通过对聚丙烯(PP)进行各种改性的探讨,分析了各种改性PP用作压滤机过滤板的优缺点,重点考察了碳酸钙的表面处理、含量及粒径对材料性能的影响,从而确定了用填充改性PP制备压滤机过滤板的最佳方法,并以PP为基体、超细重质碳酸钙为填料,制备了压滤机过滤板,所研制的压滤机过滤板不但性能可靠,而且大大降低了生产成本,具有显著的经济效益。 Through the discussion of various modification of polypropylene (PP), the advantages and disadvantages of various modified PP used as filter plate of filter press were analyzed. The surface treatment, content and particle size of calcium carbonate were mainly investigated. Influence, so as to determine the best method for preparing filter press filter plate by filling modified PP, and using PP as matrix and ultrafine heavy calcium carbonate as filler to prepare a filter press filter plate, the developed filter press Filter plate not only reliable performance, but also greatly reduce the cost of production, with significant economic benefits.