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Jute

Description

General

Bast fiber. One of the cheapest natural fibres. Poor resistance against moisture, brittles under influence of light, absorbs paint easily. Jute consists of very short elementary fibers (lenth 0, 7-6 mm) wich are stuck together by lignin to form long brittle fibers (length of 300-400 mm).

Properties

Chemical properties

Minimum value Maximum value Unit Sources
%
12 35 % Idemat 2003

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
V
Ohm.mm²/m

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
MPa
MPa
MPa
1440 1460 kg/m³ Idemat 2003
0.8 2 % Idemat 2003
MPa
J/cm
MPa
453 550 MPa Idemat 2003
MPa
MPa
300 780 MPa Idemat 2003

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
°C
°C
J/kg.K
W/m.K
e-6/K

Environment

mPt
Pt
mELU
MJ/MJ
MJ
kg
kg
Jute fiber production takes mainly place in India, Bangladesh, China and Thailand. The jute plant can be harvested after four months growing. On average the jute plant is composed of 12, 5% leaves, 48% wood and 39, 5 % ribbon. Jute fibers are gained from the ribbon by retting the the bast in water for about 5 to 22 days. Some pesticides and fertilisers are applied. on the jute fields, but jute cultivation causes no soil erosion, because of the short growing period and crop rotation with rice and potatoes. During the retting process the water is polluted with organic substances, which causes depletion.
Idemat 2003, Design for Sustainability, Delft University of Technology

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