The Fraunhofer ipk team developed the injection molding tool to replicate prototype parts made from polyhydroxybutyrate. Source: Fraunhofer Gesellschaft
A new type of plastics similar to polypropylene
In this method of producing plastics, microorganisms synthesize the entire polymer in a biotechnology process. To do this, were converting biological residues such as waste fat into polyester that can be put into technology, Hein said. The researchers and his team chose microbes genetically modified by molecular methods as biocatalysts. With the help of chemical purification processes and widely optimized materials, they have been able to develop a new range of materials to meet the needs of technical plastics.
This new process not only completely abandons petroleum based synthetic ingredients, but also realizes green plastic substitution. Naturally occurring microorganisms can decompose these newly developed plastics, so they do not need to be affected by the special conditions of degradation materials in industrial composting plants. They provide an eco-friendly alternative to the manufacture and degradation of disposable products and other disposable items.
The process is also suitable for the production of high-quality plastic parts for some technical applications and service life. This kind of product has higher specification requirements. They may have to show specific geometric tolerances and surface quality, or be highly reproducible. Researchers have developed highly specialized replication processes to meet these requirements.