scholarly journals PENGARUH PENGGUNAAN LARUTAN ALKALI DALAM KEKUATAN BENTUR DAN UJI DEGRADASI PADA KOMPOSIT TERMOPLASTIK BERPENGISI SERBUK SERABUT KELAPA

2012 ◽  
Vol 1 (2) ◽  
pp. 1-6
Author(s):  
Harry Abrido S ◽  
Johannes Leonard S ◽  
Maulida
Keyword(s):  
Impact Strength ◽  
Natural Fiber ◽  
Test Results ◽  
Hot Press ◽  
Coconut Fiber ◽  
The Matrix ◽  
Polypropylene Matrix ◽  
Degradation Test ◽  
The Many ◽  
Better Than

Composite is a combination of two different materials to obtain a material with physical properties and mechanical properties are better than any of its constituent parts. One of the many types of produced composite is composite with powdered natural fiber. This study uses the former polypropylene matrix derived from aqua cup and powdered coconut fiber as filler treated with Sodium Hydroxide (NaOH). The ratio of the matrix and the filler is 85:15. This ratio is the optimum value obtained by the composite tensile strength with some ratios are 100:0, 95:5, 90:10 and 85:15. The purpose of this study was to determine the effect of the use of an alkaline solution of the resulting composite properties such as impact strength, as well as the effect of degradation test on composite material former polypropylene with powdered coconut fiber as filler. Variation of composite degradation test were 10, 20 and 30 days, and immersion powder for 1 and 2 days. The method used in the manufacture of composites is the method of extrusion. The matrix form of the former polypropylene mixed with coconut fiber powder that has been soaked with NaOH, then mixed in a container, then put into the extruder operating temperature 1750C, printed using a hot press at a temperature of 1750C, and cut into pieces appropriate testing. The results showed that the optimum processing occurs with NaOH for 2 days. The test results showed degradation soaking for 2 days has impact strength values ​​higher than 1 day is equal to 0.086 J / mm at 10 days, 0.048 J / mm at 20 days and 0.052 J / mm at 30 days.

scholarly journals PENGARUH PENGGUNAAN LARUTAN ALKALI PADA KEKUATAN TARIK DAN UJI DEGRADASI KOMPOSIT POLIPROPILENA BEKAS BERPENGISI SERBUK SERABUT KELAPA

2013 ◽  
Vol 2 (1) ◽  
pp. 14-20
Author(s):  
Fitriah Sari Nst ◽  
Harry Abrido S ◽  
Maulida
Keyword(s):  
Tensile Strength ◽  
Natural Fiber ◽  
Test Results ◽  
Hot Press ◽  
Coconut Fiber ◽  
The Matrix ◽  
Polypropylene Matrix ◽  
Degradation Test ◽  
The Many ◽  
Better Than

Composite is a combination of two different materials to obtain a material with physical properties and mechanical properties are better than any of its constituent parts. One of the many types of produced composite is composite with powdered natural fiber. This study uses the former polypropylene matrix derived from former cup bottle cup and powdered coconut fiber as filler treated with Sodium Hydroxide (NaOH). The ratio of the matrix and the filler is 85:15. This ratio is the optimum value obtained by the composite tensile strength with some ratios are 100:0, 95:5, 90:10 and 85:15. The purpose of this study was to determine the effect of the use of an alkaline solution of the resulting composite properties such as tensile strength, as well as the effect of degradation test on composite material former polypropylene with powdered coconut fiber as filler. Variation of composite degradation test were 10, 20 and 30 days, and immersion powder for 1 and 2 days. The method used in the manufacture of composites is the method of extrusion. The matrix form of the former polypropylene mixed with coconut fiber powder that has been soaked with NaOH, then mixed in a container, then put into the extruder operating temperature 1750C, printed using a hot press at a temperature of 1750C, and cut into pieces appropriate testing. The results showed that the optimum processing occurs with NaOH for 2 days. The test results showed degradation soaking for 2 days has tensile strength values ​​higher than 1 day is equal to 29,023 MPa at 0 day, 28,835 MPa at 10 days, 26,762 MPa at 20 days and 25,361 MPa at 30 days.

scholarly journals PENGARUH PENGGUNAAN LARUTAN ALKALI DALAM UJI FOURIER TRANSFORM INFRARED PADA KOMPOSIT TERMOPLASTIK BERPENGISI SERBUK SERABUT KELAPA

2013 ◽  
Vol 2 (2) ◽  
pp. 32-36
Author(s):  
Johannes Leonard S ◽  
Harry Abrido S ◽  
Maulida
Keyword(s):  
Fourier Transform ◽  
Natural Fiber ◽  
Physical And Mechanical Properties ◽  
Fourier Transform Infrared ◽  
Hot Press ◽  
Coconut Fiber ◽  
The Matrix ◽  
Polypropylene Matrix ◽  
Lignin Level ◽  
Better Than

Composite is a combination of two different materials to obtain a material with physical and mechanical properties are better than any of its constituent parts. One of the composite types which is much produced is composite with powdered natural fiber filler. This research uses the used polypropylene matrix and powdered coconut fiber as filler treated with Sodium Hydroxide (NaOH). The ratio of the matrix and the filler is 85:15. This ratio is the optimum value obtained by the composite tensile strength with ratio 100:0, 95:5, 90:10 and 85:15. The purpose of this study was to determine the effect of the use of an alkaline solution of the resulting composite properties especially towards lignin level, with Fourier Transform Infrared (FTIR) test on composite material used polypropylene with powdered coconut fiber as filler. The method used in the manufacture of composites is the method of extrusion. The matrix form of the used polypropylene mixed with coconut fiber powder that has been soaked with NaOH, then mixed in a container, then put into the extruder operating temperature 1750C, printed using a hot press at a temperature of 1750C, and cut into pieces appropriate testing. The results showed that the optimum processing occurs with NaOH for 2 days. The FTIR test result, showed that –OH cluster switch occured, be seen from the shifting of absortion band from 3417.04 cm-1 to 3476.84 cm-1 for the powdered coconut fiber and the shifting of absortion band from 3343.75 cm-1 to 3192.33 cm-1 for the composite, which is the –OH cluster of the lignin.

scholarly journals Impact Strength and Flexural Properties Enhancement of Methacrylate Silane Treated Oil Palm Mesocarp Fiber Reinforced Biodegradable Hybrid Composites

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Chern Chiet Eng ◽  
Nor Azowa Ibrahim ◽  
Norhazlin Zainuddin ◽  
Hidayah Ariffin ◽  
Wan Md. Zin Wan Yunus
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Flexural Properties ◽  
Melt Blending ◽  
Fiber Loading ◽  
Hydrophobic Polymer ◽  
The Matrix ◽  
Water Absorption Test

Natural fiber as reinforcement filler in polymer composites is an attractive approach due to being fully biodegradable and cheap. However, incompatibility between hydrophilic natural fiber and hydrophobic polymer matrix restricts the application. The current studies focus on the effects of incorporation of silane treated OPMF into polylactic acid (PLA)/polycaprolactone (PCL)/nanoclay/OPMF hybrid composites. The composites were prepared by melt blending technique and characterize the composites with Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). FTIR spectra indicated that peak shifting occurs when silane treated OPMF was incorporated into hybrid composites. Based on mechanical properties results, incorporation of silane treated OPMF enhances the mechanical properties of unmodified OPMF hybrid composites with the enhancement of flexural and impact strength being 17.60% and 48.43%, respectively, at 10% fiber loading. TGA thermogram shows that incorporation of silane treated OPMF did not show increment in thermal properties of hybrid composites. SEM micrographs revealed that silane treated OPMF hybrid composites show good fiber/matrix adhesion as fiber is still embedded in the matrix and no cavity is present on the surface. Water absorption test shows that addition of less hydrophilic silane treated OPMF successfully reduces the water uptake of hybrid composites.

Study on Effect of Surface Treating Method on Mechanical Behavior of Three Plant Fiber Reinforced Polypropylene Composites

2017 ◽  
Vol 25 (1) ◽  
pp. 93-102 ◽  
Author(s):  
L. Ma ◽  
L.J. He ◽  
S.Y. Shao
Keyword(s):  
Tensile Test ◽  
Coupling Agents ◽  
Test Results ◽  
Interface Bonding ◽  
Silane Coupling Agents ◽  
Polypropylene Composites ◽  
The Matrix ◽  
Composite Samples ◽  
Better Than ◽  
Effect Of Surface

The surface modification effects of triethoxysilane (KH-550), methacryloxy propyl tri-methoxy silane (KH-570), and maleic anhydride grafted polypropylene (MAPP) on sawdust (SD), wheat straw (WS) and cellulose (CE) were studied by a tensile test, as well as surface morphology observation on reinforced composites. The results revealed that MAPP was the most effective coupling agent, and SD composites performed better than WS and CE. The tensile test results indicated that the optimum conditions for coupling agents were 1 wt.% for silane coupling agents and 5 wt.% for MAPP. SEM studies confirmed the tensile test results, proving that adhesion was improved with the employment of MAPP. MAPP-treated composite samples presented a prevailed fiber broken pattern which resulted in strong fiber-matrix interface bonding, whereas silane treatments did not provide an obvious enhancement in adhesion between the fiber and the matrix.

Effects of Fiber Layer on Failure Strength Properties of Adhesive - Joined Natural Fiber Reinforced Composites

2007 ◽  
Vol 353-358 ◽  
pp. 1965-1969
Author(s):  
Ho Chel Yoon ◽  
Jae Kyoo Lim
Keyword(s):  
Natural Fiber ◽  
Strength Properties ◽  
Good Effect ◽  
Failure Strength ◽  
Test Results ◽  
Fiber Layer ◽  
Element Analysis ◽  
The Matrix ◽  
Peel Tests ◽  
Properties Of Composites

This research was concerned with study of fracture strength of adhesive-lap-joined composites. The tensile and peel tests were carried out with specimens manufactured hybrid stacked composites, because the orientation of fiber and the interfacial fracture between the matrix and the reinforcement had influence on failure strength of composites. Bamboo natural fiber layer was located between polyester layers. The objective of this study was to evaluate the effect of fiber orientation on failure strength properties of composites. The test results were presented by load-displacement graph and finite element analysis. As a result, the load-directional orientation and the thinner thickness of bamboo natural fiber layer have a good effect on peel and tensile-shear strength and failure shape of adhesive-joined hybrid stacked composite.

scholarly journals Biokomposit Limbah Plastik Polypropylene Berpenguat Serat Lidah Mertua: Proses Ekstraksi dan Kekuatan Mekanis

Jurnal METTEK ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 128
Author(s):  
I Putu Lokantara ◽  
Ngakan Putu Gede Suardana
Keyword(s):  
Tensile Strength ◽  
Tensile Testing ◽  
Bending Strength ◽  
Volume Fraction ◽  
Bending Test ◽  
Test Results ◽  
Hot Press ◽  
Soaking Time ◽  
Recycled Polypropylene ◽  
The Matrix

Tujuan dari penelitian ini adalah untuk menentukan kekuatan tarik dan kekuatan bending biokomposit limbah plastik polypropylene berpenguat serat lidah mertua. Lidah mertua yang digunakan adalah lidah mertua yang pinggirannya daunnya kuning dengan usia yang seragam. Daun lidah mertua direndam dengan metode water retting selama 7 hari dan proses ekstraksi serat dilakukan secara manual. Polypropylene daur ulang yang digunakan berasal dari limbah plastik minuman gelas. Perlakuan kimia serat lidah mertua dengan konsentrasi 5% NaOH dan waktu perendaman 2 jam. Komposit dicetak dengan menggunakan press panas dengan suhu 200oC dan waktu penahanan 2 jam. Komposit dilakukan pengujian tarik dengan menggunakan ASTM D-570 dan uji bending dengan ASTM 790-03. Hasil uji tarik menunjukkan bahwa kekuatan tarik tertinggi pada fraksi volume 35% sebesar 71,606 MPa. Kekuatan tarik meningkat sebesar 28,9% dari fraksi volume 25% ke fraksi volume 35%.  Hasil uji bending menunjukkan bahwa kekuatan bending tertinggi pada fraksi volume 35% sebesar 74,55 MPa. Kekuatan bending meningkat sebesar 22,9% dari fraksi volume 25% ke fraksi volume 35%. Dengan pengamatan foto mikro SEM, ikatan adhesi antara serat dan matrik terjadi dengan baik pada fraksi volume 35%.      The purpose of this study was to determine the tensile strength and bending strength of lidah mertua fiber reinforced polypropylene. Lidah mertua is used whose leaf margins are yellow with a uniform age. Lidah mertua leaves were soaked by water retting method for 7 days. Fiber is extracted manually by hand. Recycled polypropylene used comes from glass beverage plastic waste. The chemical treatment of lidah mertua fibers 5% NaOH and a soaking time of 2 hours. Composites are molded using a hot press with a temperature of 200oC and a holding time of 2 hours. Composite tensile testing was carried out using ASTM D-570 and bending test with ASTM 790-03. Tensile test results showed that the highest tensile strength at 35% volume fraction was 71,606 MPa. Tensile strength increased by 28.9% from 25% volume fraction to 35% volume fraction. Bending test results showed that the highest bending strength at 35% volume fraction was 74.55 MPa. The bending strength increased by 22.9% from the 25% volume fraction to the 35% volume fraction. By observing SEM micro photographs, the bond between the fiber and the matrix occurs well at 35% volume fraction

scholarly journals PENGARUH ORIENTASI SERAT PADA KOMPOSIT KAIN POLYPROPYLINE

JTAM ROTARY ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Muhammad Ariyansah ◽  
Achmad Kusairi Samlawi
Keyword(s):  
Tensile Strength ◽  
Impact Strength ◽  
Fiber Orientation ◽  
Unsaturated Polyester ◽  
Impact Testing ◽  
Test Results ◽  
Fabric Composite ◽  
The Matrix ◽  
Materials Used ◽  
The Impact

The purpose of this research is to know the effect of fiber orientation variation on tensile strength and impact strength on polypropyline fabric composite. In this study the reinforcing materials used were polypropyline fabrics with variations of fiber orientation 0º:-45º:0 ; 0:45º:0º ; and 0º:90:0º using unsaturated polyester resin 108 as the matrix. Preparation by hand lay up, impact testing conducted with reference standard ASTM D5942-96 and tensile testing conducted with reference ASTM D638-03 standard. The test results showed that the variation with 0°:90°:0° orientation gave the best effect to the impact test and tensile test with the impact price of 128,66 Joule / cm² and tensile strength of 98,49 MPa. Keywords: Polypropyline, Composite, Impact Strength, Tensile Strength

Influence of stacking sequence and orientation of the fabric on mechanical properties of twill Kenaf/Kevlar reinforced unsaturated polyester hybrid composites

2021 ◽  
pp. 152808372110199
Author(s):  
HT Sreenivas ◽  
N Krishnamurthy ◽  
MS Murali ◽  
GR Arpitha
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Flexural Strength ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Synthetic Fiber ◽  
Stacking Sequence ◽  
The Matrix

The current study investigates on development of hybrid composite with Kenaf/Kevlar as reinforcement and unsaturated Polyester as the matrix considering stacking sequence, the orientation of fabric and twill 2x2 weave of the Kenaf fabric in particular. Five laminates (L1, L2, L3, L4, and L5) were developed by stacking the lamina's one over the other with the matrix and then cured in an autoclave. The laminates were subjected to experimental investigation to evaluate mechanical properties such as tensile strength, flexural strength, hardness, and impact strength. Results indicate that L5 shows good flexural strength and modulus, high hardness, and good impact strength, whereas L4 indicates the best tensile strength and tensile modulus. To summarize, the hybridization resulted in an average of 30% increased mechanical property for Laminate L5. The effect of stacking in L5 has a significant impact on the property of the composite. The results of the study were mainly focused on minimizing the use of synthetic fiber and replacing it with natural fiber. SEM analysis was performed on fractured surfaces of specimens which revealed that the failure of the laminated composite is due to poor interfacial bonding among fiber and matrix. Overall, the composite obtained from the combination of Kenaf and Kevlar fabrics had the best balance of properties finds appropriate application for car bumpers, fenders, boat hull, turbine blade etc.

scholarly journals Analisis Kinerja Routing Protokol RIPng Dengan OSPFv3 Pada Jaringan IPV6 Tunneling

Petir ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 56-36
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Data Packet ◽  
Test Results ◽  
Patch Selection ◽  
Test Bed ◽  
Literature Study ◽  
Overall Performance ◽  
The Many ◽  
Selection Of ◽  
Better Than

The main objective of the development ipv6 is to meet need of ip addresses for a long term and improving the existing weaknesses in ipv4. But the transitional of the protokol version 4 to protokol version 6 cant be done by casually because due to the many infrastructure of the ipv4 network have been installed . For it is needed method to integrate ipv4 with ipv6 and one of the method is to use tunneling. The presence of tunneling network also needed routing protokol that support ipv6 protokol such as ripng and ospfv3 in ipv6 tunneling network. This paper is arranged to determine the performance of ripng dan ospfv3 routing protokols by analyzing the patch selection of data transmission, routing update analysis, speed time convergent analysis, analyzing by sending tcp data packet and sniffing analysis of data packet in tunneling network. The method used is literature study, computer simulation, and implementation on the test-bed. Data analysis showed that performance of ospfv3 is better than ripng because the speed of convergent time is faster. Ospfv3 need an average time as musch as 19 seconds but ripng need 178 seconds.on the test results of network throughput for tcp windows size that have 2, 4, 5, 6 kbyte capacity it take an average 121, 58 mbit/sec for ospfv3 and 117, 44 mbit/sec for ripng. For the overall performance of ripng and ospfv3 are not much different from its predecessor routing protokol in ipv4 network, it just for ripng and ospfv3 have support for 128-bit ipv6 addressing.

Implementasi Voip Server Berbasis IPV6 Dengan Raspberry PI

2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo
Keyword(s):  
Internet Protocol ◽  
Wireless Transmission ◽  
Raspberry Pi ◽  
Test Results ◽  
Average Delay ◽  
Ipv6 Network ◽  
Ip Network ◽  
Selection Of ◽  
Better Than

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.

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