US EPA

1204953 

Journal Article 

SYNERGISTIC EFFECT OF ADDITIVES INCLUDING MULTIFUNCTIONAL ACRYLATES IN WOOD PLASTIC COMPOSITES 

Khan, MA; Ali, KMI; Garnett, JL 

1993 

1 

Radiation Physics and Chemistry
ISSN: 0969-806X 

42 

1-3 

167-170 

10.1016/0969-806X(93)90227-L 

WOS:A1993LK32300037 

Wood Plastic Composite (WPC) was prepared with simul (soft wood, density = 0.4g/cc) and butylmethacrylate (BMA) monomer using 10% methanol as the swelling agent. Effect of additives including (i) multifunctional acrylates such as tripropylene glycol diacrylate (TPGDA), trimethylol propane triacrylate (TMPTA) (ii) oligomer acrylates like the urethane (UA), epoxy (EA) and polyester (PEA) acrylates and (iii) N-vinyl pyrrolidone (NVP) was investigated using 1 to 3 Mrad dose at 0.8 Mrad/h. Synergistic increases in polymer loading yields was achieved in presence of the additives, particularly with the trifunctional acrylate (TMPTA). In addition, acid as well as urea were also used as co-additives and synergistic enhancement in yields of polymer loading were obtained. The synergistic polymer loading by acid addition causes substantial decrease in tensile strength of the composite; but other additives and co-additives increase both the polymer loading and the tensile strength in these systems. 

WOOD PLASTIC COMPOSITE; TENSILE STRENGTH; COMPOSITE; SYNERGISTIC YIELDS; POLYMER LOADING; GRAFTING