Role of montmorillonite in flame retardancy of ethylene-vinyl acetate copolymer

A. Szép, A. Szabó, Nikoletta Tóth, P. Anna, G. Marosi

Research output: Article

73 Citations (Scopus)

Abstract

The effects of non-treated (MMT), organophilic (OMM), and olefin/silicone polymer intercalated (IMM) montmorillonites on the thermal stability of ethylene-vinyl acetate copolymer (EVA) and on the flammability of magnesium hydroxide filled EVA were studied. The influence of various treatments on the delamination of montmorillonites in EVA was detected by rheological measurements and by Raman microscopy. The latter was a unique method for rapid detection of the dispersion also in highly filled EVA. Enhancement of thermo-oxidative stability of EVA and flame-retarded EVA could be observed by thermal analysis in the presence of variously treated montmorillonites. The flame-retardant efficiency of magnesium hydroxide was improved by simultaneous application of MMT and IMM. The increased performance of magnesium hydroxide was explained by the rheological effect of the IMM, catalytic effect of MMT and chemical interactions of montmorillonites with the metal hydroxide.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalPolymer Degradation and Stability
Volume91
Issue number3
DOIs
Publication statusPublished - márc. 2006

Fingerprint

Bentonite
montmorillonite
butadiene
Clay minerals
acetates
flames
copolymers
Ethylene
Copolymers
Magnesium Hydroxide
hydroxides
Magnesium
magnesium
thermal stability
Flame Retardants
flame retardants
flammability
Flammability
Alkenes
silicones

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

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title = "Role of montmorillonite in flame retardancy of ethylene-vinyl acetate copolymer",
abstract = "The effects of non-treated (MMT), organophilic (OMM), and olefin/silicone polymer intercalated (IMM) montmorillonites on the thermal stability of ethylene-vinyl acetate copolymer (EVA) and on the flammability of magnesium hydroxide filled EVA were studied. The influence of various treatments on the delamination of montmorillonites in EVA was detected by rheological measurements and by Raman microscopy. The latter was a unique method for rapid detection of the dispersion also in highly filled EVA. Enhancement of thermo-oxidative stability of EVA and flame-retarded EVA could be observed by thermal analysis in the presence of variously treated montmorillonites. The flame-retardant efficiency of magnesium hydroxide was improved by simultaneous application of MMT and IMM. The increased performance of magnesium hydroxide was explained by the rheological effect of the IMM, catalytic effect of MMT and chemical interactions of montmorillonites with the metal hydroxide.",
keywords = "Fire retardancy, Hydrated filler, Interface modification, Nanocomposite, Rheology, Thermal degradation",
author = "A. Sz{\'e}p and A. Szab{\'o} and Nikoletta T{\'o}th and P. Anna and G. Marosi",
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T1 - Role of montmorillonite in flame retardancy of ethylene-vinyl acetate copolymer

AU - Szép, A.

AU - Szabó, A.

AU - Tóth, Nikoletta

AU - Anna, P.

AU - Marosi, G.

PY - 2006/3

Y1 - 2006/3

N2 - The effects of non-treated (MMT), organophilic (OMM), and olefin/silicone polymer intercalated (IMM) montmorillonites on the thermal stability of ethylene-vinyl acetate copolymer (EVA) and on the flammability of magnesium hydroxide filled EVA were studied. The influence of various treatments on the delamination of montmorillonites in EVA was detected by rheological measurements and by Raman microscopy. The latter was a unique method for rapid detection of the dispersion also in highly filled EVA. Enhancement of thermo-oxidative stability of EVA and flame-retarded EVA could be observed by thermal analysis in the presence of variously treated montmorillonites. The flame-retardant efficiency of magnesium hydroxide was improved by simultaneous application of MMT and IMM. The increased performance of magnesium hydroxide was explained by the rheological effect of the IMM, catalytic effect of MMT and chemical interactions of montmorillonites with the metal hydroxide.

AB - The effects of non-treated (MMT), organophilic (OMM), and olefin/silicone polymer intercalated (IMM) montmorillonites on the thermal stability of ethylene-vinyl acetate copolymer (EVA) and on the flammability of magnesium hydroxide filled EVA were studied. The influence of various treatments on the delamination of montmorillonites in EVA was detected by rheological measurements and by Raman microscopy. The latter was a unique method for rapid detection of the dispersion also in highly filled EVA. Enhancement of thermo-oxidative stability of EVA and flame-retarded EVA could be observed by thermal analysis in the presence of variously treated montmorillonites. The flame-retardant efficiency of magnesium hydroxide was improved by simultaneous application of MMT and IMM. The increased performance of magnesium hydroxide was explained by the rheological effect of the IMM, catalytic effect of MMT and chemical interactions of montmorillonites with the metal hydroxide.

KW - Fire retardancy

KW - Hydrated filler

KW - Interface modification

KW - Nanocomposite

KW - Rheology

KW - Thermal degradation

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U2 - 10.1016/j.polymdegradstab.2005.02.026

DO - 10.1016/j.polymdegradstab.2005.02.026

M3 - Article

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VL - 91

SP - 593

EP - 599

JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

SN - 0141-3910

IS - 3

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