A Model for the Oxygen Index of Plasticized Poly(Vinyl Chloride

Abstract

Experimental Oxygen Index data taken on plasticized poly(vinyl chloride) systems which consisted of just poly(vinyl chloride) resin, PVC, and plasticizer are shown to obey a simple two-parameter equation for plasticizer loadings above 15 weight percent. The empirical equation is further tested using data for similar plasticized PVC compounds based on large number of commercial plasticizers and plasticizer blends. One parameter used in the equation is the Oxygen Index of the pure plasticizer determined using a simple modification of the standard Oxygen Index test procedure. The other parameter is shown to have essentially the same value for all the plasticizers tested. A detailed deriva tion of the empirical model is provided using published flame spread models adapted for the Oxygen Index test. Predictions of the Oxygen Index for the two-component (ideal) plasticized PVC compounds are within 2-3% of the ex perimentally measured values.

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References

Fenimore, C.P. , and Martin, F.J. , Combustion and Flame , 10, pp. 135 and 295 (1966).

Issacs, J.L. , Journal of Fire and Flammability, 1, p. 36 (1970 ).

Abbott, C. , Combustion and Flame, 23 , p. 1 (1974).

Morimoto, T. , Mori, T. , and Enomoto, S. , Journal of Applied Polymer Science , 22, p. 1911 (1978);

Kishore, K. , and Mohandas, K. , Combustion Science and Technology, 29, p. 299 ( 1982)

. Ode, H. , and Matsuura, K. , Textile Research Journal, p. 778 (November 1975).

Johnson, P.R. , Journal of Applied Polymer Science , 18, p. 491 (1974).

Macek, A. , Combustion Science and Technology, 21, p. 43

( 1979); Breillat, C. , and Vantelon, J.P. , European Polymer Journal , 18, p. 903(1982).

10.

Averson, A.E. , and Merzhanov, A.G. , Combustion and Flame , 16, p. 89 (1971).

11.

Kanury, A.M. , Combustion Science and Technology , 9, p. 171 (1974);

12.

Combustion Science and Technology, 16 , p. 89 (1977).

13.

Nelson, G.L. , International Journal of Polymeric Materials, 7, p. 127 (1979).

14.

Robertson, A.F. , In Behavior of Polymeric Materials in Fire, ASTM STP 816, E.L. Schaffer, Ed., American Society of Testing and Materials, pp. 3-12 (1983).

15.

Dickens, E.D. , Jr. , Journal of Vinyl Technology, 5, p. 150 (1983).

16.

Hilado, C.J. , Flammability Handbook for Plastics, 2nd Edition, Technomic (1974).

17.

Morgan, A.W. , and Farley, C.P. , 29th SPE ANTEC, p. 417 (May 1971).

18.

Lutz, J.T. , 31st SPE ANTEC, p. 472 (May 1973).

19.

Matthews, G. , and Plemper, G.S. , British Polymer Journal , 15, p. 95 (1983).

20.

Glazar, B.L. , Howard, E.G. , and Collette , J.W. , Journal of Fire and Flammability, 9 , p. 430 (1978)

21.

. Whitelaw, K. , Plastic and Rubber Processing and Application , 2, p. 3 (1982).

22.

Wharton, R.K. , Fire and Materials , 5, p. 6 and 73 (1981).

23.

Sevecek, P. , Filipi, B. , and Zapletalova , I. , Fire and Materials , 5, p. 39 (1981).

24.

DiPietro, J. , and Stepniczka, H. , Journal of Fire and Flammability , 2, p. 36 (1971);

25.

Manley, T.R. , and Hampson, F.W. , Plastics and Rubber Processing and Applications, 3, p. 13 (1983)

26.

. Chambers, W.E. , Internal Report, B.F Goodrich R&D Center Report, unpublished (July 1980).

27.

Nelson, G.L. , and Webb, J.L. , Journal of Fire and Flammability , 4, p. 210 and 325 (1973 )

28.

. Petrella, R.V. , Polym.-Plast. Technol. & Eng. , 13, p. 83 (1979).

29.

Martin, F.J. , Combustion and Flame , 12, p. 125 (1968).

30.

Kanury, A.M. , given at Fire Safety of Combustion Materials Symposium University of Edinburgh (October 1975).

31.

Matthews, R.D. , and Sawyer, R.F. , Journal of Fire and Flammability , 7, p. 200 (1976).

32.

Magee, R.S. , and McAlevy, R.F. , Journal of Fire and Flammability, 2, p. 271 ( 1971)

33.

. DeRis, J. , in Twelfth International Symposium on Combustion, Combustion Institute, p. 241 (1969).

34.

Funt, J.M. , and Magill, J.H. , Journal of Fire and Flammability, 4, p. 174 ( 1973)

35.

. Tewarson, A. , and Pion, R.F. , Combustion and Flame , 26, p. 85 (1976).

36.

Dickens, E.D., Jr. , Internal Report, B.F. Goodrich R&D Center, unpublished (1972).