PBS is polybutylene succinate, which is formed by condensation of succinic acid and butanediol. It belongs to the aliphatic polyester biodegradable plastic category. There is also a copolymer of PBS and adipic acid called PBSA, which greatly improves its biodegradability. Therefore, aliphatic polyester biodegradable plastics include PBS and PBSA.

PBS is currently recognized worldwide as the best biodegradable plastic variety with comprehensive performance. The product can be completely biodegraded into carbon dioxide and water, and is a new environmentally friendly material.

The main raw materials for PBS production come from petroleum products. The production equipment can be slightly modified by modifying the existing general polyester production equipment. Currently, there is a serious overcapacity of domestic polyester equipment, and the transformation of PBS production provides new opportunities for excess polyester equipment

PBS is usually chemically synthesized using aliphatic dicarboxylic acids and diols as the main raw materials. It can also be produced through green recycling through biological fermentation pathways containing renewable crop products such as cellulose, glucose, fructose, and lactose. The processing performance of PBS is currently the best among degradable plastics, and it can be used for various molding processes in existing universal plastic processing equipment. At the same time, a large amount of inexpensive fillers such as calcium carbonate and starch can be blended with PBS to reduce costs.

Polybutylene succinate (PBS) is an excellent biodegradable material with a wide range of applications, including packaging, tableware, agricultural films, and biomedical polymer materials. Compared with degradable plastics such as polycaprolactone (PCL) and poly (3-hydroxybutyrate) (PHB), PBS has a lower price and better comprehensive performance. It can be modified and polymerized with various additives and materials, and has broad application prospects.