Title
Wood plastic composites based on microfibrillar blends of high density polyethylene/poly(ethylene terephthalate)
Document Type
Article
Publication Date
5-1-2010
Abstract
High-melting-temperature poly(ethylene terephthalate) (PET) was successfully introduced into wood plastic composites through a two-step reactive extrusion technology. Wood flour was added into pre-prepared PET/high density polyethylene (HDPE) microfibrillar blends (MFBs) in the second extrusion at the temperature for processing HDPE. Addition of 25% in situ formed PET microfibers obviously increased the mechanical properties of HDPE, and more significant enhancement by the in situ formed recycled PET microfibers was observed for the recycled HDPE. Adding 2% E-GMA improved the compatibility between matrix and microfibers in MFBs, resulting further enhanced mechanical properties. The subsequent addition of 40% wood flour did not influence the size and morphology of PET microfibers, and improved the comprehensive mechanical properties of MFBs. The wood flour increased the crystallinity level of HDPE in the compatibilized MFB in which PET phase did not crystallize. The storage modulus of MFB was greatly improved by wood flour.
Publication Source (Journal or Book title)
Bioresource technology
First Page
3665
Last Page
71
Recommended Citation
Lei, Y., & Wu, Q. (2010). Wood plastic composites based on microfibrillar blends of high density polyethylene/poly(ethylene terephthalate). Bioresource technology, 101 (10), 3665-71. https://doi.org/10.1016/j.biortech.2009.12.069