Disposable fast food boxes have been changed from foam lunch boxes to environmentally friendly lunch boxes. The original foam lunch boxes are not resistant to high temperatures and the production process causes damage to the environment and are eliminated. Plastic lunch boxes, paper lunch boxes, wooden lunch boxes, and degradable lunch boxes are available. and many more. Among them, plastic has the characteristics of low toxicity, high melting point, strong plasticity, easy production and relatively low cost, so it has become the mainstream material for manufacturing disposable fast food boxes.
With the continuous improvement of our people’s living standards and the acceleration of the pace of life, more and more people eat fast food, so fast food tableware such as disposable plastic lunch boxes, bowls, plates, etc. are also used more and more every year. The quantity is more than 10 billion. The main raw material for making these tableware is polystyrene (PS) resin, etc., with the development of the plastic industry and the continuous improvement of anti-aging technology, these polymer materials have become stronger and stronger, which has brought production and application Great benefit.
Disposable tableware can no longer be used as tableware, and there are many difficulties in recycling, such as economic benefits caused by recycling, recycling technology problems, etc., so the recovery rate is very low, especially expanded polystyrene tableware . This caused a lot of plastic tableware to float in every corner, especially along the railway, tourist attractions and garbage dumps. These high-molecular polymers are not sensitive to light, heat and natural forces. At the same time, there is no microorganism or enzyme that can directly decompose them. Therefore, it is quite difficult to decompose and disappear in nature. In this way, discarded plastic tableware in the environment will Increasing day by day, it will have a certain impact on the living environment of mankind, especially on animals and plants, water and soil and natural landscape. Some developed countries and regions have enacted legislation or formulated policies to prohibit or restrict the use of non-degradable and hard-to-recycle disposable plastic products.
Many cities have banned the sale of disposable foamed plastic tableware and replaced it with cardboard, pulp or degradable plastic tableware. However, due to inadequate policy formulation, insufficient law enforcement, or too many problems with new products, most of them are banned. Resurgence. Based on this phenomenon, the environmental protection departments of Beijing and Tianjin believe that after many investigations and demonstrations, recycling treatment methods are the best choice to solve the environmental pollution of foam tableware when new products are not yet mature.