热塑性树脂基碳素复合材料双极板的研究

Study of the composite bipolar plates for PEMFC

以热塑性树脂作为石墨的粘结剂,采用模压一次成型制备复合材料双极板。考察了成型温度、成型压力、树脂含量及不同导电骨料种类配比对双极板性能的影响。实验表明(:1)在较低的成型温度和成型压力下采用溶剂溶解法制备的双极板性能要优于直接混合法(;2)较好的制备工艺:树脂质量分数为10%～16%,天然与人造石墨比例接近1∶1,成型温度为130～160℃,成型压力为8～12MPa。

Resin/graphite composite PEMFC bipolar plates using thermoplastic-rosin as the binder were newly prepared by pressing. The influences of the temperature, pressures, rosin and conductive fillers （graphite） on the properties of the bipolar plates were researched. The results show that the solvent dissolving is better than the diroct mixing in relatively low temperature and pressures. For the preferable preparation, the rosin content, the proportion of natural and manmade graphite, temperature and pressures should be 10%- 16 %, about 1 ： 1, 130-160 ℃ and 8-12 MPa.