Black mother knowledge of the market, plastic processing necessary!
In the plastic processing production cannot do without filling masterbatch, but filling masterbatch is a double-edged sword, its usage is very particular about. Color is black masterbatch, if you add too much, increase the cost of plastic products, but also will damage the product; adding amount is too small, anti aging agent and carbon black masterbatch not fully fuse, so black masterbatch dosage is an important technology.
Black mother knowledge of the market, plastic processing necessary
In real life, black mother to anti-aging agent, used in conjunction with, is this mix and match, the anti aging effect is more significant, also to a certain extent, reduced the amount of black mother.
Join the amount is too small, will cause the carbon phase WIP in the discontinuous case, in combination of boundaries, molecular plastic connection will very fragile, not closely, if under UV irradiation, carbon black will a lot of heat absorption products, accelerated the oxidation products. In this case, black masterbatch using backfired into the impurities in the product.
6 decisive factors in black masterbatch quality
Black masterbatch is the use of carbon black production, and factors that affect the quality of black masterbatch, mainly reflected in the following six aspects:
1, dispersion of carbon black is a mixture of students very difficult to handle and dirty, it was full of dust, light and fluffy. Unless a large scale of treatment is adopted, it will contaminate the machine and workers, so that the working environment will become dirty.
2, the covering force for for waste or recycled polymer masterbatch, this factor is particularly important, in these cases, the role of black is to cover the other colors from waste. Large particles of carbon black coloring ability is bad, is not easy to be covered by all other colors in the lower. As a result, only get off color. In the melting process, correctly first choice has high tinting strength of carbon black to cover the existing color ability is called coverage.
3, rheology if a masterbatch itself has good dispersion, but it can not flow into the molded material, the effect of the production is not ideal. In general, for the rheology of backing masterbatch with high resin production. In order to save costs, some commercial masterbatch production materials reuse, waste or recycled materials as the carrier resin.
4, compatibility if masterbatch is using the cut chip or recycled materials produced, then it may contain contaminants or other infusible polymers. This will cause some unexpected, difficult to constrain the trouble, a waste of time and the final consumer of raw materials. At this time, can be used to produce high quality base resin masterbatch, masterbatch has good compatibility in the melting process. High quality color masterbatch can use LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials to production.
5 and stability in today's global economy, international customers of masterbatch quality, raw material of stable performance requirements of high is absolutely necessary, which is decided by the fifth factor of black masterbatch quality. One of the main performance is stable the proportion of carbon black. If the percentage of carbon black is fluctuating, so need the number of molten masterbatch is not the same, to the production of products of the same hue could not.
6, color shading on the market with various types of carbon black masterbatch for coloring, but all color and prices also very different. Large granular carbon specific small particles of carbon black with low coloring degree and different background. Large particles of black masterbatch for such as garbage bags film production, but does not apply to produce those focusing on the beautiful products, such as TV signs or need anti ultraviolet places such as agricultural film or external pipeline.
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