What are the main ingredients of disposable degradable lunch boxes
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There are two kinds of materials used for degradable lunch boxes: one is made of natural materials, such as bagasse, bamboo residue, straw, starch, etc., which are degradable, also known as environmental protection products; The other is made of plastic with starch, photosensitizer and other materials.
1. Dining box made of degradable natural materials Disposable degradable lunch boxes made of natural materials are also called biodegradable lunch boxes. Biodegradable lunch box is an advanced environmental protection product. It takes starch as the main raw material, adds one-year growth period plant fiber powder and special additives, and is processed by chemical and physical methods to make a biodegradable snack box. As starch is a biodegradable natural polymer, it is decomposed into glucose under the action of microorganisms, and finally 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 material starch can be corn, potato, sweet potato, cassava and other one-year 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 prevention that need to be solved.
2. Degradable plastic lunch box The raw materials for making such disposable lunch boxes are degradable plastics. The so-called degradable plastics refer to the addition of a certain amount of additives, such as photosensitizers, starch and other raw materials, in the production process of plastics. In this way, degradable plastic products can be decomposed into fragments from complete shape after being used and abandoned in nature for three months, thus improving the environment visually at least. However, the biggest disadvantage of this technology is that these fragments cannot continue to degrade. They just change from large pieces to small pieces of plastic, which is not fundamentally competent for the task of eliminating white pollution.