Enhanced mechanical and electrical properties of nylon-6 composite by using carbon fiber/graphene multiscale structure as additive

2015 ◽  
Vol 132 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Chong-Guang Zang ◽  
Xiang-Dong Zhu ◽  
Qing-Jie Jiao
Keyword(s):  
Electrical Properties ◽  
Carbon Fiber ◽  
Nylon 6 ◽  
Mechanical And Electrical Properties ◽  
Multiscale Structure

Effects of carbon fiber on mechanical and electrical properties of fly ash geopolymer composite

2018 ◽  
Vol 5 (6) ◽  
pp. 14017-14025 ◽  
Author(s):  
Panjasil Payakaniti ◽  
Supree Pinitsoonthorn ◽  
Prasit Thongbai ◽  
Vittaya Amornkitbamrung ◽  
Prinya Chindaprasirt
Keyword(s):  
Fly Ash ◽  
Electrical Properties ◽  
Carbon Fiber ◽  
Mechanical And Electrical Properties

Effects of Functionalization MWCNTs on the Mechanical and Electrical Properties of nylon-6 Composites

2013 ◽  
Vol 750-752 ◽  
pp. 127-131 ◽  
Author(s):  
Xiang Dong Zhu ◽  
Qing Jie Jiao ◽  
Chong Guang Zang ◽  
Xian Peng Cao
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Volume Ratio ◽  
Nylon 6 ◽  
Coupling Process ◽  
Mechanical And Electrical Properties ◽  
Multi Walled Carbon Nanotube ◽  
The Matrix ◽  
The Impact ◽  
Coupling Treatment

Chemically coupling functionalization multi-walled carbon nanotube (MWCNTs)/nylon-6 (PA6) composites were prepared. The nanotubes were first treated by a volume ratio of 3:1 mixture of concentrated H2SO4/HNO3, and then the γ-aminopropyl-triethoxysilane (KH-550) was carried onto the surface of MWCNTs. Effect of MWCNTs coupling treatment on the mechanical and electrical properties of the MWCNTs/PA6 composites were investigated. The impact strength, tensile strength and modulus of p-MWCNTs (coupling process)/PA6 composites increase by 115.9%, 27.2% and 167.7%, respectively, compared with those of the pure nylon-6 resin. A significant increase of the electrical conductivity of the p-MWCNTs/PA6 composites with respect to the original-MWCNTs and a-MWCNTs/PA6 composites due to the increased compatibility with the matrix due to the formation of an inter face with stronger interconnections.

scholarly journals Mechanical and Electrical Properties of Injection-Molded MWCNT-Reinforced Polyamide 66 Hybrid Composites

2020 ◽  
Vol 4 (4) ◽  
pp. 177
Author(s):  
Ross Zameroski ◽  
Chadwick J. Kypta ◽  
Brian A. Young ◽  
Seyed Hamid Reza Sanei ◽  
Adam S. Hollinger
Keyword(s):  
Electrical Properties ◽  
Carbon Fiber ◽  
Hybrid Composites ◽  
Skin Layer ◽  
Scanning Electron Micrographs ◽  
Polyamide 66 ◽  
Multiwalled Carbon ◽  
Mechanical And Electrical Properties ◽  
Nylon 6,6 ◽  
Injection Molded

The addition of fillers or reinforcements has a direct influence on the mechanical and electrical properties of polymers. Such properties are a function of the morphology and the distribution of fillers in the polymer base. Each feature may have contrasting effects on mechanical and electrical properties. In this study, chopped carbon fiber of different lengths and multiwalled carbon nanotubes (MWCNTs) were added to nylon 6,6. Specimens were manufactured by injection molding of a polyamide/MWCNT masterbatch with the addition of loose chopped carbon fiber. Tensile testing of dogbone specimens was conducted to obtain Young’s modulus, ultimate tensile strength, and elongation. Electrical conductivity testing was conducted on the same specimens prior to mechanical testing. To evaluate the morphology of fillers, scanning electron micrographs were evaluated. Micrographs show the presence of a skin layer close to the surface of the specimens. For this reason, core and surface conductivities were compared. The results show that while promising electrical properties can be achieved by the addition of fillers, the improvement in mechanical properties is minimal.

Mechanical and Electrical Properties of Graphite/Carbon Fiber/Phenolic Resin Composite

2011 ◽  
Vol 418-420 ◽  
pp. 1452-1455
Author(s):  
Mi Dan Li ◽  
Dong Mei Liu
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Phenolic Resin ◽  
Resin Composite ◽  
Low Carbon ◽  
Mechanical Mixing ◽  
Mechanical And Electrical Properties ◽  
Resin Loading

Composites made of phenolic resin filled with natural graphite platelets and carbon fibers are fabricated by mechanical mixing, followed by compression molding. The flexural strength and electrical conductivity of composite are analyzed to determine the influence of phenolic resin and carbon fiber on mechanical and electrical properties. It is found that there is a marked dependence of the electrical conductivity and flexural strength on phenolic resin content. The electrical conductivity decreases and flexural strength increases with the increasing of phenolic resin loading. The presence of carbon fiber helps improve the flexural strength of composite such that 4 wt% CF increases the flexural strength of composite about 90%. However, an excess amount of carbon fiber reduces the flexural strength due to poor dispersion of carbon fiber in composite. The result also shows that the addition of carbon fiber exhibits a slight effect on the electrical conductivity of composite at low carbon fiber loadings.

scholarly journals Thermal, Mechanical and Electrical Properties of Carbon Fiber Fabric and Graphene Reinforced Segmented Polyurethane Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1289
Author(s):  
Zhe Shi ◽  
Cong Zhang ◽  
Xin-Gang Chen ◽  
Ang Li ◽  
Yang-Fei Zhang
Keyword(s):  
Electrical Properties ◽  
Carbon Fiber ◽  
Thermal Interface Material ◽  
Segmented Polyurethane ◽  
Thermal Interface ◽  
Pressing Method ◽  
Mechanical And Electrical Properties ◽  
Carbon Fiber Fabric ◽  
Polyurethane Composites ◽  
Fiber Fabric

Thermal conductive materials with reliable and high performances such as thermal interface materials are crucial for rapid heat transferring in thermal management. In this work, carbon fiber fabric and graphene reinforced segmented polyurethane composites (CFF-G/SPU) were proposed and prepared to obtain superior thermal, mechanical and electrical properties using the hot-pressing method. The composites exhibit excellent tensile strength and can withstand a tensile force of at least 350 N without breaking. The results show that, comparing with the SPU material, the thermal conductivity is increased by 28% for the CFF-G/SPU composite, while the in-plane electrical conductivity is increased by 8 orders of magnitude to 175 S·m−1. The application of CFF-G/SPU composite as a winding thermal interface material with electric-driven self-heating effect presents good performances of fluidity and interface wettability. The composite has great advantages in phase transition and filling the interfacial gap in the short time of few seconds under the condition of electrical field, with the interface temperature difference between two layers significantly reduced.

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