Article Per Year (5 Year)
p-Index From 2021 - 2026
1.686
P-Index
This Author published in this journals
All Journal Journal of Fibers and Polymer Composites Jurnal Karya Pengabdian Teknik Mesin Protech Biosystems Journal
Nasmi Herlina Sari
University of Mataram
Agriculture, Biological Sciences & Forestry Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
Influence of Pumice Particles on the Mechanical and Morphology Properties of Polyester-Cornhusk Fiber Composites Nasmi Herlina Sari; Suteja Suteja; I Putu Lokantara; Topan Gusti Wibowo
Journal of Fibers and Polymer Composites Vol. 1 No. 2 (2022): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (724.561 KB) | DOI: 10.55043/jfpc.v1i2.54

Abstract

The purpose of this study was to look into the performance of a cornhusk fiber (CHF) reinforced polyester composite with pumice powder (PP) as a filler. The influence of varied PP volume fractions on composite tensile, bending, impact, and fracture morphology was studied. Using the hot press process, polyester-CHF composites with varied volume fractions of PP filler, namely 5%, 10%, 15%, 20%, 25%, and 30% wt, were created. The results showed that increasing the PP volume fraction from 5% to 15% enhanced the tensile strength of the polyester-CHF composite. The modulus of elasticity and bending modulus tend to grow when filler Pp decreases from 5% to 30%, but elongation value decreases. Furthermore, the best bending strength and impact toughness of the polyester-CHF composite were produced at a volume fraction of PP filler of 20%. SEM images indicate the presence of CHF pull out in all composite variations as well as the number of voids dependent on the PP filler volume.
Aplikasi Alat Tanam Padi di Dusun Ketapang Kecamatan Lingsar Sujita Sujita; Nasmi Herlina Sari; Achmad Zainuri; Sinarep Sinarep; I Made Suartika
JURNAL KARYA PENGABDIAN Vol 4, No 1 (2022): April, Jurnal Karya Pengabdian
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2264.944 KB)

Abstract

Kemajuan pembangunan pertanian di Propinsi Nusa Tenggara Barat terlihat sangat pesat. Daerah dengan sebutan Bumi Gogo Rancah (GORA) kini menjadi lumbung pangan nasional. Propinsi ini merupakan penyumbang produksi pangan baik padi, jagung, kedelai, bawang merang, cabai, sapi, serta menyusul tebu. Untuk wilayah  Kabupaten Lombk Barat,  yang merupakan sumber penghasil padi terbesar adalah Dusun Ketapang, Desa Gegerung, Kecamatan Lingsar, tepatnya pada kelompok tani (Poktan) Pade Angkat. Kendala utama budidaya padi adalah penanaman secara manual, yang menyebabkan waktu penanaman benih padi lama menyebabkan biaya  budidaya padi meningkat signifikan. Penggunaan alat tanam padi sebagai pemecahan masalah, mampu meningkatkan efisiensi waktu sekitar 84,30% sehingga dapat  menghemat tenaga kerja sebesar 92,5%, sekaligus mengurangi biaya tanam sekitar 33,3%
Aplikasi Alat Penetas Telur Kontrol Suhu dan Kelembaban di Desa Batu Tulis Kecamatan Jonggat Lombok Tengah Sujita Sujita; Nasmi Herlina Sari; Sinarep Sinarep; Achmad Zainuri; Nur Kaliwantoro
JURNAL KARYA PENGABDIAN Vol. 4 No. 2 (2022): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1257.485 KB) | DOI: 10.29303/jkp.v4i2.136

Abstract

Desa Batu Tulis Kecamatan Jonggat Kabupaten Lombok Tengah dikenal  sebagai petani dan peternak itik gamel. Ciri khas telur itik gamel warna telur putih dan besar. Telur asin asal Desa Batu Tulis merupakan produk unggulan, oleh-oleh khas Lombok yang paling banyak dicari oleh wisatawan baik wisatawan lokal maupun mancanegara. Karena rasa dan tekstur kuning telur itik yang khas dan bentuk yang besar. Kendala yang  dialami oleh peternak itik di Desa Batu Tulis adalah ketersediaan DOD berkurang, karena saat penetasan telur itik sering mengalami permasalahan. Telur itik hanya dapat  disimpan selama 3 – 6 hari di dalam suhu kamar (25–27°C). Apabila telur disimpan lebih dari waktu tersebut, telur akan fertil lalu mati. Salah satu cara mengatasi kendala tersebut dengan cara penyuluhan, sekaligus menerapkan alat tetas telur itik dengan kontrol suhu dan kelembaban (Thermostat-Hygrostat)  dengan sensor suhu dan kelembaban  DHT11. Hasil dari kegiatan jumlah telur yang bisa ditetaskan mencapai 80% (160 DOD), yang tidak bisa  menetas 20 % (40 butir). Walaupun demikian penggunaan alat penetuas telur bisa mengatasi masalah, kurangnya ketersediaan DOD dan meningkatkan harga jual telur itik.
Evaluation of the Impact Strength and Morphology Properties of Musa Acuminata Fiber Composite/CaCo3 Powder Nasmi Herlina Sari; Salman; Suteja; Yusuf Akhyar Sutaryono; Joni Iskandar
Journal of Fibers and Polymer Composites Vol. 2 No. 1 (2023): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v2i1.63

Abstract

Banana stem (Musa Acuminata, MA) fiber is a free agricultural waste obtained after harvesting the fruit. When compared to synthetic fibers, banana fiber has significant weaknesses in composite production, such as low interfacial bond strength between the fiber and the matrix. The purpose of this research is to improve the impact strength of banana stem fiber composites by adding CaCO3 powder. The hot press technique is used to create composites. In the production of polyester composites, woven MA and CaCO3 stem fibers are prepared. An impact testing machine and a scanning electron microscope were used to investigate the effect on morphological properties and impact strength. The study's findings revealed that a polyester composite containing 10% banana stem fiber and 25% CaCO3 had the highest impact strength of 45.27 KJ/m2, which was associated with strong adhesion between the CaCO3-fiber and the polyester matrix. Fiber pullout, matrix cracking, and fiber debonding were all observed in the composite fracture morphology. The resulting composite properties could be used to replace palm fiber/fiber glass composites.
The Mechanical Properties of a Water Hyacinth/Rice Husk Powders Composite for Tissue Engineering Applications Nasmi Herlina Sari; Suteja Suteja; Yusuf Akhyar Sutaryono
Journal of Fibers and Polymer Composites Vol. 2 No. 2 (2023): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v2i2.123

Abstract

In this study, composites made from water hyacinth powder (WPH) and rice husk powder (RH) were created using the hot press method, and the composites were characterized to determine their suitability for biomedical applications such as tissue engineering. The mixing ratio of WPH/RH was investigated. Fourier transmission infrared spectroscopy (FTIR) revealed the presence of chemical bonds in the composites under investigation. Tensile tests were used to investigate the mechanical properties of the composite, which revealed that adding water WPH to the rice husk composite reduced the composite's strength. A composite with a 5% WPH content had the highest tensile strength of 32.72 MPa. Meanwhile, the mechanical strength of the other composites studied ranged from 25,537 MPa to 29.43 MPa. However, the elastic modulus of the composite increased with the addition of WPH. The SEM image shows that the powder distribution is less even, the interface between WPH-RH and polyester is quite tight, and the composite contains a number of voids. Characterization of the developed composite demonstrates that the WPH/RH addition ratio can be adjusted to achieve the desired composite properties for tissue engineering and cartilage regeneration applications.
Utilization of Pumpkin seed waste extract as an inhibitor in reducing the corrosion rate on metals Syarif Hidayatullah; Nasmi Herlina Sari; Ahmad Akromul Huda; Maharsa Pradityatama; Sinarep Sinarep; suteja suteja
Protech Biosystems Journal Vol 5, No 1 (2025): Protech Biosystem Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v5i1.32116

Abstract

Our research focuses on enhancing the potential of pumpkin seed waste extract as a sustainable corrosion inhibitor for metal (Fe) in 1 M HCl solution. Phytochemical screening and antioxidant activity were identified. Various investigative methodologies including experimental techniques such as Potentiodynamic Polarization (PDP) were used to evaluate the effectiveness of these pumpkin seed waste extract inhibitors in inhibiting corrosion. Electrochemical results showed that the effectiveness of the inhibitor was concentration dependent here reaching 83.11% at 3000 g/L pumpkin seed waste extract inhibitor. The PDP showed that the mixed inhibition control effectively retarded the corrosion of the metal. Furthermore, the adsorption behavior of the pumpkin seed waste extract inhibitor onto the metal follows the Langmuir isotherm model with physisorption properties. The adsorption mechanism of the inhibitor on the metal surface successfully formed a protective film on the metal surface thereby reducing the corrosion rate.  
Characteristics Of Physical, Mechanical And Chemical Properties Of Cissus Sicyoides And Its Composites M. irawan Apriandi; Nasmi Herlina Sari; Sinarep Sinarep
Protech Biosystems Journal Vol 5, No 1 (2025): Protech Biosystem Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v5i1.32908

Abstract

This study aims to examine the characteristics of Cissus Sicyoides natural fibers extracted by two different methods, namely mechanical and boiling methods, and their application as reinforcing materials for epoxy resin-based composites. The characteristic of fibers was tested through physical and chemical properties, and fiber morphology, including tensile tests, FTIR, SEM and chemical composition. The results showed that the mechanical method produced fibers with higher tensile strength (431.41 MPa) and rougher surface structures, which support better mechanical bonding in the composite matrix. Meanwhile, the boiling method produced fibers with higher cellulose content (23.05%) and a cleaner and tidier surface. FTIR tests confirmed the presence of hydroxyl and carbonyl groups in both samples, while SEM results showed significant presence in the surface morphology and fiber cross-section. Composites made with fibers from the mechanical method had higher tensile strength (28.97 MPa) compared to composites from the boiling method (9.42 MPa). Overall, Cissus Sicyoides fiber has the potential as a composite reinforcing material with a mechanical extraction method that is superior in producing better mechanical performance. The findings of this study add to the use of local natural fibers as an alternative, ecologically friendly composite reinforcement for lightweight buildings.
Characteristics of bio-composites from Polyvinyl alcohol reinforced micro-cellulose fibers of Paederia foetida Nasmi Herlina Sari; Muhammad Nabil Fadhlurrohman Rivlan; Suteja Suteja; Syarif Hidayatullah; I Putu Lokantara
Journal of Fibers and Polymer Composites Vol. 5 No. 1 (2026): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v5i1.576

Abstract

The use of renewable natural fibers as reinforcements in biodegradable matrices has been boosted by the development of sustainable polymer materials. The purpose of this work is to examine the properties of bio-composites made of polyvinyl alcohol (PVA) reinforced with micro-cellulose fibers that are isolated from the underused plant resource Paederia foetida (MSPf). After retting and alkaline and bleaching treatments, micro-cellulose was obtained and added to PVA at a weight percentage of 5% utilizing the solution casting technique. The biocomposites' mechanical, thermal, water absorption, and morphological characteristics were assessed. When MSPf was added, PVA's tensile strength rose from 20.69 MPa to 23.10 MPa, and its elastic modulus increased dramatically, suggesting better stiffness and efficient stress transfer. The improvement is ascribed to the hydroxyl groups of PVA and cellulose having strong hydrogen bonds and good interfacial adhesion. Due to limited polymer chain mobility, elongation at break decreased, but the composite showed better structural integrity. After 36 h, water absorption attained an equilibrium value of 1.461%, indicating the creation of a compact fiber-matrix network. When compared to clean PVA, thermogravimetric analysis showed better thermal stability, and SEM verified strong interfacial compatibility and homogeneous dispersion. These results show that micro-cellulose derived from Paederia foetida is a viable sustainable reinforcement that can improve the performance of bio-composites based on PVA.
The Next Generation of Sustainable Composites: From High Performance to High Impact Nasmi Herlina Sari; Muhammad Nabil Fadhlurrohman Rivlan; Edi Syafri
Journal of Fibers and Polymer Composites Vol. 5 No. 2 (2026): Journal of Fibers and Polymer Composites
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jfpc.v5i2.710

Abstract

Editor's Corner
Co-Authors Achmad Zainuri Ahmad Akromul Huda Edi Syafri I Made Suartika I Putu Lokantara Joni Iskandar M. irawan Apriandi Maharsa Pradityatama Muhammad Nabil Fadhlurrohman Rivlan Nur Kaliwantoro Putu Lokantara Salman Sinarep Sinarep Sinarep Sinarep Sujita Sujita Sujita Sujita Suteja Suteja Suteja Syarif Hidayatullah Topan Gusti Wibowo Yusuf Akhyar Sutaryono