PowerSorb

  The addition of light stabilizers for plastics  can effectively prevent the photodegradation of polymers. TINTOLL's comprehensive range of solutions including hindered amine light stabilizers  (commonly known as HALS), hindered benzoates and UV absorbers can mitigate degradation of plastics exposed to harmful UV radiation and achieve excellent lifetime.   The UV light stabilizer  can be divided into UV absorbers and hindered amine light stabilizers (HALS):   UV absorbers slow down the degradation process by preferentially absorbing harmful UV radiation and dissipating it as heat.   Therefore, UV absorbers can effectively protect the contents in packaging products (such as wrapping films or bottles, etc.). UV absorbers also protect other UV-sensitive additives such as pigments and flame retardants.   HALS are very effective stabilizers for polymers, especially polyolefins. They do not absorb UV radiation, but inhibit polymer degradation by scaven...

  TINTOLL offers the plastics industry a range of hindered benzoates, benzotriazoles, benzoxazinones, benzophenones and triazine as high-performance UV absorbers  for polymers that effectively protect adhesives, plastics, coatings and elastomers from the damaging effects of outdoor weathering caused by exposure to UV light. The selection of absorber uv  should consider the characteristics, melting point, volatility, solubility and absorption spectrum of different products.   Types of UV Absorbers   for P olymers Benzoate UV Absorber Benzophenone UV Absorber Benzotriazole UV Absorber Benzoxazinone UV Absorber Benzylidene Malonate UV Absorber Cyanoacrylate UV Absorber Oxanilide UV Absorber Triazine UV Absorber Nickel Quencher   How to choose UV  absorber chemical ? Chemical UV absorbers  are a common way to protect plastics from UV rays. When choosing a UV  light absorber  additive, you can consider the following factors:   Type and m...

  Free radical photoinitiators  react differently when exposed to UV light. Depending on their reactivity, they are classified as Norrish Type I or Norrish Type II photoinitiators.   Norish Type I initiators are typically compounds containing a benzoyl group which, when exposed to UV light, cleaves to produce two highly reactive free radicals, at least one of which reacts with the monomer to initiate polymerization.   type 1 photoinitiator s are irreversibly incorporated into the polymer matrix.       Norrish Type II photoinitiators require hydrogen donors to react when exposed to UV light, and the most common of these hydrogen donors are amines (amine synergists). Upon UV irradiation, the Type II photoinitiator abstracts a hydrogen atom from the synergist used to form two very reactive alkylamino radicals, which subsequently initiate polymerization. Type II photoinitiators are generally not incorporated during the reaction, but synergists are incorpor...

  Amine synergists are also called photosensitizers. Photosensitizers are molecules that do not absorb radiation or initiate polymerization reactions but can increase the effective rate of photoinitiator activity. They are usually amine compounds. The role of photosensitizer is to increase the photosensitivity of photoinitiator and accelerate the curing of the system.   The amine synergist  acts as an active hydrogen donor to excite the photoinitiator. Abstraction of hydrogen generates very reactive alkylamino radicals, which subsequently initiate polymerization.   TINTOLL is a leading manufacturer and supplier of photoinitiators, which is also one of the cornerstone businesses of TINTOLL. Our product portfolio covers free radical and cationic photoinitiators (photo-acid generators) as well as acrylated amine synergist s. UV-curable materials are widely used in graphic arts, industrial coatings, adhesives, printed circuit boards, and 3D printing. TINTOLL provides app...