On the Surface Tension and its Temperature Variation in Film-Forming Polymers
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in The Journal of Adhesion
- Vol. 9 (3) , 175-184
- https://doi.org/10.1080/00218467808075112
Abstract
A thermal gradient bar has been used for convenient measurements of γc and dγc/dT in complex polymers used as film-formers. The technique yields both γc and its temperature variation in one experimental sequence well suited for rapid, routine applications. Surface tension data have been obtained for a styrene-acrylic terpolymer, and these have also been used to characterize the compatibility of external plasticizers for the polymer. The surface tension approach has shown that glyceryl dibenzoate, though compatible with the polymer at temperatures above ∼70°C becomes incompatible at use temperatures, and exudes to the polymer film surface. Measurements of moisture sensitivity in plasticized polymer samples have confirmed the incompatibility and illustrated one of the applications to which the gradient bar and its data generation potential may be put.Keywords
This publication has 10 references indexed in Scilit:
- Surface modification of polymers and practical adhesionPolymer Engineering & Science, 1977
- Solubility parametersChemical Reviews, 1975
- Contact angles and their temperature dependence: thermodynamic status, measurement, interpretation and applicationAdvances in Colloid and Interface Science, 1974
- Theory of the effect of phase transition on liquid surface tensionJournal of Colloid and Interface Science, 1971
- The surface tension of polyatomic liquids and the principle of corresponding statesThe Journal of Physical Chemistry, 1970
- Surface Activity at Organic Liquid-Air InterfacesPublished by American Chemical Society (ACS) ,1964
- WETTING PROPERTIES OF ACRYLIC AND METHACRYLIC POLYMERS CONTAINING FLUORINATED SIDE CHAINSThe Journal of Physical Chemistry, 1962
- The Thermal Incline: A Means of Measuring Viscosities of Plastisols at Elevated TemperaturesTransactions of the Society of Rheology, 1957
- The spreading of liquids on low-energy surfaces. II. Modified tetrafluoroethylene polymersJournal of Colloid Science, 1952
- VI.—The variation of surface tension with temperature and some related functionsJournal of the Chemical Society, Transactions, 1924