共查询到17条相似文献,搜索用时 125 毫秒
1.
孙楠 《合成材料老化与应用》2022,51(1):70-72
为了将碳纤维应用于青铜器纹样中,采用化学镀的方法在碳纤维表面制备了化学镀镍层和化学镀铜层,研究了碳纤维表面预处理、化学镀镍和化学镀铜对碳纤维表面形貌和力学性能的影响.结果表明,热脱脂处理后碳纤维表面粗糙度增加,凹槽数量增多且深度相对商业碳纤维有所加深;粗化处理后碳纤维表面凹槽模糊化,表面粗糙度增加的同时凹槽棱角有所钝化... 相似文献
2.
3.
4.
5.
6.
化学镀银的应用与发展 总被引:2,自引:0,他引:2
综述了化学镀银的沉积机理及其发展概况,主要包括:铜粉化学镀银,空心玻璃微球化学镀银,碳纤维布化学镀银,碳纳米管化学镀银,Yb2O3粉体化学镀银,高分子材料表面化学镀银等;并对化学镀银的应用进行了阐述. 相似文献
7.
硝酸银在化学镀的过程中常作为催化剂,实验研究发现,硝酸银在聚酰亚胺薄膜表面化学镀铜时,不仅起到催化剂的作用,还有增加聚酰亚胺薄膜和化学镀铜层结合力的作用。实验采用Na OH溶液对聚酰亚胺表面进行改性,利用不同浓度的硝酸银溶液进行活化,将吸附在聚酰亚胺薄膜表面Ag+还原,进行化学镀铜。使用红外光谱仪对聚酰亚胺的表面结构进行表征和分析,利用3M胶带粘贴法测试镀铜层与聚酰亚胺薄膜的结合力,利用X-射线衍射、扫描电子显微镜表征铜镀层结构及表面微观形貌。结果表明,当硝酸银在一定浓度范围内变化时,硝酸银浓度对化学镀铜层质量和化学镀铜沉积速度无明显影响,但对镀铜层与聚酰亚胺薄膜的结合力影响很大。 相似文献
8.
9.
为进一步改善以次磷酸盐作为还原剂的化学镀铜溶液的沉积速率,采用次磷酸钠(SHP)和二甲胺基甲硼烷(DMAB)构成双还原剂用于化学镀铜溶液中,研究了两种还原剂复合添加浓度对聚丙烯腈-丁二烯-苯乙烯共聚物(ABS)表面化学镀铜的影响。利用网格设计法,探讨化学镀铜溶液中两种还原剂复合的适宜浓度配比,通过恒温加热测试,研究两种还原剂的复合添加浓度对化学镀铜溶液稳定性的影响,并采用场发射扫描电子显微镜和X射线能谱分析仪对化学镀铜层的微观形貌和组成进行表征。研究结果表明,在DMAB和SHP的添加浓度分别为0.50 g·L-1和90 g·L-1时,DMAB和SHP具有良好的协同作用,此时化学镀铜溶液的稳定性好,化学镀铜的沉积速率最大,为3.14μm·h-1。化学镀铜层表面铜晶粒排列致密,表面平整,且镀层中铜含量达到97.4%,ABS表面与化学镀铜层之间的粘结强度最高,达到0.95 kN·m-1。 相似文献
10.
11.
12.
Electroless Plating of Carbon Nanotubes with Copper 总被引:1,自引:0,他引:1
A simple chemical method was employed to coat carbon nanotubes with a layer of copper. Due to the hydrophobic nature, large surface curvature, small diameter and large aspect ratio, it is difficult to gain continuous electroless plating layer on the surface of carbon nanotubes. In this paper, a series methods (oxidization, sensiti-zation and activation) are used to add active sites before electroless plating, and the adjustment of the traditional composition of copper electroless plating bath and operating condition can decelerate electroless plating rate. The samples before and after coating were analyzed using transmission electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that the surface of carbon nanotubes was successfully coated with continuous layer of copper, which lays a good foundation for applying carbon nanotubes in composites. 相似文献
13.
A simple chemical method was employed to coat carbon nanotubes with a layer of copper. Due to the hydrophobic nature, large surface curvature, small diameter and large aspect ratio, it is difficult to gain continuous electroless plating layer on the surface of carbon nanotubes. In this paper, a series methods (oxidization, sensitization and activation) are used to add active sites before electroless plating, and the adjustment of the traditional composition of copper electroless plating bath and operating condition can decelerate electroless plating rate. The samples before and after coating were analyzed using transmission electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that the surface of carbon nanotubes was successfully coated with continuous layer of copper, which lays a good foundation for applying carbon nanotubes in composites. 相似文献
14.
15.
16.
碳纤维表面化学镀镍工艺研究 总被引:2,自引:1,他引:1
介绍了碳纤维表面化学镀镍的工艺流程,前处理主要包括丙酮清洗、粗化、敏化/活化、还原和分散。观察了碳纤维的表面形貌,测试了镀层的结合力。结果表明,预处理对镀层质量而言非常关键。本工艺得到的镀层均匀、完整,结合力良好。 相似文献
17.
以提高紫铜的耐蚀性为目标,研究了温度和施镀时间对以紫铜为基体的化学镀Ni-Co-P合金镀层的微观结构和耐蚀性的影响。结果表明:当温度为75~90℃时,化学镀Ni-Co-P合金镀层都呈现典型的胞状形貌特征,随着温度的升高,胞状物的数量减少,直径增大;随着施镀时间的延长,化学镀Ni-Co-P合金镀层表面胞状物聚集成团的现象减少;当温度为85~90℃、施镀时间为60~80 min时,化学镀Ni-Co-P合金镀层在质量分数为3.5%的NaCl溶液和质量分数为10%的NaOH溶液中的腐蚀速率都较低,其耐蚀性明显优于紫铜的耐蚀性。 相似文献