Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biomacromolecules. 2007 Dec;8(12):3687-92. Epub 2007 Nov 21.

A high strength nanocomposite based on microcrystalline cellulose and polyurethane.

Author information

  • 1Fibre and Polymer Technology, Royal Institute of Technology, KTH, 100 44 Stockholm, Sweden.

Abstract

A high-strength elastomeric nanocomposite has successfully been prepared by dispersing microcrystalline cellulose in a polyurethane matrix. The resulting nanocomposites show increased strain-to-failure in addition to increased stiffness and strength compared to the unfilled polyurethane. The optimal composite contained 5 wt % cellulose. The average true strength for this composition was 257 MPa, compared with 39 MPa for the neat polyurethane, and showed the highest strain-to-failure. The improvements of stiffness, strength, as well as strain-to-failure are believed to be due to good interaction, by both covalent and hydrogen bonds, between the polyurethane and the cellulose nanofibrils.

PMID:
18030998
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Write to the Help Desk