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Light Stabilizers Make the UV Protection of Environmentally Friendly Coatings Easier
Today's class of "green" coatings depend on light stabilizers to protect against UV degradation.
Light Stabilisers for clear coatings
It is important to know UV curable coatings especially in dry faster system. Light stabilizers including UV absorbers (UVA) and hinder amine light stabilizers (HALS) are known to prevent coating damages caused by UV irradiation. Photo initiator absorbs UV energy to initiate curing processes. UV absorber absorbs UV energy to prevent coatings damages. As a result, UV absorber and photo initiator are competing for UV energy to cause negative impacts about cure speed.
Light stabilisers for wood pre-treatment applications
Lignin, when exposed to sunlight, can easily be degraded. Results from a study, carried out by Everlight, suggest when wood was treated with high performance light stabilisers prior to the application of a clear coat, can extend the protection of lignin from UV light degradation
Applications of Light Stabilizers in the Materials for Optoelectronic Devices
Many optoelectronic devices (including optoelectronic displays and photovoltaic devices) are mainly composed of polymers which are susceptible to environmental factors such as light, heat and oxygen which may destroy the material and result in cracking, yellowing or pulverization. As optical components must now meet more and more stringent quality requirements, in this paper, the properties of materials and how to choose the appropriate light stabilizer to enhance the material's resistance to yellowing or UV cut-off performance is studied in depth. Keywords: optoelectronic device, light stabilizer, anti-yellowing performance, UV cut-off.
The Pre-treatment Study of Southern Pine with High Performance Light Stabilizers
Lignin, when exposed to the sunlight, can easily be degraded. To preserve the beauty of wood grain, a clear coat containing UV absorbers and light stabilizers is commonly applied to the surface for protection. However, the effectiveness of such application is limited. Results from this study suggested when Southern Pine was treated with high performance light stabilizers prior to the application of clear coat can effectively extend the protection of lignin from UV light degradation.
Epoxy Non-yellowing Weather Resistance Applications
- There are has 20% growth rate for wind energy in every fiscal year. Until 2013, wind energy capacity will exceed 60,000 MW (Figure 1).
Most wind fields are located at remote area or seashore.
The non-yellowing mechanism of optical clear adhesives
It is important that pressure sensitive adhesive (PSA) plays an essential material for adhesive in optoelectronic application. However, commercial demanding required UV cut and UV protection. It needs UV absorber to fulfill the demands, definitely.
UV Curing to the Optical Films is an essential technology
UV Curing to the Optical Films is an essential technology that mainly uses photo initiator as the agent to the acrylic derivatives through the UV light, as the cure source, to trigger free radical polymerization thereafter generates clear acrylic film.
Stabilizers for UV Curable Coatings
As an engineer, the crucial elements when designing the optical films and optoelectric films are usually lying on how to control the UV cut ability (performance) especially under the 380nm.
Technology that helps to achieve this optical mechanism requirement is oftenly applying the coating to the surface of PET layer.
Applications of Novel Light Stabilizers for Environmentally Friendly Coatings
High solids, powder, waterborne, and UV curable coatings - the green coatings - have been developed to replace conventional high VOC and solvent-based coatings
Showing 1 - 10 of 16 Articles
- Last Update: Light Stabilizers Make the UV Protection of Environmentally Friendly Coatings Easier - 28.12.2011 [16:09:51]
