Abstract
A complex of structure-sensitive methods of morphology analysis was applied to study film materials obtained from blends of poly(3-hydroxybutyrate) (PHB) and chitosan (CHT) by pouring from a solution, and nonwoven fibrous materials obtained by the method of electrospinning (ES). It was found that with the addition of CHT to PHB, a heterophase system with a nonequilibrium stressed structure at the interface was formed. This system, if undergone accelerated oxidation and hydrolysis, contributed to the intensification of the growth of microorganisms. On the other hand, the antimicrobial properties of CHT led to inhibition of the biodegradation process. Nonwoven nanofiber materials, since having a large specific surface area of contact with an aggressive agent, demonstrated an increased ability to be thermo-oxidative and for biological degradation in comparison with film materials.
Highlights
Nowadays, much attention in world science is devoted to the creation of a new class of functional biodegradable highly porous materials based on ultrathin and nanoscale fibrous fibrillar structures with a wide variety of specific characteristics: physical, mechanical, sorption, and diffusion properties [1,2,3]
A complex of structure-sensitive methods of morphology analysis was applied to study film materials obtained from blends of poly(3-hydroxybutyrate) (PHB) and chitosan (CHT) by pouring from a solution, and nonwoven fibrous materials obtained by the method of electrospinning (ES)
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Summary
Much attention in world science is devoted to the creation of a new class of functional biodegradable highly porous materials based on ultrathin and nanoscale fibrous fibrillar structures with a wide variety of specific characteristics: physical, mechanical, sorption, and diffusion properties [1,2,3] Such materials, based on synthetic and biopolymers, are widely used in biology, medicine, cell engineering, separation and filtration processes, reinforced composites, electronics, analytics, sensor diagnostics, as eco-sorbents for cleaning the environment from emergency spills of oil products and heavy metal compounds, and in many other innovative applications [4,5,6]. High biocompatibility, controlled biodegradation into environmentally friendly products (carbon dioxide and water), and satisfactory mechanical characteristics make it possible to consider this polymer for the creation of innovative disposable products in food, packaging, medical, and environmental areas [11,16]
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