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- Title
Research on the weathering resistance of poly (urethane-methacrylate) materials.
- Authors
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) 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-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°C, respectively. And its tensile strength and transmittance were 11.5 MPa and 74.3% and UV-irradiation, respectively.
- Subjects
POLYURETHANES; METHACRYLATES; MACROMONOMERS; WEATHERING; CHEMICAL synthesis
- Publication
Journal of Zhengzhou University of Light Industry, Natural Science Edition, 2014, Vol 29, Issue 6, p43
- ISSN
2095-476X
- Publication type
Article
- DOI
10.3969/j.issn.2095-476X.2014.06.011