The flammability of short Kevlar® aramide fiber-thermoplastic polyurethane (TPU) has been investigated with respect to fiber loading and various flame retardant additives such as halogen containing polymers, anti mony oxide/chlorine donor combination, zinc borate, and aluminum hydroxide. Smoke generation was reduced drastically, while the oxygen index was reduced marginally in the presence of short fibers. The best improvement in the oxygen index was obtained with antimony oxide/chlorinated paraffin wax combination, in the weight ratio 1:6. A 70 phr loading of aluminum hydroxide improved LOI and reduced smoke generation.
Get full access to this article
View all access options for this article.
References
1.
Grassie, N. and G.A.P. Mendoza.1985. Polym. Deg. Stab ., 11:359.
2.
Grassie, N. and G.A.P. Mendoza.1985. Polym. Deg. Stab ., 11:145.
3.
Kutty, S.K.N. and G.B. Nando.1991. J. Appl. Polym. Sci., 43:1913.
4.
Kutty, S.K.N. , P.P. De and G.B. Nando.1991. Plast. Rubber Comp. Proc. Appl., 15:23.
5.
Kutty, S.K.N. and G.B. Nando.1991. J. Appl. Polym. Sci., 42: 1835.
6.
Kutty, S.K.N. , T.K. Chaki and G.B. Nando. In press. Polym. Deg. Stab .
7.
Grayson, S.J. , J. Hume and D.A. Smith.1982. Plast. Rubber Proc. Appl., 2:111.
