Research on the weathering resistance of poly(urethane-methacrylate)materials
LI Min
ZHOU Li-ming
GAO Li-jun
WANG Gang-qiang
FANG Shao-ming
Abstract：Poly(urethane-methacrylate)macromonomers were synthesized based on isophorone diisocyanate (IPDI),poly (tetrahydrofuran ) 1000 (PTMEG-1000 ),poly (ethylene glycol )400 (PEG-400 ) andβ-hydroxyethyl methacrylate (HEMA).Then high transparent poly(urethane-methacrylate)materials with weathering resistance were prepared by the polymerization of the macromonomers using 2,2-azo-bis-iso-bu-tyro-nitrile (AIBN)as initiator.The obtained PU materials were characterized by FT-IR and XRD.The weathering resistance of PU materials was characterized under the condition of freezing and UV-irradiation. The results showed that the thermal stability and optical performance of PU materials increased with increasing PTMEG-1000 content,and comprehensive performance in freezing and UV-irradiation conditions were almost the same results as at room temperature,which indicated the materials owned good weather-ability.PU-3 exhibited outstanding performance.The tensile strength and the transmittance of PU-3 were 13.1 MPa and 92.1% at room temperature,respectively.Its tensile strength and transmittance were 15.7 MPa and 84.7%at -26 ℃,respectively.And its tensile strength and transmittance were 11.5 MPa and 74.3% after UV-irradiation,respectively.
Keywords：poly(urethane-methacrylate)weathering resistancetransparent
Publication Date：2014-11-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 43-47 )