How biodegradable film blow moulding machine works and its advantages and disadvantages

What is a biodegradable film blow moulding machine

Biodegradable film blow moulding machines are suitable for the production of plastic films using biodegradable materials such as corn starch, PLA and PBAT. These machines are usually equipped with an electronic length gauge and cumulative time meter to ensure efficient and accurate output. High output single layer biodegradable film machines offer a good solution for general packaging and produce high quality film.

What is the working principle of a film blow moulding machine?

The main task of a biodegradable film blow moulding machine is to process biodegradable plastics (e.g. PLA, PBAT) into film. Its working process mainly includes the following steps:

1. Preparation and melting of raw materials: Degradable plastic granules are put into the hopper, and then the plastic granules are transformed into a uniform melt by extrusion and heating of the screw.

2. Film formation: The molten plastic passes through the die head to form a ring-shaped molten tube, after which air is injected into the centre of the tube to expand it into a film.

3. Cooling and winding: The film is rapidly cooled by means of a water bath or air cooling to ensure its stability, and finally rolled into film rolls for subsequent use.

This method of production is not only highly efficient, but also allows for different thicknesses and widths of finished film to be realised by adjusting the process parameters.

What are the advantages and disadvantages of biodegradable films?

Advantages

1. Environmentally friendly: biodegradable films can decompose under natural conditions, reducing long-term pollution of the environment.

2. Waste Reduction: The use of biodegradable materials reduces the amount of plastic waste and eases the ecological burden.

3. Resource saving: Many biodegradable films are made from renewable resources (e.g. starch or PLA, etc.), which helps to save fossil resources.

4. In line with the goal of sustainable development: the use of biodegradable materials meets the needs of modern society for sustainable development and promotes circular economy.

Disadvantages

1. Cost: The production cost of biodegradable films is usually higher than that of traditional plastics, which may lead to lower market acceptance.

2. Performance limitations: In some application scenarios, the physical properties (e.g. strength, moisture resistance) of degradable films may not be as good as those of traditional plastics.

3. Decomposition conditions: Although degradable films can decompose under certain conditions, they do not always degrade quickly in the environment and may require specific treatment facilities.

Mixed recycling issues: degradable materials are prone to contamination when mixed with traditional plastics, making the recycling process complex.

Future Outlook

With the consumer market's increasing demand for sustainable development, it is expected that biodegradable film blow moulding machines will usher in greater market demand. Continuous progress in technology will enable further improvement in the nature of degradable materials, reduce production costs and enhance product performance. At the same time, policy support and increased consumer awareness will also promote the rapid development of this industry.

Conclusion

Biodegradable film blow moulding machine is not only a product of the transformation of modern plastics industry, but also an important tool for us to achieve a green life. By promoting the use of biodegradable materials, we can reduce environmental pollution while promoting sustainable economic development. For enterprises and consumers, this is not only a necessity for survival, but also a responsibility and commitment to the future. As long as we work together, biodegradable films will certainly play an important role in the plastics revolution.

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