Present mainly countries produce biodegradable plastic are America, Japan, German, Italy, Canada and Israel and other countries. The kinds of biodegradable plastic are photo-degradable, photo-degradable and biodegradable, broken biodegradable and completely biodegradable and other types.
Biodegradable plastic means that plastic can be degraded by germ in soil. It uses bacteria and its hydrolytic enzyme to make materials be degraded into CO2, water, honeycomb porous materials and salt and then it can be completely degraded by germ action, final it can enter into biological cycle. It is hot point every country are researching and developing. So, biodegradable plastic normally means that a kind of new type of plastic which has mechanical strength and can be degraded by natural germ (bacteria, mycete and algae) and can do no harm to environment.
About biodegradable materials, there are many kinds of products developed. Firstly, degradable resin and master batch including biodegradable resin, photo-degradable and biodegradable master batch and complex degradable master batch and so on. Secondly, degradable products including compostable bags, biodegradable garbage bags, biodegradable shopping bags, mulching film and tableware and so on. Thirdly, normal plastic products including shopping bags, trash bags and so on.
Our country biodegradable plastic mainly application in agriculture, food packaging and so on.
In a word, the most prominent advantage of biodegradable plastic is that it can be degraded and do no harm for environment.