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How to really solve the masterbatch dispersion and precipitation problem

Categories: Latest NewsStars: 3Stars Visit: - Release time: 2015-08-23 14:49:00
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 Both filling masterbatch, color masterbatch, and foam masterbatch and other functional masterbatch, masterbatch dispersion is always priority, a top priority. Our users in the selection of masterbatch, consider above all is the stand or fall of masterbatch dispersion, second masterbatch and price factors influence on the performance of the product itself. Manufacturer of masterbatch, regardless of the technology level of high and low, knows very well as long as the best choice of scattered additives and the carrier, using a large enough quantity, then scattered problem is not the problem, but also don't have to worry about with additives, defects such as precipitation, of course, cost is also very significant. In the current masterbatch market environment, the price of the masterbatch weak for a long time, the market competition is intense, and the requirements of customers is more and more picky. This occurs at present a lot of masterbatch production factory is a dilemma: one is to use such as EBS, high-end PE wax additives production of masterbatch, masterbatch dispersion and performance can meet the customer's requirements, but not cost down, customer acceptance is low; Second is to use stearic acid, paraffin wax, such as low PE wax additives masterbatch production, cost is lower, the price on the customer easy to accept, but the dispersion effect is not ideal (white spots, lines, spots, decorative pattern, feel is rough, etc.), masterbatch poor performance, additives (powder) products surface precipitation phenomenon, masterbatch quality stability, the stability of the customer is also poor.
So, is there any way can not only improve the masterbatch dispersion, put an end to separation phenomenon, does not increase cost can even reduce our costs? Before is difficult, but after the advent of applied to the composite of masterbatch dispersant, relatively easy to solve this problem.
Composite dispersant have dispersed, lubrication, coupling, cladding, etc multiple effect, overcomes the traditional dispersing agent (such as: stearic acid, PE wax, stearic acid salt, etc.) function relatively single, dispersion effect is not ideal, masterbatch unstable disadvantages including product quality, can more effectively improve the dispersivity of the masterbatch; At the same time, the compound dispersant won't produce the phenomenon of precipitation, such as stearic acid, and the price is relatively cheap, with mid-range price of PE wax. Compared with original EBS masterbatch production experiment, the compound dispersant dispersion performance than EBS.
In masterbatch formulation, additives with composite dispersant as the main body (adding proportion based on cost and quality requirements in regulation between 2-6%), and then add some other lower-end additives (such as paraffin wax, stearic acid, zinc, etc.) to fill the amount. Already so make sure that the masterbatch has good dispersion, precipitation and solved the defects, and the cost is not rising, and even on the basis of the original lower 5 ~ 10% or more.
Keywords in the article: color masterbatch