Fundamental study of colloidal stability and dispersion of novel nanosized conductive polyaniline (PANI)/prevulcanised latex (PVL) film for antimicrobial applications. Issue 1 (October 2021)

• Record Type: Journal Article
• Authors: Banjar, M F; Suphi, H D; Sarizan, M I; Yahaya, A N A; Khalil, N A; Singh, M; Zulkifli, M
• Is Part Of: IOP conference series. Volume 1195:Issue 1(2021)
• Publication Date: 2021-10
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1195/1/012055
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: A smart material possessed enhanced conductivity integrated in prevulcanized latex (PVL) film produced throughout this work. Also recognizing the synthesis route of PANI was vast and vary, choosing suitable method was great importance corresponding to the aim of study. PANI was prepared through chemical oxidative polymerization of aniline carried out in aqueous solution which aniline dissolved in strong acidic solution (1 M HCl) with the presence of Ammonium Persulphate (APS) as the oxidizing agent and Sodium Dodecyl Sulphate (SDS) as surfactant. However, PANI was readily in acidic condition while PVL in basic and consequently causes a state of immiscibility upon mixing. Hence, PANI formed then mixed with 0.1 – 0.5 % KOH via homogenizer to increase the pH and maintain the homogeneity as well as dispersion to be combined with PVL. Various studies on PANI synthesis and incorporation with latex had been reported but very limited in focusing the colloidal and dispersion stability of the mixture. Zeta potential measurements revealed an effective dispersion and the colloidal stability as the pH of PANI increases. Analysis of mechanical performance using Universal testing Machine revealed that addition of PANI improves greatly in novel film tensile strength and Young's Modulus by 109 % and 230 %, respectively.