Stepwise growth of melamine-based dendrimers onto carbon fibers and the effects on interfacial properties of epoxy composites

2017 ◽  
Vol 138 ◽  
pp. 144-150 ◽  
Author(s):  
Min Zhao ◽  
Linghui Meng ◽  
Lichun Ma ◽  
Guangshun Wu ◽  
Fei Xie ◽  
...  
2013 ◽  
Vol 364 ◽  
pp. 706-710
Author(s):  
Ling Cong Li ◽  
Li Li Wang ◽  
Hua Hao ◽  
Hui Ling ◽  
Hong Jie Sun ◽  
...  

The purpose of this paper is to comparatively study the surface characteristics of domestic and Toray T700 carbon fibers (T700-CFs) and the interfacial properties of their reinforced epoxy composites. The surface roughness and surface energy of the fibers were characterized by scanning electron microscope (SEM) and dynamic contact angle analysis (DCAA). The surface chemistry analysis of the fibers was carried out by using X-ray photoelectron spectroscopy (XPS). The interfacial properties of the T700-CF/epoxy composites were studied by testing the interlaminar shear strength (ILSS), observing SEM images of composites profiles and calculating the interfacial adhesion factors from dynamic mechanical thermal analysis (DMTA) data. The results show that domestic T700-CFs have a better interfacial adhesion to epoxy matrix due to its higher surface roughness, chemical activity and surface energy than Toray T700-CFs.


2007 ◽  
Vol 42 (15) ◽  
pp. 6347-6352 ◽  
Author(s):  
Yu Yang ◽  
Chunxiang Lu ◽  
Xiaolei Su ◽  
Xinkui Wang

2015 ◽  
Vol 15 (12) ◽  
pp. 9807-9811 ◽  
Author(s):  
Qingbo Zhang ◽  
Dawei Jiang ◽  
Li Liu ◽  
Yudong Huang ◽  
Jun Long ◽  
...  

2021 ◽  
Vol 202 ◽  
pp. 108564
Author(s):  
Melissa K. Stanfield ◽  
Daniel J. Eyckens ◽  
Jérôme Médard ◽  
Philippe Decorse ◽  
Jean Pinson ◽  
...  

2020 ◽  
Vol 184 ◽  
pp. 109888
Author(s):  
Abolfazl Alizadeh Sahraei ◽  
Abdol Hadi Mokarizadeh ◽  
Masumeh Foroutan ◽  
Daniel George ◽  
Denis Rodrigue ◽  
...  

2020 ◽  
Vol 40 (5) ◽  
pp. 415-420 ◽  
Author(s):  
Yasin Altin ◽  
Hazal Yilmaz ◽  
Omer Faruk Unsal ◽  
Ayse Celik Bedeloglu

AbstractThe interfacial interaction between the fiber and matrix is the most important factor which influences the performance of the carbon fiber-epoxy composites. In this study, the graphitic surface of the carbon fibers was modified with graphene oxide nanomaterials by using a spray coating technique which is an easy, cheap, and quick method. The carbon fiber-reinforced epoxy matrix composites were prepared by hand layup technique using neat carbon fibers and 0.5, 1 and 2% by weight graphene oxide (GO) modified carbon fibers. As a result of SEM analysis, it was observed that GO particles were homogeneously coated on the surface of the carbon fibers. Furthermore, Young's modulus increased from 35.14 to 43.40 GPa, tensile strength increased from 436 to 672 MPa, and the elongation at break was maintained around 2% even in only 2% GO addition.


2009 ◽  
Vol 79-82 ◽  
pp. 497-500 ◽  
Author(s):  
Lei Chen ◽  
Zhi Wei Xu ◽  
Jia Lu Li ◽  
Xiao Qing Wu ◽  
Li Chen

The γ-ray co-irradiation method was employed to study the effect of diethanolamine modification on the surface of carbon fiber (CF) and the interfacial properties of CF/epoxy composites. Compared with the original carbon fiber, the surface of modified fibers became rougher. The amount of oxygen-containing functional groups was increased and the nitrogen element was detected after irradiation grafting. The interlaminar shear strength (ILSS) of composites reinforced by carbon fibers irradiated in diethanolamine solution was increased and then decreased as the irradiation dose increased. The ILSS of CF/epoxy composites was enhanced by 16.1% at 200kGy dose, compared with that of untreated one. The γ-ray irradiation grafting is expected to be a promising method for the industrialized modification of carbon fibers.


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