Methods are described for determining the binder and fiber contents of nonwoven fabrics bonded with a polyester binder and containing either carbon fibers or a blend of carbon and polyester fibers. The amounts of fiber and binder in a nonwoven made with only carbon fibers are determined by weighing the fibers after removing the binder with concentrated sulfuric acid. Analysis of a nonwoven containing a blend of carbon and polyester fibers is accomplished by removing the binder with 70% sulfuric acid and weighing the total fibers. Then the fibers are treated with concentrated sulfuric acid and the carbon fibers are weighed.
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References
1.
Affeldt, H., and Cheesman, G.C.N. , Determination of Binder Content in Nonwovens by Selected Methods, in "Edana Index 81 (Amsterdam) Congress Papers, Session 5, Property Measurements," paper no. 6, vol. 5, 1981, pp. 1-11.
2.
Helbling, A.M. , Qualitative and Quantitative Analysis of Binders Currently Used on Nonwovens, in "Edana Index 81 (Amsterdam) Congress Papers, Session 5, Property Measurements," paper no. 2, vol. 5, 1-8 1981, pp. 1-8.
3.
Kaczmarek, E. , A Method for the Analysis of Nonwovens, Ind Textile Paris, no. 1028, 645-647 (1973).
4.
Kaczmarek, E. , Jourda, M., and Devillers, N., Method for the Analysis of Nonwovens, Bull. Sci. Inst. Text. Fr.2 (7), 221-235 (1973).
5.
Kantner, G.C. , and Hoey, C.E., Determination of Acrylic Resin Content of Spray-bonded Dacron Fiberfill Nonwoven Battings, Am. Dyest. Rep.51 (12), 37-39 ( 1962).
6.
Kantner, G.C. , and Hoey, C.E., Improved Method for Determination of Acrylic Resin Content of Spray-bonded Polyester Fiberfill Nonwoven Battings , Am. Dyest. Rep.52 (14), 515-516 (1963).
7.
Mong, F.M., and Whyte, M.A., Pyrolysis-Infrared Method for Determination of Percent SBR Binder Add-on in Nonwoven Polyesters, in "Advances in Nonwoven Technology, Tenth Technical Symposium,"1982, pp. 294-309.
8.
Mong, F.M., and Whyte, M.A., Pyrolysis-Infrared Method for Determination of Percent SBR [Styrene-Butadiene Rubber] Binder Add-on in Polyester and Cellulose Type Nonwovens, in "TAPPI Nonwovens Symposium Notes," 1983, pp. 135-151.
9.
Wlochowicz, A. , and Wysocki, M., Use of Infrared Spectroscopy for Quantitative Analysis of Fiber Blend Components, Przeglad Wlok.33 (5), 260-261 (1979).
10.
Zimmer, H., and Schiller, W., Analysis of Needle-felt Floor Coverings Bonded With Binders, Melliand Textilber. Int. 58 (11), 931-934 (1977).
11.
Zimmer, H., and Schiller, W., Analyses of Nonwoven Fabrics Strengthened With Binders, in "Proc. Joint Meeting, Dtsch. Wollforshungsinst. Tech. Hochach. Aachen, 1978," 75, Vortr. Gemeinsamen Tag. Aachener Textilforschungsinst., 4th, 1977, pp. 376-392.
