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第 7 期 肖国庆，等: 酚醛树脂热解炭的电磁屏蔽性能 ·1109·

生成了碳化硅纳米线，但其电导率相对较低，对于 解炭内原位生成了大量多壁碳纳米管，显著提高了
电磁屏蔽性能的提升有限。而本文添加少量氯化铁 材料的电磁屏蔽效能，因此，适合作为高温电磁屏
即对酚醛树脂热解炭的有序化程度有明显提高，热 蔽材料的候选材料。

表 4 不同热解炭的电磁屏蔽效能比较
Table 4 Comparison of EMI SE of different pyrolytic products
电导率 EMI SE
原料 催化剂/填料 厚度/mm 热解温度/℃ 文献
/(S/cm) /(dB/mm)
环氧树脂 15% CNTs 2 1100 0.2 12.5 [12]
酚醛树脂 0.5% Ni 2 1000 0.35 22.5 [13]
酚醛树脂 4% Fe (C 5H 5) 2 4 1500 0.25 8.5 [9]
1000 75.0 10.8
酚醛树脂 0.5% FeCl 3 2 本文
1500 69.6 12.5
注：表中的百分数指质量分数

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