Impact Energy Evaluation of Natural Castor Oil Polyurethane Matrix Composites Reinforced with Jute Fabric

2019 ◽  
pp. 63-68
Author(s):  
José Gustavo de Almeida Machado ◽  
Juliana Peixoto Rufino Gazem de Carvalho ◽  
Anna Carolina Cerqueira Neves ◽  
Felipe Perissé Duarte Lopes ◽  
Sérgio Neves Monteiro ◽  
...  
Keyword(s):  
Impact Energy ◽  
Castor Oil ◽  
Matrix Composites ◽  
Jute Fabric ◽  
Energy Evaluation ◽  
Polyurethane Matrix

Castor Oil Based Polyurethane Nanocomposites with Cellulose Nanocrystallites Fillers

2013 ◽  
Vol 856 ◽  
pp. 309-313 ◽  
Author(s):  
Anupama Kaushik ◽  
Alka Garg
Keyword(s):  
Mechanical Properties ◽  
Castor Oil ◽  
Barrier Properties ◽  
Filler Loading ◽  
Total Weight ◽  
High Shear ◽  
Homogeneous Dispersion ◽  
Cotton Linters ◽  
Polyurethane Nanocomposites ◽  
Polyurethane Matrix

In this study the castor oil based polyurethane (PU) nanocomposites were prepared by dispersing the cellulose nanocrystallites (CNC) isolated from cotton linters. CNC was dispersed in PU matrix using ultrasonicator coupled with high shear homogenizer. The filler loading was varied from 0-10% of the total weight of the mixture. The PU/CNC nanocomposites were characterized by SEM, XRD, FTIR, mechanical and barrier properties. SEM confirmed homogeneous dispersion of CNCs in polyurethane matrix with small agglomerates at certain places. Improvement in mechanical properties was observed as compared to neat PU. Diffusivity and permeability of the nanocomposites was reduced at higher loadings of CNC.

A Study of the Mechanical and Fracture Behavior of Jute-Fabric-Reinforced Clay-Modified Thermoplastic Starch-Matrix Composites

2007 ◽  
Vol 292 (10–11) ◽  
pp. 1075-1084 ◽  
Author(s):  
Dipa Ray ◽  
Suparna Sengupta ◽  
Siba P. Sengupta ◽  
Amar K. Mohanty ◽  
Manjusri Misra
Keyword(s):  
Fracture Behavior ◽  
Thermoplastic Starch ◽  
Matrix Composites ◽  
Jute Fabric ◽  
Reinforced Clay

Mechanical and microstructural analysis of Al-Al2O3/B4C hybrid composites

2020 ◽  
Vol 234 (12) ◽  
pp. 1503-1514
Author(s):  
Pankaj K Gupta ◽  
MK Gupta
Keyword(s):  
Metal Matrix Composites ◽  
Impact Energy ◽  
Metal Matrix ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Microstructural Analysis ◽  
Al Alloy ◽  
Hybridization Technique ◽  
Matrix Composites ◽  
Hybrid Metal Matrix Composites

The present work aims to enhance the mechanical performance of monolithic Al alloy and single reinforced metal matrix composite using a hybridization technique. The microparticles of alumina and boron carbide were reinforced into cast Al alloy (6061) in a systematic varying ratio (i.e.100/0, 75/25, 50/50, 25/75 and 0/100) to prepare the hybrid metal matrix composites via stir casting method. The mechanical properties (i.e. tensile, impact, hardness and flexural) of the prepared composites were investigated as per ASTM standards. Furthermore, microstructural analysis of unfractured and fractured composite samples was also carried out using Scanning Electron Microscope. It was observed that hybrid composites comprising of microparticles revealed an enhanced tensile, flexural and hardness properties, and reduced impact energy and porosity as compared to Al alloy and single reinforced metal matrix composites. The highest values of tensile strength and modulus were offered by a hybrid composite (B50A50), which was 40% and 52.12% higher than that of Al alloy. Furthermore, there was an improvement of 105.72% in flexural strength and a reduction of 23.88% in impact energy for composite B50A50 than that of Al alloy. The present developed hybrid metal matrix composites can be proposed to be used in automobile parts and construction applications.

Mechanism of impact energy absorption for metal-matrix composites

1992 ◽  
Vol 14 (2-3) ◽  
pp. 135-139
Author(s):  
Chen Rong ◽  
Wu Renjie ◽  
Zhang Guoding
Keyword(s):  
Metal Matrix Composites ◽  
Energy Absorption ◽  
Impact Energy ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Mechanism Of Impact

scholarly journals The influence of ultraviolet radiation on the optical properties of glass fibre reinforcements for polyurethane matrix composites

2019 ◽  
Vol 135 (6) ◽  
pp. 510-515
Author(s):  
Michal Sedlacik ◽  
Josef Osicka ◽  
Vladimir Pavlinek ◽  
Ladislav Fojtl
Keyword(s):  
Optical Properties ◽  
Ultraviolet Radiation ◽  
Glass Fibre ◽  
Matrix Composites ◽  
Polyurethane Matrix

The effects of cauliflower-like short carbon fibers on the mechanical properties of rigid polyurethane matrix composites

2020 ◽  
Vol 89 ◽  
pp. 106718
Author(s):  
Momo Huang ◽  
Weiwei Li ◽  
Xiaojing Liu ◽  
Ming Feng ◽  
Jie Yang
Keyword(s):  
Mechanical Properties ◽  
Carbon Fibers ◽  
Matrix Composites ◽  
Short Carbon ◽  
Polyurethane Matrix

Mechanical properties and erosion wear resistance of polyurethane matrix composites

Wear ◽  
2005 ◽  
Vol 259 (1-6) ◽  
pp. 676-683 ◽  
Author(s):  
R. Zhou ◽  
D.H. Lu ◽  
Y.H. Jiang ◽  
Q.N. Li
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Matrix Composites ◽  
Erosion Wear ◽  
Polyurethane Matrix

Evaluation of Castor Oil Polyurethane Reinforced with Lignin and Cellulose from Sugarcane Straw

2010 ◽  
Vol 123-125 ◽  
pp. 1143-1146 ◽  
Author(s):  
Patrícia Câmara Mileo ◽  
Matheus F. De Oliveira ◽  
Sandra M. Luz ◽  
George J.M. Rocha ◽  
Adilson Roberto Gonçalves
Keyword(s):  
Castor Oil ◽  
Cellulose Fibers ◽  
Material Behavior ◽  
Promising Alternative ◽  
Sem Micrographs ◽  
Sugarcane Straw ◽  
Pure Matrix ◽  
The Matrix ◽  
Polyurethane Composites ◽  
Polyurethane Matrix

The search for materials from renewable sources such as vegetable oil-based polymers, polyurethane based on castor oil represents a promising alternative in researches. Using castor oil polyurethane as matrix for composites reinforced with lignin and cellulose from sugarcane straw is in tune with economical and environmental interests. The objective of this work was the evaluation of the changes on the structure and thermal behavior of castor oil polyurethane composites reinforced with lignin and cellulose from sugarcane straw. The cellulose and lignin were extracted from the straw by acid hydrolysis and then they were milled. For the production of the polyurethane, the mass reason between polyol (castor oil) and diisocyanate was 1.5:1.0. Reinforcement of the matrix was done changing the concentration of cellulose and lignin. SEM micrographs of fractured surfaces of the obtained composites and thermal analysis (TGA) were done. No lignin could be seen in SEM micrographs, what suggests a blend material behavior. The addition of cellulose fibers (30%) and lignin (40%) to the polyurethane matrix has caused an increase of the stiffness in the resulting composite when compared with the pure matrix. Above these rates, stiffness decreases. The presence of lignin or cellulose fibers in polyurethane matrix seems to increase mechanical properties of the composite, and also introduce better thermal stability than the pure matrix. Its presence might also bring other significant synergetic properties to the final composite, what has currently been studied. At the same time, the blend behavior of Polyurethane-Lignin composites has been investigated.

Wear behaviour of polyurethane composites with respect to the other mechanical properties

2014 ◽  
Vol 11 (2) ◽  
pp. 139-146
Author(s):  
Anna Porąbka ◽  
Vasiliki-Maria Archodoulaki ◽  
Wolfgang Molnar ◽  
Jadwiga Laska
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Physical And Mechanical Properties ◽  
The Other ◽  
Wear Behaviour ◽  
Matrix Composites ◽  
Different Temperatures ◽  
Polyurethane Composites ◽  
Polyurethane Matrix ◽  
Properties Of Composites

Two series of polyurethane matrix composites were prepared. As generally resistant to wear, the PUs can be used as matrices for wear protective and load-bearing composites. The objective of this study was to compare the mechanical properties of composites containing 5% vol. of selected ceramic particles, and unmodified PUs. The effect of various particles on physical and mechanical properties was studied. The results showed that the mechanical properties changed compared to reference materials: modulus improved in certain materials and in different temperatures, revealing the favourable influence of FA and SiO2 particles. In turn, Rm and wear resistance decreased with the type and shape of filler.

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