Tailoring the fire retardant performance of polymers using multi-component processing technologies

A. Ahmadnia, P. R. Hornsby, G. Marosi, P. Anna

Research output: Contribution to conferencePaper

6 Citations (Scopus)

Abstract

The addition of fire retardants to polymers generally causes a deterioration in mechanical properties and an increase in melt viscosity, reducing processibility. These effects are exacerbated as additive levels are increased, as is usually the case with fire retardant fillers, such as magnesium and aluminium hydroxides. Although this drawback can be overcome to some extent using filler surface treatments and processing aids, costs are increased and fire retardant efficiency may be compromised. This paper considers the use of multiple-component processing technology as a means of minimising the deleterious effects of fire retardant fillers, by locating these functional additives in the surface regions of mouldings, where they are most effective in minimising ignition on exposure to a combustion source. In this way, the core of processed parts can be made from unmodified polymer or from material with reduced fire retardant loading, thereby maintaining mechanical integrity. Results will be presented demonstrating the potential benefits of this concept, by reference to various hydrated filler/polymer combinations, in parts made with different skin/core thickness ratios.

Original languageEnglish
Pages2755-2759
Number of pages5
Publication statusPublished - Jan 1 2003
Event61st Annual Technical Conference ANTEC 2003 - Nashville, TN, United States
Duration: May 4 2003May 8 2003

Other

Other61st Annual Technical Conference ANTEC 2003
CountryUnited States
CityNashville, TN
Period5/4/035/8/03

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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    Ahmadnia, A., Hornsby, P. R., Marosi, G., & Anna, P. (2003). Tailoring the fire retardant performance of polymers using multi-component processing technologies. 2755-2759. Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States.