e-space
Manchester Metropolitan University's Research Repository

    Magnesium hydroxide filled EVA: The effects of filler surface modification on the strength of filler/matrix adhesion and the consequences for composite structure and properties

    Lees, Graham C., Rothon, R., Liauw, Chris and Schofield, Wayne C. E. (2002) Magnesium hydroxide filled EVA: The effects of filler surface modification on the strength of filler/matrix adhesion and the consequences for composite structure and properties. The journal of adhesion, 78 (7). pp. 603-628. ISSN 1545-5823

    File not available for download.

    Abstract

    The interaction of ammonium stearate (AS) and γ-aminopropyltriethoxysilane (APS) treatments with a magnesium hydroxide flame retardant filler and their effects on its use in an ethylene vinyl acetate copolymer compound have been investigated. The work has shown clear evidence of changes in the structure of the surface layers formed on the filler as the amount of additive is increased and the levels at which these occur can be correlated with theoretical monolayer quantities. Infrared (IR) spectroscopy data suggest that the stearate coating changes from a half salt to a full salt as the coating level is increased and that the APS coating on the filler initially has a significant bicarbonate content, presumably due to reaction with atmospheric carbon dioxide. The effect of coating level on the melt flow rate, insoluble matrix content, crystallisation behaviour, tensile properties, limiting oxygen index, and ageing of the filled compound has been studied. Distinct trends have been observed, many of which can be correlated with the structure of the filler surface layers. Of particular importance is the observation that, unlike APS, excess stearate appears to promote detrimental ageing effects.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    0Downloads
    6 month trend
    320Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record