本文關(guān)鍵詞： 長(zhǎng)碳纖維 連續(xù)鍍銅 工藝優(yōu)化　出處：《機(jī)械工程材料》2017年03期 　論文類型：期刊論文

【摘要】：采用焦磷酸鹽鍍銅工藝,利用自制的電鍍裝置對(duì)聚丙烯腈基長(zhǎng)碳纖維進(jìn)行連續(xù)鍍銅改性,研究了鍍液成分、電流密度、鍍液溫度與鍍液pH等對(duì)鍍層質(zhì)量的影響規(guī)律,在此基礎(chǔ)上對(duì)連續(xù)鍍銅工藝進(jìn)行了優(yōu)化,并制得了性能較好的長(zhǎng)碳纖維鍍銅復(fù)合絲。結(jié)果表明:選擇P_2O_7~(4-)與Cu~(2+)物質(zhì)的量分?jǐn)?shù)之比為7.0的鍍液作為基礎(chǔ)鍍液,添加劑選擇質(zhì)量濃度為25g·L~(-1)的檸檬酸銨,在電流密度為2.0～2.5A·dm~(-2)、鍍液溫度約為40℃、鍍液pH為8.2～8.8的電鍍工藝條件下,制得的鍍層完整,均勻致密,結(jié)合強(qiáng)度高,且長(zhǎng)碳纖維鍍銅復(fù)合絲的導(dǎo)電性能顯著提高,解決了束狀長(zhǎng)碳纖維在連續(xù)鍍銅工藝中易出現(xiàn)的"黑心"和"結(jié)塊"問題。
[Abstract]:Continuous copper plating of polyacrylonitrile based long carbon fiber was carried out by using pyrophosphate copper plating process. The effects of bath composition, current density, bath temperature and bath pH on the quality of the coating were studied. On this basis, the continuous copper plating process was optimized, and a long carbon fiber copper-plated composite wire with better performance was prepared. The results showed that the plating bath with the ratio of 7.0 to Cu~(2) was selected as the base bath. When the concentration of ammonium citrate is 25g 路L ~ (-1), the current density is 2.0 ~ 2.5A 路dm ~ (-1), the bath temperature is about 40 鈩，

本文編號(hào)：1497354