Clamshell Blog

Over half a century, plastics rapid development of industrial technology, its use has infiltrated into the industrial, agriculture and people’s lives in various fields, and with steel, lumber, cement, tied for the four pillars of the national economy materials. However, the use of plastics is followed will bring a lot of solid waste, especially plastics, such as food packaging bags, beverage bottles, such as the extensive use of agricultural films, serious pollution of the human living environment has become a worldwide public hazard. Data show that municipal solid waste in the quality of the percentage of plastic has reached over 10%, volume percentage is 30%, while most of which are daily disposable plastic packaging and waste, their impact on the environment, the ecological balance of damage has caused great concern in society. Thus, the solution to this problem has become imperative to protect the environment.

In general, the plastic apart from other thermal degradation, light degradation in the natural environment and bio-degradation rate than the slower, with Cl4 isotope trace plastics in soil degradation, results show that the degradation rate of plastic with the environmental conditions (rainfall volume, permeability, temperature, etc.) vary, but overall, the degradation rate is very slow, generally believe that 200 years ~ 400 years. To solve this problem, industry has been introduced in developed countries burial, incineration and recycling methods such as disposal of waste plastic, but there are several ways this can be overcome deficiencies. Processed for landfill covers an area of more instability and makes the landfills. When it comes to incineration, the issue of heat because of their large, easy to damage burning furnace, and the discharge of dioxin, and sometimes might also emit other harmful gases. As for recycling, it is often difficult to collect or even forced to collect for recycling, economic efficiency is poor or even no cost. Thus an increasing number of scholars to promote the development and application of degradable plastics, and will address it as an ideal way of the world problems. At present, the world’s developed countries to actively develop degradable plastics, the United States, Japan, Germany and other developed countries have drawn up to limit or ban non-degradable plastics regulations.
Degradable plastics

Degradable plastics is a kind of the performance of their products to meet the use requirements, while preserving the same period of performance, but under the conditions in their natural environment after use, can degrade into environmentally harmless substances of plastic. According to their degradation mechanism of degradable plastics into bio-degradable plastic, the light degradation of plastics and degradable plastics. The 21st century is the era of protection of the Earth’s environment, resource, energy and more intense era for the treatment of those large, decentralized, messy, difficult to collect or India to make mandatory the collection for recycling, economic efficiency is very poor or non-effectiveness of a one-time Plastic waste, not only the ecological environment caused by pollution, but also for resources and a great waste of energy. Degradable plastics can reduce the white pollution, there have been significant economic and social benefits, for efficient research and development of degradable plastics have become the plastics industry, packaging industry and environmental protection as a major development strategy, but also become the world’s attention in research and development of hot spots . At the same time, as people increased awareness of biodegradable material, as well as the continued strengthening of environmental awareness, such materials will have a very broad prospect.