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  2. UV-328 - Wikipedia

    en.wikipedia.org/wiki/UV-328

    UV-328 is a light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homopolymers and copolymers, acrylic polymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers and adhesives. [5]

  3. Polymer stabilizer - Wikipedia

    en.wikipedia.org/wiki/Polymer_stabilizer

    Polymer stabilizers (British English: polymer stabilisers) are chemical additives which may be added to polymeric materials to inhibit or retard their degradation. Mainly they protect plastic and rubber products against heat, oxidation, and UV light.

  4. Photo-oxidation of polymers - Wikipedia

    en.wikipedia.org/wiki/Photo-oxidation_of_polymers

    UV stabilizers, such as benzophenones, work by absorbing the UV radiation and preventing the formation of free radicals. Depending upon substitution, the UV absorption spectrum is changed to match the application. Concentrations normally range from 0.05% to 2%, with some applications up to 5%. Frequently, glass can be a better alternative to ...

  5. 2-(2-Hydroxyphenyl)-2H-benzotriazoles - Wikipedia

    en.wikipedia.org/wiki/2-(2-Hydroxyphenyl)-2H...

    UV-360 [dimer linked via methylene group] 1,1,3,3-tetramethylbutyl – 2- ... -2H-benzotriazoles are used as UV stabilizers in lacquers and plastics. [2] References

  6. Stabilizer (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Stabilizer_(chemistry)

    Stabilizing additives for plastics are produced in different forms. The trend is towards fluid systems, pellets, and increased use of masterbatches. There are monofunctional, bifunctional, and polyfunctional stabilizers. Some kinds of stabilizers are: [3] [4] antioxidants these prevent autoxidation of materials and come in 3 primary forms.

  7. Bisphenol A - Wikipedia

    en.wikipedia.org/wiki/Bisphenol_A

    4,4'-Dihydroxybenzophenone - used as a UV stabilizer in cosmetics and plastics; Dinitrobisphenol A - a proposed metabolite of BPA, which may show increased endocrine disrupting character; HPTE - a metabolite of the synthetic insecticide methoxychlor; Others. 2,2,4,4-Tetramethyl-1,3-cyclobutanediol - next generation BPA replacement

  8. Photodegradation - Wikipedia

    en.wikipedia.org/wiki/Photodegradation

    Photodegradation of plastics and other materials can be inhibited with polymer stabilizers, which are widely used. These additives include antioxidants, which interrupt degradation processes. Typical antioxidants are derivatives of aniline. Another type of additive are UV-absorbers. These agents capture the photon and convert it to heat.

  9. Optically active additive - Wikipedia

    en.wikipedia.org/wiki/Optically_active_additive

    Optically active additive (OAA) is an organic or inorganic material which, when added to a coating, makes that coating react to ultraviolet light. This effect enables quick, non-invasive inspection of very large coated areas during the application process allowing the coating inspector to identify and concentrate on defective areas, thus reducing inspection time while assuring the probability ...

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