[Features, composition and func]
Release date:[2020/5/27] Total access[78]Secondary

Features of functional masterbatch


Particle size: The granular solid composed of particles with a particle size of 0.1 ~ 3mm is a powdery solid. 0.1mm (pure μm) is a powder composed of fine particles; 1 ~ 10μm is a fine powder; 0.1 ~ 1μm is an ultrafine powder;》 3mm particles are broken solid blocks. The smaller the particle size, the denser the resulting mixture. However, the smaller the particle size of the same kind of solid, the easier it is for the particles to adsorb and agglomerate with each other. This kind of agglomeration is not easy to open when mixed with another single solid particle, and it is also difficult to disperse in the plastic melt. Particle size distribution: The filling property of powder with a wide particle size distribution is denser than that with a narrow particle size distribution. Because the small particle size can enter the gap between the large particles, but it is difficult to mix the two powders with a large difference in particle size.


Functional masterbatch hardness


Powder particles with too high hardness—ceramic powder, inorganic antibacterial agent, quartz sand, etc. can cause serious wear on the surface of the mixing equipment, which not only reduces the service life of the equipment, but also makes the color of the mixture dark and gray, and directly turns black when serious .


Composition of functional masterbatch


Main composition of filled masterbatch:


 1). Filler: such as calcium carbonate, talc, etc.


 2). Coupling agent: such as carbonate silane, etc.


 3). Dispersant: such as polyethylene wax and stearate.


 4). Carrier resin. Moisture-absorbing defoaming masterbatch The moisture-absorbing defoaming masterbatch is composed of metal oxide + resin + auxiliaries.


Function of functional masterbatch: The cooling masterbatch is mainly used for PP and can probably reduce the temperature by 30-50 degrees. 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 amount of single color masterbatch is 20% -30%, the product is 0.2% -0.3 %, Too much will affect the printing effect of the product. In the production of reinforced masterbatch, sometimes the material is easy to accumulate the discharge opening, which is mainly caused by the air entrained by the talc powder. It should be heated and stirred during production to melt the wax, wet lubricate the stone powder or add white mineral oil. Moisture-absorbing and defoaming masterbatch The moisture-absorbing and defoaming masterbatch mainly removes the water content and unknown low molecular volatiles in the plastic, so that the plastic products are free of water and bubbles, so that the drying process can be reduced while ensuring the quality of the products. Flame-retardant masterbatch Flame-retardant masterbatch is mainly used in flame-retardant modification occasions. Foam masterbatch Foam masterbatch is often used in PE, PP, EVA, etc.


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