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What are the functions of filler masterbatch, and how should it be selected?
Release time:
2022-11-30
During the production of filler masterbatches, functional color masterbatches are used to manufacture plastic finished products. These filler masterbatches exhibit excellent coloring power, with colors that remain distinct from the base material and appear vibrant. The finished products show no black spots or discontinuities in cross-section, and color variation is virtually nonexistent. Gobi-colored masterbatches are more convenient to use, helping to conserve raw materials and reduce labor costs. Moreover, during production, the environmental requirements for masterbatches and their impact on the surrounding environment are minimal. Therefore, based on current trends, the use of functional color masterbatches is expected to increase in the future.
What are the functions of filler masterbatch, and how should it be selected?
During the production of filler masterbatches, functional color masterbatches are used to manufacture plastic finished products. These filler masterbatches exhibit excellent coloring power, with colors that remain distinct from the base material and appear vibrant. The finished products show no black spots or discontinuities in cross-section, and color variation is virtually nonexistent. Gobi-colored masterbatches are more convenient to use, helping to conserve raw materials and reduce labor costs. Moreover, during production, the environmental requirements for masterbatches and their impact on the surrounding environment are minimal. Therefore, based on current trends, the use of functional color masterbatches is expected to increase in the future.
The preferred processing equipment for filled masterbatches is the twin-screw extruder with a twisting mechanism, which offers numerous advantages: continuous production, low energy consumption, high productivity, stable operation, reduced labor requirements, semi-automatic operation, a pleasant working environment, low noise levels, and minimal health risks. Filled masterbatches are primarily produced by incorporating fillers; these fillers and additives impart specific functional properties to the final plastic products, hence the term “functional filled masterbatch.”
The most commonly used filler masterbatch in everyday applications is polyolefin filler masterbatch, which consists of a carrier resin, filler material, and various additives, with the filler accounting for 90% of the formulation. Polyolefin filler masterbatches are primarily used in the production of polyethylene, polypropylene, and other polyolefin plastics.
When selecting a filler masterbatch, we should pay attention to several key considerations to ensure we choose the best option. What are the specific methods for doing so?
The fundamental requirement for pigments used in heat-resistant masterbatches is that they must be able to withstand the temperatures encountered during polypropylene production in order to maintain stable performance. Typically, the operating temperature should be above 270–280°C. In dispersion-filled masterbatches, the pigments must disperse well and be uniformly distributed throughout the matrix, and the dispersants employed must not degrade the quality of the polypropylene fibers. Otherwise, it will be impossible to produce high-quality dope-dyed fibers; process stability will be compromised, and the fibers are prone to breakage or the formation of defective filaments.
Glow-in-the-dark polypropylene dope-dyed yarn has a variety of applications, including use in bed linens, backing fabrics, and knitted goods, where bright color tones are required. Organic pigments are vibrant and luminous and easy to incorporate into the dyeing process; therefore, organic pigments must be used for these applications.
Lightfastness: Under the influence of light, certain pigments exhibit photosensitivity, leading to fading and embrittlement of colored fibers. The lightfastness of a pigment is fundamentally related to its chemical structure. Therefore, when formulating masterbatches, due consideration should be given to the lightfastness of the pigments. When using lightfast pigments, the addition of UV absorbers may also be considered.
Colored fiber polymers exhibit excellent stability when in prolonged contact with the pigments used in hot-fill masterbatches, making them well-suited for colored polyester fibers. Under exposure to light or elevated temperatures, the pigments do not react with the fibers to form new chemical compounds, thereby preserving the polymer’s performance in quilting applications.
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