The first is for coloring. Used for engineering fluoroplastics coloring; used for outdoor products coloring; used for the preparation of light-colored varieties and adjust the color.

The second is for conducting electricity. A sufficient amount of carbon black is incorporated into the fluoroplastic to impart antistatic or conductive properties to the fluoroplastic.

Third for anti-aging. In addition to its colorant function, carbon black is alsoRecycling fluoroplasticsEnterprises believe that it is a low-cost and high-quality UV stabilizer. Carbon black as an ultraviolet absorber is mainly used to extend the outdoor service life of fluoroplastic products.

Fourth for reflective infrared function (energy saving). High-performance composite inorganic pigments are used in fluoroplastic building materials. Its cooling and energy-saving effect is more and more concerned by the recycling of fluorine plastics enterprises. With the improvement of environmental protection and energy saving requirements of recycling fluoroplastics enterprises, the infrared reflective properties of composite pigments in inorganic pigments will be rapidly developed and used.

Inorganic pigments have a high relative density, generally 3.5~5.0, and their tinting strength is poor, but they have excellent heat resistance and light resistance.

Inorganic pigments are fine particles, and the particle diameter of the primary particles is mostly between a few tenths of a micron and a few microns, and the maximum does not exceed 100 microns. In these small particles, the molecules have a certain arrangement, the vast majority of pigment particles are in the form of crystals, inorganic pigments to disperse the way of coloring fluoroplastics, so different pigments different crystal structure, crystal shape, crystal size and its distribution, is bound to affect its performance and use.

Inorganic pigments have the advantages of excellent heat resistance, dispersion and light resistance (weather), so they are widely used in the coloring of various fluoroplastics, especially suitable for engineering fluoroplastics with high molding temperature and harsh use conditions.

The nature of the inorganic pigment particles also has an effect on the coloring performance. Inorganic pigment particle size, crystal structure, surface charge and polarity and other physical properties will also affect its color, hiding power, tinting strength, and also affect its performance in the application of fluoroplastics.

Safety properties of inorganic pigments in the coloring of fluoroplastics. In addition to titanium dioxide, carbon black and ultramarine blue, all inorganic pigments contain heavy metal components. In the past 10 years, the discussion of heavy metals in the environment by recycling fluoroplastics companies has become popular worldwide, so almost all customers have a clear requirement: colored fluoroplastics do not contain heavy metals. All metals with a density greater than 3.5~5g/cm3 are called heavy metals, and some metals with a density greater than 4.5g/cm3 are called heavy metals (including various metals and precious metals). Therefore, by this definition, all inorganic pigments except aluminum powder, carbon black, ultramarine blue and ultramarine violet contain heavy metals.

This article comes from:www.tflpfa.com