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Fire-safe and environmentally friendly nanocomposites based on layered double hydroxides and ethylene propylene diene elastomer
- Source :
- RSC Advances. 6:26425-26436
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- In this work we describe layered double hydroxide (LDH), known as naturally occurring hydrotalcite, based rubber composites that can serve as outstanding fire retardant elastomeric materials. The preparation and detailed characterization of these composites are presented in this study. The inherent slow sulfur cure nature of EPDM rubber is considerably improved by the addition of LDH as realised by the observation of a shortening of the vulcanization time and an improvement of ultimate rheometric torque. This behavior of LDH signifies not only the filler-like character of itself, but also offers vulcanization active surface properties of layered double hydroxide particles. A good rubber–filler interaction was also realised by observing a positive shift of the glass transition temperature of ethylene propylene diene rubber (EPDM) in dynamic mechanical analysis (DMA). The flame retardant property was studied by the cone calorimeter test. The cone calorimeter investigation with sulfur cured gum rubber compounds found a peak heat release rate (PHRR) value of 654 kW m−2. However, at a higher phr loading of Zn–Al LDH i.e., at 40 phr and 100 phr, the PHRR is diminished to 311 kW m−2 and 161 kW m−2, respectively. Thus, this present work can pave the way to fabricate environmentally friendly fire retardant elastomeric composites for various applications.
- Subjects :
- Materials science
EPDM rubber
General Chemical Engineering
Vulcanization
Layered double hydroxides
02 engineering and technology
General Chemistry
Ethylene propylene rubber
engineering.material
010402 general chemistry
021001 nanoscience & nanotechnology
Elastomer
01 natural sciences
0104 chemical sciences
law.invention
Natural rubber
law
visual_art
Cone calorimeter
Polymer chemistry
visual_art.visual_art_medium
engineering
Composite material
0210 nano-technology
Fire retardant
Subjects
Details
- ISSN :
- 20462069
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- RSC Advances
- Accession number :
- edsair.doi...........ea626a9a590773ac81b312c003df1270