Improvement of shear strength of aluminium-polypropylene lap joints by grafting maleic anhydride onto polypropylene 

 -  International Journal of Adhesion & Adhesives, 27(3), p.175-187, 2007 .
<br/><br/> The effect of the amount of maleic anhydride-grafted polypropylene (PP-g-MAH)in polypropylene (PP)on lap shear strength of adhesive-bonded aluminium sheet/PP/aluminium sheet has been investigated after surface pretreatment of the aluminium sheets by sandpaper grinding and by g-aminopropyltriethoxy silane solution after sandpaper grinding. For pure PP low lap shear strengths, 3.44 and 4.57 MPa, respectively, are obtained and fracture with almost no plastic deformation at the fracture surface is observed. Modification of PP by addition of 5-30wt 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ALUMINIUM AND ALLOYS<br/>INTERPHASES<br/>LAP SHEAR<br/>POLYPROPYLENE