Detail publikačního výsledku

Well-dispersed polyurethane/cellulose nanocrystal nanocomposites synthesized by a solvent-free procedure in bulk

KUPKA, V.; ZHOU, Q.; ANSARI, F.; TANG, H.; ŠLOUF, M.; VOJTOVÁ, L.; BERGLUND, L.; JANČÁŘ, J.

Originální název

Well-dispersed polyurethane/cellulose nanocrystal nanocomposites synthesized by a solvent-free procedure in bulk

Anglický název

Well-dispersed polyurethane/cellulose nanocrystal nanocomposites synthesized by a solvent-free procedure in bulk

Druh

Článek WoS

Originální abstrakt

Polyurethane (PU) nanocomposites utilizing cellulose nanocrystals (CNCs) as nanofiller and amorphous PU matrix were synthesized in a novel solvent-free bulk process. A green nanofiller, CNCs, was studied as reinforcement and was further modified by grafting poly(ethylene glycol) (PEG) on the CNC surface (CNC-PEG). Transmission electron microscopy revealed an excellent dispersion of the PEGylated CNC nanoparticles in the PU matrix, whereas as-received CNCs formed agglomerates. The results indicated strong improvements in tensile properties with Young's modulus increasing up to 50% and strength up to 25% for both, PU/CNC and PU/CNC-PEG nanocomposites. The enhanced tensile modulus was attributed to stiff particle reinforcement together with an increase in glass transition temperature.

Anglický abstrakt

Polyurethane (PU) nanocomposites utilizing cellulose nanocrystals (CNCs) as nanofiller and amorphous PU matrix were synthesized in a novel solvent-free bulk process. A green nanofiller, CNCs, was studied as reinforcement and was further modified by grafting poly(ethylene glycol) (PEG) on the CNC surface (CNC-PEG). Transmission electron microscopy revealed an excellent dispersion of the PEGylated CNC nanoparticles in the PU matrix, whereas as-received CNCs formed agglomerates. The results indicated strong improvements in tensile properties with Young's modulus increasing up to 50% and strength up to 25% for both, PU/CNC and PU/CNC-PEG nanocomposites. The enhanced tensile modulus was attributed to stiff particle reinforcement together with an increase in glass transition temperature.

Klíčová slova

Cellulose, Cellulose derivatives, nanocrystals CNC

Klíčová slova v angličtině

Cellulose, Cellulose derivatives, nanocrystals CNC

Autoři

KUPKA, V.; ZHOU, Q.; ANSARI, F.; TANG, H.; ŠLOUF, M.; VOJTOVÁ, L.; BERGLUND, L.; JANČÁŘ, J.

Rok RIV

2019

Vydáno

29.01.2019

Nakladatel

John Wiley and Sons Inc.

ISSN

0272-8397

Periodikum

POLYMER COMPOSITES

Svazek

40

Číslo

S1

Stát

Spojené státy americké

Strany od

456

Strany do

465

Strany počet

10

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT148230,
  author="Vojtěch {Kupka} and Qi {Zhou} and Farhan {Ansari} and Hu {Tang} and Miroslav {Šlouf} and Lucy {Vojtová} and Lars A. {Berglund} and Josef {Jančář}",
  title="Well-dispersed polyurethane/cellulose nanocrystal nanocomposites synthesized by a solvent-free procedure in bulk",
  journal="POLYMER COMPOSITES",
  year="2019",
  volume="40",
  number="S1",
  pages="456--465",
  doi="10.1002/pc.24748",
  issn="0272-8397"
}

Dokumenty

Well-Dispersed Polyurethane-Cellulose Nanocrystal Nanocomposites Synthesized by a Solvent-Free Procedure in Bulk 2019