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密封材料在汽车等交通工具中的应用主要是气缸垫和润滑系统。目前国内应用较多的是以石棉为骨架与不同弹性体粘结压制而成。随着汽车制造业在我国国民经济中地位的确立并不断向国际先进水平接轨,对其中静密封材料的性能提出了更高的要求。由于世界各国政府对环境保护要求越来越高而引起工业国家对石棉制品生产、使用、销售的严格限制并竞相研究,开发无石棉密封材料并正在发展成为一类新材料产业。
Sealing materials in the automotive and other transportation applications mainly cylinder cushion and lubrication system. At present, more applications are based on asbestos as a skeleton with different elastomers bonded from suppression. With the establishment of automobile manufacturing industry in our country’s national economy and its continuous integration with the international advanced level, the performance of static sealing materials is put forward higher requirements. As the governments of various countries in the world demand more and more for environmental protection, the industrial countries have set strict limits on the production, use and sale of asbestos products and competed to study and develop asbestos-free sealing materials and are developing into a new type of materials industry.