多巴胺改性聚苯醚基材的金属化

Metallization of Dopamine Modified Polyphenylene Ether Substrate

聚苯醚基材的对称、低活性分子结构使其具有十分稳定的化学性质,因此难以直接利用化学镀技术在基材表面沉积出高质量的金属层。针对此问题,文中采用化学蚀刻与多巴胺接枝相结合的方法对PPO基材进行表面改性处理,以调整表面粗糙度,改善表面亲水性。文中引入对Ag^(+)具有吸附作用的活性官能团,提高了沉积金属层的导电性和附着力。各项表征测试证明了经过该方法制备出的铜层呈现出连续、均匀且致密堆积的形貌,并具有高纯度、良好的结晶度、优异的附着力以及低电阻率。

The symmetrical and low activity molecular structure of PPO substrate makes it has very stable chemical properties.Therefore,it is difficult to deposit high quality metal layer on the substrate surface by electroless plating.In order to solve this problem,chemical etched and dopamine grafting are combined to treat the surface of the PPO substrate to adjust the surface roughness and improve the surface hydrophilicity.Meanwhile,the conductivity and adhesion of the deposited metal layer are improved by introducing active functional groups that have an adsorption effect on Ag^(+).Characterization tests prove that the copper layer prepared by this method shows a continuous,uniform and densely packed morphology,and has high purity,good crystallinity,excellent adhesion and low resistivity.