What aspects should be paid attention to when calcium carbonate fills the masterbatch for granulation?
2019-01-23 10:39 来源:凯杰塑料填充母料厂家作者:凌 Time: 2019-01-23 10:39 Source: Qiagen filled with plastic masterbatch manufacturers Author: Ling
In the production and processing of calcium carbonate filling masterbatch, what aspects of calcium carbonate powder need attention.
From the perspective of chemical properties, calcium carbonate is an inorganic material and rich in resources. From a microscopic perspective, it is hexagonal and tetragonal, mostly crystalline particles. Many calcium carbonates have relatively high whiteness and good fluidity. Obtaining calcium carbonate is also extremely simple, so it is widely used in filled modified plastics. Below, Kaijie Plastics will introduce to you which factors have influence on calcium carbonate filled masterbatch ?
First, calcium carbonate content
最重要的因素，但是碳酸钙含量有固定的技术指标，总体来说填充母料对其含量要求相对较高，它的加工性能稳定性与碳酸钙含量成正比关系，所以为了避免填充母料在使用中受挫，防止非金属杂质含量过高，要把握碳酸钙含量，而且还要防止其他杂质的混入，以致产品出现黑点。 This is the most important factor affecting the professional calcium carbonate filling masterbatch , but the calcium carbonate content has fixed technical indicators. Generally speaking, the filling masterbatch has relatively high requirements for its content. Its processing performance stability is proportional to the calcium carbonate content. It is directly proportional, so in order to avoid the frustration of the filling masterbatch in use and prevent the content of non-metallic impurities from being too high, it is necessary to grasp the content of calcium carbonate, and also to prevent the mixing of other impurities, so that the product appears black spots.
Second, the whiteness of calcium carbonate
In many cases, it is found that the whiteness and colorability of the filled masterbatch are not good. This is mainly because the whiteness of calcium carbonate has a direct impact on it. Because of the extremely strict white carbonate regulations in the masterbatch industry, and for decades, Modified masterbatch manufacturers have extremely delicate whiteness requirements when they are produced. Generally, there is a fixed detection instrument for detecting whiteness. If there is no detection instrument, the whiteness of the product cannot be distinguished by the naked eye, and only the same formula can be used to distinguish the whiteness of calcium carbonate.
Third, the moisture of calcium carbonate
First of all, we analyze from the raw materials of calcium carbonate. The raw materials of high-quality calcium carbonate-filled masterbatch are mostly calcite and natural marble, so there is no moisture; but after a series of processing procedures, from a large solid to a powdery powder In addition, in the process of storage, transportation, etc., it is often absorbed by moisture, and a small amount of volatile matter is generated in it. Once the volatile matter is too high, it will have a greater impact on the modified masterbatch. Therefore, it is still necessary to detect the moisture content, otherwise it will cause the stability of product quality.
Therefore, through our introduction above, we can know that if we want to grasp the quality of calcium carbonate-filled masterbatch plastic, we must first control the raw materials, and secondly, we must consider the processing technology. In addition to the above main factors, including calcium carbonate particle size distribution and particle shape will also have a certain impact on it, for example, taking "particle shape" as an example, it may affect the mechanical properties of modified masterbatch plastic products.
Kaijie Plastic——24 years of experience in the research and development of filled masterbatch. ，我们将竭诚为您服务！ If you want to know about transparent filling masterbatch, blown film filling masterbatch, injection molding filling masterbatch, hollow filling masterbatch, etc., please consult the online customer service. If you do not want to type, please call the national consultation telephone 0571-647-4693 , we will be wholehearted at your service!
马上送免费样品一份哦！ Dear , move your finger, follow Kaijie WeChat public account : jdkjsl send a free sample immediately!
Copyright: Hangzhou Kaijie Plastic Technology Co., Ltd.
Reprint please indicate the source or URL http://czjtaq.com