冷等离子体改性碳纤维及其表面化学镀铜

Electroless Copper Plating on Carbon Fiber Surface by Plasma Treatment

采用空气冷等离子体改性碳纤维(Cf)表面,研究了处理功率和处理时间对Cf浸润性和抗拉伸强度的影响,探索了空气冷等离子体改性前后的Cf表面化学镀铜的最佳工艺。用0.5%的亚甲基蓝水溶液测试了Cf经冷等离子体处理前、后的浸润性,按GB/T3362-2005制作Cf复合丝试样,测试了冷等离子处理前、后复合丝的抗拉强度变化。结果表明,处理功率为200W、处理时间为2min是碳纤维空气冷等离子体处理的最佳条件。通过SEM、EDS、XRD测试,处理后的Cf化学镀铜,在70℃、20min后沉积了一层连续、致密的铜层。

Influences of different power and time on the wettability and tensile strength of the carbon fibre （Cf） which was modified by the air cold plasma were investigated. The electroless plating processes be- fore and after different Cf modified by air cold plasma were analyzed. The wettability of Cf treated before and after the air cold plasma was examined by 0.5 % methylene blue solution. The results show that the level of etching and the specific surface area on Cf surface are increased with the increase of processing power and time, however, the wettability is firstly increased and then decreased. The tensile strength of Cf compound samples before and after the air cold plasma was measured according to the GB/T3362-2005 standard. The results show that with 200 W for 2 min, air cold plasma treatment for the carbon fibre ex- hibits desirable. Through SEM, EDS and XRD analysis, the continuous and rich copper is deposized on the surface of modified Cf by electroless plating at 70 ℃ for 20 min.