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

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.

Because starch is a biodegradable natural polymer, it is decomposed into glucose under the action of microorganisms, and then 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. nature, biological

Fully degradable lunch boxes are not perfect. For example, most of the production raw materials are food crops, and there are problems such as mildew resistance that need to be solved.

2. Degradable plastic lunch box

The raw materials for the manufacture of such disposable lunch boxes are degradable plastics. The so-called degradable plastics are the addition of a certain amount of additives, such as photosensitizers, starches and other raw materials in the production process of plastics.

In this way, the degradable lunch box 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 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 are not fundamentally up to the task of eliminating white pollution.