| Abstract: | It was shown that the mechanism of deformation of films of rigid crosslinked polymers (polyester, polyester imide, polyester cyanurate) is appreciably different from the deformation mechanism of free films: a forced highly elastic deformation takes place, sometimes even at an early stage, while the free films deform reversibly up to rupture. Explanations have been suggested for the characteristic features of deformation of films studied on a substrate. The forced highly elastic deformation process is related to the effect of orienting reinforcement of films. An increase in the adhesion strength in the film-substrate system during the deformation has been shown, and an explanation of this effect has been proposed.V. I. Lenin All-Union Electrotechnical Institute, Moscow. Translated from Mekhanika Polimerov, Vol. 9, No. 3, pp. 526–530, May, 1973. |
