摘要 |
<p>A method for preparing a moulded composite comprises milling reinforcing fibres to a mean fibre length of less than 5 mm, treating the milled fibres with a coupling agent and suspending the dried fibres in a liquid resin which reacts with the coupling agent on the fibres. Preferred fibres include glass fibres and milled mica coated with calcined iron oxide. Preferred coupling agents are organosilanes and metal acrylates e.g. zinc diacrylate. Composites formed by the above method exhibit improved impact resistance, tensile strength and flexural strength.</p> |