Classification of degradable plastics:
Environmentally degradable plastics are a new class of plastics. The development of environmentally degradable plastics in foreign countries began in the 1970s, when light-degradable plastics were mainly developed to solve the environmental pollution problems caused by plastic waste, especially disposable plastic packaging products. By the 1980s, development research turned to biodegradable plastics, and biodegradable plastics produced from renewable materials such as plant starch and cellulose, animal chitin, and the like were also used. In addition, biodegradable plastics produced by microbial fermentation have also been developed. A class of medical plastics that have been clinically useful for biodegradation, such as polylactic acid, has also attracted people's attention. It is hoped that it can be used to solve the environmental pollution problem of plastics. However, whether such plastics are classified as environmentally degradable plastics There are different opinions, the opinion of the Japan Society for Degradable Plastics is that it cannot be classified as environmentally degradable plastics. However, from the point of view of degradable plastics as a new type of plastics, it should also include biodegradable plastics. It is also possible to classify degradable plastics from environmental (natural) degradable plastics and bio- (environmentally) degradable plastics. The latter has been used medically for surgical sutures, artificial bones, and the like.
The development and research of degradable plastics in China is basically in sync with the world. However, the research and development of China's degradable plastics began with agricultural mulch. China is a large agricultural country, and the consumption of mulch film ranks first in the world. In order to solve the harm caused by the residual mulch accumulated in farmland on the development of plant roots and affect crop yield, and the residual film hinders the operation of agricultural machinery, in the 1970s, The development of photodegradable plastic mulch was started. Before and after 1990, biodegradable plastics filled with starch in general plastics appeared. At the same time, on the basis of photodegradable plastics, the mulch film with both photodegradation and biodegradation functions simultaneously filled with starch was developed. . At present, various types of degradable mulch films are under development and are still in the stage of application demonstration and promotion. In recent years, with the improvement of the living standards of the Chinese people, the environmental pollution problems caused by disposable plastic packaging products have become increasingly serious. For this reason, it is also actively developing degradable plastic products, such as garbage bags, for packaging, mainly disposable packaging. Shopping bags, etc.
Jiuzhi Plastics Network
Environmentally degradable plastics are a new class of plastics. The development of environmentally degradable plastics in foreign countries began in the 1970s, when light-degradable plastics were mainly developed to solve the environmental pollution problems caused by plastic waste, especially disposable plastic packaging products. By the 1980s, development research turned to biodegradable plastics, and biodegradable plastics produced from renewable materials such as plant starch and cellulose, animal chitin, and the like were also used. In addition, biodegradable plastics produced by microbial fermentation have also been developed. A class of medical plastics that have been clinically useful for biodegradation, such as polylactic acid, has also attracted people's attention. It is hoped that it can be used to solve the environmental pollution problem of plastics. However, whether such plastics are classified as environmentally degradable plastics There are different opinions, the opinion of the Japan Society for Degradable Plastics is that it cannot be classified as environmentally degradable plastics. However, from the point of view of degradable plastics as a new type of plastics, it should also include biodegradable plastics. It is also possible to classify degradable plastics from environmental (natural) degradable plastics and bio- (environmentally) degradable plastics. The latter has been used medically for surgical sutures, artificial bones, and the like.
The development and research of degradable plastics in China is basically in sync with the world. However, the research and development of China's degradable plastics began with agricultural mulch. China is a large agricultural country, and the consumption of mulch film ranks first in the world. In order to solve the harm caused by the residual mulch accumulated in farmland on the development of plant roots and affect crop yield, and the residual film hinders the operation of agricultural machinery, in the 1970s, The development of photodegradable plastic mulch was started. Before and after 1990, biodegradable plastics filled with starch in general plastics appeared. At the same time, on the basis of photodegradable plastics, the mulch film with both photodegradation and biodegradation functions simultaneously filled with starch was developed. . At present, various types of degradable mulch films are under development and are still in the stage of application demonstration and promotion. In recent years, with the improvement of the living standards of the Chinese people, the environmental pollution problems caused by disposable plastic packaging products have become increasingly serious. For this reason, it is also actively developing degradable plastic products, such as garbage bags, for packaging, mainly disposable packaging. Shopping bags, etc.
Jiuzhi Plastics Network
Led Wall Lamps,Led Fan Bulb,Foldable Fan Bulb,Mosquito Killer Lamp
Jiangmen Duramp Electric Co., Ltd , https://www.durampled.com