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Performance and production of HDPE Plastic Bottle

The characteristics of HDPE bottles mainly depend on the raw material. HDPE is a highly crystalline, non-polar thermoplastic resin. The properties of the various grades of HDPE are the appropriate combination of four fundamental variables: density, molecular weight, molecular weight distribution and additives. Different catalysts are used to produce polymers with tailored special properties. These variables combine to produce HDPE grades for different uses; a balance of properties is achieved.

HDPE bottle The melting point of HDPE raw material is about 130 degrees, and the relative density is 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, good resistance to environmental stress cracking, melting temperature 220-260 degrees, for materials with larger molecules, the recommended melting temperature range is between 200-250 degrees.

HDPE plastic bottle is a bottle made of high-density polyethylene plastic, which has good chemical resistance. The production process includes material selection, bottle design, injection molding, bottle sealing and other links.

First, choose the right HDPE material. HDPE material has excellent physical and mechanical properties, chemical stability and heat resistance, and is suitable for most chemical raw materials and pharmaceutical raw materials containing Cordyceps. Manufacturers need to select the appropriate HDPE material based on the required strength, corrosion resistance and pressure performance of the bottle.

Next, design the shape, size and capacity of the bottle. When producing HDPE plastic bottles, the shape and size of the bottle are usually composed of three parts: the bottom of the bottle, the body of the bottle, and the mouth of the bottle. HDPE Bottle can be made in various shapes and sizes such as round, square or oval. Manufacturers can produce plastic bottles of various capacities according to customer requirements, such as 50ml, 100ml, 500ml, 1000ml and other different capacities.

Injection molding is the main link in the production of plastic bottles. Manufacturers need to heat the HDPE material at high temperature, and then inject the molten material into the bottle mold. In the injection molding process, pressure and temperature are the key factors to determine the quality of plastic bottles. By controlling the temperature and pressure, the size, shape and thickness of the bottle are guaranteed to be consistent, thereby improving the quality and stability of the bottle.

Bottling and sealing are the final steps in the production of HDPE plastic bottles. Before bottling and sealing, plastic bottles are strictly inspected to ensure that there are no defects. Bottling and closing require established processes to ensure the quality of plastic bottles and reduce product contamination.

In short, the production of Plastic Bottle requires material selection, bottle shape design, injection molding, bottle sealing and other links. Manufacturers can produce stable, high-quality, and accurate-sized HDPE plastic bottles by mastering the technologies and processes of these links. In the future, with the advancement of production technology and the increase of demand, HDPE plastic bottle production will become an increasingly important industry.