碳-碳复合高性能无石棉密封板的研制

摘要

该文在分析国内外无石棉密封材料现状基础上,以自主研制的改性短切碳纤维为增强材料、深加工的低密度柔性石墨微粉为主体填充材料、自制的高性能混合橡胶为粘合剂,组成了产品的主体配方.通过物料开松、混合、搅拌一体化等关键装备的研制和多层成张辊压等关键工艺参数的优化,成功制备了一种综合性能优良的碳-碳复合高性能无石棉密封板.与国内外无石棉密封板相比,在确保100％无石棉的基础上,具有更优异的耐温性和密封可靠性,可广泛应用于高温静态密封领域.%On the basis of the recent production technologies of non-asbestos sealing material,through using of key materials of Independently developed shot-cut carbon fiber (reinforced materials),low density flex graphite powder (main materials) and high performance rubber mixture (adhesive materials); through adopting of one step stirring-mixing equipment and multi-layer rolling methods,successfully manufacture a kind of high comprehensive performance non-asbestos sealing sheet.Comparing with other similar production,This sheets not only have the advantage of 100％ non-asbestos content but also have higher stabilities of high temperature and seal,can be used in the fields about high temperature and static seal.