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Polyaniline‐coupled graphene/nickel hydroxide nanohybrids as flame retardant and smoke suppressant for epoxy composites.
- Source :
- Polymers for Advanced Technologies; Aug2019, Vol. 30 Issue 8, p1959-1967, 9p
- Publication Year :
- 2019
-
Abstract
- Graphene‐polyaniline/nickel hydroxide ternary hybrid (RGO‐PANI/Ni(OH)2) was synthesized and incorporated into epoxy resin (EP) to improve the fire retardant property. Thermogravimetric analysis results showed that the RGO‐PANI/Ni(OH)2 nanohybrid could catalyze the thermal degradation of epoxy matrix that was essential to trigger the char formation. The char yield of the RGO‐PANI/Ni(OH)2/EP composite was improved compared with that of the samples with graphene and polyaniline only. With 3.0‐wt% RGO‐PANI/Ni(OH)2, significant reduction in peak heat release rate (40%) and peak smoke production rate (36%) was observed in the cone calorimeter tests. Thermogravimetric analysis/infrared spectrometry (TG‐IR) results indicated that the flammable volatiles of the RGO‐PANI/Ni(OH)2/EP composite was reduced compared with those of the EP and RGO‐PANI/EP. The superior flame retardant and smoke suppressant behaviors of the RGO‐PANI/Ni(OH)2 nanohybrid over RGO‐PANI were attributed to the combination of good barrier effect of graphene with catalytic ability of char formation of PANI and metal hydroxide. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10427147
- Volume :
- 30
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Polymers for Advanced Technologies
- Publication Type :
- Academic Journal
- Accession number :
- 137376257
- Full Text :
- https://doi.org/10.1002/pat.4628