PMID- 25765341
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150731
LR  - 20150330
IS  - 1463-9084 (Electronic)
IS  - 1463-9076 (Linking)
VI  - 17
IP  - 14
DP  - 2015 Apr 14
TI  - Influence of hybrid nano-filler on the crystallization behaviour and interfacial 
      interaction in polyamide 6 based hybrid nano-composites.
PG  - 9410-9
LID - 10.1039/c5cp00018a [doi]
AB  - Expanded graphite (EG) and multiwalled carbon nanotubes (MWNTs) based hybrid 
      nano-composites were prepared with polyamide 6 (PA6) matrix via melt-mixing 
      technique using a conical twin-screw micro-compounder. A novel organic modifier 
      (lithium salt of 6-aminohexanoic acid; Li-AHA) was employed to modify MWNTs, 
      which was utilized to intercalate Li-AHA modified MWNTs into the partially 
      exfoliated EG gallery. Morphological investigation showed the intercalation of 
      Li-AHA modified MWNTs into a partially exfoliated EG gallery in an EG/MWNTs-m2h 
      hybrid, whereas the unmodified EG/MWNTs-h hybrid mixture exhibited a separate 
      identity in the mixture. Improved interaction via melt-interfacial reaction 
      between the acid end group of PA6 and the amine functionality of Li-AHA in the 
      EG/MWNTs-m2h hybrid filler was confirmed by Fourier transform infrared 
      spectroscopic analysis. The extent of melt-interfacial reaction was increased as 
      a function of Li-AHA concentration in the filler. Wide angle X-ray diffraction 
      analysis showed the existence of the alpha-crystalline phase of PA6. The 
      incorporation of MWNTs, EG and EG/MWNTs hybrid in the PA6 matrix has favoured an 
      alpha-crystalline structure of the PA6 phase. Crystallization studies have indicated 
      a significant increase in the bulk crystallization temperature of the PA6 phase 
      in the presence of MWNTs, EG and the EG/MWNTs hybrid filler. Moreover, the 
      formation of PA6 'trans-crystalline lamellae' on the MWNTs surface was 
      facilitated in the case of composites with MWNTs and the EG/MWNTs hybrid filler. 
      An attempt has been made to investigate the role of the EG/MWNTs hybrid filler in 
      influencing the crystallization behaviour of the PA6 phase in the hybrid 
      nano-composites.
FAU - Sreekanth, M S
AU  - Sreekanth MS
AD  - Department of Metallurgical Engineering and Materials Science, Indian Institute 
      of Technology Bombay, Powai, Mumbai 400076, India. arupranjan@iitb.ac.in.
FAU - Panwar, Ajay S
AU  - Panwar AS
FAU - Potschke, Petra
AU  - Potschke P
FAU - Bhattacharyya, Arup R
AU  - Bhattacharyya AR
LA  - eng
PT  - Journal Article
DEP - 20150313
PL  - England
TA  - Phys Chem Chem Phys
JT  - Physical chemistry chemical physics : PCCP
JID - 100888160
EDAT- 2015/03/15 06:00
MHDA- 2015/03/15 06:01
CRDT- 2015/03/14 06:00
PHST- 2015/03/14 06:00 [entrez]
PHST- 2015/03/15 06:00 [pubmed]
PHST- 2015/03/15 06:01 [medline]
AID - 10.1039/c5cp00018a [doi]
PST - ppublish
SO  - Phys Chem Chem Phys. 2015 Apr 14;17(14):9410-9. doi: 10.1039/c5cp00018a. Epub 
      2015 Mar 13.