Plastic moisture removing foam eliminating mother particle

Abstract

The present invention relates to a kind of plastic exsiccation defoaming mother granules for plastic application industry. Said mother granule composition includes (by wt%) 60-80% of calcium oxide, 10-20% of ethylene-vinyl acetate copolymer and 10-20% of amorphous olefin-copolymer dispersing agent. It can be used for exsiccation and defoaming in plastic product production.

Description

technical field [0001] The invention relates to the plastic application manufacturing industry, in particular to a plastic masterbatch used in the plastic application manufacturing industry. Background technique [0002] At this stage, the plastic application manufacturing industry can be said to be everywhere. There are all kinds of plastic products, and the fields involved are extremely wide. In the plastic application manufacturing industry, a common problem is that the water contained in the plastic itself In the twin-screw extrusion granulator, when the plastic is heated above 100°C, or even as high as 200°C, the water vaporizes rapidly at high temperature, and the water vaporizes in the machine. In addition, it is wrapped in molten plastic, and the water vapor cannot If it escapes, it will stay in the plastic or on the surface to form many plastic holes and air bubbles. Such plastic holes and air bubbles will not only affect the appearance finish of the final product, ...

AI Technical Summary

Problems solved by technology

Both of the above two methods have helped small and medium-sized enterprises to invest in difficult problems, that is, they can solve the bubbles in plastic products without purchasing high-priced dehumidification and defoaming machines, but the above two methods also have shortcomings. That is, this kind of plastic dehumidification and defoaming masterbatch (granule) with high and low density polyethylene, or low molecular weight polyethylene wax as a carrier, or as a surface modifier, can only be used for soft rubber, not for PS (Polystyrene resin) ABS (acrylonitrile-butadiene-styrene copolymer) due to poor mutual solubility between the two, cracks will appear and the strength of the plastic will be reduced. Secondly, this defoaming masterbatch has strong moisture absorption and is easy to absorb air. Ineffective due to the moisture in it, so it is strictly restricted in storage and use, causing difficulties in use