Natural Hard Fibers of the North American Continent. Statistical Correlations of Physical and Mechanical Properties of Lechuguilla (Agave lechuguilla) Fibers

Abstract

The present trend in the USA and elsewhere is to find industlial applications for renewable raw materials. In our research program to use natural hard fibers in the woven fabric of composite materials, we have initiated a characteriza tion study of lechuguilla fibers obtained from the plant Agave lechuguilla, which grows in a wild form in the arid and semiarid lands of the North American continent, particularly in the Chihuahuan desert. These fibers were characterized in their physical properties such as porosity, density, diameter, and length distribution and in their mechanical properties such as tenacity, percent elongation, and initial modulus. This characterization was carried out statistically for the bases and the tips of the fibers, although in some cases the intermediate segment was also included. The results obtained indicate that the fiber tips are of greater tenacity, initial modulus, and density than the fiber bases. Additionally, the physical and the mechanical data show that lechuguilla fibers are comparable to glass fibers and therefore are potentially an acceptable candidate for applications in composite materials.

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References

Barkakaty, B.C. , Some Structural Aspects of Sisal Fibers, J. Appl. Polym. Sci. 20, 2921--2940 (1976).

Centro de Investigacion en Quimica Aplicada, Saltillo, Coahuila, Mexico , "Sociology Department Studies ," 1978.

Chaudri, M.A. and Jamil, N.A. , A Study of Physical Properties of Indigenous Sisal Fibers Under Various Conditions, Pakistan J. Sci. Ind. Res. 15, 405 (1972).

Kirk, R.E. and Othmer, D.F. , "Enciclopedia de Tecnologia Quimica," Vol. VIII, Union Tipografica Editorial-Hispanoamericana, Mexico, D. F., 1955, p. 143.

Kulshreshtha, A.K. , Chudasama, V.P. , and Dweltz, N.E. , Analysis of Cotton Fiber Maturity. Part 2. Glycerol Retention Value of Cotton, J. Appl. Polym. Sci. 20, 2329-2338 (1976 ).

Miller, I. and Freund, J.E. , Probabilidad y Estadistica para Ingenieros, Reverte Mexicana, S. A., Mexico, D. F., 1973, Chapter 8. (Spanish translation of "Probability and Statistics for Engineers," Prentice-Hall, Inc., Englewood, N. J.)

Ray, P.K. , Chakravarty, A.C. , and Bandyopadhyay, S.B. , Fine Structure and Mechanical Properties of Jute Differently Dried After Retting, J. Appl. Polym. Sci. 20, 1765-1767 (1976 ).