Epoxy functionalized multi‐walled carbon nanotubes/polyvinylidene fluoride nanocomposites: Microstructure, morphology, thermal, piezoelectricity and conductivity investigations. (15th November 2018)
- Record Type:
- Journal Article
- Title:
- Epoxy functionalized multi‐walled carbon nanotubes/polyvinylidene fluoride nanocomposites: Microstructure, morphology, thermal, piezoelectricity and conductivity investigations. (15th November 2018)
- Main Title:
- Epoxy functionalized multi‐walled carbon nanotubes/polyvinylidene fluoride nanocomposites: Microstructure, morphology, thermal, piezoelectricity and conductivity investigations
- Authors:
- Begum, Saddiqa
Ullah, Hameed
Kausar, Ayesha
Siddiq, Mohammad
Aleem, Muhammad Adeel - Abstract:
- Abstract : Multi‐walled carbon nanotubes (MWCNTs) were modified by grafting to di‐glycidyl ether of bisphenol‐A (DGEBA) through 4, 4 ′‐ diaminodiphenylsulfone functionality, and subsequently were used as reinforcement in polyvinylidene fluoride (PVDF) to fabricate ef ‐MWCNTs/PVDF nanocomposites for the very first time. Comparing to the nonfunctionalized pristine MWCNTs ( p ‐MWCNTS) and acyl chloride‐modified MWCNTs ( ac ‐MWCNTs), the ef ‐MWCNTs have shown better and enhanced dispersion into the PVDF matrix, owing to the better interface formation due to the improved interaction between the tubes and the polymer chains. Consequently, the ef ‐MWCNTs/PVDF nanocomposites have shown higher melting temperature ( T m ) corresponding to the increased β‐phase fraction formation. This was also reflected in the piezoelectric analyses in which the ef ‐MWCNTs/PVDF nanocomposites have shown increased β‐phase dependent piezoelectric constant, d 33, reaching above 8.0 PC/N comparing to 5.0 PC/N in case of ac‐ MWCNTs/PVDF. Similarly, a reverse trend has been observed after the percolation threshold in the conductivity of ac ‐MWCNTs/PVDF nanocomposites. Contrarily, the conductivity of ef ‐MWCNTs/PVDF nanocomposites have shown a regular increase after the percolation threshold with increasing ef ‐MWCNTs wt% loading. In a nutshell, we have achieved better dispersion even at highest applied wt% loadings of MWCNTs into PVDF matrix upon functionalizing with epoxy, corresponding to strongAbstract : Multi‐walled carbon nanotubes (MWCNTs) were modified by grafting to di‐glycidyl ether of bisphenol‐A (DGEBA) through 4, 4 ′‐ diaminodiphenylsulfone functionality, and subsequently were used as reinforcement in polyvinylidene fluoride (PVDF) to fabricate ef ‐MWCNTs/PVDF nanocomposites for the very first time. Comparing to the nonfunctionalized pristine MWCNTs ( p ‐MWCNTS) and acyl chloride‐modified MWCNTs ( ac ‐MWCNTs), the ef ‐MWCNTs have shown better and enhanced dispersion into the PVDF matrix, owing to the better interface formation due to the improved interaction between the tubes and the polymer chains. Consequently, the ef ‐MWCNTs/PVDF nanocomposites have shown higher melting temperature ( T m ) corresponding to the increased β‐phase fraction formation. This was also reflected in the piezoelectric analyses in which the ef ‐MWCNTs/PVDF nanocomposites have shown increased β‐phase dependent piezoelectric constant, d 33, reaching above 8.0 PC/N comparing to 5.0 PC/N in case of ac‐ MWCNTs/PVDF. Similarly, a reverse trend has been observed after the percolation threshold in the conductivity of ac ‐MWCNTs/PVDF nanocomposites. Contrarily, the conductivity of ef ‐MWCNTs/PVDF nanocomposites have shown a regular increase after the percolation threshold with increasing ef ‐MWCNTs wt% loading. In a nutshell, we have achieved better dispersion even at highest applied wt% loadings of MWCNTs into PVDF matrix upon functionalizing with epoxy, corresponding to strong interfacial interactions between the tubes and polymer chains. POLYM. COMPOS., 40:E776–E794, 2019. © 2018 Society of Plastics Engineers … (more)
- Is Part Of:
- Polymer composites. Volume 40(2019)Supplement 1
- Journal:
- Polymer composites
- Issue:
- Volume 40(2019)Supplement 1
- Issue Display:
- Volume 40, Issue 1 (2019)
- Year:
- 2019
- Volume:
- 40
- Issue:
- 1
- Issue Sort Value:
- 2019-0040-0001-0000
- Page Start:
- E776
- Page End:
- E794
- Publication Date:
- 2018-11-15
- Subjects:
- Polymeric composites -- Periodicals
620.192 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1548-0569 ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/pc.25021 ↗
- Languages:
- English
- ISSNs:
- 0272-8397
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6547.704300
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 22883.xml