One of the top goals that material science strives to achieve, is that of the biodegradability of commonly used materials. The planet can only hold so much waste before ecosystems, water supplies, and its atmosphere begins to see horrific damage. For those of you who have a 3D printer, you know how much plastic waste you end up creating. While some of this waste is infact biodegradable, if you use Polylactic acid (PLA) for printing, other materials used are not.
Polylactic acid is derived from renewable resources such as tapioca, sugarcane and corn starch. While it is biodegradable, many recycling plants also recyle it by breaking it down to monomer through processes known as thermal depolymerization or hydrolysis. This monomer can then be used to create new PLA, with properties that are identical to the original. Unfortunately though, PLA isn’t the only material used when producing plastics. Even within the consumer level 3D printing space, many people prefer ABS over PLA due to its strength, flexibility and high temperature resistance.
So what happens in a decade from now, when 3D printers become more prevalent, and the technology is used to create more parts with a greater selection of plastic materials to choose from? Will the world’s plastic waste problem only get worse? Without a doubt, this will be the case unless someone, somewhere, can come up with a method for creating a greater diversity of biodegradable materials.
There may be a solution! Researchers at the Italian Institute of Technology, Ilker S. Bayer, Susana Guzman-Puyol, José Alejandro Heredia-Guerrero, Luca Ceseracciu, Francesca Pignatelli, Roberta Ruffilli, Roberto Cingolani, and Athanassia Athanassiou have come up with a way of transforming edible vegetable waste into bioplastic. Their findings, which appear in the ACS journal, Macromolecules, provide details on the process of creating bioplastics by using waste from vegetables such as spinach, rice, parsley, and cocoa, rather than the traditional methods of using petroleum, which can be very harmful to the environment.
In 2012 alone, plastic production reached 288 millions tons worldwide; the majority of which are toxic to the environment, and take centuries, or even thousands of years to completely break down.
By using an organic, naturally occurring acid (TFA), the researchers were able to process cellulose, which is the main building block of plants. They mixed this TFA acid with vegetables such as spinach, rice, etc., and then poured this mixture into pretri dishes. They discovered that after some time, films had formed, which featured a varying amount of physical traits. Some were brittle and rigid, while others were soft and stretchable. Most interesting though, was that they were very similar to commercially available plastics.
“This opens up possibilities for replacing some of the non-degrading polymers with the present bioplastics obtained from agro-waste,” the researchers wrote.
With the increasing use of 3D printing, both on a consumer level and industrial level, the potential for more product waste will only grow larger. Even though 3D printing reduces waste that is seen in typical manufacturing, these products that are created with the technology ultimately will end up in a landfill. If researchers can find a way to derive plastics from renewable resources such as vegetables, and then implement them into 3D printing processes such as selective laser sintering or fused deposition modeling, the future may not be all doom and gloom after all.
What do you think? Will we one day have a greater variety of 3D printing materials to choose from which are completely biodegradable? Discuss in the Vegetable derived plastic forum thread on 3DPB.com.[Source: ACS Publications]
You May Also Like
3D Printing a Teleprompter at Home, Powered by Raspberry Pi
Raspberry Pis are brilliant, an opinion with which I’m sure most of readers would agree. The number of things you can do with them is limitless, from running one as...
Ancient Cephalopods Swam Vertically, 3D Printed Replicas Reveal
There are multiple examples of 3D printing, 3D scanning, and other related technologies being used to help shed light on, and answer questions about, creatures that walked this planet long...
3D Printing News Briefs, July 22, 2021: XJet, TPM & Duncan Parnell, Seurat, FedDev Ontario & University of Waterloo, Tata Technologies & Stratasys, US Marine Corps, Nexa3D, INTAMSYS, Shell, ORNL & Local Motors
We’re sharing plenty of business news with you today in this edition of 3D Printing News Briefs, starting with two new executive appointments at XJet and TPM’s acquisition of Duncan...
Ulendo Receives $250K NSF Grant for 3D Printing Calibration Software
One of the common challenges with fused filament 3D printers is vibration. Running printers at high speeds often leads to excessive vibrations, which can generate low-quality prints with surface defects,...
View our broad assortment of in house and third party products.