In order to reveal the ablation characteristics of CNTs-enhanced EPDM insulation materials(CNTs-EPDM)and the influence mechanism of CNTs on the particle erosion resistance of EPDM insulation materials,a high-temperature and high-speed particle scouring ablation environment was constructed by using a particle scouring ablation motor,and the anti-particle scouring per-formance of CNTs-EPDM was tested.The morphology of the ablative CNTs-EPDM carbonized layer was observed by scanning elec-tron microscopy and transmission electron microscopy.The effects of CNTs on the characteristics of the EPDM carbonized layer,the thermal chemical consumption in the EPDM carbonized layer,and the vapor deposition were analyzed.The results show that CNTs play a leading role in enhancing the mechanical properties of the EPDM carbonized layer under the erosion and ablation environment of high-temperature and high-speed particle jet.That is to say,compared with the basic formula of EPDM,the carbonized layer of CNTs-EPDM formula shows excellent compression resistance,which helps it better resist the erosion of high-temperature and high-speed particle jet,thus enhancing the ablation resistance of CNTs-EPDM,and its carbonization rate is 68.1%lower than that of the basic formula.
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