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Biodegradable plastics made from sugar and carbon dioxide - polycarbonate

by:Cailong     2019-08-01
Biodegradable plastics made from sugar and carbon dioxide  -  polycarbonate
The process currently used to manufacture polycarbonate is the use of BPA (banned in baby bottles) and highly toxic photogas, which was used as a chemical weapon in World War I.
Scientists have developed
The use of sugar and carbon dioxide to make cost-biodegradable plastics may mean the end of unsustainable products that hinder the environment.
For the manufacture of beverage bottles, glasses lenses and scratches-
Coating resistance for mobile phones, cd and dvd.
The process currently used to manufacture polycarbonate is the use of BPA (banned in baby bottles) and highly toxic photogas, which was used as a chemical weapon in World War I.
Scientists at the University of Bath in the UK have made alternative polyester with sugar and carbon dioxide in a new process that also uses low pressure and room temperature, making production costs lower and safer.
Using enzymes from soil bacteria, these carbonated fats can be biodegradable back to carbon dioxide and sugar.
This new type of plastic is bio-plastic.
The researchers said the material could be used in the future for medical implants, as well as a stent for growth transplant replacement organs.
Carbonated fats from sugar provide a more sustainable alternative to carbonated fats in traditional BPA, but this process uses a highly toxic chemical called photogas.
Scientists have developed a safer, more sustainable alternative to adding carbon dioxide to sugar at low pressure and at room temperature.
The resulting plastic has physical properties similar to that of petrochemical products, strong, transparent and scratchedresistant.
The key difference is that they can degrade carbon dioxide and sugar using enzymes found in soil bacteria. The new BPA-
Free plastic may replace the current polyester in items such as baby bottles and food containers as plastic is bio
It can also be used for medical implants or as a scaffold for growing tissues or organ transplants. "With an ever-
As the population grows, there is a growing demand for plastics.
This new plastic is a renewable alternative to fossils.
"Fuel-based polymers may be cheap, and because it is biodegradable, it will not lead to growth in marine and landfill sites," said Antoine Bouchard of the university's chemistry department . ".
"Our process uses carbon dioxide, not highly toxic chemical photogas, to produce plastics that do not contain BPA, so the plastic is not only safer, but also cleaner in the manufacturing process," Bouchard said.
The researchers used nature as an inspiration for the process, using a sugar found in the DNA called Cortin as a building block to create a new polycarbonate plastic with great potential.
Thymidine is one of the units that make up DNA.
Because it already exists in the body, this means that this plastic will be Biological
"Compatible and can be safely used for organizing engineering applications," said Georgina Gregory, PhD student at Bath . ".
"The performance of this new plastic can be very good --
Adjust by adjusting the chemical structure
For example, we can make the plastic positively charged so that the cells can stick to it and make it a scaffold for tissue engineering . "
The study was published in the Journal of Polymer Chemistry and large molecules.
(This article has not been edited by the DNA editing team and is automatically edited
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