| Autor: |
Brigitte Henri-Mazeaud, E Tomasetti, Bernard Nysten, Roger Legras |
| Rok vydání: |
2000 |
| Předmět: |
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| Zdroj: |
Polymer. 41:6597-6602 |
| ISSN: |
0032-3861 |
| DOI: |
10.1016/s0032-3861(99)00885-x |
| Popis: |
Polypropylene (PP) and polypropylene/(ethylene-propylene) copolymer (EP) blend (PP/EP) injection-moulded plates were painted with a chlorinated polypropylene (CPO) based adhesion promoter. Three-point bending and crosscut adhesion tests performed on these plates show that adherence is better on PP/EP than on PP. X-ray photoelectron spectroscopy (XPS) and force modulation microscopy (FMM) analyses were performed on the failure surface obtained after the three-point bending test. XPS shows that the Cl atomic fraction is less than 0.5% on the polymer side and close to 4% on the paint side indicating that the fracture is located at the CPO-polymer interface. The analysis of the PPEP surface by FMM reveals that paint debonding occurs with plastic deformations located into the EP elastomer phase. The magnitude of the plastic deformation is dependent on the depth location of the nodules. The adherence improvement induced by the presence of EP nodules can thus be explained by energy dissipation occurring during EP deformation. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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