The Effect of the Low Smoke Zirpro Treatment and Wool Carpet Construction On Flame-Resistance and Emission of Smoke and Toxic Gas

Abstract

The Low Smoke Zirpro treatment considerably improved the flame-resistance of wool woven carpets, while decreasing smoke emission and the concentration of some toxic gases. The solid phase mechanism of this flame-retardant treat ment, producing increased char volume, which restricts combustion, could be responsible for this advantageous burning behaviour. Cellulosic/glass fibre backing constructions produced less smoke than F.R. polyester/glass fibre carpet backings, under the flaming mode of test. Application of a vinyl-acetate- ethylene copolymer latex with alumina trihydrate filler was beneficial in improv ing flame-retardance and limiting smoke emission. Pile density was the most im portant carpet construction parameter; an increase in this parameter produced increased flame-resistance and smoke emission of untreated wool carpets. Ap plication of the Low Smoke Zirpro treatment suppressed the effect of this parameter.

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References

Benisek, L. , "Burning Behaviour of Carpets: The Advantages of Wool and Flame-Resistant Wool," Text. Res. J. 45, 373-382 (1975).

Benisek, L. , and Phillips, W.A. , "Evaluation of Carpets in the National Bureau of Standards Flooring Radiant Panel," Text. Res. J. 53, 36-43 (1983).

Federal Aviation Regulations 25.853, Compartment Interiors, Federal Register 37, 3971-3973 (1972).

Hasselbrack, S.A. , "Textile Materials for Commercial Transportation Vehicles," 12th National SAMPE Technical Conference, October 7-9, 816-828 (1980).

Airbus Industrie Technical Specification ATS-1000.001, issue 3 (1980).

Benisek, L. , and Phillips, W.A. , "The Effect of Backing Fibre and Latex Type on the Burning Behaviour and Smoke Emission of Wool Carpets for Aircraft Interiors," J. Fire and Flammability 8, 516-531 (1977).

Benisek, L. , and Phillips, W.A. , "The Effect of Flame-Resist Treatments on the Smoke Emission of Wool Upholstery Fabrics," J. Fire and Flammability 8,458-477 (1977).

ASTM E 648-78, Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source.

Lee, T.G. , "Interlaboratory Evaluation of Smoke Density Chamber," NBS Technical Note 708, December, 1971.

10.

Beck, P.J. , Gordon, P.G. , and Stephens, L.J. , "Mechanisms of Flame-Retardation on Wool," Proc. 5th Int. Wool Textile Research Conference, Vol. II ( 1975) 549-558.

11.

Benisek, L. , "Antagonism and Flame-Retardancy," Tex. Res. J. 51 , 369-370 (1981).

12.

Benisek, L. , and Phillips, W.A. , "The Effect of the Zirpro Flame-Retardant Treatments on the Toxicity of Combustion Product from Wool," J. Combustion Toxicology 7, 181-193 (1980).

13.

Benisek, L. , "The Effect of the Zirpro Flame-Retardant Treatments on Flame-Retardance, Smoke Emission and Toxicity of Combustion Products (NBS Developmental Test)," J. Combustion Toxicology 8,233-241 (1981).

14.

Benjamin, I.A. , and Adams, C.H. , "The Flooring Radiant Panel & Proposed Criteria," Fire Journal 70 (March) 63-71 (1976).