Multifunctional polyurethane coatings derived from undecylenic acid

TRADELABOR has more than 20 years of experience in the control and treatment of air, working with an experienced and qualified technical staff and with the most advanced technology in this area, which together guarantee the quality of the services provided.

 

 

Renewable resource based polyol derived from undecylenic acid, a by-product of castor oil, was successfully synthesised by three consecutive reactions: methylation, thiol-ene addition, and amidation.

The biobased polyol is a sulfur- and nitrogen-containing polyol. The structure was confirmed by FTIR, NMR, and mass spectroscopic techniques. The undecylenic acid based polyol was used as a polyol along with phosphated cardanol-based polyol in the preparation of polyurethane coatings. The obtained polyurethanes were assessed for their properties by various techniques such as thermogravimetric analysis (TGA), dynamic mechanical and thermal analysis (DMTA), Universal testing machine (UTM) and electrochemical study.

Drastically decreased corrosion rate

Interestingly, the biobased polyol improved mechanical property such as toughness of the material when it was incorporated in different weight percentages to the phosphated cardanol-based polyol. Moreover, the synergistic effect of the phosphorous and biobased polyol with the elements – sulfur and nitrogen, enhanced the anti-corrosion and antimicrobial natures of the polyurethane coating. The corrosion rate was drastically decreased from 3.0 × 10–4 to 1.8 × 10–7 mm per year for the prepared polyurethane coatings.

Continue at: https://www.european-coatings.com/Raw-materials-technologies/Applications/Multifunctional-polyurethane-coatings-derived-from-undecylenic-acid/(cpg)/LA0093?cpg=LA0093&utm_source=newsletter&utm_medium=email&utm_campaign=EC-NL-2019-07-24&utm_content=Multifunctional-polyurethane-coatings-derived-from-undecylenic-acid&uid=678731

Manostaxx
Manostaxx

 

http://www.manostaxx.com

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *