UV resistant plastic UHMW Sheets
UHMW sheets can be attacked by ultraviolet (UV) radiation.The attack is known as UV degradation, and can be a problem in products highly exposed to sunlight or in some cases artificial sources.Continuous exposure for a long period of time is a more serious problem than intermittent exposure,since the attack is dependent on the extent and degree of exposure.Examples of UV degradation on natural UHMW sheet include chalking,a yellow discoloration and cracking.In severe cases,complete product disintegration can occur.The attack can be detected before serious cracks are seen in a product using infrared spectroscopy.
UV attack by sunlight can be slowed or prevented by dispersing UV stabilizers in the polymer prior to extruding.The most effective methods for protecting plastic polymers for UV attack is the addition of specific aids which when added in sufficient quantities absorb the UV radiation and give it off as heat; protecting the polymer chain.
UV resistant plastic UHMW sheet is produced on the basis of UHMW sheet adding ultraviolet absorbing adjuvant .Prevent product aging,can extend the life of objects covered by UV resistant plastic UHMW sheets.Outdoor applications for UV resistant plastic UHMW sheets are endless. This modified type of UV resistant plastic retains all the key properties of UHMW sheets.