摘要：本论文采用直接电沉积镍方法和以化学沉积镍为辅助的电沉积镍方法分别在碳纤文表面进行镍镀层沉积。碳纤文表面电沉积镍工艺包括前处理过程和镀镍过程，前处理工序包括化学除油、敏化及活化，然后研究直接电沉积镍和以化学沉积为辅助的电沉积镍镀层的导电性能变化，通过研究两种工艺条件及参数如时间变化、电流密度变化对碳纤文表面镀镍层导电性能的影响，研究发现经过前处理之后的碳纤文，通过60min化学沉积镍，在电流密度为0.09A/dm2的条件下再进行60min电沉积镍的碳纤文表面上的镍镀层连续均匀、细致，镀层显银灰色，单位电阻为0.0002kΩ•cm-1。34304
毕业论文关键词：碳纤文、前处理、电沉积、镍镀层、导电性
Study on electroplate nickel plating on carbon fibers
Abstract:This paper adopts the direct electroplate deposition method or chemical deposition then electroplate deposition method respectively plate nickel on the surface of carbon fibers. Electroplate deposition of nickel on surface of carbon fiber and nickel plating process including pre-treatment process,pre-treatment process including chemical degreasing, sensitization and activation, changes in conductivity and then study direct electroplate deposition of nickel and electroless deposition for electroplate deposited nickel coating auxiliary, through the study of two kinds of process conditions and parameters such as current density, time variation effects of the nickel plated carbon fiber surface layer of conductive performance, the study found that after pre-treatment of carbon fiber after electroless nickel deposition, through 60min, and then 60min electroplate deposited nickel at a current density of 0.09A/dm2 under the condition of carbon fiber on the surface of the nickel coating is uniform and fine coating was continuous gray, unit resistance of 0.0002kΩ•cm-1.
Key words:carbon fiber;pre-treatment;electroplate;nickel coating;conductivity
目录
1.前言 1
1.1碳纤文的简介 1
1.2碳纤文的应用和发展前景 1
1.3电沉积的简介 2
2.实验原理 3
2.1敏化原理 3
2.2活化原理 3
2.3碳纤文表面化学沉积镍原理 3
2.4碳纤文表面电沉积镍原理 4
3.实验部分 5
3.1实验仪器与试剂 5
3.2基体材料 6
3.3前处理溶液的组成及配制 6
3.3.1化学除油液组成及配制 6
3.3.2敏化液组成及配制 6
3.3.3活化液组成及配制 7
3.4镀液的组成及配制 8
3.4.1化学沉积镍液配方组成及配制 8
3.4.2电沉积镍液配方组成及配制 8
3.5实验工艺流程 9
3.5.1电沉积装置示意图 9
3.5.2电沉积镍工艺流程 9
3.5.3以化学沉积镍为辅助的电沉积镍工艺流程 10
3.6实验步骤 10
3.6.1前处理过程 10
3.6.2镀镍过程 10
3.6.3后处理过程 11
3.7性能检测 11
3.7.1镀镍层导电性能的测定 11
3.7.2形貌检测 11
4.实验分析与讨论 12
4.1前处理过程现象 12
4.1.1化学除油过程 12
4.2镀镍过程现象 12
4.2.1化学沉积镍过程 12
4.2.2电沉积镍过程 12
4.3实验数据处理 13 碳纤维表面电沉积镍工艺的研究:http://www.youerw.com/huaxue/lunwen_31773.html