Polyurethane improvement by glasses fibres, acoustic, mechanical and thermal application

摘要

Polyurethanes and glass fibres offer nowadays very interesting possibilities of their utilization related to the modification of the basic material. Possible combinations of these materials stem from their specific properties, e.g. acoustical properties, high resistance against mechanical stress, the ability to modify damping of transfer and decrease burning rate. Polyurethanes and glass fibres have been used in different forms in aviation, automotive industry and engineering. Materials for such application should be able to deal with moisture, random mechanical shocks, elevated or low temperature, dirt or fungi. Glass component at the polymer surface extends application possibilities. Particular application however demands certain ratio of fibrous or pulverous glass, i. e. density gradient of glass component in the polymer. Each application also calls for specific ratio of both compounds and/or their conditions. Eventually, economical aspect should be considered, as glass reinforced polymers should be available for reasonable price.