Synthesis of polyurethane acrylate hybrids containing fluorine and siloxane by the sol–gel method for UV-curable coatings

Autor: Mert Çınar, Sevim Karataş
Přispěvatelé: Çınar M., KARATAŞ S.
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Characterization of Polymers
Polymers and Plastics
Temel Bilimler (SCI)
POLYMER SCIENCE
MATERIALS SCIENCE
MULTIDISCIPLINARY
Fizik
Physical Chemistry
MATERIALS SCIENCE
Kimya
PHYSICS
Coating
Polimerler ve Plastikler
CHEMISTRY
Materials Chemistry
Yoğun Madde Fiziği
PHYSICS
CONDENSED MATTER
MALZEME BİLİMİ
ÇOKDİSİPLİNLİ
Engineering
Computing & Technology (ENG)
Sol–gel technique
Malzeme Kimyası
Temel Bilimler
Polimer Karakterizasyonu
Fizikokimya
Mühendislik
Bilişim ve Teknoloji (ENG)
General Chemistry
Condensed Matter 1: Structural
Mechanical and Thermal Properties
Condensed Matter Physics
Yoğun Madde 1:Yapısal
Mekanik ve Termal Özellikler
Polyurethane acrylate
Genel Kimya
POLİMER BİLİMİ
Fizik Bilimleri
Natural Sciences (SCI)
Physical Sciences
Engineering and Technology
Mühendislik ve Teknoloji
Hybrid materials
UV-curing
Natural Sciences
FİZİK
YOĞUN MADDE
Malzeme Bilimi
Popis: © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.In this study, five different UV-curable polyurethane acrylate (PUA) resins (B, H:20, H:40, P:10/H:20, and P:20/H:40) were synthesized using different amounts of polyols [(2,2-bis(4-β-hydroxyethoxy) phenyl 6F propane (HEPFA); polydimethylsiloxane (PDMS); propylene glycol) which reacted with isophorone diisocyanate (IPDI) and end-capped with 2-hydroxyethyl methacrylate (HEMA). Then, a series of UV-curable PUA formulations and their nano-hybrids (B/S10-30, H20/S10-S30, H40/S10-S30, P10:H20/S10-S30, P20:H40/S10-S30) were prepared by the sol–gel method using different amounts of sol–gel solutions. The obtained formulations were cured with UV rays. The effects of PDMS, HEPFA and sol–gel content on the physical, thermal and mechanical properties of the UV-curable PUA coatings were investigated. When the HEPFA, PDMS and sol–gel content were increased in the urethane base formulation (B), the gloss increased from 98° to 117°, 133° and 137° for B, H40, P20:H40 and P20:H40/S30, respectively. TGA analysis showed that the decomposition temperatures shifted significantly upward with increasing amounts of HEPFA, PDMS and the sol–gel precursor. The water absorption of the hybrids decreased from 4.7 wt% (B) to 2.5 wt% (P20:H40/S30). The nano-hybrid coatings exhibited higher contact angle values for deionized water/ethylene glycol compared to the pure PUAs, ranging from 52°/48° (B) to 78°/76° (P20:H40/S30). The SEM analysis showed that the nano-silica particles were scattered in the polymer matrix without serious agglomeration when 30 wt% of sol–gel solution was added to B, H40 and P20:H40. These results indicate that the overall properties of the PUAs and their hybrids were improved and that they could potentially be used as coatings in practical applications.
Databáze: OpenAIRE
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