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Multi Materials Fusion Bonding: Effect of Chemical Treatments on the Adhesion

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Multi Materials Fusion Bonding: Effect of Chemical Treatments on the Adhesion Strength

 

The purpose of this work is to join metals and thermoplastics without the use of an extraneous adhesive. Surface treatments (zinc phosphatation, plasma treatment) promote interfacial bonding through reactive molecules on the surface of steel; ammonium persulfate is used to add carbonyl groups on thermoplastics. Thermoplastic polymers namely polypropylene, polyamide and polyethylene were tested to investigate the effect of polar groups on the surface energy and adhesion. The bonding strength of polymer-metal adhesion was evaluated by single lap shear joint test. A correlation between contact angle and bond strength according to the polymer was found to be directly proportional. This indicates that polar groups on the polymer/steel surface have a key role in the adhesion of theses hybrid structures.  

  

 

Authors: Cynthia Oueiny, Benoit Cosson, Chung-Hae Park

 

Conference: SAMPE Europe Conference 2016

SKU/Code: Euro2016-61

Pages: 8

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