scholarly journals Enhanced thermal and mechanical properties of poly(trimethylene terephthalate-block-poly(tetramethylene oxide) segmented copolymer based hybrid nanocomposites prepared by in situ polymerization via synergy effect between SWCNTs and graphene nanoplatelets

2015 ◽  
Vol 9 (6) ◽  
pp. 509-524 ◽  
Author(s):  
S. Paszkiewicz ◽  
A. Szymczyk ◽  
K. Livanov ◽  
H. D. Wagner ◽  
Z. Roslaniec
Keyword(s):  
Mechanical Properties ◽  
In Situ Polymerization ◽  
Graphene Nanoplatelets ◽  
Hybrid Nanocomposites ◽  
Synergy Effect ◽  
Thermal And Mechanical Properties ◽  
Trimethylene Terephthalate ◽  
Tetramethylene Oxide

scholarly journals Thermal and Mechanical Properties of Polyethylene/Doped-TiO2Nanocomposites Synthesized Using In Situ Polymerization

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
S. H. Abdul Kaleel ◽  
Bijal Kottukkal Bahuleyan ◽  
J. Masihullah ◽  
Mamdouh Al-Harthi
Keyword(s):  
Mechanical Properties ◽  
In Situ Polymerization ◽  
Filler Concentration ◽  
Thermal And Mechanical Properties ◽  
Scanning Calorimetry ◽  
Polyethylene Matrix ◽  
Highly Active ◽  
Nanoparticles Dispersion ◽  
Temperature And Pressure

Ethylene polymerization was carried out using highly active metallocene catalysts (Cp2ZrCl2and Cp2TiCl2) in combination with methylaluminoxane. Titanium (IV) oxide containing 1% Mn as dopant was used as nanofillers. The effects of filler concentration, reaction temperature, and pressure on the thermal and mechanical properties of polymer were analyzed. The improvement of nanoparticles dispersion in the polyethylene matrix was checked by WAXD. The thermal properties were analyzed using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The filler impact on the melting temperature of polyethylene synthesized using Cp2ZrCl2was very minimal which is due to the degree of short-chain branching. The ash content was also analyzed for each nanocomposite and found to be in line with the activity of the catalyst. There was a significant increase in the mechanical properties of the polyethylene by addition of filler.

An in situ polymerization approach for functionalized MoS2/nylon-6 nanocomposites with enhanced mechanical properties and thermal stability

2015 ◽  
Vol 3 (47) ◽  
pp. 24112-24120 ◽  
Author(s):  
Xin Wang ◽  
Ehsan Naderi Kalali ◽  
De-Yi Wang
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
In Situ Polymerization ◽  
Nylon 6 ◽  
Interfacial Interaction ◽  
Thermal And Mechanical Properties

The enhancement in the thermal and mechanical properties of polymer/inorganic nanosheet composites depends strongly on their interfacial interaction.

Dielectric, thermal and mechanical properties of hybrid PMMA/RGO/Fe2O3 nanocomposites fabricated by in-situ polymerization

2020 ◽  
Vol 46 (5) ◽  
pp. 5828-5840 ◽  
Author(s):  
Yasir Ul-Haq ◽  
Imran Murtaza ◽  
Sadaf Mazhar ◽  
Rizwan Ullah ◽  
Mahmood Iqbal ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
In Situ Polymerization ◽  
Thermal And Mechanical Properties

Comparative study of the thermal and mechanical properties of nanocomposites prepared by in situ polymerization of ε-caprolactone and functionalized carbon nanotubes

2012 ◽  
Vol 33 (4) ◽  
pp. 562-572 ◽  
Author(s):  
Víctor H. Antolín-Cerón ◽  
Sergio Gómez-Salazar ◽  
Martin Rabelero ◽  
Víctor Soto ◽  
Gabriel Luna-Bárcenas ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Comparative Study ◽  
In Situ Polymerization ◽  
Thermal And Mechanical Properties ◽  
Functionalized Carbon Nanotubes

Polyethylene Functionalized Multi-Walled Carbon Nanotubes via In Situ Polymerization

2012 ◽  
Vol 573-574 ◽  
pp. 1163-1166
Author(s):  
Shi Yun Li ◽  
De Sheng Hu
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Storage Modulus ◽  
Raman Spectra ◽  
In Situ Polymerization ◽  
Thermal And Mechanical Properties ◽  
The Matrix ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The MWNTs/PE nanocomposites are prepared by in situ polymerization with mulltiwalled carbon nanotubes (MWNTs) supported Cp2ZrCl2 catalyst and MAO as cocatalyst. The SEM and AFM results show that MWNTs are exfoliated and homogenously dispersed in PE matrix by the in situ polymerization. The up-shifting of the G band in Raman spectra show the strong compressive forces associated with PE chains on the MWNTs. The storage modulus of the MWNTs/PE nanocomposite can be increased by 160% even at low amount of MWNTs (0.2 wt %) due to MWNTs well-dispersed and exfoliated in the matrix. The TGA and DMA tests point to significant improvements on thermal and mechanical properties of the PE/MWNTs nanocomposites compared to pure PE.

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