A Model for the Diffusion of Moisture in Adhesive Joints. Part II: Experimental

Autor:	H. F. Brinson, Didier R. Lefebvre, O. A. Dillard
Rok vydání:	1989
Předmět:	Materials science Diffusion Surfaces and Interfaces General Chemistry Permeation Thermal diffusivity Surfaces Coatings and Films Stress (mechanics) Low-density polyethylene Compressive strength Mechanics of Materials Materials Chemistry Adhesive Composite material Polyimide
Zdroj:	The Journal of Adhesion. 27:19-40
ISSN:	1545-5823 0021-8464
Popis:	The concentration dependence and temperature dependence of the diffusion coefficient, as discussed in Part I, are validated with literature data on poly(styrene) and on poly(vinylacetate). The effect on diffusivity, of a uniaxial tensile stress state and of a biaxial tensile stress state, is measured with permeation tests on stretched poly(ethyleneterephthalate) (PET) films. The influence of semi-crystallinity is briefly discussed. Further, diffusivity measurements under a tensile stress state, under a compressive stress state, and under a pure shear stress state are performed on Ultem® polyimide films, using a modified sorption technique. Good agreement between theoretical predictions and experiment is found. Finally, predictions by the solubility model discussed in Part I are compared with data on low density polyethylene and on Ultem polyimide.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b7f1fb051d273613eedc6a539040ccb3 https://doi.org/10.1080/00218468908050591 Zobrazit plný text záznamu