Abstract
This article summarizes modification techniques of the most popular polyolefin composite reinforced with short natural fibers based on two interface modification strategies: filler modification and matrix modification by additives. According to analysis of published papers, it can be concluded that the fiber pretreatment does not result in higher improvement of the properties compared with adding coupling agent in the compounding process.
Highlights
FILLER MODIFICATION METHODSCellulose fibrillation increases the surface available for fiber– matrix interaction and potentially improves the filler properties of the composites (Fig. 1)
Natural fiber composites based on polyolefins have gained increasing interest over the past two decades in the scientific community and industry
Two chemical modification methods reported by Brostow et al have been used for wood sawdust treatment to improve compatibility between matrix and filler using traditional silane coupling and sol-gel method as second step (18)
Summary
Cellulose fibrillation increases the surface available for fiber– matrix interaction and potentially improves the filler properties of the composites (Fig. 1)
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