PPS树脂的机械强度不算高，经玻璃纤维或碳纤维增强或矿物填充之后，其强度和刚性成倍增加，并具有优异的耐蠕变性和耐疲劳性。表面硬度高，洛氏硬度>100HR,拉伸强度>170MPa，弯曲强度>220MPa，缺口冲击强度〉16MPa，弯曲模量>3.5×104，
耐化学品性
PPS耐化学性能极好，仅次于聚四氟乙烯，在200℃以下不溶于任何有机溶剂，除强氧化性酸以外，对无机酸、碱和盐类的抵抗性极强。且对各种辐射也很稳定。
尺寸稳定性
PPS树脂经复合后其成型收缩率很低，小于吸收率小于0.05%，线性热膨胀系数也小。在高温、高湿条件下仍表现出良好的尺寸稳定性。
电气特性
PPS的电绝缘性和介电强度很好，在高温、高湿、高频条件下仍具有优良的电性能，其体积电阻率为1×1016Ω.cm，表面电阻率为1×1015Ω，电气强度>18KV/mm.
加工性能
PPS树脂的流动性很好，可用各种方法加工成型，经纤维增强或填充后，仍可注塑成型复杂和薄壁制件。与金属和非金属粘接性
PPS特别对玻璃、铝、钛、不锈钢等具有非常高的粘结强度，附着力达到1级。对玻璃的粘结性能好，极宜作化工设备的衬里。
The mechanical strength of PPS resin is not very high. After glassfiber or carbon fiber reinforced or mineral filled, the strengthand rigidity of PPS resin increase exponentially, and it hasexcellent creep resistance and fatigue resistance. High surfacehardness, Rockwell hardness & GT. 100HR, tensile strength & GT.170mpa, bending strength & GT. 220mpa, notched impact strength >16MPa, bending modulus & GT. 3.5 × 104. Chemical resistance of PPSis excellent, second only to polytetrafluoroethylene, it isinsoluble in any organic solvent below 200 ° C, and is highlyresistant to inorganic acids, bases and salts except for strongoxidizing acids. And very stable to all kinds of radiation. Thesize stability of PPS resin after composite molding shrinkage isvery low, less than the absorption rate is less than 0.05% , theCoefficient of thermal expansion is also small. It shows gooddimensional stability under high temperature and high humidity. PPShas excellent electrical insulation and dielectric strength, andhas excellent electrical properties at high temperature, highhumidity and high frequency. Its volume resistivity is 1 × 1016ω.Cm, the surface resistivity is 1 × 1015 ω, the electrical strengthis > 18 kv/mm. Workability PPS resin liquidity is very good, canbe processed by a variety of methods molding, fiber reinforced orfilled, still can be injection molding complex and thin-walledproducts. PPS with metal and non-metal adhesion especially onglass, aluminum, titanium, stainless steel and so on have very highbonding strength, adhesion to 1 level. Good adhesion to glass, verysuitable for chemical equipment lining.
