Improved fracture toughness of epoxy resin reinforced with polyamide 6/graphene oxide nanocomposites prepared via in situ polymerization

2019 ◽  
Vol 171 ◽  
pp. 180-189 ◽  
Author(s):  
Xiaoran Zhao ◽  
Ye Li ◽  
Wen Chen ◽  
Shuang Li ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Graphene Oxide ◽  
Epoxy Resin ◽  
In Situ Polymerization ◽  
Polyamide 6

Graphene oxide–polyamide 6 nanocomposites produced via in situ polymerization

2013 ◽  
Vol 28 (3) ◽  
pp. 372-389 ◽  
Author(s):  
Dorian Dixon ◽  
Patrick Lemonine ◽  
Jeremy Hamilton ◽  
Genady Lubarsky ◽  
Edward Archer
Keyword(s):  
Graphene Oxide ◽  
In Situ Polymerization ◽  
Polyamide 6

High-density polyethylene/graphene oxide nanocomposites prepared via in situ polymerization: Morphology, thermal, and electrical properties

2018 ◽  
Vol 16 ◽  
pp. 232-241 ◽  
Author(s):  
Antonio Cruz-Aguilar ◽  
Dámaso Navarro-Rodríguez ◽  
Odilia Pérez-Camacho ◽  
Salvador Fernández-Tavizón ◽  
Carlos Alberto Gallardo-Vega ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
High Density Polyethylene ◽  
In Situ Polymerization ◽  
High Density ◽  
Thermal And Electrical Properties

scholarly journals PA6 and Halloysite Nanotubes Composites with Improved Hydrothermal Ageing Resistance: Role of Filler Physicochemical Properties, Functionalization and Dispersion Technique

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 211 ◽  
Author(s):  
Valentina Sabatini ◽  
Tommaso Taroni ◽  
Riccardo Rampazzo ◽  
Marco Bompieri ◽  
Daniela Maggioni ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Polymer Matrix ◽  
In Situ Polymerization ◽  
Cost Effective ◽  
Polyamide 6 ◽  
Halloysite Nanotubes ◽  
Amide Bonds ◽  
Molecular Weights ◽  
Dispersion Technique

Polyamide 6 (PA6) suffers from fast degradation in humid conditions due to hydrolysis of amide bonds, which limits its durability. The addition of nanotubular fillers represents a viable strategy for overcoming this issue, although the additive/polymer interface at high filler content can become privileged site for moisture accumulation. As a cost-effective and versatile material, halloysite nanotubes (HNT) were investigated to prepare PA6 nanocomposites with very low loadings (1–45% w/w). The roles of the physicochemical properties of two differently sourced HNT, of filler functionalization with (3-aminopropyl)triethoxysilane and of dispersion techniques (in situ polymerization vs. melt blending) were investigated. The aspect ratio (5 vs. 15) and surface charge (−31 vs. −59 mV) of the two HNT proved crucial in determining their distribution within the polymer matrix. In situ polymerization of functionalized HNT leads to enclosed and well-penetrated filler within the polymer matrix. PA6 nanocomposites crystal growth and nucleation type were studied according to Avrami theory, as well as the formation of different crystalline structures (α and γ forms). After 1680 h of ageing, functionalized HNT reduced the diffusion of water into polymer, lowering water uptake after 600 h up to 90%, increasing the materials durability also regarding molecular weights and rheological behavior.

Sign in / Sign up

Export Citation Format

Share Document