Sisal

Details: Parent Category: Polymer Fibers; Category: Vegetable Fibers

Description

General

Chemical Composition

Leaf fiber, long glossy stiffe and coarse fiber. Sisal fibers resist seawater and have high mechanical properties which are comparable to those of glass fibers.The structure and properties of these fibers depend on the age of the plant from which it is extracted.

Equivalents

Properties

Chemical properties

	Minimum value	Maximum value	Unit	Sources
Solidification shrinkage			%
Water absorption	11		%

Electrical properties

	Minimum value	Maximum value	Unit	Sources
Breakdown potential			kV/mm
Dielectric loss factor			%
Electrochemical potential			V
Resistivity			Ohm.mm²/m

Manufacturing Properties

	Minimum value	Maximum value	Unit	Sources
Brinell
Janka
Rockwell
Shore
Vickers

Mechanical properties

	Minimum value	Maximum value	Unit	Sources
Bending strength			MPa
Compressive strength			MPa
Creep strength			MPa
Density	1200	1450	kg/m³	Idemat 2003
Elongation	4.3		%
Fatigue failure			MPa
Friction coeficient
Impact strength			J/cm
Shear modulus			MPa
Tensile strength	580	610	MPa	Idemat 2003
Thickness			MPa
Yield strength			MPa
Young's modulus	26000	32000	MPa	Idemat 2003

Optical properties

	Minimum value	Maximum value	Unit	Sources
Refractive index

Thermal properties

	Minimum value	Maximum value	Unit	Sources
Glass temperature			°C
Melting temperature			°C
Service temperature			°C
Specific heat			J/kg.K
Thermal conductivity			W/m.K
Thermal expansion			e-6/K

Environment

Eco Indicator 95		mPt
Eco Indicator 99		Pt
EPS		mELU
Ex(in)/Ex(out)		MJ/MJ
GER		MJ
Raw materials input		kg
Solids		kg
Environmental impact

Environmental remarks
Each 6-12 months the sisal plant can be harvested, after the plant is four years old. Continuous land occupation causes soil erosion.
Sources
Idemat 2003, Design for Sustainability, Delft University of Technology

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