Calcium carbonate masterbatch granulator
Processing of ultrafine heavy calcium masterbatch
Since most plastic raw materials except polyvinyl chloride resin are granules of several millimeters, ultrafine heavy calcium There is only a few micrometers difference in volume between the two and a huge difference in density, making it difficult to mix them evenly. Moreover, extruders and injection molding machines are processing equipment in which materials move along the axial direction. The mixing uniformity of materials entering the extruder and injection molding machine in the axial direction is very limited. The vibration of the processing equipment causes the resin particles to float up, causing the components to be uneven when the hopper is unloading. As a result, the components in the molded products are uneven and qualified products cannot be obtained. Therefore, the use of ultra-fine heavy calcium masterbatch can solve the problem of uneven components in the molded products. has been solved.
Ultra-fine heavy calcium masterbatch is mainly made by mixing ultra-fine heavy calcium with carrier resin, kneading and granulating into particles with a volume similar to the base resin of plastic products. This masterbatch includes ultrafine heavy calcium carrier resin and additives. Before processing the masterbatch, the ultrafine heavy calcium should first be surface-modified to increase its dispersion and cross-linking with the resin. Then it is mixed with carrier resin, kneaded and granulated.