What is tinuvin P?
Characterization Tinuvin P is an ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, imparting good light stability to a wide variety of polymers. It also has a high degree of photostability over long periods of light exposure.
What is tinuvin used for?
Tinuvin® for Plastics. BASF’s light stabilizers Tinuvin® protect plastics parts against all sorts of weather conditions that lead to loss of mechanical properties and discoloration of surfaces.
What Tinuvin 770?
Tinuvin 770 [bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate] is a pharmacologically active agent used worldwide as a light stabilizer for plastic materials. In vitro studies show that it is an L-type Ca2+ channel and neuronal nicotic acethylcholine receptor blocker.
What are UV absorbers?
Ultraviolet absorbers protect materials by converting absorbed ultraviolet rays into low-impact heat and energy through chemical reactions. Ultraviolet absorbers are mainly used to curtail photodegradation in plastics by playing a key role in suppressing the generation of radicals that cause plastic to degrade.
How does UV absorber work?
UV absorbers, work by targeting the incident radiation before it prevents any initial degradation. The absorb the highly energetic UV light and re-emit it at a lower energy state thereby dissipating the energy in a less dangerous form. The most important class of UV absorbers are the hydroxybenzophenones.
How can you prevent UV degradation?
There are several ways of avoiding UV degradation in plastics — by using stabilizers, absorbers or blockers. For many outdoor applications, the simple addition of carbon black at around a 2% level will provide the protection for the structure by the blocking process.
Are UV stabilizers toxic?
This disadvantage not only influences the durability of its effectiveness but can cause pollution to the environment because most of benzophenone UV-absorbers are toxic to humans or animals14,15.
How do you use UV stabilized plastic?
One of the most simple and effective methods of achieving UV stabilization in polymers is by coating them with an inert material. For instance, the structural and chemical integrity of the polymer resin is preserved as the added layer prevents any harmful radiation from passing through and weakening the bonds.
What plastics are UV stable?
Certain plastics such as acrylic, Ultem®, PVDF, and PTFE are inherently UV stable. However, most plastic materials exhibit color change and loss of elongation when exposed to UV light. Weathering resistance of some plastics can be improved by adding UV stabilizers or UV resistant caps to protect the base polymer.
Which plastic is best for outdoor use?
HDPE. High-density polyethylene, or HDPE, is perhaps the most versatile plastic for outdoor use. Many park benches, tables and chairs are now made using HDPE plastic, and playground equipment, in general, is made of HDPE thanks to its sturdiness.
Is UV radiation?
Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds. While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks. Our natural source of UV radiation: The sun.
Can you use tinuvin P in food contact?
>Tinuvin P has FDA approval for use in a wide variety of food contact applications. >The use levels range between 0.10% and 1.0%, depending on substrate and performance requirements of the final application. >In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Protect skin.
How are tinuvin Hals used in plastic applications?
Tinuvin® comprises a range of Ultraviolet Light Absorbers (UVA) and Hindered-Amine Light Stabilizers (HALS) for plastics. With their help, plastic parts maintain their appearance and properties. Thus, Tinuvin® light stabilizers extend the lifetime of UV sensitive plastic applications.
When to use tinuvin P as a UV absorber?
>UV P can be used alone or in a variety of blends and combinations with antioxidants or UV absorbers where often a synergistic performance is observed. >Tinuvin P has FDA approval for use in a wide variety of food contact applications.
What is tinuvin carboprotect for in car parts?
Tinuvin CarboProtect® is an advanced additive uniquely designed to provide top durability and high tech styling options for exposed lightweight carbon fiber reinforced composites materials in automotive parts.
