Surface Energy Characterization of Three Partially Hydrolyzed Hardwood Species Determined by Dynamic Contact Angle Analysis

2011 ◽  
Vol 87 (4) ◽  
pp. 353-365 ◽  
Author(s):  
T. Eric McConnell ◽  
Sheldon Q. Shi
Keyword(s):  
Contact Angle ◽  
Surface Energy ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Hardwood Species ◽  
Contact Angle Analysis

Influence of argon plasma treatment on carbon fibre reinforced high performance thermoplastic composite

2020 ◽  
pp. 095400832095706
Author(s):  
Jennifer Vinodhini ◽  
K Sudheendra ◽  
Meera Balachandran ◽  
Shantanu Bhowmik
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Surface Energy ◽  
Carbon Fibre ◽  
Plasma Treatment ◽  
Dynamic Contact Angle ◽  
Argon Plasma ◽  
Dynamic Contact ◽  
Resin Matrix ◽  
Surface Modified

This investigation highlights argon plasma treatment on Poly-aryl-ether-ketone (PAEK) and carbon fibre (CF) surface. The PAEK and CF surface is modified for 300 sec and the change in physiochemical and mechanical properties were investigated through Fourier Transform Infrared Spectroscopy (FTIR), Dynamic Contact angle, Atomic Force Microscope (AFM) and Tensile Test. FTIR of surface modified PAEK revealed the stretching of C-H, C=C and C=O functional groups. A reversal phenomenon of increased surface energy was observed through dynamic contact angle study of CF and to further examine the surface energy effect, AFM analysis on CF was carried out revealing increased roughness with numerous micro dents formation. PAEK/CF composite samples were fabricated through compression moulding technique. The change in mechanical properties due to surface modification were analysed through Tensile testing on surface modified PAEK/CF sample and untreated PAEK/CF samples. The surface treated PAEK/CF showed increased tensile strength than untreated PAEK/CF. The argon plasma treatment helped in creating depth striations that lead to better interlocking of resin matrix with the reinforced CF. The fracture surface was examined through Filed Emission Scanning Electron Microscope (FE-SEM) wherein the Micrographs of the tensile tested samples indicated failure of composite due to fibre breakage.

The influence of proteins on calcium phosphate deposition over titanium implants studied by dynamic contact angle analysis and XPS

1997 ◽  
Vol 10 (2) ◽  
pp. 95-104 ◽  
Author(s):  
Ana Paula Valagão Amadeu do Serro ◽  
Anabela Catarino Fernandes ◽  
Benilde de Jesus ◽  
Vieira Saramago
Keyword(s):  
Contact Angle ◽  
Calcium Phosphate ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Titanium Implants ◽  
Contact Angle Analysis

scholarly journals Dynamics on Molecular Films. Surface Characterization of Monolayers by the Wilhelmy-type Dynamic Contact Angle Measurement.

Hyomen Kagaku ◽  
2000 ◽  
Vol 21 (10) ◽  
pp. 643-650
Author(s):  
Koji ABE ◽  
Satomi OHNISHI ◽  
Haruhisa AKIYAMA ◽  
Hiroshi TAKIGUCHI ◽  
Kaoru TAMADA
Keyword(s):  
Contact Angle ◽  
Surface Characterization ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Contact Angle Measurement ◽  
Angle Measurement ◽  
Molecular Films

Effect of Plasticizer of Sizing Agent on the Surface of Carbon Fibers and Interface of its Composites

2011 ◽  
Vol 337 ◽  
pp. 10-15 ◽  
Author(s):  
Huan Xia Zhang ◽  
Amin Cao ◽  
Yong Kang Luo ◽  
Li Wei
Keyword(s):  
Contact Angle ◽  
Carbon Fibers ◽  
Photoelectron Spectroscopy ◽  
Interfacial Shear Strength ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Interfacial Shear ◽  
X Ray ◽  
Physical Changes ◽  
Contact Angle Analysis

In this work, carbon fibers were sized with different plasticizer of sizing agent in order to improve the performances of carbon fibers and the interface of carbon fibers composites. The chemical and physical changes induced by the treatments on carbon fibers surface are examined using dynamic contact angle analysis test(DCAT) , X-ray photoelectron spectroscopy (XPS). The interfacial shear strength (IFSS) of CF/EP composites are analysised by micro-droplet test. At the same time, the wear resistance was also studied in order to understand the effect of the plasticizer of sizing agent on the carbon fibers. The study shows that the 3# sized carbon fiber has the better wetting and surface energy. XPS results reveal that the 3# samples show a significant increase in oxygen-containing groups, such as–C–OH, -COOH, -C–O–C- and -COOR. 3#sizing agent also show better interface adhesion between fibers and matrix and has better wear resistant properties.

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