Now, everyone in the society knows the pollution of plastic products to the natural environment, but not everyone knows the harm of white pollution. Due to the habit of using plastic products, non degradable plastic products are still widely used in the market. So where should we start to solve environmental pollution? To solve environmental pollution, we should start with degradable materials.
Now, plastic products are everywhere, and people are beginning to adapt to them. It is impossible to remove them completely, but we can make them disappear in other ways, that is, turn them into degradable products. Only in this way can they disappear completely, do not bring any trouble to the people's life, and can not fundamentally solve the problem. Therefore, the solution to environmental pollution still depends on the complete degradation of plastics.
On the basis of PLA / PBAT, another biodegradable material PBAT is connected with PLA by chemical grafting method, which can effectively improve the flexibility and tensile properties of PLA, so that PLA can be better applied to PLA.
The modified polymer can be completely biodegradable, has good biocompatibility and biodegradability, is harmless to human body, has water permeability similar to polyester, is similar to polystyrene, and has similar luster, transparency and processing properties.
Degradable materials mainly include biodegradable materials, photodegradable materials, etc.
Biodegradable plastics are a kind of biodegradable plastics composed of bio polyester, bio cellulose, polysaccharides and poly amino acids. They can be completely degraded by natural microorganisms. Mainly polylactic acid, starch, plastic, etc.
It should be pointed out that the vast majority of starch plastics currently produced in society are filled starch plastics, that is, a certain proportion of starch is added to non biodegradable polymer materials. Due to the biodegradation of starch, the overall physical properties of the whole material collapse and a large number of end groups are exposed to oxidative degradation, but PE and PVC cannot degrade after "disintegration", It has been residual in the soil. Of course, it will cause pollution over time, so this kind of products should be listed as eliminated.
Photocatalytic degradation of biodegradable materials is an advanced technology. It is not easy to degrade under insufficient or no light, or the light intensity decreases sharply; It is also an advanced technology, which makes our life further. It can not change the original concept, but better protect our home.
