In order to develop a flexible composite material that could play a good cushion role for high temperature ceramic membrane cleaning, we herein report a flexible composite material which could achieve effective buffering to relieve the stress generated by rigid contact and play a certain sealing effect. The coating method is applied to fabricate the composite material, which can be produced by multi-layer superposition using high silica fiber fabric and waterborne polyurethane. The results show that waterborne polyurethane (WPU) as a binder coating plays a key role in improving the strength by six times compared to raw materials and maintaining the elasticity of materials. Meanwhile, the thermal degradation mechanism of the composites calcined at different temperatures (700–1200 °C) in air atmosphere is investigated. The as-made composite materials still have good flexibility, and the tensile strength is about 2.4 MPa after calcination at 1000 °C for 80 h. This provides a method to prepare flexible cushion composite materials for ceramic membrane filtration.

为了开发一种可以在高温陶瓷膜清洗中起到良好缓冲作用的柔性复合材料，我们在本文中报道了一种柔性复合材料，其可以实现有效的缓冲以减轻由刚性接触产生的应力并起到一定的密封作用。涂覆方法用于制造复合材料，该复合材料可以使用高二氧化硅纤维织物和水性聚氨酯通过多层叠加来生产。结果表明，水性聚氨酯（WPU）作为粘结剂涂料，在将强度提高到原材料的六倍和保持材料的弹性方面起着关键作用。同时，研究了在大气中不同温度（700-1200°C）下煅烧的复合材料的热降解机理。制成的复合材料仍具有良好的柔韧性，在1000℃下煅烧80h后的拉伸强度约为2.4MPa。这提供了制备用于陶瓷膜过滤的柔性缓冲复合材料的方法。