Impact of environmental agents on non-woven polylactide/natural rubber agrofiber

Yulia Tertyshnaya,Anatoliy Popov,Maksim Zakharov,Alina Ivanitskikh,S Belousov,S Roshchupkin

doi:10.1051/e3sconf/202128507034

Yulia Tertyshnaya, Anatoliy Popov + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202128507034

Copy DOI

Abstract

In the work an eco-friendly non-woven fiber made of polylactide and natural rubber with a rubber content from 0 to 15 wt.% was obtained by electrospinning. The influence of distilled water and UV irradiation on the agrofibers has been investigated. The water sorption test showed that the addition of natural rubber into the polylactide matrix does not significantly affect the degree of water absorption of the fibrous materials, which is in the range of 49-50.6%. Thermal characteristics after 180 days of degradation in distilled water at 22±2 oC and UV irradiation at a wavelength of 365 nm during 100 hours were determined using the differential scanning calorimetry. Changes in the values for glass transition and melting temperatures, and the degree of crystallinity were determined.

Highlights

Electrospun non-woven fibers have shown significant potential in a number of applications: chemical sensors, tissue engineering, seed mats, filtration systems
The current study is to investigate the influence of environmental factors such as water and UV irradiation on degradation of PLA/NR fiber
The experiment showed that the addition of natural rubber has almost no effect on the degree of water absorption W (Fig. 2)

Summary

Introduction

Electrospun non-woven fibers have shown significant potential in a number of applications: chemical sensors, tissue engineering, seed mats, filtration systems. Electrospinning is one of the promising methods for obtaining nanometer- and micrometerscale fibers. The electrospinning is based on a combination of mechanical and electrostatic forces applied to a polymer solution or melt orientated in an electric field. Polylactide (PLA) is polyester obtained from renewable raw materials. Lactic acid is released during fermentation of waste vegetable raw materials such as corn, beets, cereals. Polylactide is obtained from lactic acid by polymerization [1,2,3]. Crystalline PLA has properties similar to those of known polymers, such as polypropylene and polyethylene, but PLA has advantages: biocompatibility and biodegradability [4,5,6,7]. Under the influence of environmental agents, PLA decomposes to carbon dioxide and water

Methods

Results

Conclusion