The optical shielding performances and mechanisms of green flame-retardant two-component matte films under various application conditions

Herein, we meticulously investigated the optical shielding performances and mechanisms of green flame-retardant two-component waterborne polyurethane matte films based on a previous study. The relevant performances were evaluated by changing various environmental factors including nanoparticle content, pH, temperature and storage-time. Specifically, upon combination with TiO₂, the ultraviolet-light transmittance was reduced to 1.9% and the 60° glossiness decreased by 63%. When the pH was 8.0, the shielding efficiency and transmittance of ultraviolet light were 100% and 0%, respectively. The 60° glossiness of spin-films increased with an increase in storage time. Besides, TiO₂ nanoparticles were beneficial for delaying the thermal decomposition via synergistic flame retardance.

Herein, we meticulously investigated the optical shielding performances and mechanisms of green flame-retardant two-component waterborne polyurethane matte films based on a previous study.

Eco-friendly functional two-component flame-retardant waterborne polyurethane coatings: a review

Green functional two-component flame-retardant waterborne polyurethane (2K-FWPU) coatings possess outstanding green traits, such as providing eco-friendly protection, having low toxicity, and generating no pollution.