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Thursday, 04 June 2020
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Raw materials & technologies, Technologies, Waterborne coatings

Characterisation of waterborne polyurethane for ecofriendly functional floor platestar

Wednesday, 12 May 2010

Researchers from Republic of Korea measured several properties of waterborne polyurethany acrylate containing nonmetallic mineral materials by Fourier transform infrared spectroscopy (FT-IR) andother tests to see how the improved results can be explained.

waterborne polyurethane for ecofriendly functional floor platestar Source: Huntsman

waterborne polyurethane for ecofriendly functional floor platestar Source: Huntsman

Eun-Hee Kima from School of Nano & Advanced Materials Engineering, Changwon National University and other researchers from the Republic of Korea incorporated three types of nonmetallic mineral particles (CaCO3, TiO2 and loess) into waterborne polyurethane acrylate (PUA) to improve the surface properties of ecofriendly floor tiles. They measured several properties of PUA containing nonmetallic mineral materials by Fourier transform infrared spectroscopy (FT-IR), a dynamic mechanical thermal analyzer (DMTA), swelling tests, and contact angle measurement. Upon decreasing the molecular weight between crosslinks (variation of molecular weight of the polyol), the modulus and glass transition temperature (Tg) of the PUA film increased because of the increase in crosslinking density. Resistance properties such as swelling and contact angle against water were enhanced with the addition of nonmetallic mineral particles because of the increase in the hydrophobic nature of the polymer matrix. Please read more in "Prorgess in Organic Coatings" Volume 67, pages 102-106.

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