What are the main components of the degradable disposable lunch box?

What is a degradable lunch box?

Degradable lunch box refers to a lunch box that can undergo biochemical reactions under the action of natural microorganisms (bacteria, molds, algae) enzymes, causing mildew in appearance to change in internal quality, and finally forms carbon dioxide and water. The whole degradation process can be decomposed into harmless substances without manual participation, which is a very long process. In addition to meeting the degradation performance of GB18006.3-2020 "General Technical Requirements for Disposable Degradable Tableware", the finished waste of degradable lunch boxes should also have recycling value, be convenient for recycling, or be convenient for sanitary landfill and high-temperature composting. .

What are the main components of the degradable disposable lunch box?

There are two types of materials used in degradable lunch boxes: one is made of natural materials, such as paper products, straw, starch, etc., which are degradable and are also called environmentally friendly products; the other is plastic as the main component, adding starch , photosensitizers and other substances.

1. Degradable natural material lunch box

Disposable degradable lunch boxes made of natural materials are also called biodegradable lunch boxes. Biodegradable lunch box is a relatively advanced environmental protection product. It uses starch as the main raw material, adds one-year-growing plant fiber powder and special additives, and is processed by chemical and physical methods to make a biodegradable fast food box. Since starch is a biodegradable natural polymer, it is decomposed into glucose under the action of microorganisms, and finally decomposed into water and carbon dioxide. In addition, the material blended with it is also a fully degradable material, so it can be said that it has no impact on the environment. The main source of raw starch production can be corn, potatoes, sweet potatoes, cassava and other annual growing plants. Naturally, biodegradable lunch boxes are not perfect. For example, most of the raw materials for production are food crops, and there are problems such as mildew resistance that need to be solved.

2. Degradable plastic lunch box

The raw materials of such disposable lunch boxes are degradable plastics. The so-called degradable plastics are a certain amount of additives, such as photosensitizers, starches and other raw materials added in the production process of plastics. In this way, the degradable plastic product can be broken down into pieces after being used up and discarded and exposed to nature for three months, thereby improving the environment at least visually. But the biggest flaw of this technology is that these fragments can't continue to degrade, but just change from large pieces to small pieces of plastic, which cannot fundamentally be up to the task of eliminating white pollution.

Now the country is promoting environmental protection, and takeaway merchants are gradually replacing ordinary disposable lunch boxes with degradable tableware to reduce takeaway pollution. So what are degradable lunch boxes? What are the main components of the degradable disposable lunch box? Degradable disposable lunch boxes refer to tableware that can eventually be degraded into carbon dioxide and water. One of the materials of degradable lunch boxes is made of natural materials; become.

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