Abstract
A series of five oleate-containing layered double hydroxides with varied ratios of zinc to magnesium, i.e., with the general formula Zn2-yMgyAl(OH)6 [CH3(CH2)7CH{double bond, long}CH(CH2)7COO]·nH2O, were synthesized and used to prepare nanocomposites of polypropylene (PP). The nanomaterials were characterized by elemental analysis, attenuated total reflection-infrared spectroscopy (ATR-IR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA), while the composites were characterized by XRD, TGA, transmission electron microscopy (TEM) and cone calorimetry. The zinc-containing LDH showed better dispersion in the polymer at the micrometer level than did the magnesium-containing LDH while both are equally well-dispersed at the nanometer level. The magnesium-containing composites led to more thermally stable systems in TGA experiments, while the zinc systems gave greater reductions in heat release rate during combustion. Dispersion was also affected by the amount of PP-g-MA which was present. More PP-g-MA gave better dispersion and a significantly reduced peak heat release rate, i.e., enhanced fire performance.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2042-2054 |
| Number of pages | 13 |
| Journal | Polymer Degradation and Stability |
| Volume | 94 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1 2009 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Polymers and Plastics
- Materials Chemistry
Cite this
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Polymer nanocomposites using zinc aluminum and magnesium aluminum oleate layered double hydroxides : Effects of the polymeric compatibilizer and of composition on the thermal and fire properties of PP/LDH nanocomposites. / Manzi-Nshuti, Charles; Songtipya, Ponusa; Manias, Evangelos; Jimenez Gasco, Maria Del Mar; Hossenlopp, Jeanne M.; Wilkie, Charles A.
In: Polymer Degradation and Stability, Vol. 94, No. 11, 01.11.2009, p. 2042-2054.Research output: Contribution to journal › Article
TY - JOUR
T1 - Polymer nanocomposites using zinc aluminum and magnesium aluminum oleate layered double hydroxides
T2 - Effects of the polymeric compatibilizer and of composition on the thermal and fire properties of PP/LDH nanocomposites
AU - Manzi-Nshuti, Charles
AU - Songtipya, Ponusa
AU - Manias, Evangelos
AU - Jimenez Gasco, Maria Del Mar
AU - Hossenlopp, Jeanne M.
AU - Wilkie, Charles A.
PY - 2009/11/1
Y1 - 2009/11/1
N2 - A series of five oleate-containing layered double hydroxides with varied ratios of zinc to magnesium, i.e., with the general formula Zn2-yMgyAl(OH)6 [CH3(CH2)7CH{double bond, long}CH(CH2)7COO]·nH2O, were synthesized and used to prepare nanocomposites of polypropylene (PP). The nanomaterials were characterized by elemental analysis, attenuated total reflection-infrared spectroscopy (ATR-IR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA), while the composites were characterized by XRD, TGA, transmission electron microscopy (TEM) and cone calorimetry. The zinc-containing LDH showed better dispersion in the polymer at the micrometer level than did the magnesium-containing LDH while both are equally well-dispersed at the nanometer level. The magnesium-containing composites led to more thermally stable systems in TGA experiments, while the zinc systems gave greater reductions in heat release rate during combustion. Dispersion was also affected by the amount of PP-g-MA which was present. More PP-g-MA gave better dispersion and a significantly reduced peak heat release rate, i.e., enhanced fire performance.
AB - A series of five oleate-containing layered double hydroxides with varied ratios of zinc to magnesium, i.e., with the general formula Zn2-yMgyAl(OH)6 [CH3(CH2)7CH{double bond, long}CH(CH2)7COO]·nH2O, were synthesized and used to prepare nanocomposites of polypropylene (PP). The nanomaterials were characterized by elemental analysis, attenuated total reflection-infrared spectroscopy (ATR-IR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA), while the composites were characterized by XRD, TGA, transmission electron microscopy (TEM) and cone calorimetry. The zinc-containing LDH showed better dispersion in the polymer at the micrometer level than did the magnesium-containing LDH while both are equally well-dispersed at the nanometer level. The magnesium-containing composites led to more thermally stable systems in TGA experiments, while the zinc systems gave greater reductions in heat release rate during combustion. Dispersion was also affected by the amount of PP-g-MA which was present. More PP-g-MA gave better dispersion and a significantly reduced peak heat release rate, i.e., enhanced fire performance.
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U2 - 10.1016/j.polymdegradstab.2009.07.013
DO - 10.1016/j.polymdegradstab.2009.07.013
M3 - Article
VL - 94
SP - 2042
EP - 2054
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
SN - 0141-3910
IS - 11
ER -