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"long-term yellowing behavior of thermoplastic polyurethanes under uv exposure"
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- s. kim et al., "effect of diisocyanate structure on the thermal and optical properties of polyurethanes", polymer testing, vol. 80, 2019
- a. patel et al., "long-term yellowing behavior of thermoplastic polyurethanes under uv exposure", journal of applied polymer science, 2020
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