可膨胀石墨是制备膨胀石墨(EG)的先躯体，压柱成型会对其膨胀所得EG的激光消光性能产生影响。为了优化其成型参数，将先驱体可膨胀石墨(GIC)采用不同压强压制成药柱，对其热膨胀特性及膨胀后所得EG的膨胀体积(EV)、蠕虫形貌、微观结构以及对1.064 μm激光的消光性能展开了研究。结果表明：相较于松散态，成型GIC先驱体所制备的EG蠕虫变细、变短，孔隙率降低；成型压强由0 MPa增至50 MPa，其EV由356 ml/g减小到216 ml/g，所得EG对1.064 μm激光的质量消光截面σM由0.18 m2/g减小到0.04 m2/g，且在20～40 MPa时EV变化率仅为10.6%，σM变化率同样很小。显然，存在对 EV及σM影响较小的压强范围，因此，在EG工程应用中，为满足尽可能大的装药密度，GIC成型可考虑选该压强范围的上限值。

Expandable graphite is the precursor to preparate exfoliated graphite(EG). Confectioning by compressed column will have an impact on the laser extinction performance of EG exfoliated from it. In order to optimize the performing parameter, a series of preformed graphite intercalation compound (GIC), as the precursor of EGs, were prepared under different performing pressure. And the expanding state, expanding volume (EV), micro-morphology and laser extinction of the EGs obtained from the performed GICs were studied. Experimental results show that compared with the diameter, length and porosity of the EG decrease, and the layers of preformed GIC open deficiently. With the increase of performing pressure, the EV of GIC decreases from 356 ml/g to 216 ml/g, and meanwhile, the laser mass extinction cross section(σM) of EG obtained from GIC decreases from 0.18 m2/g to 0.04 m2/g. But both values of EV and σM drop more slowly at 20-40 MPa, and therefore, it is considerable for a high loading density to choose the upper value of 20-40 MPa as the performing pressure on GIC in EG practical application.