Document Type : Research Paper

Authors

• Neda Moradpour ¹
• Mohammad reza Mastari frahani ²
• Alireza Shakeri ³

¹ M.Sc. Student, department of Wood and Paper Sciences and Technolog, Gorgan University of Agricultural Sciences and Natural Resources. Gorgan Iran,

² Assistant Prof., Wood and paper science and technology department, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

³ Associate Prof., Chemistry Department, Golestan University, Gorgan, Iran

Abstract

To investigate the effect of acetylation and antioxidant  separately and together on discoloration and contact angle wood plastic composite due to weathering , composite s were made using popular wood flour and high density polyethylene . the sample were exposed  to natural weathering for 6 months.
The results have shown that acetylation can relatively reduce the discoloration of weathered sample treatment than control sample.the antioxidant does not have any influence on color change but it seems that antioxidant could prevent  partly destruction of plastic .
It should be mention acetylating increased the surface contact angle befor weathering. But it could not protect the sample surface after the exposure period. So that was zero after weathering.

Keywords

• Wood Plastic Composite
• Acetylation
• Antioxidant
• change colour
• Contact angle
• weathering