Polymer-Solid Interface Connectivity and Adhesion: Design of a Bio-Based Pressure Sensitive Adhesive
| Autor: | Shana P. Bunker, Richard P. Wool |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Materials science Bond strength Interface (computing) Surfaces and Interfaces General Chemistry Polymer Adhesion Surfaces Coatings and Films chemistry.chemical_compound chemistry Mechanics of Materials Percolation Phase (matter) Functional group Polymer chemistry Materials Chemistry Adhesive Composite material |
| Zdroj: | The Journal of Adhesion. 83:907-926 |
| ISSN: | 1545-5823 0021-8464 |
| DOI: | 10.1080/00218460701699773 |
| Popis: | Adhesion at polymer-solid interfaces was explored for a new bio-based pressure sensitive adhesive (PSA) in terms of sticker groups, φX, on the polymer phase, receptor groups, φY, on the solid surface, and the bond strength of the sticker-receptor X-Y acid-base interaction, χ. The polymer-solid interface restructuring models of Gong and Lee et al. were extended with new percolation models of entanglements and interface strength to determine the optimal sticker group concentration, φ∗X. For the general case where φY and χ are constant, it is predicted that when φX φ∗X, failure occurs cohesively in a polymer-polymer interface adjacent to the solid and the strength decreases as G1c ∼ φ∗X/φX. The switch from adhesive to cohesive failure can be understood in terms of the changes in the chain conformations of the adhered chains and their decreasing interpenetrati... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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