AFM Studies on the Effect of Crystalline Interphase on Adhesion of Polyurethane Thin Film to Al Substrate

Jang Soon Kim; Ok Hyoung Lee; Yun Soo Lim

doi:10.4028/www.scientific.net/MSF.658.65

Paper Titles

Synthesis and Characterization of Dumbbell Shaped Calcium Carbonate Induced by Lignin
p.49

Fixed Bed Column Filled with Rice Husk for the Removal of Cu (II) from Aqueous Solution
p.53

Study on the Energy Conversion from the Dynamic Load of Vehicles on the Road Using Piezoelectric Materials
p.57

Effect of Matrix on Phase Formation of Nanometer TiO₂ Film
p.61

AFM Studies on the Effect of Crystalline Interphase on Adhesion of Polyurethane Thin Film to Al Substrate
p.65

Lead Based Multi-Alloy Applied to Anode of Zinc Electrowinning
p.69

Effect of Silicon Carbide Susceptor and Nickel Catalyst Content on Microwave Enhanced Thermal Conversion of Glycerol Waste
p.73

Synthesis of Nickel-Coated FeS₂ Particles as Active Material for Li/FeS₂ Cell by Mechanical Alloying
p.77

Optical and Electrical Properties of Large Area SnO₂: F Thin Films by Spray Pyrolysis
p.81

HomeMaterials Science ForumMaterials Science Forum Vol. 658AFM Studies on the Effect of Crystalline...

AFM Studies on the Effect of Crystalline Interphase on Adhesion of Polyurethane Thin Film to Al Substrate

Abstract:

Polyurethanes crystallized at the aluminum surface, but the crystalline interphase varied with polyol OH number. Early stage of spherulite formation was characterized using AFM after removing amorphous polyurethane. The crystallite shapes of polyurethanes were correlated with the bond strength measured from indentation debonding. Interestingly, the samples involving non-specific shape of crystallites displayed high bond strength, while the polyurethanes with rod-like crystallite poorly adhered to aluminum substrate. Although crystallite shape did not unequivocally relate to bond strength, the results propose that there is a probable correlation.