UV rays are also harmful to humans and cause various diseases, and the most common radical in the human body is monoatomic oxygen. Ultraviolet or UV rays, upon hitting the polymer chain, cause it to break and create free radicals. These radicals are destructive and create a destructive cycle such as self-antioxidation, which causes plastic aging and polymer degradation.

What is considered in the production of Armen Polymer’s anti-UV masterbatch:

1. Climate and weather
2. The intensity of monsoon winds, for example, is different in desert and mountain areas
3. The intensity of radiation, for example, the intensity of sunlight is high in the Middle East, and in addition to HIPS, NI Quencher compounds are used in the masterbatch anti-UV composition, which have a synergistic effect in controlling harmful UV, so that in areas such as Northern Europe, where the light is very weak And the greenhouse plant needs it and it must be directed inside, so the type of stabilizer (light, heat, oxidation) is different.
4. The sudden change of night and day temperature and the intensity of oxidation, which generally occurs in all Masterbatch Anti-UV Armen Polymer grades, from the first-generation antioxidant that resists pressure and temperature during the production process, and the second-generation antioxidant in order to expose the product to the outside environment. work goes
5. The alkaline and acidic conditions of the environment, such as the use of pesticides containing acidic compounds that react with HALS with a sulfur nature and cause its destruction, considering these conditions, the new generation of HALS Stabilizer, which actually stabilizes HALS against factors It is an environment, it is used, it is chosen.
6. Due to the tendency of hals to migrate to the surface of the part or nylon and reduce its effect, and on the other hand, the synergistic effect of hals, which is actually a controller of free radical destruction and its transformation into a stabilizer during the reaction, is one of BASF’s UV absorbers. It is used to absorb ultraviolet rays (UVA) and convert them into heat and fluorescent radiation in the masterbatch formula of Armen Polymer Anti-UV.
7. The choice of polymer base in the formulation is very important because different polymers have different sensitivity to light and their degradation rate is very different.
8. Hydrolysis and the use of the appropriate agent in the masterbatch anti-UV formula. Hydrolysis is a chemical reaction in which chemical compounds break down in contact with water. Ultraviolet rays can accelerate this reaction and increase the rate of degradation of polymers. Hydrolysis of polymers occurs in high temperature reactions, such as injection molding. In some cases, this happens to change the structure of the polymer and lose its properties. This reaction occurs mainly in polymers that absorb a lot of moisture and have water-sensitive groups in the main branch of the polymer. Some polymers exposed to polyesters, polyanhydrides, polyamides, polyethers and polycarbonates. Polymers with an all-carbon backbone, such as polyolefins, are typically resistant to hydrolysis.