With the development and improvement of China’s chemical industry system, the market of chemical additives is gradually expanding. For silicone masterbatch, the technology and process are extremely transparent. Many products of large companies can also be made by small companies. There may be some differences in performance, but the appearance seems to be the same. For this reason, many manufacturers sometimes choose unqualified products or even inferior products when choosing silicone masterbatch, which leads to a large number of problems in the terminal products in the later stage, resulting in great losses!
With the promotion and investigation of the market, it is found that many manufacturers have their own set of testing equipment, which will comprehensively control the characteristics and use of silicone masterbatch, but many companies reported that the early testing was very good, but when it came to the terminal products, a series of problems such as precipitation, white spots, and oiling often occurred, resulting in great losses. We tested nearly 50 silicone masterbatches on the market and found that there are three main problems:
1. Processing environment: The processing environment is harsh, and there are a lot of impurities and fillers in them. Some of them even have a density greater than 1. The process uses an ordinary internal mixer, and the mixing is uneven and the mixing time is not fixed, which will affect the quality of the silicone masterbatch. Unstable and uneven mixing;
2. Material selection: Nearly 85% of silicone masterbatches use silicones from small manufacturers, and the molecular weight of the siloxanes in them varies greatly. The small molecules in them are the “culprits” that precipitate on the surface of the later products;
3. Technically: Although the current silicone masterbatch formula seems to be very transparent, the selection of additives, the mixing of materials, and the proportioning are all very technical. This is the case with additives. A slight difference can lead to a huge mistake.
Based on the above three problems, how do we identify the quality of silicone masterbatches? First of all, we must understand the basic information of the supplier’s products, including whether the silicone uses an automated twin-screw extrusion process. This is very critical, which can directly control the stability of the product in the later stage. This process is very necessary: then see whether the supplier’s silicone masterbatch has passed the EU SGS environmental certification, PAHS, ROHS, REACH, NP, phthalates and other environmental certifications, which is a quality control of the product; the next is the test sample, to test whether a silicone masterbatch can achieve the performance required by oneself. If these three points are well controlled, I believe that there will be a comprehensive control of the silicone masterbatch. Another important point is whether the supplier dares to promise: whether the future supply can be guaranteed to be consistent with the tested samples, and whether it dares to seal the samples for storage. This is a very good protection for oneself, and it also tests the supplier’s confidence in the quality and stability of its silicone masterbatch!
Chongqing Baozhuan New Material Technology Co. , Ltd. is a manufacturer of stable silicone masterbatch that can be considered . HYPERLINK “https://www.additivebz.com/about-us/” It provides reliable silicone masterbatch .
