Relativitas : Jurnal Riset Inovasi Pembelajaran Fisika Mechanical Engineering for Society and Industry Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal The International Conference on Education, Social Sciences and Technology (ICESST) Journal Of Carbazon Jurnal Malikussaleh Mengabdi JURNAL PERSEGI BULAT Jurnal Polimesin Jurnal Solusi Masyarakat Dikara Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Bahan Alam Terbarukan
Rozanna Dewi
Universitas Malikussaleh
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Journal : Jurnal IPTEK

 1 
Modification of Recycled HDPE Composite with OPEFB Microfibers Through the Melt Blend Extruder Process Zulnazri, Zulnazri; Dewi, Rozanna; Sylvia, Novi
Jurnal IPTEK Vol 24, No 2 (2020): December
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.928

Abstract

Oil palm empty fruit bunches (OPEFB), have not many been used as a have economic value material. OPEFB fiber content can be using as a filler to composites fabrication. The fiber contained in the OPEFB can be increase composites quality because have high thermal and mechanical properties. SEM analysis shows that OPEFB waste with a size of 63 and 90 ?m is suitable to be use as a filler because of the compatibility of the fiber and matrix matrix. As with the results of the DSC analysis, the melting point of HDPE-TKKS composite with 63 ?m fiber size reaches 133.58 0C while the melting point of HDPE-TKKS composite with 90 ?m fiber size reaches 134.41 0C. The FTIR test results also show that the indications of the two samples have the same chemical composition, namely lignicellulose. The best tensile strength is obtained which is equal to 21.11 MPa and the force required to break the composite is 391.56 N, these results were obtained from composites with a ratio of 60: 40 (matrix : filler) and 90 µm fiber size.Key words: Plastic, HDPE, fiber, OPEFB, composite 
Modification of Recycled HDPE Composite with OPEFB Microfibers Through the Melt Blend Extruder Process Zulnazri Zulnazri; Rozanna Dewi; Novi Sylvia
Jurnal IPTEK Vol 24, No 2 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i2.928

Abstract

Oil palm empty fruit bunches (OPEFB), have not many been used as a have economic value material. OPEFB fiber content can be using as a filler to composites fabrication. The fiber contained in the OPEFB can be increase composites quality because have high thermal and mechanical properties. SEM analysis shows that OPEFB waste with a size of 63 and 90 ?m is suitable to be use as a filler because of the compatibility of the fiber and matrix matrix. As with the results of the DSC analysis, the melting point of HDPE-TKKS composite with 63 ?m fiber size reaches 133.58 0C while the melting point of HDPE-TKKS composite with 90 ?m fiber size reaches 134.41 0C. The FTIR test results also show that the indications of the two samples have the same chemical composition, namely lignicellulose. The best tensile strength is obtained which is equal to 21.11 MPa and the force required to break the composite is 391.56 N, these results were obtained from composites with a ratio of 60: 40 (matrix : filler) and 90 µm fiber size.Key words: Plastic, HDPE, fiber, OPEFB, composite 
Experimental Study of Cellulose Extraction From Oil Palm Empty Fruits Bunches Zulnazri Zulnazri; Muhammad Ikhwanul Adha; Rozanna Dewi
Jurnal IPTEK Vol 26, No 1 (2022)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2022.v26i1.2353

Abstract

Empty Palm Oil Bunches is one of the non-timber solid wastes produced in the process of making palm oil. Empty palm oil bunches that have been cleaned and then hydrolyzed with HNO3 and NaNO2 are 3.5% at a temperature of 90oC. Then it was delignified by varying the concentration of NaOH 1%, 2%, 3%, 4% and using temperature variations of 40 oC, 50 oC, and 60 oC for 1 hour. Then the cellulose obtained was tested by FTIR test, XRD test, SEM test, and the yield was calculated. From the results of the FT-IR test, it is obtained that the high wave number is 2800-3300 cm-1 and the low wave number is 500-1400 cm-1. The spectrum shows a broad absorption peak located at 2800-4000 cm-1 which is a stretch of the –OH group. The highest yield content was found at a concentration of 4% NaOH at 90oC with a yield of 90.4%. The lowest yield is found at a concentration of 3% NaOH at a temperature of 60oC with a yield of 24.88%. From the results of these studies, it can be seen that the greater the concentration of NaOH used affects the cellulose produced.
Experimental Study of Cellulose Extraction From Oil Palm Empty Fruits Bunches Zulnazri, Zulnazri; Adha, Muhammad Ikhwanul; Dewi, Rozanna
Jurnal IPTEK Vol 26, No 1 (2022): May
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2022.v26i1.2353

Abstract

Empty Palm Oil Bunches is one of the non-timber solid wastes produced in the process of making palm oil. Empty palm oil bunches that have been cleaned and then hydrolyzed with HNO3 and NaNO2 are 3.5% at a temperature of 90oC. Then it was delignified by varying the concentration of NaOH 1%, 2%, 3%, 4% and using temperature variations of 40 oC, 50 oC, and 60 oC for 1 hour. Then the cellulose obtained was tested by FTIR test, XRD test, SEM test, and the yield was calculated. From the results of the FT-IR test, it is obtained that the high wave number is 2800-3300 cm-1 and the low wave number is 500-1400 cm-1. The spectrum shows a broad absorption peak located at 2800-4000 cm-1 which is a stretch of the –OH group. The highest yield content was found at a concentration of 4% NaOH at 90oC with a yield of 90.4%. The lowest yield is found at a concentration of 3% NaOH at a temperature of 60oC with a yield of 24.88%. From the results of these studies, it can be seen that the greater the concentration of NaOH used affects the cellulose produced.
Making Biochar from Coffee Grounds and Powder Waste Through the Torrefaction Process and Adding NaHCO3 Faturrahman, Muhammad; Zulnazri, Zulnazri; Dewi, Rozanna
Jurnal IPTEK Vol 29, No 1 (2025): May
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i1.6666

Abstract

This research examines biochar manufacture from waste coffee grounds and wood dust using the dry torrefaction method with a temperature ratio of  250°C  and 300°C. The adhesive used at 5% shows a calorific value of 6,786 cal, volatile matter 81.82%adb, water content 1.79%ar, and ash content 9.52%adb. Meanwhile, the adhesive at 7% obtained a calorific value of 6,264 cal, water content of 3.9%ar, volatile matter 81.82%ab, and ash content of 14.29%adb. The results of the functional group analysis with FT-IR of the two torrefaction biobriquettes showed the presence of CH and OH groups originating from cellulose compounds, indicating that the carbon quality in the torrefaction charcoal is still high. Activated charcoal products produced through torrefaction are briquettes using tapioca flour adhesive to be molded as bio briquettes, and the results are tough and not easily broken.
Co-Authors Abrar Muslim Adha, Muhammad Ikhwanul Adi Saputra Ismy Adi Setiawan Adrin, Prista Agam Muarif Agustinus Purna Irawan Ahmad Fikri Ahmad Fikri Ahmadi Ahmadi Aida Safitri Ainun, Sarifah Almia Permata Putri Amalia, Nabuia Amiratul Husna Amri Amri Ananda Monarita Ananda, Aldila Angga Tri Agusna PA Anggi Dwi Safitri Anggraini, Dea Riski Annisa Ramadina Anugrah Yunika Tambunan Ardiansyah, Zul Fadly Ari Irawan Ari Salahudin Arif Maulana Aulia, Rauzatul Authar, Mhammad Azhari Azhari Azhari Azhari Chairina Chairina Chatarina Umbul Wahyuni Cionita, Tezara Cut Milya Dahliana Abdullah Deasy Siska Desriani, Chintiara Devi, Sri Marlia Dewi Lestari Dinda Humaira Eddy Kurniawan Effendy, Ahmad Hidayat Eni Suryani Etanto Heiliano Wijayanto Fachry Abda El Rahman Fadhli Syamsudin Fahirul Muhar Faisal . Faisal Faisal Faisal Faisal Faisal Faisal Faisal Faisal Farah Irda Farid Yoanda Fatnia, Fatnia Faturrahman, Muhammad Feni Lestari Berutu Fibarzi, Wiza Ulfa Firda, Hanisyah Fitriani Fitriani Fitriani Fitriani Fitriyana, Deni Fajar Gunawati Gunawati Hadi, Agung Efriyo Halimatus Sakdiah Hanif, Hanif Harahap, Nurul Aulia Hendi Setiawan Holila, Manna Husni Husin Ibrahim, Ishak Ilhami, Gita Ayu Imran, Al Ichlas Indra Nofriadi Iqbal Kamar Ishak Ishak Ishak Ishak Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalalul Akbar, Said Jamiluddin, Jamiluddin Jannah, Rouzatul Janni, Miftahul Jasmani Jasmani Jullimursyida Junaedi, Thomas Kalatharan, Sujentheran Nair Kamar, Iqbal Khalsiah Khalsiah Kuniawan, Eddy Leni Maulinda, Leni Lidia Manik Lukman Hakim Lukman Hakim M Ali Anto M Riza Mahdayani Sinaga, Citra Puspita Maizuar Maizuar Masrullita Masrullita Masrullita Masrullita Masrullita, Masrullita Mat Rejab, Mohd Ruzaimi Mat Rejab, Mohd. Ruzaimi Mawardati Mawardati Medyan Riza Medyan Riza Melan Amanah, Ananda Meriatna Meriatna Milarahma Yulianti Mohd Ruzaimi Mat Rejab Muammar Khadafi Muhammad Abrar Muhammad Daud Muhammad Farhan Muhammad Ikhwanul Adha Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad nur Ichsan Tamiogy Muhammad Subhan Muhammad, Muhammad Muji Setiyo Muliadi Mulyawan, Rizka Muthawali, Dede Ibrahim Muthia Septiana Muthia Septiana, Muthia Mutia Reza Nabila Adhani Nainggolan, Yuni O Nasrul ZA Nasrul ZA, Nasrul Nasrun, Mahdalena Novi Sylvia Nur Annisa Nur rizqi Fattah Lubis Nurdiah, Ika Nurlaila, Rizka Nurmazaya, Vini Nurul Khumaida Oktaviani oktaviani Pane, Nurul Anisa Prayogo, Wisnu Putri, Balqis Eka putri, intan nanda Putri, Melani Annisa Rafika Rafika Rahayu Retnowulan, Sri Rahmi Rahmi Rahmi, Delfi Ramadhan, Cindia Ramdhani, Nevia Arbi Ratna Sari Raudhatul Ulfa Reci Anggraini Retnowulan, Sri Rahayu Ridwandi Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Nurlaila Rizkya Faradaiza Rizqon Hasibuan Rouzatul Jannah Samsudin Anis Shintia Clarita Sigian, Zikri Husni Silitonga, Hanna Amaliah Siregar, Januar Parlaungan Siti Maulidya Salsabila Sry Rahmadani Sulhatun Sulhatun Suryati Suryati Syamsul Bahri Syamsul Bahri Syamsul Bahri Syarifah Yulisa Syurvani Else Putri Tarigan, Jhodi Okta Albiqho Tasya Maidayanti Teuku Rihayat Tezara Cionita Vania, Sherryl Veithzal Rivai Zainal Wijayanto, Etanto Heiliano Wisnu Prayogo Wiyani, Sri Wiza Ulfa Fibarzi Wusnah Wusnah, Wusnah Yani, Firda Tirta yanti, eva Yopi Aji Akbar Yosi, Andre Yulia Yulia Yunardi, Y Yuris Setyoadi Zahratun Mauliza Zainuddin Ginting Zikri Amarullah Surbakti Zulnazri Zulnazri, Z Zurrahmi, Zurrahmi