CAJ | 학술논문

针对涂层在使用的过程中存在渗透腐蚀的现象,研究了聚合物-玻璃鳞片自组装体系,对聚合物复合材料建立了数学模型,分析了模型中对鳞片组装平行度的主要影响因素,运用分子动力学探讨了各主要影响因素对鳞片的作用机理,通过对玻璃鳞片的表面修饰及鳞片在涂层中平行度的组装控制来降低涂层的渗透率,提高涂层抵御腐蚀介质渗透的效果. 通过对该体系涂层的扫描电镜( SEM)观察、电化学交流阻抗( EIS)等技术手段的测试对比,说明涂层抗渗性能与鳞片平行度排列程度具有近似线性关系. 实验证明:平行度较高的涂层经600 h浸泡后总阻抗值变化不大,仍然保持在107 Ω·cm2 ,其渗透率只有1.41%.
침대도층재사용적과정중존재삼투부식적현상,연구료취합물-파리린편자조장체계,대취합물복합재료건립료수학모형,분석료모형중대린편조장평행도적주요영향인소,운용분자동역학탐토료각주요영향인소대린편적작용궤리,통과대파리린편적표면수식급린편재도층중평행도적조장공제래강저도층적삼투솔,제고도층저어부식개질삼투적효과. 통과대해체계도층적소묘전경( SEM)관찰、전화학교류조항( EIS)등기술수단적측시대비,설명도층항삼성능여린편평행도배렬정도구유근사선성관계. 실험증명:평행도교고적도층경600 h침포후총조항치변화불대,잉연보지재107 Ω·cm2 ,기삼투솔지유1.41%.
Considering penetration and corrosion resistance of coatings, a polymer-glass flake self-assembly system was studied. A mathematical model of a polymer composite was created to analyze the main factors influencing the degree of parallelism of the model assembly. The mechanism of the main factors acting on the glass flake was ex-plored using molecular dynamics. By modifying the surface glass flakes and controlling the degree of parallelism of glass flakes in the assembly, the penetration into the coating was reduced, thereby improving corrosion resistance. Using scanning electron microscopy ( SEM) , and electrochemical impedance ( EIS) experiments, it was found that the impermeability of the coating and the degree of parallelism has a similar, correlating, linear relationship. The experiments prove that for the coating with a higher degree of parallelism, the change of total impedance value of coatings is not large. After 600 h of immersion, steady at 107Ω·cm2 , permeability was only 1.41%.