邻苯二甲腈树脂基炭化材料的制备及其电磁屏蔽性能研究

Preparation of Phthalonitrile Resin-based Carbonized Material with Electromagnetic Shielding Performance

采用含有腺嘌呤结构的邻苯二甲腈树脂作为材料前躯体制备邻苯二甲腈树脂基炭化材料,并利用X射线衍射仪、拉曼光谱、四探针测试仪与矢量网络分析仪表征了各个炭化温度样品的结构与导电性电磁屏蔽效能。结果表明,随着炭化温度的升高,该邻苯二甲腈树脂基炭化材料结构的石墨化程度逐渐增加,电导率及电磁屏蔽效能值也逐渐增大。

The carbonized materials based on phthalonitrile resin containing the structure of adenine were prepared. The structures of the carbonized material samples with different carbonization temperatures were characterized by X-ray diffractometry and Raman spectroscopy. The electric conductivity and electromagnetic shielding performance were characterized by four-probe tester and vector network analyzer. The results show that with the increase of carbonization temperature, the increase, as well as the conductivity and electromagnetic degree of graphitization of the sample structure tends to shielding efficiency of the carbonized material samples.