Polyperfluoroethylene propylene is a copolymer of tetrafluoroethylene and hexafluoropropylene, referred to as fluorine-46 (or F-46); English name is fluorinated ethylenepropylene, referred to as FEP. For the fluoropolymer market, the biggest change since the 1990s was the sharp increase in the production and sales of polyfluoroethylene propylene. The huge waves of demand for FEP have promoted the research and development of post-processing and product grade diversification. Among them, the traditional white FEP insulated wire and cable has a tendency to be replaced by colored cables. This color cable not only requires full compliance with high temperature insulation requirements, but also has a bright color and is easy to distinguish. It not only beautifies the product, but also serves as a symbol. This will greatly facilitate the manufacture and use of wire and cable, improving the level of installation and commissioning. Since color FEP is mainly applied to wire and cable, the electrical performance requirements are extremely strict, which puts high demands on FEP colored resin. This article describes the requirements for the preparation of FEP masterbatches for pigments. Due to the high melting temperature of FEP, the choice of pigment is very important. Typical melting temperatures range from 165 to 370 ° C and most of the pigments used are inorganic. Various inorganic pigments capable of withstanding high temperatures above 380 ° C and having stable chemical and physical properties can be used. Usually, most of the red, yellow and orange are heavy metals, cadmium chromate and lead chromate can obtain bright colors and better stability, light blocking and dispersibility. Brown, blue and green are made of iron oxide. Preparation of a mixture of cobalt and nickel, they can also have the properties of the above pigments, but the chromatogram is limited. As the demand for “no heavy metal color†grows, red, yellow, orange and some green formulas are very limited. Only orange pigments are used in the high temperature polymer family, and the results are bright, slightly transparent and difficult. Dispersed products. The literature has reported that Wodniok Lothar applies antimony pigments to high temperature extruded polymers as a stable alternative to environmentally harmful Cd pigments. This composite can be extruded at temperatures above 270 °C. For example, a composite containing 95% Teflon FEP100 and 5% Red149 pigment was repeatedly extruded 5 times at 290-320 ° C, and its color changed only slightly. 3Ply Face Mask, Disposable 3ply Face Mask,Non-Woven 3ply Face Mask,3ply Face Mask with Ear Loop Ningbo Jiashang textile co., LTD., , https://www.cn-jshang.com