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本文对高分子量ＰＰＳ的工艺性以及中长纤维增强高分子量ＰＰＳ热塑性复合材料的制备方法进行了研究。确定了用ＰＰＳ的悬浮液进行对中长纤维毡的含浸工艺是制造这种复合材料较为有效的方法。其中，环氧树脂作为胶粘剂来把ＰＰＳ粉和纤维毡粘住。由于环氧树脂对ＰＰＳ粉末的包覆作用，可以防止ＰＰＳ的氧化交联。通过对材料机械性能的测试，并且运用“均匀设计”的试验方法，找出了最佳工艺条件。用这种方法制得的中长纤维增强ＰＰＳ热塑性复合材料在性能上超出了美国ＤＯＷ化学公司ＲＦＣＩ艺的类似产品。最突出的是这种材料的高温性能。在高达２５０℃的温度下，其抗拉强度仍可达到８９ＭＰａ。
In this paper, the processability of high molecular weight PPS and the preparation of long-fiber reinforced high molecular weight PPS thermoplastic composites were studied. It was confirmed that the impregnation process of the medium-long fiber mat with the suspension of PPS is a more effective method for manufacturing the composite material. Among them, the epoxy resin as an adhesive to PPS powder and fiber felt stick. Due to the coating of epoxy resin on PPS powder, it is possible to prevent oxidative crosslinking of PPS. By testing the mechanical properties of the material and using the “uniform design” test method, the optimum process conditions were found. The long-fiber reinforced PPS thermoplastic composites made by this method outperform similar products from the American DOW Chemical Company RFCI. The most prominent is the high temperature performance of this material. At temperatures as high as 250 ° C, the tensile strength can still reach 89 MPa.