Effect of plasma treatment and electron beam radiations on the strength of nanofilled adhesive-bonded joints

2010 ◽  
Vol 50 (8) ◽  
pp. 1505-1511 ◽  
Author(s):  
H.M.S. Iqbal ◽  
S. Bhowmik ◽  
J.A. Poulis ◽  
R. Benedictus
Keyword(s):  
Electron Beam ◽  
Plasma Treatment ◽  
Bonded Joints ◽  
Adhesive Bonded Joints

Effect of Cold Plasma Treatment on Surface Roughness and Bonding Strength of Polymeric Substrates

2014 ◽  
Vol 611-612 ◽  
pp. 1484-1493 ◽  
Author(s):  
Chiara Mandolfino ◽  
Enrico Lertora ◽  
Carla Gambaro
Keyword(s):  
Surface Roughness ◽  
Plasma Treatment ◽  
Bonded Joints ◽  
Plasma Process ◽  
Adhesive Properties ◽  
Low Surface Energy ◽  
Lap Shear ◽  
General Terms ◽  
Polymeric Substrates ◽  
Adhesive Bonded Joints

For an effective application of polymers, it is essential to have good adhesion behaviour to ensure good mechanical properties and durable components. Unfortunately, in general terms, polymers are characterized by high chemical inertness, which leads to very low surface energy values and, consequently, poor adhesive properties; this is particularly true for polyolefins. In this study, the effects of low pressure plasma treatment on surface roughness of polyethylene and polypropylene samples and on shear properties of adhesive bonded joints based on these substrates have been investigated. In particular, the optimization of three plasma process parameters, exposure time, voltage and working gas, were studied performing roughness measurement, contact angle evaluation and lap-shear tests. The experimental results show that the optimized plasma process may remarkably change the surface morphology, increasing wettability properties of the surfaces and shear strength of the bonded joints. These good properties remain almost unchanged even after some days of storage in the laboratory.

scholarly journals Effect of Carbon Black Nanofiller on Adhesion Properties of SBS Rubber Surfaces Treated by Low-Pressure Plasma

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 616
Author(s):  
Jacek Tyczkowski ◽  
Jacek Balcerzak ◽  
Jan Sielski ◽  
Iwona Krawczyk-Kłys
Keyword(s):  
Carbon Black ◽  
Plasma Treatment ◽  
Photoelectron Spectroscopy ◽  
Peel Test ◽  
Low Pressure ◽  
Peel Strength ◽  
Bonded Joints ◽  
Adhesion Properties ◽  
Before And After ◽  
Adhesive Bonded Joints

Studies on the surface modification of commercial styrene-butadiene-styrene (SBS) rubber with different carbon black (CB) nanofiller content (10–80 parts per hundred parts of rubber (phr)) performed by low-pressure oxygen plasma are presented in this paper. The adhesion properties of the rubber were determined by the peel test for adhesive-bonded joints prepared with a water-based polyurethane (PU) adhesive. The chemical structure and morphology of the SBS rubber surface before and after plasma treatment were investigated by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), respectively. The peel tests showed that the plasma treatment significantly improved the strength of adhesive-bonded joints in the entire range of CB tested, revealing a clear maximum for approximately 50 phr of CB. It was also found that as a result of plasma treatment, functional groups that are responsible for the reactions with the PU adhesive, such as C−OH and C=O, were formed, and their concentration, similar to the peel strength, showed maximum values for approximately 50 phr CB. The occurrence of these maxima was explained using the bound rubber model.

scholarly journals Overview of disbonding technologies for adhesive bonded joints

2016 ◽  
Vol 93 (10) ◽  
pp. 737-755 ◽  
Author(s):  
A. Hutchinson ◽  
Y. Liu ◽  
Y. Lu
Keyword(s):  
Bonded Joints ◽  
Adhesive Bonded Joints
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