Journal
POLYMERS
Volume 13, Issue 24, Pages -Publisher
MDPI
DOI: 10.3390/polym13244283
Keywords
waterborne polyurethanes; polyurethane coatings; polydimethylsiloxanes; hydrophobicity; marine applications
Categories
Funding
- Material and Component Development - Korea Evaluation Institute of Industrial Technology [20013166]
- National Research Foundation of Korea (NRF) - MSIT
- NRF [-2019R1G1A1100122]
- Technology Innovation Program [1415173686, 20015987]
- Ministry of Trade, Industry and Energy (MOTIE)
- Korea Evaluation Institute of Industrial Technology (KEIT) [20013166] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2019R1G1A1100122] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The study focused on the thermal and mechanical properties, water resistance, and dimensional stability of PDMS-modified waterborne polyurethanes.
A series of waterborne polyurethane dispersions (WPUs) modified with hydroxyl-terminated polydimethylsiloxane (PDMS) were prepared by incorporating PDMS into the soft segments of polyurethane chains. The structural characteristics of the prepared samples were analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and particle size analysis (PSA). The effect of PDMS content on the thermal and mechanical properties of PDMS-modified waterborne polyurethanes (PS-WPU) was investigated. In addition, the water resistance and dimensional stability of the PS-WPU were investigated by measuring its water absorption ratio and water contact angle along with universal testing machine measurements.
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