Preparation And Properties Of Antistatic Thin Films With Strong Adhesion And Low Resistance Carbon Nanotubes

PET films have excellent mechanical properties, high transparency, and have excellent barrier properties to oxygen, water vapor, and are widely used in the fields such as industrial films, packaging films and photovoltaic films. But PET films are easy to produce static electricity, which can lead to difficulty of heat sealing, contamination of samples, malfunction to device or even cause explosions and other disasters. So transparent antistatic film has a great significance for production and living. The conductive material used in the preparation of an antistatic film is mostly metal, metal oxide, carbon-based materials, antistatic agents and conductive polymers, etc. But there are many drawbacks of these materials, such as high cost, the presence of timeliness, easy to fall off, difficult to disperse or low transparency.Carbon nanotubes (CNTs) is a new carbon structure and was discovered in 1991, it is the graphene rolled into a seamless, hollow tubular structures. It has excellent properties, such as good electrical conductivity and thermal conductivity, resistance to corrosion and heat, and electron ballistic transport so that no scattering. A small amount of carbon nanotubes may form a layer of an isotropic carbon nanotube conductive film with high transmittance and low surface resistance, those characteristics make carbon nanotubes are widely used in flat panel displays, touch screen, shine diode and antistatic film packaging.In this paper, the carbon nanotube antistatic films were prepared by bar coating, Scotch TM tape adhesion test method was used in this experiment, adding a binder in the carbon nanotube ink greatly improves the adhesion between the conductive layer and the substrate by comparing to the adhesion of binder-free ink antistatic film. Nitric acid treatment reduces the surface film resistance. Antistatic carbon nanotube thin films was used for the antistatic performance test, such as resistance to temperature and water, resistance test time, resistance to UV and organic solvent acetone.