LI Min, ZHOU Li-ming, GAO Li-jun, et al. Research on the weathering resistance of poly (urethane-methacrylate) materials[J]. Journal of Light Industry, 2014, 29(6): 43-47. doi: 10.3969/j.issn.2095-476X.2014.06.011
Citation:
LI Min, ZHOU Li-ming, GAO Li-jun, et al. Research on the weathering resistance of poly (urethane-methacrylate) materials[J]. Journal of Light Industry, 2014, 29(6): 43-47.
doi:
10.3969/j.issn.2095-476X.2014.06.011
Research on the weathering resistance of poly (urethane-methacrylate) materials
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He'nan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry,Zhengzhou 450001,China
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Received Date:
2014-09-05
Available Online:
2014-11-15
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Abstract
Poly (urethane-methacrylate) macromonomers were synthesized based on isophorone diisocyanate (IPDI), poly (tetrahydrofuran) 1000 (PTMEG-1000), poly (ethylene glycol) 400 (PEG-400) and β-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-butyro-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 weatherability. 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.
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Proportional views
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