scholarly journals The Effect of Sizing Agent of Carbon Fibre on the Interface of Electron Beam Cured Composites

2011 ◽  
Vol 20 (6) ◽  
pp. 096369351102000
Author(s):  
Jianwen Bao ◽  
Ye Li ◽  
Xiangyu Zhong ◽  
Xiangbao Chen
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Carbon Fibre ◽  
Heat Resistance ◽  
Epoxy Resin ◽  
Chemical Structure ◽  
Carbon Fibres ◽  
Composite Properties ◽  
Properties Of Composites

To understand the effect of interface on the properties of electron beam cured composites, the composition and its chemical structure of the sizing agent of carbon fibres were investigated. The results show that there are alkali groups in the sizing agent of T300 and T800 carbon fibres, and these alkali groups react with the strong proton acids that are generated by the initiator and hinder the EB curing of cationic epoxy resin matrices. The properties of the composites of T300 and T800 carbon fibres cured by EB were poor. In the composites of T700, M40 and M40J carbon fibres, the effects of the sizing agent of the carbon fibres on the EB curing and the composite properties are less than for T300 and T800. After the carbon fibres were extracted by acetone, the properties of their composites improved. In particular, the heat-resistance and mechanical properties of composites of T300 and T800 carbon fibre increased greatly.

Study on Electron Beam Curing of APTES Functionalized MWNTs/ Epoxy Composites

2011 ◽  
Vol 194-196 ◽  
pp. 1607-1610
Author(s):  
Yan Yan Lu ◽  
Hua Li ◽  
He Zhou Liu
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Epoxy Resin ◽  
Conversion Rate ◽  
Epoxy Composites ◽  
Pure Epoxy ◽  
Gel Content ◽  
Electron Beam Curing ◽  
Irradiation Process

In this study, we prepared the 3-aminopropyltriethoxysilane (APTES) functionalized MWNTs/epoxy composites by electron beam (EB) irradiation process. The modified MWNTs were characterized with SEM-EDS and FTIR. The gel content and conversion rate of epoxide groups of the EB cured pure epoxy resin and the APTES functionalized MWNTs/epoxy composites were measured and discussed. And the mechanical properties of the EB cured composites were also characterized. With addition of 0.25wt% APTES functionalized MWNTs, the Vicker’s hardness of the EB cured composite increased 100.02% compared with pure epoxy.

scholarly journals Effect of Polycarbosilane Content on Microstructures and Mechanical Properties of Short-Carbon-Fibre-Reinforced SiC Composites

2006 ◽  
Vol 15 (3) ◽  
pp. 096369350601500
Author(s):  
Xiulan He ◽  
Yuguang Dai ◽  
Yinggui Guo ◽  
Yu Zhou ◽  
Dechang Jia
Keyword(s):  
Mechanical Properties ◽  
Carbon Fibre ◽  
Liquid Phase Sintering ◽  
Carbon Fibres ◽  
Pyrolysis Products ◽  
Precursor Polymer ◽  
Microstructures And Mechanical Properties ◽  
Sic Composites ◽  
Short Carbon

Short-carbon-fibre-reinforced SiC composites were prepared by precursor pyrolysis-hot pressing with Polycarbosilane (PCS) as precursor polymer and MgO-Al2O3-Y2O3 as sintering additives. The effects of PCS content on microstructures and mechanical properties of the composites were investigated. The results showed that, the composites could be densified at a relatively low temperature of 1800? via the liquid-phase-sintering mechanism and the highest mechanical property was obtained for the composites with 20wt. % PCS content. During sintering, Y2O3, Al2O3 reacted with the pyrolysis products from PCS and formed amorphous interphase, which was benefit of densification of the composites and avoidance of degeneration of the carbon fibres. The nano PCS-derived SiC almost lied on the surface of the particle of starting powder β-SiC, which could play a role of filling up the void and improve the relative density of the composites.

Effect of Chemical Oxidation on the Interfacial Bonding between Carbon Fibre and Epoxy Resin

2001 ◽  
Vol 9 (5) ◽  
pp. 351-359 ◽  
Author(s):  
Jeng-Shyong Lin ◽  
Ye-Houn Huang ◽  
Hsien-Tang Chiu
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Carbon Fibre ◽  
Epoxy Resin ◽  
Chemical Oxidation ◽  
Interfacial Bonding ◽  
Carbon Fibres ◽  
Ferric Ions ◽  
Before And After ◽  
Interlaminar Shear

Polypyrrole (PPy) was deposited on carbon fibres via the oxidation-polymerization of pyrrole (Py) with ferric ions. These PPy-deposited carbon fibres were then made into composite boards with epoxy resin. The interfacial bonding between carbon fibre and epoxy resin was evaluated by measuring the interlaminar shear strength (ILSS), tensile strength before and after impact (TAI), and flexural strength. Experimental results show that deposition of PPy can improve the ILSS, tensile strength, and flexural strength. Furthermore, TAI is also reduced by the deposition of PPy. The interfacial bonding was the highest when the carbon fibre was immersed in 20 wt% FeCl3(aq) and then reacted with 0.5 M Py in acetonitrile for 20 min.

Studying the mechanical properties of composites made of Kenaf-Nylon 66 fabric, silica nanoparticles, and epoxy resin

2014 ◽  
Vol 37 (3) ◽  
pp. 674-683 ◽  
Author(s):  
Masoud Alizadeh ◽  
Farshad Lohrasby ◽  
Ramin Khajavi ◽  
Naser Kordani ◽  
Hamid Reza Baharvandi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Silica Nanoparticles ◽  
Nylon 66 ◽  
Properties Of Composites

Properties of Second Life Carbon Fibre Reinforced Polymers

2017 ◽  
Vol 742 ◽  
pp. 562-567
Author(s):  
Frank Manis ◽  
Maren Schmieg ◽  
Michael Sauer ◽  
Klaus Drechsler
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Carbon Fibre ◽  
Glass Fibre ◽  
Second Life ◽  
Carbon Fibres ◽  
High Alloy ◽  
Reinforced Polymers ◽  
Carbon Fibre Reinforced Polymers ◽  
Alloy Steels

In this study different materials made out of cut-off as well as reclained carbon fibres (rCF) are described and compared. For this benchmark nonwovens, compounds, SMC, BMC, as well as standard lightweight materials like high alloy steels, aluminium and magnesium are taken into account. Specific mechanical properties like modulus and tensile strength are used to show the lightweight potential of recycled carbon fibre materials in ashby charts. It is shown that rCF products can substitute glass fibre applications and are also comparable to metals and alloys.

Characterisation of carbon fibres recycled from carbon fibre/epoxy resin composites using supercritical n-propanol

2009 ◽  
Vol 69 (2) ◽  
pp. 192-198 ◽  
Author(s):  
G JIANG ◽  
S PICKERING ◽  
E LESTER ◽  
T TURNER ◽  
K WONG ◽  
...  
Keyword(s):  
Carbon Fibre ◽  
Epoxy Resin ◽  
Resin Composites ◽  
Carbon Fibres ◽  
Epoxy Resin Composites

Mechanical properties of composites made of hybrid fabric impregnated with silica nanoparticles and epoxy resin

2017 ◽  
Vol 31 (26) ◽  
pp. 1750235
Author(s):  
N. Kordani ◽  
M. Alizadeh ◽  
F. Lohrasby ◽  
R. Khajavi ◽  
H. R. Baharvandi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Natural Fibers ◽  
Shear Thickening ◽  
Silica Particles ◽  
Nano Silica ◽  
Shear Thickening Fluid ◽  
Synthetic Fibers ◽  
Hybrid Fabric ◽  
Properties Of Composites

In this study, the mechanical properties of composites will be examined which were made from Kenaf and hybrid fabric with a simple structure that was coated with epoxy resin and nano silica particles. This fabric cotton has a different situation in terms of yarn score and the type of fiber that is used in textiles. Nano silica particles of 200 nm, polyethylene glycol with 200 molecular weights and ethanol with mechanical weight molecular with ratio of 6:1 will be mixed. Suspension of 60% was chosen according to the silica particles. The D6264 standard test for concentrated force was carried out through the cone edge to determine the strength of each of the samples. Increasing of resistance against penetration in the Kenaf samples from the raw until impregnated with the shear thickening fluid is less than the hybrid samples. Slippage of the fibers with the change of round edge indenter to cone edge indenter has changed. Penetration by cone edge to the cloth is done with lower force and it shows the effect of slippage of fibers on the resistance of the penetration. Samples impregnated with the shear thickening fluid in comparison with epoxy resin have lower resistance. Slippage of natural fibers in comparison with synthetic fibers is lower and on the other hand the average of friction between fibers in the natural fibers is more than synthetic fibers.

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