Today, Huafu Chemicals will share with you the production process of melamine molding compound.
First, let’s study the reaction principle.
Melamine tableware powder is usually formulated by controlling the molar ratio of formaldehyde to triamine at about 1:2, then heating up to 80 C. After reaction, the product is a soluble prepolymer resin. The powder product will be formed into a product by cross-linking reaction through high temperature and high pressure.
Figure 1-1 Industrial production process of melamine moulding compound
Now, we will give a brief introduction to the production process.
1.Reaction: the most important step in the production process. The reaction equipment generally adopts stainless steel reactor and the reaction time must be between 90-120 minutes.
2.Kneading: The resin which is obtained by kneading is generally mixed with pulp in the kneading machine for about 60 to 80 minutes.
3.Drying: The effect of drying is to remove moisture and the granules will be dried in the dryer in 2.5 to 3 hours.
4.Ball Milling: usually carried out in the ball miller. The granules are finely ground through the shear and impact forces between the ceramic balls.
5.Screening: There are still some rough materials or impurities which can be filtered through the vibrating screen to make sure that the fineness of the product reaches the unified standard.
6.Packaging: the last step of production. There are two layers of packaging bags; the outer bag is paper bag, and the inner bag is plastic film, moisture-proof and dustproof.
Huafu Chemicals is specialized in the production of melamine moulding compound for over 20 years. Any tableware factories that are interested in Huafu melamine powder, please feel free to contact us.
Post time: Dec-24-2020