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With the increasingly strict global plastic restriction and plastic ban regulations, the use of single-use plastic products has been greatly restricted
.
01.
Features of PBS
Features of PBS Features of PBS
Polybutylene succinate (PBS) is an aliphatic polyester biodegradable plastic that is completely biodegradable, has good heat resistance and mechanical processing properties and excellent biocompatibility, and is compatible with traditional polypropylene.
It has similar properties, and its function can be regulated by molecular chain structure design.
It is a kind of biodegradable polymer material with great development potential, and its completely degraded product is non-toxic and harmless to the environment, and is suitable for practical applications and environmental protection.
are of great significance
.
02.
Research status of PBS
The research status of PBSThe research status of PBS
what is it?
As an important biodegradable polymer, polybutylene succinate (PBS) is composed of aliphatic diol 1,4-butanediol (BDO) and aliphatic diacid 1,4-butanediol.
Diacid (SA) is obtained by polycondensation and is a new polymer material that can be completely biodegraded
.
Chemical Structure:
Who is doing it?
The synthesis of PBS and other aliphatic copolyesters was initiated by Carothers et al.
in 1931.
However, due to the limitations of the technical conditions at that time, the molecular weight of the synthesized PBS was less than 5000 and the mechanical properties were general, so it did not receive corresponding attention.
.
03.
Research progress of PetroChina PBS
Research progress of PetroChina PBS Research progress of PetroChina PBS
China Petroleum and Petrochemical Research Institute has started the research and development of PBS biodegradable materials since the beginning of 2021.
On the basis of completing the research on the new direct esterification and continuous polycondensation composite catalytic system, the research and development of biodegradable materials will be carried out on the self-designed and developed polycondensation evaluation device.
The esterification-polycondensation polymerization process has been solved, and the low-melting index PBS biodegradable material product has been successfully synthesized.
The main product indicators can be compared with similar foreign products
.
It can be seen from the electron microscope results that the PBS product developed by the Petrochemical Institute has an anisotropic curly structure and exhibits good tear resistance
.
The polarized scanning mirror results of PBS show that the product has the characteristics of high nucleation density, small grain size, and high thermal deformation temperature
.
Petrochemical Institute accelerates the layout of new material research and development
Petrochemical Institute accelerates the layout of new material research and developmentOn May 18, 2021, the Institute of New Materials of the Petrochemical Institute was officially established, focusing on high-end chemical materials required by emerging strategic industries such as electronic information, new energy, health and environmental protection, and high-end equipment manufacturing, to create high-end polyolefins, biodegradable materials, For the three industrial chains of engineering plastics, related research work has been fully launched
.
