The 20L Bucket Mould is one of the products with common […]
The 20L Bucket Mould is one of the products with common specifications that we produce. Here we introduce its common raw materials. The main raw material for the production of plastic barrels is polyethylene, or PE for short, which is a high molecular organic compound made by addition polymerization of ethylene. Polyethylene is recognized as the best material in contact with food in the world. It is non-toxic, tasteless and odorless, and meets food packaging hygiene standards. Polyethylene film, light and transparent, has the properties of moisture resistance, oxygen resistance, acid resistance, alkali resistance, general air tightness, and excellent heat sealability. It is known as the "flower of plastic" and is the most important and most important part of plastic packaging printing. material.
High-density polyethylene, referred to as HDPE. The density is 0.941～0.965g/cm3. It is polymerized by low pressure, so it is also called low pressure polyethylene. Milky white. It can be processed by blow molding method and T die extrusion process. It is heat-resistant and steam-boiled, cold-resistant and freeze-resistant, has good moisture-proof, gas-proof and insulating properties, and is not easy to be damaged. Its strength is twice that of LDPE. After selecting the materials, it is necessary to process barrels. The main steps are as follows: raw material preparation, blow molding, injection molding, demolding and trimming, waste crushing, drying, assembly, final inspection and storage.