Fibre Extraction from Oilseed Flax Straw for Various Technical Applications

Abstract

Cultivated primarily for seeds and oil, oilseed flax can be evaluated as a source of natural fibre that can be extracted from straw. However, due to the lack of comprehensive processing of the stem mass, they remain in the fields and are burned. The aim of this research is to study the possibility of obtaining fibre from oilseed flax straw by mechanical processing and to study the technological properties and suitability of the resulting fibre for technical use. In the course of the work, the structural and technological properties of straw samples of 4 varieties of oilseed flax were studied. The chemical composition was studied and fibre samples were obtained according to the scheme consisting of crushing, scutching, milling and shaking machine. Optimal modes of fibre extraction were established by developing a mathematical model of the process. The results of the work show that the fibre of oilseed flax is comparable to textile flax in terms of physical and mechanical parameters, which makes it suitable for technical use.