Preparation and properties evaluation of polyimide-matrix nanocomposites reinforced with glutamine functionalized multi-walled carbon nanotube

Kalchounaki, Edris Kianpour; Farhadi, Asadollah; Zadehnazari, Amin

doi:10.1007/s00289-018-2358-2

Cited by 6 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermal stability of the films was measured by a TG test under nitrogen atmosphere. The TGA of pure PI and MWCNTs-ODA/PI composite films are shown in Figure 5(a); compared with the work of Kalchounaki et al [55], the composite film prepared by this work has better thermal stability. The weight loss of the pure PI film at 500°C was 2.1121%, and the residual at 800°C was 55.9794%.…”

Section: Thermal Properties Of the Pi And Mwcnts-oda/pimentioning

confidence: 58%

Functionalized Multiwalled Carbon Nanotube-Reinforced Polyimide Composite Films with Enhanced Mechanical and Thermal Properties

Chen

Liu

et al. 2019

International Journal of Polymer Science

View full text Add to dashboard Cite

Polyimide- (PI-) based nanocomposites containing the 4,4′-diaminodiphenyl ether- (ODA-) modified multiwalled carbon nanotube (MWCNT) filler were successfully prepared. The PI/MWCNTs-ODA composite films exhibit high thermal conductivity and excellent mechanical property. The optimal value of thermal conductivity of the PI/MWCNTs-ODA composite film is 0.4397 W/mK with 3 wt.% filler loading, increased by 221.89% in comparison with that of the pure PI film. In addition, the tensile strength of the PI/MWCNTs-ODA composite film is 141.48 MPa with 3 wt.% filler loading, increased by 20.74% in comparison with that of the pure PI film. This work develops a new strategy to achieve a good balance between the high thermal conductivity and excellent mechanical properties of polyimide composite films by using functionalized carbon nanotubes as an effective thermal conductive filler.

show abstract

Section: Thermal Properties Of the Pi And Mwcnts-oda/pimentioning

confidence: 58%

Functionalized Multiwalled Carbon Nanotube-Reinforced Polyimide Composite Films with Enhanced Mechanical and Thermal Properties

Chen

Liu

et al. 2019

International Journal of Polymer Science

View full text Add to dashboard Cite

show abstract

“…These inorganic nanoparticles, including graphene, graphene oxide, silica, carbon nanotube, zeolite and attapulgite, were modified by silane coupling agents, diisocyanate, silsesquioxane, etc., and then added to the PI matrix. The obtained PI nanocomposite films exhibited significant enhancements in comprehensive performance [27][28][29][30][31][32]. However, not all nanoparticles could be successfully modified during the modification process.…”

Section: Introductionmentioning

confidence: 98%

Fluorinated Linear Copolyimide Physically Crosslinked with Novel Fluorinated Hyperbranched Polyimide Containing Large Space Volumes for Enhanced Mechanical Properties and UV-Shielding Application

Chen

Guo

et al. 2020

Polymers

View full text Add to dashboard Cite

Fluorinated hyperbranched polyimide (FHBPI), a spherical polymer with large space volumes, was developed to enhance fluorinated linear copolyimide (FPI) in terms of mechanical, UV-shielding, and hydrophobic properties via simple blend and thermal imidization methods. FPI possessed superior compatibility with FHBPI, and no obvious phase separation was found. The incorporation of FHBPI led to the formation of physical crosslinked network between FPI and FHBPI, which markedly improved the mechanical properties of the FPI, resulting in maximum enhancement of 83% in tensile strength from 71.7 Mpa of the pure FPI to 131.4 Mpa of the FPI/FHBPI composite film containing 15 wt % of FHBPI. The introduction of FHBPI also changed the surface properties of composites from hydrophilicity to hydrophobicity, which endowed them with outstanding dielectric stability. Meanwhile, the thin FPI/FHBPI composites kept the high transparency in the visible spectrum, simultaneously showing enhanced UV-shielding properties and lifetimes under intense UV ray. This was attributed to the newly formed charge transfer complex (CTC) between FHBPI and FPI. Moreover, the FPI/FHBPI composites possessed preeminent thermal properties. The properties, mentioned above, gave the composites enormous potential for use as UV-shielding coatings in an environment filled with high temperatures and strong ultraviolet rays.

show abstract

“…Polymer nanocomposites with the unique combination of organic and inorganic counterparts results in diversified application performance [1]. This approach represents a merger between the traditional organic and nanosized inorganic materials, resulting in compositions that are truly hybrid [2].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical stability evaluation of cosmetic formulations of PVA, starch and MMT clay nanocomposites

Chakraborty¹,

Anoop²,

George³

et al. 2019

SN Appl. Sci.

View full text Add to dashboard Cite

In the present work, the polymer matrix is comprised of Polyvinyl alcohol and natural polymer starch with the addition of an absorbent clay bentonite. These were effectively blended followed by reinforcement in the form of gold, silver, and zinc oxide nanoparticles. Films were prepared and the dispersion of the nanoparticles was studied by scanning electron microscopy and ultraviolet spectroscopy. The mechanical properties and thermal stability of such nanocomposites as compared to the polymeric blend was studied and an enhancement in properties was observed. Furthermore the use of PVA, bentonite and these nanoparticles in facial masks led to the investigation of cosmetic applications of the polymer nanocomposites thus prepared. This composition was found to be stable in face masks for a period of 12 weeks and reported no irritation when applied to the skin.

show abstract

Preparation and properties evaluation of polyimide-matrix nanocomposites reinforced with glutamine functionalized multi-walled carbon nanotube

Cited by 6 publications

References 25 publications

Functionalized Multiwalled Carbon Nanotube-Reinforced Polyimide Composite Films with Enhanced Mechanical and Thermal Properties

Functionalized Multiwalled Carbon Nanotube-Reinforced Polyimide Composite Films with Enhanced Mechanical and Thermal Properties

Fluorinated Linear Copolyimide Physically Crosslinked with Novel Fluorinated Hyperbranched Polyimide Containing Large Space Volumes for Enhanced Mechanical Properties and UV-Shielding Application

Physicochemical stability evaluation of cosmetic formulations of PVA, starch and MMT clay nanocomposites

Contact Info

Product

Resources

About