Ultraviolet absorber is one of the important varieties of polymer additives, according to the chemical structure and mechanism of action, it is divided into Benzophenone, Salicylate, Triazine and benzotriazole and so on. Among them, Benzotriazole uv absorbers have the characteristics of stable chemical property, low toxicity and strong uv absorption! It can weaken the photodegradation and improve the light resistance of polymer materials. Therefore, it has good compatibility with most polymer materials, so it can be widely used in polyolefin, polyester resin, coating, food packaging and other synthetic materials.
The action mechanism of benzotriazole UV absorbers is similar to that of benzophenone. In its structure, there are also intramolecular hydrogen bond rings (formed by hydroxyl & nitrogen on triazole group). After it absorbs UV light, hydrogen bond breaks or forms photo-tautomers, converting harmful UV energy into harmless heat energy, then release it.
Benzotriazole UV absorbers has a good absorption on the range of 280-380nm. OMNISTAB UV326/UV327/UV328/UV329 falls into this category, which are widely used in PVC, ABS, PC, PU and other materials.
OMNISTAB UV326 has the characteristic of strong&wide UV absorption band. So it can be widely used in photographic materials such as color film, polymer material, external protective coating and many other fields.
OMNISTAB UV327 and UV328 do not form nonferrous metals salt during production of PVC. Its good chemical stability, low volatility, especially suitable for polyolefin.
As an excellent UV absorber for PA, OMNISTAB UV329 can effectively improve its stability and weather resistance of nylon finished products. UV329 makes nylon become a more excellent engineering plastics in today’s industrial manufacture. In addition, recently the novel coronavirus vaccine as one of the hot topics has aroused the common attention of the world. OMNISTAB UV329 is also a uv absorber that can be used in the Syringe PP material, which also shows its advantages of low toxicity and good transmittance in visible light range.
It has been reported that light stabilizers(HALS) and Benzotriazole UV absorbers have synergistic effects in some cases. This undoubtedly improves the market prospects of benzotriazole UV absorbers.
Under the background of the strict control of Carbon Emissions by global environmental protection policies, we are still able to guarantee the quality and stable supply of these additives.
For more information on above UV absorbers, please consult relevant sales and technical team of Deltachem, or you can visit official website www.deltachem.net . Deltachem Co., Ltd is looking forward to your inquiry!
