In the present work, the corrosion resistance performance and biocompatibility of Polypyrrole/Chitosan (PPy/CHI) composite coated Ti was studied. The deposition of composite coating was carried out by electropolymerization method. The deposited PPy/CHI composite coatings were different in morphology, structural, surface roughness and wettability compared PPy coated Ti. The presence of composite coating was confirmed by solid ¹³C NMR. The PPy/CHI composite coating showed enhanced microhardness and adhesion strength compared to the PPy coating. The corrosion protection ability of PPy/CHI composite coatings at various applied potentials was analyzed by dynamic electrochemical impedance spectroscopy (DEIS), exhibited higher impedance in all the potentials compared to uncoated and PPy coated Ti. The lower corrosion current density obtained for PPy/CHI-2 composite coating from polarization studies revealed increased corrosion protection ability in SBF solution. The stability of composite coating was confirmed by immersion studies. PPy/CHI-2 composite coating immersed in SBF solution enhances hydroxyapatite (HAp) formation.

在目前的工作中，研究了聚吡咯/壳聚糖（PPy / CHI）复合涂层钛的耐蚀性能和生物相容性。复合涂层的沉积通过电聚合方法进行。与PPy涂层的Ti相比，沉积的PPy / CHI复合涂层的形貌，结构，表面粗糙度和润湿性不同。复合涂层的存在已通过固体¹³确认1 H NMR。与PPy涂层相比，PPy / CHI复合涂层显示出更高的显微硬度和附着强度。通过动态电化学阻抗谱（DEIS）分析了PPy / CHI复合涂层在各种施加电势下的腐蚀防护能力，与未涂覆和涂覆PPy的Ti相比，在所有电势下均表现出更高的阻抗。极化研究获得的PPy / CHI-2复合涂层较低的腐蚀电流密度表明SBF溶液中的腐蚀防护能力增强。通过浸没研究证实了复合涂层的稳定性。浸入SBF溶液中的PPy / CHI-2复合涂层可增强羟基磷灰石（HAp）的形成。