Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 132, Issue 2, Pages -Publisher
WILEY-BLACKWELL
DOI: 10.1002/app.41259
Keywords
composites; damping property; extrusion; flame retardance; rubber
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Funding
- National Natural Science Foundation of China [51273132, 51227802, 51121001]
- Program for New Century Excellent Talents in University [NCET-13-0392]
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The alternating multilayered damping composites, which were consisted of chlorinated butyl rubber (CIIR) layers and poly(vinyl chloride) (PVC) layers, were first prepared through multilayered coextrusion technology. The multilayered structure was controlled by adjusting the layer number or the thickness ratio of CIIR layer and PVC layer. The damping and flame-retardant properties of the CIIR/PVC multilayered damping composites were investigated by dynamic mechanical analysis, the limiting oxygen index, and thermogravimetric analyzer, respectively. The results showed that the effective damping temperature range was broadened with increasing the layer number, since multilayered structure resulted in partial overlap of the loss peaks of CIIR and PVC. Meanwhile, the flame-retardant properties of the multilayered composites were also enhanced with increasing the layer number. Less surface area of CIIR contacting oxygen in the confined burning space, rather than the formation of char residue, could effectively retard the combustion of the material. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41259.
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