NATURAL SUBSTANCES AS PROTECTIVE AGENTS AGAINST PHOTODEGRADATION

This study explores the use of natural substances as resources in the development of UV protective coatings, offering an environmentally sustainable alternative to toxic and synthetic materials, mostly organic compounds used as UV stabilizers in various industrial and commercial applications. Therefore, the focus of this study is on different natural sources possessing protective properties. To ensure adequate protection, it is necessary to carefully consider and properly blend various substances that possess protective properties against UV radiation and free radical formation. UV radiation poses a constant threat to materials, promoting oxidative stress that can cause serious damage. In this context, UV stabilizers play a crucial role in protecting materials from degradation caused by solar radiation. Their ability to absorb or reflect UV radiation is crucial for preserving the physical and chemical properties of polymeric materials, coatings, inks and coloration. On the other hand, antioxidants are additives that protect against oxidative stress by neutralizing free radicals - reactive compounds that are formed under the influence of UV radiation and can cause material damage. UV stabilizers, in synergy with antioxidants, often result in optimal material protection, ensuring durability and preservation of the aesthetic and functional properties of products. Therefore, a formulation that includes carefully selected UV stabilizers and antioxidants, is crucial for achieving a high level of protection against the harmful effects of UV radiation and free radicals. This integrated approach not only ensures material durability but also contributes to sustainability. This study emphasizes the need for further research aimed at developing new technologies that could enhance the interaction between UV stabilizers and antioxidants to achieve optimal material protection.