scholarly journals ANALISA KEKUATAN IMPACT DAN MODEL PATAHAN KOMPOSIT POLYESTER-SERAT ECENG GONDOK DI TINJAU DARI TIPE PENYUSUNAN SERAT

2018 ◽  
Vol 6 (1) ◽  
pp. 58
Author(s):  
Dodik Aprilia ◽  
I Nyoman Pasek Nugraha ◽  
Kadek Rihendra Dantes
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Experimental Method ◽  
Fiber Orientation ◽  
Water Hyacinth ◽  
Composite Fiber ◽  
Continuous Fiber ◽  
Polyester Composite ◽  
Independent Variable ◽  
The Impact

Penelitian ini dilakukan untuk mengetahui orientasi serat yang terbaik yang dapat digunakan sebagai komposit matrik polyester berpenguat serat eceng gondok. Sifat mekanik yang dimaksud adalah kekuatan impact dan foto patahan mikro permukaan dan standar ukuran specimen sesuai ASTM D6110-4. Penelitian ini merupakan penelitian metode eksperimen dengan variabel terikat kekuatan impak, dan variabel bebas yaitu orientasi serat continuous, discontinuous, dan hybride.selanjutnya akan dianalisis menggunakan anava Dari penelitian yang dilakukan diketahui bahwa nilai impact tertinggi ada pada orientasi serat hybride yaitu 2.441,25 J/m3 , sedangkan kekuatan impact terendah pada orientasi serat continous yaitu 1.085,002 J/m3. Berdasarkan dari uji Scheffe yang sudah didapat, bahwa terdapat perbedaan kekuatan impak komposit polyester berpenguat serat alam eceng gondok antara orientasi serat continuous dengan discontinuous dengan nilai 12,86 orientasi serat continuous dengan hybride dengan nilai 24,03 dan orientasi serat discontinuous dengan hybride dengan nilai 11,02 .Kata Kunci : Kata kunci :orientasi serat, impak, model patahan.komposit,polyester This research was conducted to find out the best fiber orientation that can be used as a fiber-reinforced polyester composite of water hyacinth. The mechanical properties in question are the impact strength and photo surface micro-fracture and standard sized specimens according to ASTM D6110-04. This research is a research of experimental method with dependent variable of impact strength, and independent variable that is continuous fiber orientation, discontinuous, and hybride. Then will be analyzed using anava From the research, it is known that the highest impact is on the orientation of the fiber hybride is 2,441,25 J / m3, while the lowest impact strength on continuous fiber orientation is 1,085,002 J / m3.Based on the further test Scheffe has been obtained, that there is a difference of impact strength of polyester composite fiber-made natural hyacinth between continuous fiber orientation with discontinuous with value 12,86 continuous fiber orientation with hybride with value 24,03 and orientation fiber discontinuous with hybride with value 11,0.keyword : Keywords: fiber orientation, impact, fracture model.composite, polyester

Mechanical Properties and Environmental Stress Cracking Resistance of Rubber Toughened Polyester/Clay Composite

2012 ◽  
Vol 576 ◽  
pp. 318-321 ◽  
Author(s):  
Bonnia Noor Najmi ◽  
Sahrim Haji Ahmad ◽  
Surip Siti Norasmah ◽  
S.S. Nurul ◽  
Noor Azlina Hassan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Natural Rubber ◽  
Stress Cracking ◽  
Rubber Toughened ◽  
Environmental Stress Cracking ◽  
Liquid Natural Rubber ◽  
Polyester Composite ◽  
Polyester Matrix ◽  
The Impact

Crosslinked polyester clay nanocomposites were prepared by dispersing originically modified montmorillonite in prepromoted polyester resin and subsequently crosslinked using methyl ethyl ketone peroxide catalyst at different clay concentration. Cure process and the mechanical properties of rubber toughened polyester clay composite have been studied. Rubber toughened thermoset polyester composite were prepared by adding 3 per hundred rubber (phr) of liquid natural rubber (LNR) was used in the mixing of producing this composite. Modification of polyester matrix was done due to the brittle problem of polyester composite. Addition of LNR will increase the toughness of composite and produce ductile polyester. Two types of composites were produced which is clay-lnr polyester composite and clay polyester composite. Addition of liquid natural rubber significantly increased the impact strength and flexural properties. Result shows that addition of 6% of clay-lnr composite give good properties on impact, strength and flexural. From the ESCR test, both composites showed good resistance to environmental.

scholarly journals PENGARUH ORIENTASI SERAT TERHADAP KEKUATAN IMPAK DAN MODEL PATAHAN KOMPOSIT POLYESTER BERPENGUAT SERAT KELAPA (COCOS VERIDIS)

2018 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Kadek Odi Supertama Yasa ◽  
I Nyoman Pasek Nugraha ◽  
Kadek Rihendra Dantes
Keyword(s):  
Impact Strength ◽  
Fiber Orientation ◽  
Continuous Fiber ◽  
Fiber Reinforced Composite ◽  
Pull Out ◽  
Reinforced Composite ◽  
Discontinuous Fiber ◽  
The Matrix ◽  
Independent Variable ◽  
T Distribution

Penelitian ini bertujuan untuk mengetahui pengaruh orientasi serat terhadap kekuatan impak dan model patahan komposit polyester berpenguat serat tapis kelapa untuk mengetahui perbandingan kekuatan impak dari orientasi serat continuous, discontinuous, dan woven. Penelitian ini merupakan penelitian metode eksperimen dengan variabel terikat kekuatan impak, dan variabel bebas yaitu orientasi serat continuous, discontinuous, dan woven. Berdasarkan hasil pengujian dan analisis data yang dilakukan didapat hasil dari perhitungan uji lanjut dengan uji t scheffe dengan nilai |t1-2|∶t = 13,65, |t1-3|∶t = 15,26, dan |t2-3|:t = 28,91. Nilai ini membuktikan bahwa hasil tersebut lebih besar dari distribusi t yang sebesar 2,228.Berdasarkan dari uji lanjut yang sudah didapat, dapat disimpulkan bahwa orientasi serat berpengaruh terhadap kekuatan impak. Orientasi serat woven lebih berpengaruh dari pada orientasi serat continuous dan discontinuous. Selanjutnya orientasi serat continuous lebih berpengaruh dari pada orientasi serat discontinuous. Secara mikroskopik pada patahan komposit, kondisi patahan menunjukkan mekanisme Fiber Pull Out, dimana pada ujung patahan terlihat ada pemutusan serat bahkan kondisi serat tercabut dari matriknya. Keadaan tersebut terjadi pada semua spesimen baik itu Continuous, Discontinuous, dan Woven. Hal tersebut dikarenakan matrik tidak mampu mengikat serat dengan baik. Pada orientasi serat Woven terlihat ada bagian serat yang tidak terkena matrik dengan sempurna (delaminasi). Delaminasi biasanya terjadi akibat terlalu rapat penyusunan serat. Kata Kunci : Kata kunci : orientasi serat, kekuatan impak, model patahan. The objective of this research is to know the effect of fiber orientation on impact strength and fractional model of polyester fiber-reinforced composite fi ber to find out the comparison of impact strength from continuous, discontinuous and woven fiber orientation. This research is a research of experimental method with dependent variable of impact strength, and independent variable that is continuous, discontinuous, and woven fiber orientation. Based on the results of testing and analysis of data obtained obtained the results of the calculation of further tests with t test scheffe with the value | t1-2 |: t = 13.65, | t1-3 |: t = 15.26, and | t2-3 | : T = 28.91. This value proves that the result is greater than the t distribution of 2,228.Based on the further test that has been obtained, it can be concluded that the fiber orientation effect on impact strength. The orientation of woven fibers is more influential than the continuous and discontinuous fiber orientation. Furthermore, continuous fiber orientation is more influential than discontinuous fiber orientation. Microscopically on the composite fracture, the fracture condition indicates the mechanism of Fiber Pull Out, where at the fracture ends there is a fiber termination and even the fiber condition is removed from the matrix. The condition occurs in all specimens be it Continuous, Discontinuous, and Woven. This is because the matrix is not able to bind fibers well. In the orientation of Woven fibers there is a part of the fiber that is not exposed to the matrix perfectly (delamination). Delamination usually occurs due to too tightly arranged fiber.keyword : Keywords: fiber orientation, impact strength, fracture model.

Piemarker Unsaturated Polyester Composite Reinforced with Piemarker Fiber

2011 ◽  
Vol 393-395 ◽  
pp. 1341-1345
Author(s):  
Chen Xi Zhang ◽  
Hai Bing Huang ◽  
Cheng Chen ◽  
Wei Hong Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Hot Pressing ◽  
Unsaturated Polyester ◽  
Mass Ratio ◽  
Pressing Temperature ◽  
Polyester Composite ◽  
The Impact ◽  
Pressing Technology

In this paper, instead of glass fiber, a bio-fiber (piemarker fiber) was used to reinforce unsaturated polyester (UP). UP resin was reinforced with piemarker fiber (PF) in a mold under hot pressing. The mechanical properties of the result composites were tested and hot pressing procedure was optimized. The optimum hot pressing technology was obtained. When hot pressing temperature was 90°C and mat was hot pressed for 1.5h. The mechanical properties of the composites indicated that: the optimum mass ratio of piemarker fiber to UP was 30:70, at which the flexural strength of the composite was 48.77MPa, the tensile strength was 29.082MPa, and the impact strength was 9.89KJ/m2.

A novel recycled polyethylene terephthalate/polyamide 11 (rPET/PA11) thermoplastic blend

2021 ◽  
pp. 147776062110010
Author(s):  
Zahid Iqbal Khan ◽  
Zurina Binti Mohamad ◽  
Abdul Razak Bin Rahmat ◽  
Unsia Habib ◽  
Nur Amira Sahirah Binti Abdullah
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Flexural Strength ◽  
Polyethylene Terephthalate ◽  
Practical Implication ◽  
Polyamide 11 ◽  
Recycled Polyethylene ◽  
Twin Screw ◽  
Electron Microscopy Analysis ◽  
The Impact

This work explores a novel blend of recycled polyethylene terephthalate/polyamide 11 (rPET/PA11). The blend of rPET/PA11 was introduced to enhance the mechanical properties of rPET at various ratios. The work’s main advantage was to utilize rPET in thermoplastic form for various applications. Three different ratios, i.e. 10, 20 and 30 wt.% of PA11 blend samples, were prepared using a twin-screw extruder and injection moulding machine. The mechanical properties were examined in terms of tensile, flexural and impact strength. The tensile strength of rPET was improved more than 50%, while the increase in tensile strain was observed 42.5% with the addition of 20 wt.% of PA11. The improved properties of the blend were also confirmed by the flexural strength of the blends. The flexural strength was increased from 27.9 MPa to 48 MPa with the addition of 30 wt.% PA11. The flexural strain of rPET was found to be 1.1%. However, with the addition of 10, 20 and 30 wt.% of PA11, the flexural strain was noticed as 1.7, 2.1, and 3.9% respectively. The impact strength of rPET/PA11 at 20 wt.% PA11 was upsurged from 110.53 to 147.12 J/m. Scanning electron microscopy analysis revealed a dispersed PA11 domain in a continuous rPET matrix morphology of the blends. This work practical implication would lead to utilization of rPET in automobile, packaging, and various industries.

The Effect of Yarn Linear Density on Mechanical Properties of Plain Woven Kenaf Reinforced Unsaturated Polyester Composite

2013 ◽  
Vol 465-466 ◽  
pp. 962-966 ◽  
Author(s):  
Mohd Pahmi bin Saiman ◽  
Mohd Saidin Bin Wahab ◽  
Mat Uzir Wahit
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Linear Density ◽  
Unsaturated Polyester ◽  
Composite Panel ◽  
Composite Yarn ◽  
Polyester Composite ◽  
The Impact ◽  
Woven Kenaf

To produce a good quality of dry fabric for reinforced material in a natural-based polymer composite, yarn linear density should be in consideration. A woven kenaf dry fabric with three different linear densities of 276tex, 413.4tex and 759tex were produced. The fabrics with different linear densities were been optimize with the assistance of WiseTex software. The optimized dry fabrics were infused with unsaturated polyester to produce composite panel using vacuum infusion process. The composites properties were tested on the tensile strength, flexural strength and the impact strength. The result shows that the mechanical properties of the composite increased when the yarn linear densities increased.

Effect of Filler Compositions on the Mechanical Properties of Bamboo Filled Polyester Composite

2014 ◽  
Vol 879 ◽  
pp. 90-95 ◽  
Author(s):  
Abdul Rahman Noor Leha ◽  
Nor Amalina Nordin
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Impact Test ◽  
Compression Molding ◽  
Engineering Applications ◽  
Maximum Value ◽  
Polyester Composite ◽  
Bamboo Powder ◽  
Flexural Tests ◽  
The Impact

Biocomposite from bamboo powder was fabricated by compression molding technique. The objective of this study was to investigate the mechanical properties of bamboo compounded with epoxy with different ratio. Tensile and flexural tests were done to characterize its mechanical properties. It was observed that the strength of bamboo-polyester was increased with increasing amount of bamboo powder. The tensile and flexural strength shows the highest value at 25 wt.% bamboo. However, the impact test shows the maximum value at 20 wt.% bamboo powder. These results exhibit the bamboo-polyester can be a good candidate to be used in many engineering applications

scholarly journals ANALISIS KEKUATAN TARIK DAN IMPAK MATERIAL KOMPOSIT POLIMER DALAM APLIKASI FIBERBOAT

2021 ◽  
Vol 4 ◽  
pp. 121-126
Author(s):  
Rezza Ruzuqi ◽  
Victor Danny Waas
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Composite Materials ◽  
Impact Strength ◽  
Metal Corrosion ◽  
Phase System ◽  
Low Density ◽  
Weight Percentage ◽  
Multi Phase ◽  
The Impact

Composite material is a material that has a multi-phase system composed of reinforcing materials and matrix materials. Causes the composite materials to have advantages in various ways such as low density, high mechanical properties, performance comparable to metal, corrosion resistance, and easy to fabricate. In the marine and fisheries industry, composite materials made from fiber reinforcement, especially fiberglass, have proven to be very special and popular in boat construction because they have the advantage of being chemically inert (both applied in general and marine environments), light, strong, easy to print, and price competitiveness. Thus in this study, tensile and impact methods were used to determine the mechanical properties of fiberglass polymer composite materials. Each test is carried out on variations in the amount of fiberglass laminate CSM 300, CSM 450 and WR 600 and variations in weight percentage 99.5% -0.5%, 99% -1%, 98.5% -1, 5%, 98% -2% and 97.5%-2.5% have been used. The results showed that the greater the number of laminates, the greater the impact strength, which was 413,712 MPa, and the more the percentage of hardener, the greater the impact strength, which was 416,487 MPa. The results showed that the more laminate the tensile strength increased, which was 87.054 MPa, and the more the percentage of hardener, the lower the tensile strength, which was 73.921 MPa.

scholarly journals Effect of Natural Fiber (NF) Mix on Mechanical Strength of NF Plastic Composites (NFPC)

2019 ◽  
Vol 9 (1) ◽  
pp. 5663-5667
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Natural Fiber ◽  
Fiber Type ◽  
Natural Fibers ◽  
Natural Fibre ◽  
Additional Advantage ◽  
Plastic Composites ◽  
Twin Screw ◽  
The Impact

Natural fibers from plants are gaining importance and may substitute wood in the production of wood plastic composites (WPC). To ensure continuity of fiber supply and sustainability of WPC industries, fibers of various types could be mixed together to obtain Mix WPC. However, research need to be carried out to identify the contribution of different fiber type collectively to the mechanical properties of Mix natural fiber polymer composite (NFPC). In this study, preliminary work on the use of natural fibre (NF) such as kenaf, sugar palm and pineapple leaf fibers in the preparation of Mix NFPC were carried out. Four different fiber mix samples with different fiber ratio and size were formulated using polypropylene (PP) as the polymer matrix. Montmorrilonite (MMT) filler was added at constant amount for enhancement of composite mechanical properties. Samples were mixed and prepared using a twin screw extruder and mini injection moulding resepectively. Individual fibers and NFPC prepared were characterized using thermogravimetric analyzer (TGA). Tensile, flexural and impact strength of the composites were determined. Generally, it was found that addition of fiber mix at 50% fiber loading enhance the tensile and flexural strength of the various NFPC with minimal exceptions. The impact strength of the composites were comparable to that of blank PP implying that addition of fiber gives additional advantage besides being eco-friendly. It was also found that higher kenaf loading and different size of fiber mix contribute positively to the various strengths measured. In addition to that, composition of individual fibers also contribute to the mechanical properties of the NFPCs

Renewable resources-based PTT [poly(trimethylene terephthalate)]/switchgrass fiber composites: The effect of compatibilization

2012 ◽  
Vol 85 (3) ◽  
pp. 521-532 ◽  
Author(s):  
Jeevan Prasad Reddy ◽  
Manjusri Misra ◽  
Amar Mohanty
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Renewable Resources ◽  
Melt Flow Index ◽  
Mechanical Analysis ◽  
Thermomechanical Properties ◽  
Flow Index ◽  
Methylene Diphenyl Diisocyanate ◽  
Trimethylene Terephthalate ◽  
The Impact

In this research, switchgrass (SG) fiber-reinforced poly(trimethylene terephthalate) (PTT) biocomposites were prepared by extrusion followed by injection molding machine. The methylene-diphenyl-diisocyanate-polybutadiene (MDIPB) prepolymer was used to enhance the impact strength of the biocomposites. In addition, the polymeric methylene-diphenyl-diisocyanate (PMDI) compatibilizer was used to enhance the mechanical properties of the composites. The effect of compatibilizer on mechanical, crystallization melting, thermomechanical, melt flow index (MFI), morphological, and thermal stability properties of the composites was studied. Thermomechanical properties of the biocomposites were studied by dynamic mechanical analysis (DMA). Scanning electron microscopy (SEM) was used to observe the interfacial adhesion between the fiber and matrix. The results showed that MDIPB and PMDI have a significant effect on the mechanical properties of the composites. The impact strength of MDIPB- and PMDI-compatibilized composites was increased by 87 % when compared to the uncompatibilized composite.

Effects of microcrystalline cellulose on the mechanical properties of low-density polyethylene composites

2018 ◽  
Vol 32 (3) ◽  
pp. 297-311 ◽  
Author(s):  
Yousef Ahmad Mubarak ◽  
Raghda Talal Abdulsamad
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Impact Strength ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Weight Fraction ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Ldpe Composites ◽  
The Impact

This work was intended to provide an understanding of the effect of microcrystalline cellulose (MCC) on the mechanical properties of low-density polyethylene (LDPE). The impact resistance and the tensile properties of low-density LDPE/MCC composites were investigated. The weight fraction of MCC was varied at (0, 0.5, 1, 2.5, 5, 10, 20, and 30 wt%). The obtained blends were then used to prepare the required tensile and impact testing samples by hot compression molding technique. It has been found that MCC has a strong influence on the mechanical properties of LDPE. At a low MCC weight fraction, there was a little improvement in the ultimate strength, fracture stress, and elongation at break, but at a high MCC weight fraction, the tensile properties were deteriorated and reduced significantly. The addition of 1 wt% MCC to LDPE enhanced the mentioned properties by 10, 25, and 6%, respectively. While at 30 wt% MCC, these properties were lowered by 36, 25, and 96%. The elastic modulus of LDPE composites was improved on all MCC weight fractions used in the study, at 20 wt% MCC, an increase in the elastic modulus by 12 folds was achieved. On the other hand and compared with the impact strength of pure LDPE, the addition of MCC particles enhanced the impact strength, the highest value obtained was for LDPE composites filled with 10 wt% MCC where the impact strength enhanced by two folds.

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