Investigation of Bonding Characteristics of Polypropylene-Wood Composite

Adhesive bonding technology is one of the most recent assembling techniques applied in industry and maintenance. Adhesives are versatile and offer a number of advantages over fastening techniques, however, there are number of limitations associated with their use. One of the most difficult issues is bonding of low surface energy materials, such polyolefines (PE and PP), silicones, PTFE etc. In this investigation the attention has been paid to bonding of polypropylene-wood composite aiming to research the influence of wood filler on the bonding characteristics of polypropylene. The simple single lap bonded joints have been prepared. Two types of adherends - polypropylene and polypropylene-wood composite, and two types of adhesives - a 2K toughened epoxy adhesive and a special low surface bonding 2K acrylic adhesive have been tested.