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Wood flour and fibres do not bond well to polyolefins. Fillers or reinforcing agents for polyolefins based on these materials need to be treated before incorporation. This paper describes the property improvements obtained by treating papers, wood flour and wood fibres with zircoaluminate coupling agents before their forming into composites with polyolefins. The zircoaluminates were found to be effective coupling and hydrophobing agents in this system at low concentrations.
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Freischmidt et al. (1991) studied this question.
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