Role of Fillers on Physico-Mechanical Properties of POM Based Hybrid Composites

2019 ◽  
Vol 895 ◽  
pp. 170-175
Author(s):  
Krishna ◽  
Bheemappa Suresha ◽  
H.M. Somashekar
Keyword(s):  
Mechanical Properties ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Full Range ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Charpy Impact ◽  
Filler Loading ◽  
Melt Mixing ◽  
Uniform Dispersion

Silicone (SC) and polytetrafluroethylene (PTFE) reinforced polyoxymethylene (POM) composites have been fabricated by melt mixing followed by injection moulding. Physical and mechanical properties of SC and SC+PTFE/POM composites have been investigated as per ASTM standards. The dispersion of fillers in POM was studied by using scanning electron microscopy (SEM). The effects indicated that the hardness of the POM matrix decreases with increasing the SC content and slight increase in hardness was found in SC+PTFE/POM. The mechanical performance of the composites are investigated by means of a well known universal testing machine and notched Charpy impact tester. The POM with 10 wt. % of SC binary composite reveals good mechanical properties. The tensile and flexural properties of SC+PTFE/POM hybrid composites are higher than that of 20 and 30 wt. % SC reinforced POM binary composites. Further, these mechanical strength and impact toughness are established on the kind as nicely as filler loading over the full range of the study. The uniform dispersion of the filler in the POM matrix is obtained from SEM micrographs. Furthermore, SEM was used to identify the fractographic points of the tensile fractured POM based composites.

HDPE- Coir composites–fabrication, process parameters and properties

2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Md. Sahadat Hossain 3 ◽  
Md. Nazrul Islam 1* ◽  
M A Gafur 2
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Mechanical Stability ◽  
Heating Temperature ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Interfacial Bonding ◽  
Coir Fiber ◽  
Melt Mixing ◽  
Fiber Addition

The composites of biodegradable high density polypropylene (HDPE) reinforced with short coir fiber were prepared by melt mixing followed by hot press molding. The effect of fiber addition on some physical and mechanical properties was evaluated. Different process parameters (e.g. mixing time, heating temperature and time, cooling time etc.) were established for good sample preparation The effects of fiber addition on some physical and mechanical properties were evaluated. The mechanical properties were studied via Universal Testing Machine (UTM). The density was increased with the increase of fiber addition. The tensile strength (TS) of fabricated product increased with the increase of fiber addition up to 10% (by wt.) and then decreased continuously. The elongation of fabricated composites was decreased with the increase of fiber addition continuously. The changes in the mechanical properties were broadly related to the accompanying interfacial bonding of HDPE coir composites (HDPECC). To observe the hydrophilicity of the prepared composites was evaluated by the water uptake properties. The interfacial bonding of the fiber and matrix of the coir fiber reinforced composites was studied via scanning electron microscope. It revealed that the introduction of short coir fiber led to a slightly improved mechanical stability of PP- Coir composites. 

scholarly journals Mechanical performance of roselle/sugar palm fiber hybrid reinforced polyurethane composites

BioResources ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. 6238-6249
Author(s):  
A. M. Radzi ◽  
S. M. Sapuan ◽  
M. Jawaid ◽  
M. R. Mansor
Keyword(s):  
Impact Strength ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Testing Machine ◽  
Morphological Properties ◽  
Scanning Electron Micrographs ◽  
Melt Mixing ◽  
Palm Fiber ◽  
Sugar Palm Fiber ◽  
Scanning Electron

The effect of sugar palm fiber (SPF) loading was studied relative to the mechanical properties of roselle (RF)/SPF/thermoplastic polyurethane (TPU) hybrid composites. RF/SPF/TPU hybrid composites were fabricated at different weight ratios (100:0, 75:25, 50:50, 25:75, and 0:100) by melt mixing and hot compression. The mechanical (tensile, flexural, and impact test) and morphological properties of tensile fractured samples were examined using a universal testing machine, impact machine, and scanning electron microscope. It was found that the hybridization of RF/SPF increased its impact strength corresponding to the increases in the SPF content of the composites. The tensile and flexural properties of the hybrid composites decreased due to poor interfacial bonding between the fiber and matrix. Scanning electron micrographs of the tensile fractured surface of the RF/SPF hybrid composites revealed fiber pullouts and poor adhesion bonding. In conclusion, the hybridization of SPF with RF/TPU composites enhanced its impact strength while decreasing the tensile and flexural strength.

scholarly journals Layered Double Hydroxide (MgFeAl-LDH)-Based Polypropylene (PP) Nanocomposite: Mechanical Properties and Thermal Degradation

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3452
Author(s):  
Sajid Naseem ◽  
Sven Wießner ◽  
Ines Kühnert ◽  
Andreas Leuteritz
Keyword(s):  
Mechanical Properties ◽  
Thermal Degradation ◽  
Layered Double Hydroxide ◽  
Testing Machine ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Small Scale ◽  
Melt Mixing ◽  
Limiting Oxygen Index ◽  
Double Hydroxide

This work analyzes the thermal degradation and mechanical properties of iron (Fe)-containing MgAl layered double hydroxide (LDH)-based polypropylene (PP) nanocomposite. Ternary metal (MgFeAl) LDHs were prepared using the urea hydrolysis method, and Fe was used in two different concentrations (5 and 10 mol%). Nanocomposites containing MgFeAl-LDH and PP were prepared using the melt mixing method by a small-scale compounder. Three different loadings of LDHs were used in PP (2.5, 5, and 7.5 wt%). Rheological properties were determined by rheometer, and flammability was studied using the limiting oxygen index (LOI) and UL94 (V and HB). Color parameters (L*, a*, b*) and opacity of PP nanocomposites were measured with a spectrophotometer. Mechanical properties were analyzed with a universal testing machine (UTM) and Charpy impact test. The thermal behavior of MgFeAl-LDH/PP nanocomposites was studied using differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). The morphology of LDH/PP nanocomposites was analyzed with a scanning electron microscope (SEM). A decrease in melt viscosity and increase in burning rate were observed in the case of iron (Fe)-based PP nanocomposites. A decrease in mechanical properties interpreted as increased catalytic degradation was also observed in iron (Fe)-containing PP nanocomposites. Such types of LDH/PP nanocomposites can be useful where faster degradation or faster recycling of polymer nanocomposites is required because of environmental issues.

Role of Zirconia Filler on Mechanical Properties of HDPE/UHMWPE Blend Composites

2019 ◽  
Vol 895 ◽  
pp. 272-277
Author(s):  
Bheemappa Suresha ◽  
Achyutananta Padaki ◽  
Akash Jain ◽  
Bharath Kumar ◽  
Akshay A. Kulkarni
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Bending Strength ◽  
Materials Science ◽  
Hybrid Composites ◽  
Physical And Mechanical Properties ◽  
High Density ◽  
Melt Mixing ◽  
Fractographic Features

Hybrid composites based on high-density polyethylene-grafted maleic anhydride /ultra-high density HYPERLINK "https://www.sciencedirect.com/topics/materials-science/polypropylene" \o "Learn more about Polypropylene" polyethylene (HDPE/UHMWPE) loaded with short glass fiber (SGF) and zirconia (ZrO2) micron sized particles were fabricated by melt-mixing process and their physical and mechanical properties were determined. Physio-mechanical properties such as density, hardness, flexural properties and impact strength of these composites were studied. The presence of SGF and ZrO2 in the grafted HDPE/UHMWPE blend increased the hardness, bending strength and modulus. However, impact strength decreased with increase in ZrO2 loading. Further, it was found that the HDPE/UHMWPE blend with 25 wt. % SGF and 2.5 wt. %ZrO2 showed optimum mechanical properties due to improved fiber/matrix adhesion. Scanning electron microscope was used to identify the fractographic features of the selected fractured coupons.

scholarly journals The study On Mechanical Properties of HDPE Hybrid Polymer based Hybrid Composites

2021 ◽  
pp. 140-148
Author(s):  
Inchara C ◽  
Shantharaja M ◽  
Yogesh Kumar K J
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Hybrid Composites ◽  
Low Cost ◽  
Testing Machine ◽  
Dissimilar Materials ◽  
Impact Testing ◽  
Filler Materials ◽  
Melt Mixing ◽  
The Impact

Polymer and their composites are used in many engineering applications as an alternate of metals, because of the parameters such as low cost, light weight and durability. Hybridization is a process of mixing two or more similar or dissimilar materials. It increases the performance and efficiency. In this study investigation has been made on mechanical properties of HDPE polymer based hybrid composites fabricated from the effect of various synthetic fibers (SGF ,PTFE,SCF), synthetic fillers(Silica, hydroxyapatite, zirconia) by melt mixing method using twin screw extruder followed by injection molding technique. The mechanical properties of the samples such as tensile test, flexural test were measured by universal testing machine. And the impact test was performed on Izod impact testing machine. The results show that the tensile strength of hybrid composite TR-4 sample increases compared to other composites. Flexural strength of sample TR-6 shows highest flexural strength comparted to others. The impact strength increases when the filler materials 2% of zirconia and 2% of hydroxyapatite are added to composite material i.e. is TR-6 sample.

Experimental investigation of the mechanical behavior of glass fiber/high fluidity polyamide-based composites for automotive market

2021 ◽  
pp. 073168442110140
Author(s):  
Hossein Ramezani-Dana ◽  
Moussa Gomina ◽  
Joël Bréard ◽  
Gilles Orange
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Mechanical Performance ◽  
Physical And Mechanical Properties ◽  
Ultimate Strain ◽  
Uniaxial Tensile ◽  
Compression Tests ◽  
Automotive Market ◽  
Glass Fiber Reinforced ◽  
Glass Fiber Reinforcement

In this work, we examine the relationships between the microstructure and the mechanical properties of glass fiber–reinforced polyamide 6,6 composite materials ( V f = 54%). These materials made by thermocompression incorporate different grades of high fluidity polyamide-based polymers and two types of quasi-UD glass fiber reinforcement. One is a classic commercial fabric, while the other specially designed and manufactured incorporates weaker tex glass yarns (the spacer) to increase the planar permeability of the preform. The effects of the viscosity of the polymers and their composition on the wettability of the reinforcements were analyzed by scanning electron microscopy observations of the microstructure. The respective influences of the polymers and the spacer on the mechanical performance were determined by uniaxial tensile and compression tests in the directions parallel and transverse to the warp yarns. Not only does the spacer enhance permeability but it also improves physical and mechanical properties: tensile longitudinal Young’s modulus increased from 38.2 GPa to 42.9 GPa (13% growth), tensile strength increased from 618.9 MPa to 697 MPa (3% growth), and decrease in ultimate strain from 1.8% to 1.7% (5% reduction). The correlation of these results with the damage observed post mortem confirms those acquired from analyses of the microstructure of composites and the rheological behaviors of polymers.

Studies on Nanostructured Polyurethane/Clay Interpenetrating Polymer Networks

2005 ◽  
Vol 475-479 ◽  
pp. 1001-1004
Author(s):  
Ninglin Zhou ◽  
Xiao Xian Xia ◽  
Li Li ◽  
Shao Hua Wei ◽  
Jian Shen
Keyword(s):  
Mechanical Properties ◽  
Polymer Networks ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Interpenetrating Polymer Networks ◽  
Absorption Properties ◽  
Tensile Testing Machine ◽  
Swelling Agent ◽  
Silicate Layers ◽  
Polyurethane Matrix

A novel exfoliated polyurethane (PU)/clay Interpenetrating Polymer Networks (IPNs) nanocomposite has been synthesized with polyurethane and organoclay. MTPAC is used as swelling agent to treat Na-montmorillonite for forming organoclay. The results indicate that there is very good compatibility between organoclay and PU. Nanoscale silicate dispersion was analyzed by XRD. The mechanical properties of the nanocomposites have been measured by tensile testing machine. The nanocomposites show obviously improved physical and mechanical properties when compared with the pure polymer. Additionally, PU /MTPAC- clay shows lower water absorption properties than pure PU do. In addition, the reinforcing and intercalating mechanism of silicate layers in polyurethane matrix are discussed.

Development of Banana/Coir Natural Fibers Reinforced Polypropylene Hybrid Composites: The Effect of MA-g-PP (Maleic Anhydride Grafted Polypropylene) on Mechanical Properties and Thermal Properties

2021 ◽  
Vol 32 ◽  
pp. 85-97
Author(s):  
Gunturu Bujjibabu ◽  
Vemulapalli Chittaranjan Das ◽  
Malkapuram Ramakrishna ◽  
Konduru Nagarjuna
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Coupling Agent ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Mechanical Tests ◽  
Coir Fiber ◽  
Banana Fiber ◽  
C Fibers

Banana/Coir fiber reinforced polypropylene hybrid composites was formulated by using twin screw extruder and injection molding machine. Specimens were prepared untreated and treated B/C Hybrid composites with 4% and 8% of MA-g-PP to increase its compatibility with the polypropylene matrix. Both the without MA-g-PP and with MA-g-PP B/C hybrid composites was utilized and three levels of B/C fiber loadings 15/5, 10/10 and 5/15 % were used during manufacturing of B/C reinforced polypropylene hybrid composites. In this work mechanical performance (tensile, flexural and impact strengths) of untreated and treated (coupling agent) with 4% and 8% of MA-g-PP B/C fibers reinforced polypropylene hybrid composite have been investigated. Treated with MA-g-PP B/C fibers reinforced specimens explored better mechanical properties compared to untreated B/C fibers reinforced polypropylene hybrid composites. Mechanical tests represents that tensile, flexural and impact strength increases with increase in concentration of coupling agent compared to without coupling agent MA-g-PP hybrid composites . B/C fibers reinforced polymer composites exhibited higher tensile, flexural and impact strength at 5% of Banana fiber, 15% of fiber Coir in the presence of 8% of MA-g-PP compared to 4% of MA-g-PP and untreated hybrid composites. The percentage of water absorption in the B/C fibers reinforced polypropylene hybrid composites resisted due to the presence of coupling agent MA-g-PP and thermogravimetry analysis (TGA) also has done.

Hybridization effect on mechanical properties of short basalt/jute fiber-reinforced polyester composites

2013 ◽  
Vol 20 (4) ◽  
pp. 343-350 ◽  
Author(s):  
Pandian Amuthakkannan ◽  
Vairavan Manikandan ◽  
Jebbas Thangaiah Winowlin Jappes ◽  
Marimuthu Uthayakumar
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Hybrid Composites ◽  
Fiber Composite ◽  
Testing Machine ◽  
Basalt Fiber ◽  
Jute Fiber ◽  
Computer Assisted ◽  
Fiber Reinforced ◽  
Polyester Composites

AbstractMechanical properties of fiber reinforcement that can be obtained by the introduction of basalt fibers in jute fiber-reinforced polyester composites have been analyzed experimentally. Basalt/jute fiber-reinforced hybrid polymer composites were fabricated with a varying fiber percentage by using compression molding techniques. The fabricated composite plates were subjected to mechanical testing to estimate tensile strength, flexural strength and impact strength of the composites. The effect of fiber content on basalt/jute fiber in the composites has been studied. Addition of jute fiber into basalt fiber composite makes it a cost-effective one. Incorporation of basalt fiber into the composites was at approximately 10%, 20%, up to 90%, and the jute fiber percentage was reduced from 90%, 80%, to 10% correspondingly. Mechanical properties were investigated as per ASTM standards. Tensile and flexural strengths were tested by using a computer-assisted universal testing machine, and impact strength by using an Izod impact tester. It has been observed that the addition of jute fiber to the basalt fiber polyester composites enhanced the mechanical properties. Water absorption of hybrid composites was also analyzed and was found to be proportional to fiber percentage.

scholarly journals Physical and Mechanical Properties of Polypropylene-Wood-Carbon Fiber Hybrid Composites

BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Djamila Kada ◽  
Sébastien Migneault ◽  
Ghezalla Tabak ◽  
Ahmed Koubaa
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Hybrid Composites ◽  
Physical And Mechanical Properties
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