scholarly journals Characterization of Bark-Midrib Fibers using Chemical Treatment Variations as Reinforcement in Bark-Midrib Fiber Composites

2019 ◽  
Vol 3 (2) ◽  
pp. 36-45
Author(s):  
Oliever
Keyword(s):  
Tensile Test ◽  
Chemical Treatment ◽  
Immersion Time ◽  
Impact Test ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Sem Images ◽  
Cellulose Component ◽  
Bleaching Treatment

Bark midrib are not fully utilized. Utilize the characterization of the fiber and process it into polymer composites with natural fiber reinforcement. The study was conducted using a variety of chemical treatments in the form of bark midribs without treatment, delignification treatment that is immersion using NaOH media concentration of 1%, 5%, 10% with 3 hours immersion time and bleaching treatment using H2O2 media 2% concentration with immersion time 30, 60 and 90 minutes. In obtaining suitable properties, tensile tests, impact tests, Scanning Electron Microscopy (SEM) images, and Fourier-Transform Infra-Red (FTIR) tests are performed. Optimal delignification treatment at 5% NaOH concentration with a tensile test value of 25.47 MPa (increasing 76.86%) and an impact test value of 11.95 kJ/m2 (increasing 11.45%). The optimal bleaching treatment at 90 minutes immersion with a tensile test value of 35.09 MPa (increased 36.36%) and impact test value of 13.77 kJ/m2 (increased 15.22%). The results of SEM images show that the bark midrib fiber composite without treatment has a lousy interface, delignification treatment with a reasonable good interface, and bleaching treatment with an excellent interface. FTIR test results showed that the bark midrib fiber composite without treatment had a cellulose component but hemicellulose and lignin levels still dominated. Based on the results of the study, bark midrib fiber with delignification chemical treatment using 5% NaOH for 3 hours followed by bleaching treatment using 2% H2O2 for 90 minutes is the treatment with the best results and then applied to a natural fiber composite product.

scholarly journals Application of Fiber Made from Bark of Salak (Salacca Zalacca) Tree as Reinforcement in Polymer Matrix Composites

2021 ◽  
Vol 2 (2) ◽  
pp. 153
Author(s):  
Andromeda Dwi Laksono ◽  
Gusti Umindya Tajalla ◽  
Oliever Andrea Parusha
Keyword(s):  
Polymer Matrix ◽  
Immersion Time ◽  
Polymer Matrix Composites ◽  
Fiber Composite ◽  
Tensile Tests ◽  
Matrix Composites ◽  
Sem Image ◽  
Abundant Supply ◽  
Cellulose Component ◽  
Bleaching Treatment

<p class="02abstracttext">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 H<sub>2</sub>O<sub>2</sub> 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 optimal delignification 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/m<sup>2</sup>, 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. The delignification 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% H<sub>2</sub>O<sub>2</sub> for 90 minutes was the best treatment.</p>

Fabrication and Characterization of Natural Fiber Composite Material

2018 ◽  
Author(s):  
Rifatul Mursalin ◽  
Md. Wahedul Islam ◽  
Md. Moniruzzaman ◽  
Md. Ferdous Zaman ◽  
Muhammad Azmain Abdullah
Keyword(s):  
Composite Material ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Fiber Composite Material ◽  
Fabrication And Characterization ◽  
Natural Fiber Composite

Cotton-Epoxy Composites: Development and Mechanical Characterization

2011 ◽  
Vol 471-472 ◽  
pp. 291-296 ◽  
Author(s):  
Piyush P. Gohil ◽  
A.A. Shaikh
Keyword(s):  
Natural Fiber ◽  
Volume Fraction ◽  
Fiber Composite ◽  
Natural Fibers ◽  
High Strength ◽  
Data Availability ◽  
Sem Images ◽  
Feasible Range ◽  
Set Up ◽  
Natural Fiber Composite

Composites are becoming essential part of today’s material because they offer advantages such as low weight, corrosion resistance, high fatigue strength; faster assembly etc. composites are generating curiosity and interest all over the worlds. The attempts can be found in literature for composite materials high strength fiber and also natural fiber like jute, flax and sisal natural fibers provides data but there is need of experimental data availability for unidirectional natural fiber composite with seldom natural fiber like cotton, palm leaf etc., it can provide a feasible range of alternative materials to suitable conventional material. It was decided to carry out the systematic experimental study for the effect of volume fraction of reinforcement on longitudinal strength as well as Modulus of Elasticity (MOE) using developed mould-punch set up and testing aids. The testing is carried out as per ASTM D3039/3039M-08. The comparative assessment of obtained experimental results with literature is also carried out, which forms an important constituent of present work. It is also observed through SEM images and theoretical investigations that interface/interphase plays and important role in natural fiber composite.

scholarly journals SIFAT MEKANIS SERAT ENCENG GONDOK SEBAGAI MATERIAL KOMPOSIT SERAT ALAM YANG BIODEGRADABLE

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Sri Hastuti ◽  
Catur Pramono ◽  
Yafi Akhmad
Keyword(s):  
Immersion Time ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Natural Fibers ◽  
Ethanol Solution ◽  
Machining Process ◽  
Single Fiber ◽  
Glass Fiber Composite ◽  
Treatment Type ◽  
Eichornia Crassipes

The Eichornia crassipes fiber have potentially as a composite reinforcing material. The advantage of composites with natural fibers like to light weight, corrosion resistance, water resistance, attractive performance, and without machining process. The purpose of using natural fiber as an alternative material to replace glass fiber composite material with Eichornia crassipes fibers are friendly and cheap. The research material used Eichornia crassipes fiber, NaOH, Etanol, and H2O. Processing of Eichornia crassipes fiber is washing with water, natural drying ± 10 days in eviromental, fiber taking with steel brush. Dry fibre were subjected to 10%, 20%, 30% NaOH and ethanol solution with variations of immersion time of 2, 4, 6 hours, neutralization with H20, and drying at room temperature. The Single fiber tensile test specimens were made with variations of treatment type in NaOH and Ethanol solution (10%, 20%, 30%), immersion time of 2, 4, and 6 hours. Single fiber test specimens refer to standard ASTM D 3379. Optimum tensile strength test results on NaOH treatment 20% variation of immersion time 4 hours: 28.402 N / mm2 and on ethanol treatment 20% variation of immersion time 2 hours: 48.197 N / mm2.

Damage resistance evaluation of E-glass and hybrid hemp-banana natural fiber composite helmet using drop weight impact test

2021 ◽  
Author(s):  
Y.V. Ravi ◽  
N. Kapilan ◽  
Sangamesh Rajole ◽  
Y.S. Balaji ◽  
N. Varun Kumar Reddy ◽  
...  
Keyword(s):  
Impact Test ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Damage Resistance ◽  
Resistance Evaluation ◽  
Drop Weight ◽  
Weight Impact ◽  
Natural Fiber Composite

scholarly journals Fabrication and Characterization of Electrospun Wool Keratin/Poly(vinyl alcohol) Blend Nanofibers

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Shuai Li ◽  
Xu-Hong Yang
Keyword(s):  
Tensile Test ◽  
Vinyl Alcohol ◽  
Electrospun Nanofibers ◽  
Poly Vinyl Alcohol ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Electrospinning Method ◽  
Wool Keratin

Wool keratin/poly(vinyl alcohol) (PVA) blend nanofibers were fabricated using the electrospinning method in formic acid solutions with different weight ratios of keratin to PVA. The resultant blend nanofibers were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and tensile test. SEM images showed that the diameter of the blend nanofibers was affected by the content of keratin in blend solution. FTIR and XRD analyses data demonstrated that there were good interactions between keratin and PVA in the blended nanofibers caused by possibly hydrogen bonds. The TGA study revealed that the thermal stability of the blend nanofibers was between those of keratin and PVA. Tensile test indicated that the addition of PVA was able to improve the mechanical properties of the electrospun nanofibers.

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