Researchers at UNSW have shown how 3D printed items treated with a trithiocarbonate, such as this violin, can self-heal when placed under UV light
Research by UNSW academics shows that special treatment of liquid resin used in 3D printing can cause the material to mend itself if it becomes damaged
UNSW engineers have demonstrated a way to help 3D printed plastic heal itself at room temperature using only lights.
Professor Cyrille Boyer and his team, Dr Nathaniel Corrigan and Mr Michael Zhang, in the UNSW School of Chemical Engineering have shown that the addition of “special powder” to the liquid resin used in the printing process can later assist with making quick and easy repairs should the material break.
This can be done very simply by shining standard LED lights on the printed plastic for around one hour which causes a chemical reaction and fusion of the two broken pieces.
The entire process actually makes the repaired plastic even stronger than it was before it was damaged, and it is hoped that further development and commercialisation of the technique will help to reduce chemical waste in the future.
That is because broken plastic parts would not need to be discarded, or even recycled, and could be mended simply even when remaining embedded in a component including many other materials.
The results of the team’s research have now been published in the journal Angewandte Chemie International Edition.
Reducing plastic waste
“In many places where you use a polymer material, you can use this technology. So, if a component fails, you can repair the material without having to throw it away,” said Dr Corrigan.
“There is an obvious environmental benefit because you’re not having to re-synthesize a brand-new material every time it gets broken. We are increasing the lifespan of these materials, which is going to reduce plastic waste.”
The powdered additive the UNSW team use is a trithiocarbonate, known as a reversible addition fragmentation chain transfer (RAFT) agent which was originally developed by CSIRO. The RAFT agent enables rearrangement of the nanoscopic network of elements that make up the material and allows the broken pieces to be fused.
This occurs within approximately 30 minutes when UV LED lights are shone directly onto the broken plastic, with full healing taking place after roughly one hour.
Original Article: Self-healing 3D printed plastic can repair itself… using only light
More from: University of New South Wales
The Latest on: 3D printed self-healing plastic
- 3D-Printed Rockets Set To Blast Offon June 30, 2022 at 9:32 am
If this summer's Terran1 launch from Cape Canaveral is a success, Relativity Space will be the first aerospace manufacturing company to send an entirely 3D-printed rocket into space.
- Robots Now Have Living Self-Healing “Skin”on June 28, 2022 at 3:00 am
According to a recent Medgadget article, the latest human-like feature for robots is living “skin.” Developed at the University of Tokyo, the living coating for robotic parts is flexible enough to ...
- Get the lowest price on 3D printer resin to fill up your machine with these dealson June 27, 2022 at 9:28 am
It's not the only 3D printer resin deal going at the moment either. A full 1kg of Anycubic's SLA UV-Curing Resin in gray is now 20% at Amazon (opens in new tab), bringing the tota ...
- Development of Application-Specific Grades of 3D Printing Plastics to Drive the Marketon June 24, 2022 at 1:30 pm
Initiatives are undertaken by governments of different countries to support the adoption of 3D printing technologies in various industries. 3D printing is being used in a wide ran ...
- Best 3D Printer Of 2022: Sermoon V1 Pro 3D Printeron June 23, 2022 at 7:47 am
One of the most innovative technological developments in the last decade, the 3D printer has changed how people use ... This is also the reason behind its ability to easily print using ABS plastic. As ...
- 3D-Printed Eardrum Graft in Commercial Developmenton June 21, 2022 at 5:00 pm
Its 3D-printed structure mimics the structure of a normal eardrum and stimulates the tissue’s self-healing properties, as demonstrated in animal models. The research team believes the PhonoGraft ...
- Right to re-print: What role could 3D printing have in right to repair?on June 21, 2022 at 7:59 am
Laura Griffiths speaks to Ricoh 3D, Photocentric, Repair Cafe and more about the potential for additive manufacturing in right to repair schemes.
- Desktop Metal to unveil 3D-printed heat-activated foam for cars, shoeson June 20, 2022 at 10:59 pm
Desktop Metal Inc plans to unveil a type of foam that the U.S.-based industrial 3D printer maker claims could significantly change the way athletic shoes, automotive seats and other products are ...
- Upcycled ABS better for 3D printing than standard ABSon June 19, 2022 at 5:00 pm
Researchers at the US Department of Energy’s Oak Ridge National Laboratory (ORNL) have developed an upcycling approach that adds value to discarded plastics for reuse in additive manufacturing, or 3D ...
- Scientists Used Human Cells to Make Self-Healing ‘Living Skin’ for Robotson June 13, 2022 at 8:54 pm
Today’s robots, even if humanoid in form, tend to feature rigid parts and hard plastic or metal exteriors ... and was also both water-repellent and self-healing. “Our creation is not only soft like ...
via Bing News
The Latest on: 3D printed self-healing plastic
via Google News