Colored Teflon products are difficult to control due to […]
Colored Teflon products are difficult to control due to high production technology requirements and chromatic aberration stability. At present, most of the domestic filled Teflon products are mainly dark-colored products.
Colored Teflon products are difficult to control due to high production technology requirements and color difference stability. At present, most of the domestic filled Teflon products use dark-colored products as the leading products. Colored filled Teflon products are not only reflected in the beautiful color, but also their basic performance is improved. Therefore, Suzhou Meiao New Material believes that the proportion of colored filled Teflon products will become larger and larger in the future development. Generally, they are imported The PTFE filled products in the dynamic seal are mainly colored products; the coloring research of Teflon products is of great significance to the development of filled PTFE products.
Because Teflon has a very high melt viscosity, Teflon coating cannot be processed by general plastic processing methods, but can only be processed by powder metallurgy molding, and the molding temperature is very high (about 370°C) and the heat preservation time is long (thick wall products) Up to about 10 hours), only some inorganic pigments of all existing pigments can meet the processing requirements of PTFE. Inorganic pigments are usually metal oxides, sulfides and sulfates, chromates, molybdates and other salts and carbon black. Except for lead salts, chrome yellow, and cadmium orange, they have excellent thermal stability and light stability, but their coloring power is much worse than organic pigments, and the variety of pigments is far less abundant than organic pigments, so the color matching with inorganic pigments is far less than organic Pigments are as simple and convenient, and the colors of color matching products are not as colorful as organic pigments.