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Studies on Physical Properties of Alkyl Chloride Treated Flax Fibre

M. A. Rahman
Asssciate Professor
Department of Chemistry, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

A. K. Sarke
Assistant Professor
Department of Chemistry, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

Flax fibre was treated with alkyl chlorides and physical properties of treated fibres were studied. The results show that elongation increases with the increased size of the alkyl groups. Dodecyl chloride treated fibres exhibit significant improvement in extensibility (12.5To1. Fibre strength decreases with the increase of reaction time as well as with the increased size of the alkyl groups. The fibre treated with higher alkyl chloride shows more moisture reduction.

Keywords: Flax, Elongation, Bundle Strength, Moisture Regain

Location: Bangladesh Agricultural University, Mymensingh

Start Date:

End Date:

Program Area: Postharvest and Agro-processing

Commodity: Sunhemp

Objectives:

To study the properties of alkyl chlorides treated flax fibres.

Methodology:

Flax fibre was collected from a local farmer in Mymensingh. lt was manually cleaned and dried in the sun. Butyl, amyl, hexyl, heptyl, octyl, decyl and dodecyl chlorides were prepared from their respective alcohols by using thionyl chloride as described by Vogel (1956). Fibre was made alkali with sodium hydroxide solution of 2O% (dv) strength and then treated with alkyl chlorides at 3O^oC for different time periods as suggested by Lorand and Georgi(1937). The elongation, bundle strength of the fibre conditioned for 24 hours in the standard atmosphere (65 ±2% RH; 20 ± 2^oc temperature) were determined by stelometer according to ASTM (1966). The flax fibre was dried at 105^oC to constant weight and exposed to standard atmosphere for 48 hours and weighed again carefully in the conditioned atmosphere. The percent elongation was calculated according to Macmillan and Mukherjee (1950).

Source of Information: J. Agril. Mach. & Mech. 3 11 &21, 1996 :4143 ISSN 1024-4290

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Alkyl chloride treated flax fibre has little effect on fibre strength, but a significant improvement in extensibility and water repelling property has been achieved. These properties may help making a good yam of immense textile value.

Knowledge Management: Journal