Effect of Brominated Flame Retardants on the Properties of Acrylonitrile /Vinyl Acetate Copolymer Fibers

Abstract

Two brominated flame-retardant additives, Great Lakes CD-75P (hexabro-mocyc lododecane) and Great Lakes PDBS (a polymer of dibromostyrene ), are introduced into acrylonitrile/vinyl acetate (AN/VA) fibers, and their effects on the fibers' thermal and mechanical properties, morphology, and flammability are investigated. Because the additives influence the viscosity of AN/ VA solution dope, the influence of spinneret diameter on spinning the modified AN/VA fibers is also studied. The results show that the both additives can reduce flammability with little effect on tensile strength but large effect on the breaking elongation.

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References

Blackburn, W. A., and Apperson, C. H., U.S. patent 3 313 867, 1967.

Folksdorf, E., German patent 1036 463, 1958.

Graham, P. R., U.S. patent 2 881 147, 1959.

Japan Kokai Tokkyo Koho, Flame-Retardant Modacrylic Fiber, Japanese patent 6 257 912, 1987.

Lowes, F. J., U.S. patent 3 058 941, 1962.

Lowes, F. J., U.S. patent 3 213 052, 1965.

Lowes, F. J., U.S. patent 3 242 124, 1966.

Lowes, F. J., U.S. patent 3 271 343, 1966.

Lowes, F. J., U.S. patent 3 271 344, 1966.

10.

Nametz, R.C. , Flame-Retarding Synthetic Textile Fibers, Ind. Eng. Chem. 62 (3), 41-53 (1970).

11.

Palethorpe, G., U.S. patent 3 318 978, 1967.

12.

Perri, J. M., German patent 1 221 761, 1966.

13.

Rosser, W.A. , et al., Mechanism of Flame Inhibition, Final Report, Contract no. DA-44-009-ENG-2863 , Department of Agriculture, 1958.

14.

Rosser, W.A. , Wiss, H. , and Miller, J. , "7th Symposium on Combustion," Butterworth's , London, 1959, p. 175.

15.

Tarkington, T. W., and Anderson, N. T., U.S. patent 2 949 432, 1960.

16.

Tsai, J.S. , Inflammability of Modacrylic Fibers, J. Mater. Sci. Lett. 11, 953-955 (1992).

17.

Tsai, J.S. , Selection of Spinneret for Modacrylic Fiber, Part III: Effect of Chlorine Content, J. Mater. Sci. Lett. 12, 548-550 (1993).

18.

Tsai, J.S. , The Crystallization During Wet-Spinning for Modacrylic Fiber, J. Mater. Sci. Lett. 11, 1017-1019 (1992).

19.

Tsai, J.S. , The Effect of Aame-Retardants on the Properties of Acrylic and Modacrylic Fibers, J. Mater. Sci., 28, 1161-1167 (1993).

20.

Tsai, J.S. , Thermal Characterization of Acrylonitrle-Vinylidene Chloride Copolymers for Modacrylic Fibers, J. Mater. Sci. Lett. 10, 881-883 (1991).

21.

Tsai, J.S. , and Wu, C.H. , Selection of Spinneret for Modacrylic Fiber, Part I: Effect of Molecular Weight , J. Mater. Sci. Lett. 12, 523-525 (1993).

22.

U.K. patent, 1 004 889, 1965.

23.

Walczak, Zbigniew K. , "Formation of Synthetic Fiber," Gordon and Breach Science Publishers, NY, 1917, p. 314.

24.

Ziabicki, Andrzej , "Fundamentals of Fiber Formation," John Wiley and Sons, NY, 1976, p. 328.