Detail publikace

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

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.

Klíčová slova

Cellulose, Cellulose derivatives, nanocrystals CNC

Autoři

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

Vydáno

29. 1. 2019

Nakladatel

John Wiley and Sons Inc.

ISSN

0272-8397

Periodikum

Polymer Composites

Ročník

Číslo

Stát

Spojené státy americké

Strany od

456

Strany do

465

Strany počet

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"
}