2021

What are UV absorbers?

　　A UV absorber is a kind of light stabilizer that absorbs ultraviolet rays from sunlight and fluorescent light sources without changing itself. Plastics and other polymeric materials, under sunlight and fluorescence, undergo auto-oxidation reactions due to ultraviolet rays, leading to polymer degradation and deterioration, thus damaging their appearance and mechanical properties. Adding a UV absorber allows for the selective absorption of these high-energy ultraviolet rays, converting them into harmless energy that is released or consumed.

　　Different types of polymers degrade at different ultraviolet wavelengths. Different UV absorbers absorb different wavelengths of ultraviolet light. When using them, the UV absorber should be selected according to the type of polymer.

　　A UV absorber should meet the following conditions: ① Strong absorption of ultraviolet rays (especially those with wavelengths of 290-400 nm); ② Good thermal stability, not changing due to heat even during processing, and low thermal volatility; ③ Good chemical stability, not reacting unfavorably with the material components in the product; ④ Good miscibility, uniformly dispersing in the material without blooming or bleeding; ⑤ Good photochemical stability of the absorber itself, without decomposition or discoloration; ⑥ Colorless, non-toxic, and odorless; ⑦ Wash-resistant; ⑧ Inexpensive and readily available. UV absorbers can be classified by chemical structure into the following categories: salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines, and others.

　　UV absorbers are used in plastics, coatings, dyes, automotive windshields, cosmetics, pharmaceuticals, and sunscreens.

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Jiangxi Kerun New Materials Technology Co., Ltd

13665709588

Address: Xiangsi Industrial Park, Dexing City, Jiangxi Province
Contact person: Mr. Yang
Tel: 18857019806;13665709588
Website: www.kerun.com

Power by 300.cn | SEO | Business License