The Effect of Different Surface Pretreatment Methods on Nano-adhesive Application in High Strength Steel and Aluminum Bonding

Autor: Nabil Anagreh, Ahmed Mousa Al Essa, Sami Massadeh, Amin Al Robaidi
Rok vydání: 2011
Předmět:
Zdroj: Journal of Adhesion Science and Technology. 25:1725-1746
ISSN: 1568-5616
0169-4243
Popis: Epoxy adhesives (single and two components) modified with SiO2 nano-particles were used in this investigation to glue aluminum alloy and also two types of high strength steel (dip-galvanized steel DP 600 and micro-alloyed steel ZStE340). To improve the adhesion between metal surfaces and adhesives, the metal surfaces were pretreated with: a self-indicating pretreatment (SIP*); corundum blasting; corundum blasting + a SIP coating; and a Pyrosil® treatment + SurALink® primer (PG 15 for epoxy adhesive). A single-lap shear tension test, done in accordance to DIN EN 1465, was used to determine the adhesive strength. Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray spectroscopy (EDX) analysis were used to analyze fractures that took place in the samples. The results showed that the adhesion strength of glued samples, containing the nano-particles modified adhesive, had significantly higher strength than unmodified ones. Pretreatment of the metal surfaces affected the adhesion, using nano-adhesives...
Databáze: OpenAIRE