Analysis of holding power in the blends of poly(butyl acrylate) with poly(vinylidene fluoride-cohexafluoro acetone)
✍ Scribed by Yoshihisa Kano; Saburo Akiyama; Zenichi Miyagi
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 268 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Shear adhesion of pressure-sensitive adhesive tapes was evaluated for the blends of poly(butyl acrylate) with poly(vinylidene fluoride-co-hexafluoro acetone). The shear adhesion was determined as the function of the shear strain of pressuresensitive adhesive tape against elapsed time under the shear stress. Shear adhesion of the blends increased with increasing poly(vinylidene fluoride-co-hexafluoro acetone) content. Experimental shear strain data were characterized with dynamic viscosity, stress and shear rate plot, and a generalized viscoelastic model of shear adhesion. However, the experimental data cannot be expressed with these viscoelastic properties. It is believed that shear adhesion is influenced by the viscoelastic properties and other factors (e.g., friction coefficient between adhesive and adherend or cohesive strength of adhesive polymer).