Optimization of the Mechanical Properties of Polyolefin Composites Loaded with Mineral Fillers for Flame Retardant Cables
| Autor: | Camillo Cardelli, Sara Haveriku, Marco Badalassi, Andrea Pucci, Giacomo Ruggeri, Michela Meucci |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Boehmite
Computer science Composite number poly (ethylene-co-vinyl acetate) (EVA) synthetic magnesium hydroxide (s-MDH) 02 engineering and technology mechanical properties engineering.material 010402 general chemistry 01 natural sciences ultra-low density polyethylene functionalized whit maleic anhydride (ULDPE-g-MAH) chemistry.chemical_compound Rheology Halogen-Free Flame-Retardant (HFFR) composites poly (ethylene-co-α-olefin) Vinyl acetate LOI Composite material chemistry.chemical_classification Brucite Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Polyolefin chemistry engineering 0210 nano-technology natural magnesium hydroxide (n-MDH) Fire retardant |
| Zdroj: | Micro Volume 1 Issue 1 Pages 8-119 |
| ISSN: | 2673-8023 |
| DOI: | 10.3390/micro1010008 |
| Popis: | Formulations based on mineral fillers and polymeric matrices of different nature were studied to obtain halogen-free flame retardant compounds (HFFR) for cable applications. The work was carried out by comparing fire-retardant mineral fillers of natural origin with synthetic mineral ones available on the market. As a reference, a formulation based on micronized natural magnesium hydroxide (n-MDH, obtained from brucite) and an ethylene-vinyl acetate copolymer with 28% by weight (11% by moles) of vinyl acetate were selected, and the mechanical and flame retardant properties compared with formulations based on secondary polymers combined with EVA, metal hydroxides, and carbonates. Notably, we found a synergistic effect in the mechanical, rheological and flame retardant properties for the composite containing a mixture of n-MDH and boehmite in a 3:1 weight ratio. Overall, the present work provided a complete and optimized recipe for the formulation of polymer composites characterized by the required flame retardant and mechanical features in electric cables applications. |
| Databáze: | OpenAIRE |
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