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Composition of polyethylene filled masterbatch

Hit count:  Update time:2018/10/11 11:41:38    

The author believes that many friends are relatively unfamiliar with polyethylene-filled masterbatch, and its composition is still unclear. In fact, the composition of the polyethylene-filled masterbatch we want to know is not very difficult. As long as we have a heart, we can certainly learn from some of its relevant knowledge. The composition of the polyethylene-filled masterbatch is quite complex and consists of a variety of materials.


The manufacturer of polyethylene wax summarizes the basis for your choice of carrier resin: In order to increase the strength of the powder filler, low density polyethylene can be used as a carrier resin. The filler is usually used in an amount of 1/4 to 1/5. The best choice is the melt index resin. , good liquidity.

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Low density polyethylene is also commonly referred to as high pressure polyethylene, which is a milky white bead. Non-toxic, odorless, odorless, shiny surface, 0.916 ~ 0.930 density. Its softening point of 105 ~ 120 has good elongation and electrical insulation, but its mechanical strength, insulation moisture, gas insulation and solvent resistance is poor. Its molecular structure is not standardized, its crystallinity (60 ~ 80%) is low, and its crystalline melting point (108 ~ 126 C) is also low.

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In general, the low-density polyethylene should have a melt flow rate of not less than 1.5. The higher the index, the better the intrinsic quality of the masterbatch. In order to increase the dispersibility and fluidity of the polyolefin masterbatch, an appropriate amount of random polypropylene powder or a certain proportion of oligomer may be added. The oligomers include: low molecular weight polyethylene, polyethylene wax, thick flakes. Various specifications. Stearic acid and paraffin are made into animal oils as internal and external masterbatches to produce lubricating oil. The amount of the former should be controlled within 1.1% of 0.7%.


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