scholarly journals Experimental investigation and optimization of compression moulding parameters for MWCNT/glass/kevlar/epoxy composites on mechanical and tribological properties

2021 ◽  
Vol 15 ◽  
pp. 327-341
Author(s):  
Hanumantharaya Rangaswamy ◽  
Harsha H. M ◽  
Manjunath Patel Gowdru Chandrashekarappa ◽  
Danil Yu Pimenov ◽  
Khaled Giasin ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Tribological Properties ◽  
Epoxy Composites ◽  
Compression Moulding ◽  
Mechanical And Tribological Properties

scholarly journals Evaluation of Mechanical and Tribological Properties of Corn Cob-Reinforced Epoxy-Based Composites—Theoretical and Experimental Study

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4407
Author(s):  
Ahmed Fouly ◽  
Hany S. Abdo ◽  
Asiful H. Seikh ◽  
Khalid Alluhydan ◽  
Hend I. Alkhammash ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Tribological Properties ◽  
Element Model ◽  
Epoxy Composites ◽  
Homogeneous Distribution ◽  
Natural Material ◽  
Corn Cob ◽  
Natural Materials ◽  
Mechanical And Tribological Properties

Epoxy is considered to be the most popular polymer and is widely used in various engineering applications. However, environmental considerations require natural materials-based epoxy. This necessity results in further utilization of natural materials as a natural reinforcement for different types of composites. Corn cob is an example of a natural material that can be considered as an agricultural waste. The objective of the present work is to improve the economic feasibility of corn cob by converting the original corn cob material into powder to be utilized in reinforcing epoxy-based composites. In the experiment, the corn cob was crushed and ground using a grain miller before it was characterized by scanning electron microscopy (SEM). The corn cob powder was added to the epoxy with different weight fractions (2, 4, 6, 8, 10 wt%). In order to prevent corn cob powder agglomeration and ensure homogeneous distribution of the reinforcement inside the epoxy, the ultrasonic technique and a mechanical stirrer were used. Then, the composite’s chemical compositions were evaluated using X-ray diffraction (XRD). The mechanical experiments showed an improvement in the Young’s modulus and compressive yield strength of the epoxy composites, increasing corn cob up to 8 wt% by 21.26% and 22.22%, respectively. Furthermore, tribological tests revealed that reinforcing epoxy with 8 wt% corn cob can decrease the coefficient of friction by 35% and increase wear resistance by 4.8%. A finite element model for the frictional process was constructed to identify different contact stresses and evaluate the load-carrying capacity of the epoxy composites. The finite element model showed agreement with the experimental results. An epoxy containing 8 wt% corn cob demonstrated the optimal mechanical and tribological properties. The rubbed surfaces were investigated by SEM to identify the wear mechanism of different composites.

Effects of 2-D transition metal carbide Ti2CTxon properties of epoxy composites

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87341-87352 ◽  
Author(s):  
Heng Zhang ◽  
Libo Wang ◽  
Aiguo Zhou ◽  
Changjie Shen ◽  
Yahui Dai ◽  
...  
Keyword(s):  
Transition Metal ◽  
Tribological Properties ◽  
Epoxy Composites ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Mechanical And Tribological Properties ◽  
Intercalation Polymerization

By means ofin situintercalation polymerization Ti2CTx/EP nanocomposites were prepared, which possessed excellent mechanical and tribological properties.

Effects of Structured Fibre on Mechanical and Tribological Properties of Phenolic Composites for Application to Friction Brakes

2018 ◽  
Vol 26 (4) ◽  
pp. 315-324
Author(s):  
Yunhai Ma ◽  
Yucheng Liu ◽  
Chunyu Mao ◽  
Junwei Li ◽  
Jiangtao Yu ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Test Temperature ◽  
Compression Moulding ◽  
Obvious Effect ◽  
Wear Rates ◽  
Mechanical And Tribological Properties ◽  
Treatment Tank ◽  
Heat Treated ◽  
Surface Morphologies ◽  
Wear Tests

Jute fibres were processed with different types of structures, and these fibres were applied to prepare friction composites through compression moulding. The Structured Jute fibres reinforced Friction composites (SJF) were heat-treated using a heat treatment tank, and the mechanical and tribological properties of the SJF were investigated with a friction-wear tester. The surface morphologies of friction composites were observed using Scanning Electron Microscopy (SEM). The experimental results showed that structured jute fibres could improve impact strength of SJF, but they had no obvious effect on their density and hardness. The friction-wear tests revealed the specimens to present a remarkable fade phenomenon when the test temperature was above 200°C. The presence of the structured jute fibres could decrease the wear rates (V) of SJF when the temperatures were in the range of 250 to 350°C, especially for specimens containing beaded jute fibres and specimens containing dumbbell-shaped jute fibres. They also increased the friction stability and decreased the wear rates of the friction composites. For all specimens, wear rates of the SJF increased with the test temperature. The results of this study could be useful in many applications, such as automobile brake system, clutches and friction gearings.

Preparation of small CNTs@Fe3O4 and alignment in carbon fabrics/epoxy composites to improve mechanical and tribological properties

2020 ◽  
Vol 56 (2) ◽  
pp. 1386-1400
Author(s):  
Zhe Tong ◽  
Hailin Lu ◽  
Feifei Guo ◽  
Wenxing Lei ◽  
Mochen Dong ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Epoxy Composites ◽  
Mechanical And Tribological Properties ◽  
Carbon Fabrics
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