Resin impregnated waste fibres - produced by cleaning binding with resin and polymerising to give laminates

摘要

The short fibres are cleaned, mixed with resins and other additives which are polymerised to yield rigid products which may be cut up and given a surface treatment. Sheets for building and heat and sound insulation may be made, which are of low cost and provide reasonable mechanical properties and dimensional stability. A mixture of resins of different m.pt may be used e.g. esterified colophony and phenolic resins added at 5-10% of the fibres.