In Situ SEM Study of the Influence of Degradation of Various Types of Nonwoven Polymer Matrices on Their Morphology and Mechanical Properties
摘要
Abstract
The work presents the results of testing nonwoven fibrous matrices based on poly-L-lactide modified with biopolymers (chitosan and collagen) under in situ stretching in a scanning electron microscope (SEM) chamber operating in the environmental mode. Matrix stress-strain curves and SEM images are obtained simultaneously during uniaxial stretching of the matrices until rupture. The change in the mechanical characteristics of the matrices during degradation is studied depending on the time of their incubation in the culture medium.