Preparation and Properties of Wood Flour/HDPE Composites Using C₅-g-MAH as Compatilizer

Abstract:

Maleic anhydride grafted C₅ petroleum resin (C₅-g-MAH) was prepared using peroxide as an initiator by melt grafting process, and was incorporated as a compatibilizer into Wood Flour/High Density Polyethylene (WF/HDPE) composites. The effect of second monomers and C₅-g-MAHs on the morphology and mechanical properties of composites was investigated. Results showed that the presence of a second monomer, Triallyl isocyanurate (TAI), Butyl acrylate (BA) or Trimethylol proane trimethacrylate (TMPTMA), in the grafting system gave rise to higher grafting ratio of C₅-g-MAHs compared to that without a second monomer. The highest grafting ratio was obtained as TMPTMA content being 0.20~0.35wt% based on C₅. The addition of C₅-g-MAHs into WF/HDPE resulted in improved mechanical properties. Meanwhile the composite containing C₅-g-MAH with 0.30wt% TMPTMA exhibits the most significant improvement in all mechanical properties with tensile strength and bend strength increasing up to 18% and 20% respectively, which is concomitant with the finer morphology structure observed by SEM, suggesting the remarkable compatibilizing effect of C₅-g-MAH with TMPTMA for WF/HDPE composites.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 170-173
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.170
• Online since: September 2013
• Authors: Lan Cen, Fu Lin Chen, You Ming Cao, Hui Xue Chen
• Keywords: C₅ Petroleum Resin, Compatibilization, Melt Grafting, Second Monomer, Wood Flour/HDPE Composite

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