Using CAE Analysis to Evaluate Flame Retarded Polycarbonates for Automotive Applications

950831

02/01/1995

Event
International Congress & Exposition
Authors Abstract
Content
A medium weight polycarbonate (PC) is flame retarded with either a low molecular weight, brominated phosphate ester or a brominated PC oligomer. Rheological characteristics are examined, and advanced CAE software is used to simulate the processability of these materials in automotive applications. The brominated phosphate ester reduces the viscosity of the neat resin, improving both flow and packing characteristics during injection molding. The brominated PC oligomer does not affect the processability of the material. Further examination of molded parts shows that both additives improve tensile properties, although the phosphate ester increases both tensile strength and stiffness more. These results are correlated to the molecular structures of the additives. The reduced viscosity/improved mechanical behavior exhibited by the phosphate ester formulation is also explained in terms of antiplasticization theory.
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DOI
https://doi.org/10.4271/950831
Pages
10
Citation
Seibel, S., "Using CAE Analysis to Evaluate Flame Retarded Polycarbonates for Automotive Applications," SAE Technical Paper 950831, 1995, https://doi.org/10.4271/950831.
Additional Details
Publisher
Published
Feb 1, 1995
Product Code
950831
Content Type
Technical Paper
Language
English