首页|KMnO4-H2SO4-H2O体系对聚碳酸酯的表面微蚀

KMnO4-H2SO4-H2O体系对聚碳酸酯的表面微蚀

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为了提高聚碳酸酯(PC)与镀层间的黏结强度,采用KMnO4-H2SO4-H2O体系对PC进行表面微蚀处理,然后在其表面制备了铜镀层.通过扫描电镜、视频光学接触角测量仪和万能材料试验机研究了体系中硫酸体积分数和微蚀时间对PC表面形貌、亲水性,PC与铜镀层间黏结强度的影响.结果表明:采用KMnO4-H2SO4-H2O体系对PC基体进行合适的表面微蚀处理后,PC基体表面呈现出优异的表面粗糙度和亲水性,并且铜镀层与基体结合牢固;在微蚀温度为70 ℃、KMnO4质量浓度为6 g/L、硫酸体积分数为71.0％条件下,微蚀25 min后,PC基体表面形成了大量致密均匀的微孔,表面粗糙度增大,为化学镀铜过程中铜的沉积提供了良好的定位点,并且PC基体表面接触角由83.5°降低到53.7°,亲水性大幅度增强,黏结强度达到最大值,为4.1 N/cm.
Etching of Polycarbonate Surface by KMnO4-H2SO4-H2O System
In order to improve the surface adhesion strength between polycarbonate(PC)and coating,the surface of PC was etched by KMnO4-H2SO4-H2 O system,and copper coating was prepared on PC surface.The effects of sulfuric acid volume fraction and etching time on the surface morphology,hydrophilicity and adhesion strength between PC and copper coating were studied by scanning electron microscopy,video optical contact angle measuring instrument and universal material testing machine.The results show that the PC substrate obtained excellent surface roughness and hydrophilicity after etching by KMnO4-H2SO4-H2 O system.At the same time the copper coating was firmly bonded with the substrate.After the PC was etched for 25 min under conditions of 70 ℃,6 g/L KMnO4 and volume fraction of sulfuric acid of 71.0％,a large number of dense and uniform micropores were formed on the surface of PC substrate,and the surface roughness of PC increased,which provided a good fixing point for copper deposition during electroless copper plating.Moreover,the contact angle of PC surface was reduced from 83.5° to 53.7°,the hydrophilicity was greatly enhanced,and the adhesion strength reached a maximum of 4.1 N/cm.

polycarbonateswellingetchingpotassium permanganate

刘利利、张彩芳、赵文霞、宋晅、程熠、朱皓

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宁夏师范学院化学化工学院,固原 756099

聚碳酸酯 膨润 微蚀 高锰酸钾

宁夏回族自治区高等学校一流学科建设(教育学学科)项目宁夏回族自治区自然科学基金国家自然科学基金宁夏回族自治区科技创新领军人才项目自治区重点研发计划一般项目宁夏回族自治区青年拔尖人才国家级学术技术带头人后备人选项目宁夏新型高校智库项目固原市科技计划宁夏师范学院六盘山资源工程技术研究中心项目宁夏师范学院六盘山资源工程技术研究中心项目无机化学重点学科建设项目

NXYLXK2017B112022AAC0329821561027KJT20160042018BEE03024宁人社函[2017]787号宁教工委办[2018]12号2020GYKYF003HGZD20-02HGZD21-04宁师院[2017]83号

2024

10.11973/fsyfh-202405008

腐蚀与防护
上海市腐蚀科学技术学会 上海材料研究所

腐蚀与防护

CSTPCD北大核心
影响因子：0.462
ISSN：1005-748X
年,卷(期)：2024.45(5)
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