Views: 412 Author: Site Editor Publish Time: 2022-09-15 Origin: Site
Functional masterbatches have always been very popular with everyone, and in recent years, the development of masterbatches has been getting faster and faster. I don’t know how much you know about functional masterbatches. Today, I will understand with you. Let's take a look at the relevant knowledge of functional masterbatch.
Classification of functional masterbatch
Brightening masterbatch is also called bright masterbatch, the purpose is to improve the brightness of the product. The main brightener is ethylene bis-stearamide, the dosage of color masterbatch is 20%-30%, and the dosage of product is 0.2%-0.3%. Too much will affect the printing effect of the product. When the color masterbatch is strengthened, sometimes the material is easy to accumulate in the lower mouth. Mainly caused by air entrained by talc. Heat and stir during production to melt wax, wet lubricating stone powder or white mineral oil.
Hygroscopic defoaming masterbatch
The moisture absorption and defoaming masterbatch can mainly remove the water and unknown low-molecular volatiles contained in the plastic, so that the plastic products are water-free and bubble-free, thereby reducing the drying process while ensuring the quality.
Flame retardant masterbatch
Flame-retardant masterbatch is mainly used for flame-retardant modification applications.
Foaming masterbatch is often used in PE, PP, EVA, etc.
How to choose pigments for functional masterbatch
1. Heat resistance. The most basic requirement for the pigments used in the white color masterbatch to withstand the temperature during the production of polypropylene fiber and maintain its performance is stable. The temperature resistance temperature is generally required to be above 270~280°C.
2. Dispersibility. The pigments used in the masterbatch should be excellent in dispersibility, and should be evenly dispersed in the black color masterbatch, and the dispersant used will not reduce the quality of the polypropylene fiber. Otherwise, it will not be able to produce good quality dope colored fibers, and the operation will be unstable. When the fiber is drawn, it is easy to break or produce abnormal fibers.
3. Brightness. The coloring of polypropylene stock solution has many uses. Among them, it is used for bed cover base fabrics and knitted fabrics, which require bright colors. Because organic pigments are brighter and brighter and easy to color, organic pigments must be used for the above-mentioned purposes.
4. Light resistance. Under the action of light, some pigments have a photosensitive effect, which makes the colored fibers fade and brittle, and the light resistance of the pigment is basically related to its chemical structure. Therefore, when making color masterbatches, pay full attention to the light resistance of the pigment. When you need to use it, you can consider adding a UV absorber.
The functional masterbatch products are made of polypropylene resin as a carrier, adding a certain amount of pigments, antioxidants and other additives, and are mixed with a twin screw. The functional masterbatch has high temperature resistance, anti-aging, non-toxic, and non-fading , Migration resistance, good dispersion, strong coloring ability and other advantages. If you plan to purchase this kind of masterbatch, please contact us in time.