Jump to main content
Jump to site search

Issue 3, 2019
Previous Article Next Article

Thermosetting polyurethanes prepared with the aid of a fully bio-based emulsifier with high bio-content, high solid content, and superior mechanical properties

Author affiliations

Abstract

In this paper, a novel, fully bio-based emulsifier has been successfully prepared from epoxidized soybean oil and glutaric acid through a solvent-free and self-catalysis method. The effects of reaction time and carboxyl : epoxy molar ratios on the structures of the emulsifier were systematically investigated. This novel emulsifier exhibits properties similar to those of dimethylolpropionic acid (DMPA) and dimethylolbutanoic acid (DMBA), with hydroxyl groups serving as crosslinking agents and the carboxylic acid group acting as an ionic segment. In order to validate the robustness of this emulsifier, a series of anionic, waterborne polyurethane dispersions were prepared from typical polyols (vegetable oil- and petroleum-based). The structure of this emulsifier and its good compatibility with bio-based polyols confer the resulting dispersions excellent storage stability and high solid content (up to 45%). The prepared waterborne polyurethane films exhibited higher toughness and thermal stability than traditional solvent-based polyurethane films and waterborne polyurethane films prepared from DMPA and DMBA. Moreover, a high bio-based content of up to 74% was achieved for the prepared polyurethanes. This new environmentally friendly, liquid emulsifier, prepared using a solvent-free and self-catalysis synthetic route, can potentially replace typical petroleum-based emulsifiers for the production of waterborne polyurethanes.

Graphical abstract: Thermosetting polyurethanes prepared with the aid of a fully bio-based emulsifier with high bio-content, high solid content, and superior mechanical properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Nov 2018, accepted on 15 Dec 2018 and first published on 17 Dec 2018


Article type: Paper
DOI: 10.1039/C8GC03560A
Citation: Green Chem., 2019,21, 526-537

  •   Request permissions

    Thermosetting polyurethanes prepared with the aid of a fully bio-based emulsifier with high bio-content, high solid content, and superior mechanical properties

    L. Liu, J. Lu, Y. Zhang, H. Liang, D. Liang, J. Jiang, Q. Lu, R. L. Quirino and C. Zhang, Green Chem., 2019, 21, 526
    DOI: 10.1039/C8GC03560A

Search articles by author

Spotlight

Advertisements