We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Facile preparation of modified carbon nanotube-reinforced PBT nanocomposites with enhanced thermal, flame retardancy, and mechanical properties.
- Authors
Yang, Wei; Zhou, Han; Yang, Benhong; Lu, Hongdian; Song, Lei; Hu, Yuan
- Abstract
In this study, the carbon nanotube was modified by inorganic acids to introduce the carboxylic acid groups on the surface. The modified carbon nanotube ( m-CNT)-reinforced poly(1,4-butylene terephthalate) (PBT) nanocomposites were prepared through melt blending method. Morphological observations revealed that the m-CNT particles were homogeneously dispersed in PBT matrix. Differential scanning calorimeter (DSC) analysis showed that a very small quantity of m-CNT can significantly increase the crystallization temperature of PBT. The improvement of thermal stability and tensile strength/modulus of the nanocomposites strongly depended on the uniform dispersion of m-CNT and the interactions between m-CNT and PBT through hydrogen-bonding formation. In the cone calorimeter testing, the PHRR decreased from 1189 kW/m2 for neat PBT to 737 kW/m2 for PBT/0.9 m-CNT containing 0.9 wt% m-CNT with a reduction of 38%. The remarkable enhancement of flame retardancy properties was attributed to the condensed-phase effect acted by the m-CNT. POLYM. COMPOS., 37:1812-1820, 2016. © 2014 Society of Plastics Engineers
- Subjects
POLYBUTYLENE terephthalate; CARBON nanotubes; NANOCOMPOSITE materials testing; HYDROGEN bonding; CARBOXYLIC acids; DIFFERENTIAL scanning calorimetry
- Publication
Polymer Composites, 2016, Vol 37, Issue 6, p1812
- ISSN
0272-8397
- Publication type
Article
- DOI
10.1002/pc.23354