Abstract
Polycarbonate/Poly(butylene terephthalate) (PC/PBT) blends are used in various industrial sectors, particularly in the cable industry. In this work, the fire behavior of PC/PBT blends was studied for the entire range of blend composition to investigate the relation between fire properties and blend morphology. The morphology of the binary blends used presents a phase inversion point for 25–30 wt % PBT. Various tests have been performed to characterize the fire behavior [limiting oxygen index (LOI), epiradiator test, cone calorimeter, and pyrolysis combustion flow calorimeter (PCFC)]. A change in fire behavior has been observed when the PBT content increases from 20 to 30 wt %, corresponding to the phase inversion, from a continuous rich‐PC phase to a continuous rich‐PBT phase. Consequently, it can be suggested that the control of the morphology of binary polymer blends is crucial to improve their fire properties. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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| Authors: |
|
Sonnier, Rodolphe; Viretto, Amandine; Taguet, Aurélie; Lopez‐Cuesta, José‐Marie |
| Journal: |
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Journal of Applied Polymer Science
|
| Volume: |
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125 |
| Issue: |
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4 |
| Year: |
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2012 |
| Pages: |
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3148 |
| DOI: |
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10.1002/app.36480 |
| Publication date: |
|
15-08-2012 |