一种磁性的碳纤维、钢纤维改性聚四氟乙烯材料及其制备方法

Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof

Abstract

本发明公开了一种磁性的碳纤维、钢纤维改性聚四氟乙烯材料及其制备方法,其特征在于,不仅使用钢纤维、碳纤维来提高聚四氟乙烯的抗拉伸强度、摩擦性能,同时利用改进过的熔融法将细的填料如 SiO2、Al粉等在高温下烧结到聚四氟乙烯表面,改善了聚四氟乙烯的表面烧结状态,使胶接强度得到明显提高。此外,还应用了磁性颗粒,增加复合材料的磁性能,使其更广泛的应用到密封剂、传感器、生物医学等领域。
The invention discloses a magnetic carbon fiber, a steel fiber modified polytetrafluoroethylene material and a preparation method thereof. The magnetic carbon fiber is characterized in that the steel fiber and the carbon fiber are used for increasing the tensile strength and friction performance of polytetrafluoroethylene, the improved melting method is utilized to sinter the fine padding, such as SiO2, Al powder, onto the surface of polytetrafluoroethylene at high temperature, the surface sintered state of polytetrafluoroethylene is improved and the bonding strength is obviously increased. Besides, the magnetic particle is adopted, so that the magnetic property of the composite material is increased and the composite material is more widely applied to the field of sealant, sensors, biomedicine, and the like.

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