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Introduction of calcium carbonate high filling masterbatch granulator

Views:45     Author:Site Editor     Publish Time: 2017-03-30      Origin:Site

         The high calcium carbonate masterbatch has the characteristics of high production efficiency, low cost and high stability.Let's get to know the machine.

Configuration of calcium carbonate high filling masterbatch granulator:

Granulation equipment: JD single screw series;

Host power: 55KW--90KW;

Processing capacity: 150 kg -1000 kg / h

Grain cutting mode: air cooling surface

calcium carbonate high filling masterbatch granulator configuration 2:

Pre processing: high speed mixer;

Granulating equipment: JS twin screw series;

Host power: 45KW--250KW;

Processing capacity: 150 kg -1500 kg / h

Grain cutting mode: air cooling surface

        The performance of the whole machine with high calcium carbonate filling masterbatch: energy saving, the power consumption is 60%.

        The high concentration of fillers and additives in the high filling masterbatch of calcium carbonate, when used, must be added a certain amount of basic resin after mixing and then processing;

        The utility model has the advantages of continuous production, stable quality, high production efficiency, low energy consumption, low labor intensity and good operating environment. Masterbatch refers to the plastic processing and molding process, in order to facilitate the operation, will be required for a variety of additives, fillers and a small amount of carrier resin mixed with the first mixture, the preparation of pellets called masterbatch. The masterbatch is composed of carrier resin, filler and various additives. The content of masterbatch additives or fillers limit several times to ten times than the actual requirements in the plastic products. In the molding process, according to the content of the components in the masterbatch and the amount needed to be added in the actual product, the ratio of the master batch and the matrix resin is adjusted.                   Masterbatch can usually be divided into ordinary filling masterbatch (referred to as filling masterbatch) and functional masterbatch, such as color masterbatch, anti fog masterbatch, etc.. The main component of the filler masterbatch is filler, which is mainly used in the processing of polyolefin (polyethylene and polypropylene).

       Selection of raw and auxiliary materials for polyolefin filled masterbatch:

       Polyolefin filling masterbatch is made up of three parts: carrier resin, filler and various additives. The main component of the filler is up to 90%. Polyolefin filled masterbatch is mainly used in the production of polyolefin plastics, such as polyethylene and polypropylene. Such as: polyethylene hollow blow molding products, polyethylene injection molding products and polyethylene film, polypropylene woven bags, woven fabrics and packaging, etc.. Generally choose the raw materials of olefin filling masterbatch, to take into account its good performance, low cost.

       (1) carrier resin

       The performance and cost of polyolefin filled masterbatch mainly depends on the carrier resin, usually according to the use of masterbatch, the general content of carrier resin is 10%~20%. The carrier resin used in the polyolefin filling masterbatch should have good compatibility with the resin matrix. From this point of view, the general carrier resin resin matrix. In addition, when the carrier material is selected, the melting point and melt fluidity should be taken into account. At present, there are still some enterprises are still using LDPE (1F7B) as the carrier resin, which is mainly because of this brand of low melting point, high melt flow rate (7g/10min). But due to high melting temperature of polypropylene (than ordinary polyethylene high 20~40 C) limits its use in polyethylene plastic, and atactic polypropylene or polypropylene powder synthesized by liquid phase bulk melting point does not exceed 100 degrees, so it is widely used as a carrier for polyolefin filling masterbatch.

       LDPE (1F7B) is used as a carrier for polyolefin resin carrier, and its advantages are low melting point, high melt flow rate and high melt strength. If the choice of low density polyethylene melt flow rate and low cost low, such as 1I2A-1 or 2F2B, because of their low melt flow rate, generally about 2g/10min, in the process, need to add more wax and additives, in order to better dispersed in the matrix resin masterbatch. It is usually used as the carrier to make the filling masterbatch, which is more suitable for polyethylene plastic products. For polyethylene film filler masterbatch on the carrier resin requirements are higher and more stringent.

      (2) filler

        The main fillers used in the filling of polyolefin masterbatch are heavy calcium carbonate, followed by talc, kaolin, wollastonite powder and other inorganic fillers. It is an important technical index for any inorganic filler, particle size and particle size distribution. The smaller the particle size is, the narrower the distribution is, the better the filling effect is. In addition, the filling effect is good or bad with the dispersion, the smaller the particle size, the more difficult the dispersion, the higher the price. Purity is another important technical index of inorganic filler, the less impurity content, the higher the purity. General selection of heavy calcium carbonate, the content as high as possible, the general requirements of more than 94%. To ensure that other indicators meet the requirements, the price is low, in order to reduce the cost of masterbatch.

        (2) carrier resin

        The performance and cost of polyolefin filled masterbatch mainly depends on the carrier resin, usually according to the use of masterbatch, the general content of carrier resin is 10%~20%. The carrier resin used in the polyolefin filling masterbatch should have good compatibility with the resin matrix. From this point of view, the general carrier resin resin matrix. In addition, when the carrier material is selected, the melting point and melt fluidity should be taken into account. At present, there are still some enterprises are still using LDPE (1F7B) as the carrier resin, which is mainly because of this brand of low melting point, high melt flow rate (7g/10min). But due to high melting temperature of polypropylene (than ordinary polyethylene high 20~40 C) limits its use in polyethylene plastic, and atactic polypropylene or polypropylene powder synthesized by liquid phase bulk melting point does not exceed 100 degrees, so it is widely used as a carrier for polyolefin filling masterbatch.

       LDPE (1F7B) is used as a carrier for polyolefin resin carrier, and its advantages are low melting point, high melt flow rate and high melt strength. If the choice of low density polyethylene melt flow rate and low cost low, such as 1I2A-1 or 2F2B, because of their low melt flow rate, generally about 2g/10min, in the process, need to add more wax and additives, in order to better dispersed in the matrix resin masterbatch. It is usually used as the carrier to make the filling masterbatch, which is more suitable for polyethylene plastic products. For polyethylene film filler masterbatch on the carrier resin requirements are higher and more stringent.


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