ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The adhesion of oriented, high-modulus polyethylene-structures to epoxy resins is greatly enhanced by pretreatment with oxidizing acids. For KMnO4/H2O/H2SO4 treatment a maximum increase in adhesion, as determined by pull-out tests, of 600% was found. Chromic and chlorosulphonic acid treatment improves the adhesion with 550% and 300% respectively. Moreover, this improvement was obtained without substantially affecting the mechanical properties. The modulus remained the same, whereas tensile strength decreased by less than 10% after this treatment. By monitoring the changes in surface topography (SEM) and surface composition (X-ray photoelectron spectroscopy) the improvement in adhesion could be related to the introduction of functional oxygen-containing groups, i.e. hydroxyl, carbonyl, carboxyl. Furthermore, at the highest level of adhesion obtained the failure mode changed from interface controlled to shear failure within the polyethylene structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01151252