Daily life exposition to different sources of UV Light: while the sun is our primary natural source of UV radiation, artificial light sources may also incur into unique hazardousness, according to its wavelength range of the emitted UV radiation.
The sun emits electromagnetic radiation of different energy according to its wavelengths Ultraviolet (UV) radiation is defined as that portion of the electromagnetic spectrum between X rays and visible light.
Some of the radiation, such as that making up the colours of the rainbow, is visible by humans while the part of radiation beyond the violet end of visible light is called UV radiation and can not be seen by humans eyes.
The UV spectrum is divided into:
• Vacuum UV (40-190 nm);
• Far UV (190-220 nm);vlt
• UVC (220-290 nm);
• UVB (290-320) and
• UVA (320-400 nm)
UV absorbance is strongly dependent on the thickness of the application and the concentration of UV absorber in the masterbatch dosed.
The wavelength range that is to be blocked by the UV masterbatch is dependent on the UV absorption of the ingredients that need UV protection.
Additional challenger ar incorporated to the masterbactches manufacturers and convertors by the UV volatility during extrusion
What is the polymer and processing conditions of your application?
What is the thickness of your final part?
What wavelength protection is needed by your product?
Sukano technical experts will assist you to select a product or tailor made one of your choice respecting all requirements of your final application.
