The effects of long term ultraviolet radiation on the mechanical properties of wood flour filled recycled HDPE

Many outdoor products made from conventional lumber can be produced using wood flour filled polyethylene as a replacement material. In these applications the effect of ultraviolet radiation from the sun on the mechanical properties of these materials is important to understand prior to the design of any outdoor product This study will examine the impact of long term ultraviolet exposure on the mechanical properties of wood flour filled high density polyethylene. An accelerated QUV testing apparatus will be used to simulate long term exposure to the sun. Impact strength, toughness, flexural modulus, and tensile strength will all be evaluated.