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Enhancement of adhesive bonding strength: Surface roughness and wettability characterisations
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نویسنده
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zain n.m. ,ahmad s.h. ,ali e.s.
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منبع
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journal of mechanical engineering - 2014 - دوره : 11 - شماره : 1 - صفحه:55 -73
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چکیده
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In order to enhance the adhesive bonding,two different methods of surface treatments have been carried out on aluminum alloy 2024-t3 substrate i.e. alkaline etching and silane treatment. the topology and surface chemical analyses of treated alloy were investigated by afm and xps,respectively. the effect of surface treatments on the wettability and adhesive bonding strength were also studied. three different formulations of polyurethane adhesive by varying the nco: oh ratio that were prepared from the reaction of green polycaprolactone (pcl) polyol and diisocyanate. silane treatment showed better wettability and adhesive bonding strength compared to alkaline etching surface treatment. © 2014 faculty of mechanical engineering.
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کلیدواژه
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Adhesive strength; Alkaline etching; Polyurethane adhesive; Silane treatment; Wettability
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آدرس
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faculty of science and technology,national university of malaysia,bangi,malaysia,department of fabrication and joining,university of kuala lumpur,malaysia france institutes,bandar baru bangi, Malaysia, faculty of science and technology,national university of malaysia, Malaysia, faculty of science and technology,islamic science university of malaysia,bandar baru nilai, Malaysia
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Authors
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