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Showing posts from May, 2024

Organic UV Filters

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  Unlike inorganic or mineral UV filters, which create a physical barrier on the skin's surface, organic UV filters   work by absorbing UV radiation and transforming it into heat, which is then released from the skin. Organic UV filters are known for their ability to offer lightweight and cosmetically elegant sunscreens that are easily applied and absorbed by the skin.   Some common organic UV filters include compounds like avobenzone, octisalate, octocrylene, and oxybenzone, among others. These filters provide various levels of protection against both UVA and UVB rays, and they can be used individually or in combination to achieve broad-spectrum sun protection.   TINTOLL Organic UV filters are popular in personal care products because they provide a more transparent and lightweight feel on the skin, making them suitable for everyday use. However, it's essential to note that some individuals with sensitive skin may be more prone to skin reactions or allergies from ce...

Products

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  Leveraging more than 30 years of experience, TINTOLL developed innovative types of uv stabilizers for polymers, including UV light stabilizers, antioxidants and polymerization inhibitors to extend service life, maintain structural integrity and enhance the performance of plastics through compounding, processing, fabrication and end use.   TINTOLL has three main UV polymer stabilizers   additives lines. The first is PowerStabTM line which includes Benzophenones, Benzotriazoles, Benzonates and Triazines based UV Absorber; the second is PowerSorbTM line which includes hindered amine light stabilizer; the third is TinSorb ™ UV-filters, they are designed for personal care formulations to protect skin and hair from the damaging effects of sunlight. TINTOLL ’ s powerful antioxidants are represented by the PowerNoxTM series, including hosphite antioxidants, Thioether antioxidant and HAPO (Hindered Phenols Antioxidants). And our polymerization inhibitors are available via PolySt...

Polymer Antioxidants

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  TINTOLL polymer antioxidants   are the most important additive in polyolefin, plastic, resin and other products. The purpose of antioxidants for polyolefins is to prevent or delay oxidation and to ensure the processing and use quality of products. Throughout the plastics production process, degradation and processing requirements can reduce the strength and stability of plastic parts.   TINTOLL plastic antioxidants help to extend the useful life of plastics by minimizing changes in physical properties throughout thermal processing, including extrusion, injection molding, blow molding and rotational molding. Antioxidants for polyolefins improve the weatherability of UV stabilized systems and enhance the durability of plastics at moderate to high temperatures.   TINTOLL antioxidants can help maintain gloss and transparency, prevent yellowing, surface cracking and odor, and maintain critical mechanical properties such as impact resistance, elongation and tensile stren...

UV Absorbers

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  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 UV light absorber should consider the characteristics, melting point, volatility, solubility and absorption spectrum of different products.   How to choose UV Absorber? Chemical UV absorbers   are a common way to protect plastics from UV rays. When choosing a UV absorber additive, you can consider the following factors:   Type and model of plastic   Processing equipment and conditions   Selection and use of other chemicals   UV absorbers are types of polymer stabilizers and are classified by chemical classes such as benzotriazoles, benzophenones, triazines and oxanilide UV absorber. Each category has its own U...

Photoinitiators

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  Ultraviolet curing technology (UV technology) is to add a UV photoinitiator (or photosensitizer) to a specially formulated system (called a photocuring system) to generate active free radicals or cations after absorbing ultraviolet rays (UV), thereby initiating polymerization, Cross-linking and grafting reactions, making it from liquid to solid technology. Photoinitiator for UV curing technology is an environmentally friendly and cost-effective option because there is no need to remove water at the end of the printing or coating process, and there is no need to capture or incinerate solvents.   UV curing materials are widely used in optical fiber cables (UV curing optical fiber coating materials), printed circuit boards (UV curing photoresists), home appliances (plastic coatings, metal coatings), automotive parts (transparent varnishes, repair paints, reflector lampshades etc.), printing packaging (UV curing inks), wooden furniture and flooring (UV curing coatings).   T...

Triazine UV Absorber

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  At present, the ultraviolet absorbers used in polymer materials mainly include benzotriazoles, benzophenones, salicylates and triazines. Triazine-based UV absorbers have high heat resistance and excellent wash-off resistance compared to benzotriazole-based UV absorbers. Triazine UV absorber   provide excellent protection across the entire UV spectrum and are particularly effective at absorbing short wavelength radiation (UVB). Triazine UV absorbers are commonly used in polyolefins to provide stability throughout high temperature processing with a TGA(10%) of 347 ° C.   The European Chemicals Agency (ECHA) included four benzotriazole UV absorbers (UV320, UV 327, UV 328, UV 350) in the list of Substances of Very High Concern (SVHC) in 2014 and 2015. Therefore, the use of benzotriazole UV absorbers is strictly limited and is gradually being replaced. The scale of R&D and production of triazine UV absorbers is expanding day by day.   Triazine UV absorbers allow pol...

Polymerisation Inhibitors

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  Polymerisation Inhibitors Free radical polymerization of unsaturated monomers usually propagates via C-radicals, and these can inhibit polymerization by combining with other free radicals to form neutral species. TINTOLL stable free radicals include 4-Hydroxy TEMPO , 4-oxo-TEMPO, Tri-(4-Hydroxy-TEMPO) Phosphite, and Bis(2,2,6,6-tetramethyl-4-piperidyl-1-oxyl) Sebacate, they are very effective free radical scavengers.   What Is Polymerization Inhibitor? inhibitor in polymerization   are reactive molecules that react with extending polymer chains. They are used to stabilize monomers and prevent light, heat and air from initiating polymerization.   Polymerization inhibitors are functional additives that are essential for safe storage and processing of monomers.   Adding small amounts of inhibitors can stop the polymerization chain reaction or slow its rate significantly.   Some common polymerization inhibitors include hydroquinones and nitrosamines. However,...

Oxanilide UV Absorber

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  TINTOLL has been actively involved in the development and application research of innovative light stabilizers since 1989, offering the most comprehensive portfolio of stabilizers: Ultraviolet Absorbers (UVA) and Hindered Amine Light Stabilizers (HALS) for effective stabilization against light and weathering harmful effects. In addition to being widely used in various plastic products, light stabilizers are also suitable for water-based (WB), solvent-based (SB), UV-curable and powder coatings, as well as inks, adhesives and sealants.   TINTOLL provides professional formulations for different composite materials. In addition, TINTOLL has also developed UV absorbers with special structures and special applications, such as Oxanilide UV Absorber .   PowerSorb ™ 312 is an Oxanilide type UV absorber which is effective for the light stabilization of a broad range of plastics and coatings. It is less discoloring than conventional UV absorbers, even in alkaline environments and...

Light Stabilizers

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  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 scavenging free radicals...

Hindered Amine Light Stabilizer

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  hals light stabilizer   are important stabilizers for long-term thermal protection of polymers, and are very effective in inhibiting polymer degradation caused by free radicals at medium and low temperatures.   Hindered Amine   Light Stabilizers ( HALS amine ) exhibit excellent UV protection by scavenging free radicals generated by photodegradation to prevent polymer degradation. After the chemical scavenges free radicals, it returns to its original structure and repeatedly scavenges free radicals for effective long-term performance.   HALS can be classified according to their molecular weight (MW): HALS with a low molecular weight of approximately 200 to 500 g/mole are generally referred to as low MW HALS, while hals hindered amine light stabilizers   with a molecular weight of 2000 or higher are referred to as high MW HALS. In general, high molecular weight hindered amine light stabilizer   are more effective than low molecular weight hindered amin...