Degradable packaging bags mean that they can be degraded, but degradation can be divided into "degradable" and "fully degradable".
Partial degradation refers to the addition of certain additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.) during the production process to make it stable
After falling, it is easier to degrade plastics in the natural environment.
Total degradation means that all plastic products degrade into water and carbon dioxide. The main raw material of this fully degradable material is processed into lactic acid (corn, cassava, etc.), which is
PLA. Polylactic acid (PLA) is a new type of bio-based and renewable biodegradable material. Starch raw material is saccharified to obtain glucose, which is then fermented by glucose and certain strains.
It is converted into high-purity lactic acid, and then a certain molecular weight polylactic acid is synthesized by chemical synthesis method. It has good biodegradability and can be used by microorganisms in the natural world.
It is completely degraded under certain conditions and finally produces carbon dioxide and water without polluting the environment. This is very beneficial to the protection of the environment and is recognized as an environmentally friendly material. Currently fully degradable packaging bags
The main bio-based material is composed of PLA+PBAT, which can be completely decomposed into water and carbon dioxide in 3-6 months under the condition of composting (60-70 degrees), which does not pollute the environment.
Why add PBAT Shenzhen Jiuxinda here to tell you that PBAT is a copolymer of dicarboxylic acid, 1,4-butanediol, and terephthalic acid. It is a kind of fully biodegradable.
A chemically synthesized aliphatic aromatic polymer, PBAT has excellent flexibility and can be used for film extrusion, blowing processing, extrusion coating and other molding processing. PLA and PBAT
The purpose of mixing is to improve PLA's toughness, biodegradation and molding processability. PLA and PBAT are incompatible, so choosing a suitable compatibilizer can make the performance of PLA significant improve.
Post time: Sep-03-2021