Effect of hyperbranched epoxy resin on mechanical properties of short carbon fiber-reinforced epoxy composites

2015 ◽  
Vol 37 (9) ◽  
pp. 2727-2733 ◽  
Author(s):  
Zhongwei Zhang ◽  
Yefa Tan ◽  
Ke Feng ◽  
Xiaolong Wang ◽  
Hua Tan
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Epoxy Resin ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Short Carbon Fiber ◽  
Carbon Fiber Reinforced ◽  
Short Carbon

Study of the flame retardant properties of short carbon fiber–reinforced epoxy composites

2017 ◽  
Vol 30 (9) ◽  
pp. 1027-1035 ◽  
Author(s):  
Guo-qiang Chai ◽  
Zhi Wang ◽  
Xu Zhang
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Decomposition Rate ◽  
Epoxy Composites ◽  
Resin Composites ◽  
Fiber Reinforced ◽  
Short Carbon Fiber ◽  
Epoxy Resin Composites ◽  
Carbon Fiber Reinforced ◽  
Short Carbon

Short carbon fiber–reinforced epoxy composites (SCFRPs) are attracting increasing attention because of their excellent mechanical properties and simple molding process. However, their mechanical, magnetic, and electrical performances have been the main concern, while their flame retardant performance has not been comprehensively studied. In this article, short carbon fiber–reinforced epoxy resin composites were prepared via the method of solution blending. The effects of carbon fiber on the flame retardancy and thermal stability of epoxy resin composites were studied by a UL-94 horizontal combustion test, a cone calorimetry test, and thermogravimetry analysis. The results showed that when the short carbon fiber was 0.7 wt%, the combustion level of the material increased from FH-1 to FH-2; the peak values of the heat release rate and total heat release were reduced by 31.6% and 11.36%, respectively. Thermogravimetry analysis showed that the temperature at the maximum decomposition rate was improved by 9°C, and the decomposition rate was decreased simultaneously. The mechanical properties of the composites were improved as well.

scholarly journals Thermo-mechanical behavior of epoxy composite reinforced by carbon and Kevlar fiber

2018 ◽  
Vol 225 ◽  
pp. 01022
Author(s):  
Falak O. Abasi ◽  
Raghad U. Aabass
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Carbon Fibers ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Fiber Loading ◽  
Kevlar Fiber ◽  
Carbon Fiber Reinforced ◽  
Short Carbon

Newer manufacturing techniques were invented and introduced during the last few decades; some of them were increasingly popular due to their enhanced advantages and ease of manufacturing over the conventional processes. Polymer composite material such as glass, carbon and Kevlar fiber reinforced composite are popular in high performance and light weight applications such as aerospace and automobile fields. This research has been done by reinforcing the matrix (epoxy) resin with two kinds of the reinforcement fibers. One weight fractions were used (20%) wt., Epoxy reinforced with chopped carbon fiber and second reinforcement was epoxy reinforced with hybrid reinforcements Kevlar fiber and improved one was the three laminates Kevlar fiber and chopped carbon fibers reinforced epoxy resin. After preparation of composite materials some of the mechanical properties have been studied. Four different fiber loading, i.e., 0 wt. %, 20wt. % CCF, 20wt. % SKF, AND 20wt. %CCF + 20wt. % SKF were taken for evaluating the above said properties. The thermal and mechanical properties, i.e., hardness load, impact strength, flexural strength (bending load), and thermal conductivity are determined to represent the behaviour of composite structures with that of fibers loading. The results show that with the increase in fiber loading the mechanical properties of carbon fiber reinforced epoxy composites increases as compared to short carbon fiber reinforced epoxy composites except in case of hardness, short carbon fiber reinforced composites shows better results. Similarly, flexural strength test, Impact test, and Brinell hardness test the results show the flexural strength, impact strength of the hybrid composites values were increased with existence of Kevlar fibers, while the hardness was decrease. But the reinforcement with carbon fibers increases the hardness and decreases other tests.

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