Effect of Surface Treatment on the Adhesion Forces between PVC Adhesives and PVC (Pipe - Fitting)
Abstract
This paper aims to improvement adhesion forces between (USA PVC adhesive ,Commercial PVC adhesive and USA CPVC adhesive) and (PVC pipe – PVC fitting)by using surface treatment (mechanical and chemical treatment) for external surface ofpipes and internal surface of fitting with depth (25 mm) . Before pipe adhesion test thesamples put under some environmental conditions such as (at room temperature , at (80oC) for (4 hr) , at (- 2.5 oC) for (4 hr) , at ( tap water) for (48 hr) , at ( 3.5 % NaOH) for(48 hr) and at ( 3.5 % NaCl) for (48 hr) ) .Appearance of results of pipe adhesion testing for (PVC pipe – PVC fitting) withPVC adhesive, without surface treatment only (cleaning), under environmentalconditions , the failure (pulling) happened in adhesion zone (adhesive adhesion failure). As appearance of results of pipe adhesion testing for (PVC pipe – PVC fitting) withPVC adhesive by using surface treatment (surface roughness with abrasive paper andchemical treatment with alcohol), under environmental conditions, the failurehappened in PVC pipe (pipe cohesion failure).
Keywords
Pipe Adhesion Testing, PVC adhesive, CPVC adhesive, PVC Pipe, VC Fitting, Chemical treatment and Mechanical treatmentMetrics