ANTI-BONDING COATINGS FOR INHIBITING MATERIAL ADHESION TO EQUIPMENT IN THIN-LAYER FIBER COMPOSITE MANUFACTURING

摘要

Methods and systems for forming a thin-layer moisture-resistant fiber composite material involve pressing a mixture of fibers and resin (6) between a pair of heated dies (12, 14) at least one of which includes a working surface coated with a hard ormosil coating (10) including a cross-linked organically-modified silica network. The use of such coatings may yield composite sheet materials having improved surface quality, sharper edges, and greater draw angles than previously possible. Some systems for making thin-layer fiber composite materials may utilize ormosil coatings on various working surfaces of equipment coming into contact with the fiber and resin mixture, such as surfaces of machinery for mixing or conveying the mixture to the dies.