[2PS-232]
Improvement in Curing Reaction and Physical Properties of Butyl Rubber Composites using Polydopamine-Coated Carbon Nanotubes
발표자이신우 (충남대학교 유기응용재료공학과)
연구책임자정영규 (충남대학교 유기응용재료공학과)
공동저자이신우 (충남대학교 유기응용재료공학과), 정영규 (충남대학교 유기응용재료공학과)
Abstract
Butyl rubber (IIR) is extensively used in applications such as tire liners, inner tubes, and flexible electronics due to its superior gas barrier and vibration-damping properties. Polydopamine (PDA), known for its unique adhesiveness, biocompatibility, and organic solvent-free synthesis, was employed to enhance the dispersion and interfacial adhesion of carbon nanotubes (CNTs) in IIR. A self-polymerization method was used to coat the CNTs with a layer of PDA. The vulcanization process was analyzed through FT-IR spectroscopy, while microstructural and rheological properties were investigated using electron microscopy and rotational rheometry. Tensile properties, damping behavior, and electrical conductivity of the composites were evaluated. The improved dispersion of PDA-CNT, attributed to both covalent and non-covalent interactions with the matrix, resulted in enhanced curing efficiency, mechanical performance, and conductivity of the IIR composites.