Color masterbatch is a new type of special colorant for polymer materials. It is mainly used in plastics. Today, follow the footsteps of  Sainuo to learn some knowledge about additives in color masterbatch.

1. Effect of low molecular weight  polyethylene wax  on the surface of Color Masterbatch

Low molecular weight polyethylene wax has unstable quality and high content of low molecular weight. The surface of color masterbatch products is prone to precipitates, frosting, powder dropping, silver wire, pores, spots, gas burning and other defects. In case of such feedback from downstream customers, please check the selected polyethylene wax. Sainuo  pe wax SN118 is the best choice for high-grade color masterbatch.

2.  How to solve the problem of masterbatch dispersion and precipitation?

Whether it is filling masterbatch, color masterbatch, defoaming masterbatch and other functional masterbatch, the dispersion of masterbatch is always the primary issue and the most important. The appearance of white spots, lines, spots, patterns and rough feel of the masterbatch is mainly caused by poor dispersion. The use of high molecular weight dispersant  pe wax to produce masterbatch can solve the dispersion problem of masterbatch, improve the appearance of segregation such as powder dropping on the surface of products, and meet the performance requirements of customers.

3. Application of ultra high molecular weight modified ethylene wax in Masterbatch

Ultra high molecular weight modified ethylene wax has high viscosity and special molecular structure, which can solve the dispersion problem that ordinary polyethylene wax cannot solve. It has a good dispersing and brightening effect on carbon black, and can improve the toughness of masterbatch and products. It is the best choice for soft masterbatch dispersion lubricant. Sainuo product 619 also has this kind of property, which can solve all high concentration dispersion problems.

4. Reasons for poor composite performance of Color Masterbatch film products

Improper selection of dispersant, high addition amount and precipitation of low molecular substances will reduce the polarity of the film surface and make the film unable to be compounded at high temperature. The use of Sano 118e product can effectively avoid such problems by taking into account the lubrication and dispersion effect, high processing efficiency and excellent dispersion effect.

5. Selection points of transparent color masterbatch dispersion lubricant

The transparent color masterbatch has high requirements on the transparency, impurities, color stability, low molecular substances, etc. the improper selection of additives will also affect the transparency, impurity color point, color stability and surface gloss of the transparent color masterbatch. Sainuo EBS is comparable to similar international dispersing additives. It has high transparency, bright color, no impurities, and can play an effective dispersing and lubricating role with a small amount (no more than 0.1%) to ensure the quality requirements of transparent color masterbatch.

6. Selection of dispersant in Color Masterbatch

On the one hand, it is necessary to promote the dispersion effect of the pigment in the carrier; On the other hand, it is necessary to provide lubrication effect and improve the processing fluidity of master batch. Generally, the melting point of dispersant should be lower than that of resin, and it has good compatibility with resin and good affinity with pigment. Sainuo dispersant 222 has good lubricating and dispersing properties and high temperature resistance. It is a good choice for dispersant in the production of masterbatch.

7. Reasons for black spots of black masterbatch

The black masterbatch is poorly dispersed, and the black spots are mainly due to the high content of carbon black; The selection and collocation of dispersing lubricant are unreasonable; Carbon black is not fully wetted and coated; The specific gravity of carbon black is easy to float, and the mixture is uneven with dry powder; Mixing and extrusion process are not suitable for black masterbatch processing. These reasons lead to the agglomeration of carbon black particles can not be fully opened, resulting in poor dispersion and black spots.

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Qingdao Sainuo Chemical Co.,Ltd. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS,Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.

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