Conductive coating and preparation method thereof

• Main Author: FANG XIAOLI
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention belongs to the technical field of coatings, and particularly relates to a conductive coating and a preparation method thereof. The preparation method comprises the following steps: adding carbon nanotubes and nano zinc powder into a solvent, carrying out ultrasonic dispersion, adding copper sulfate, stirring and mixing, adding a silver-ammonia solution and an antioxidant, heating in a water bath, stirring, carrying out ultrasonic dispersion, adding a silane coupling agent, stirring and mixing, adding waterborne polyurethane and an anti-settling agent, and stirring to obtain the conductive coating. The problem that the conductivity of a coating is weakened due to the fact that copper in a copper-based conductive coating is oxidized can be effectively solved. 本发明属于涂料技术领域，具体涉及一种导电涂料及其制备方法。所述制备方法包括以下步骤：将碳纳米管和纳米锌粉加入溶剂中，超声分散，加入硫酸铜，搅拌混合，同时加入银氨溶液和防氧化剂，在水浴加热下搅拌，超声分散，加入硅烷偶联剂，搅拌混合，加入水性聚氨酯和防沉剂，搅拌即可获得导电涂料。本发明能够有效解决铜系导电涂料中因铜被氧化而导致涂层导电性减弱的问题。