breakthrough! 3D nano-ink breaks the bottleneck
After plasma etching the polymer, electron microscopy shows the alignment of the nanomaterials in the 3D printing direction.
3D printed “dog bone-shaped” nanocomposite tensile test sample.
A new 3D printable polymer nanocomposite ink has incredible properties and finds widespread use in aerospace, medicine and electronics.
Mechanical engineering researchers at Michigan Technological University in the United States have invented a method to use carbon nanotubes (CNTs) to make 3D printing nanocomposite polymer ink, which is expected to replace traditional epoxy resin.
Engineer Parisa Pour Shahid Saeed Abadi and graduate student Masoud Kasrae, who study the interface of materials, mechanics and medicine, recently published an article in the journal Additive Manufacturing and noted that this material has great promise beyond the scientific scope of nanocomposite ink.
The conductivity of the new nanomaterial ink makes it possible to print epoxies that double as wires — whether on circuit boards, aircraft wings, or in 3D printed drivers used to guide vascular catheters. Another useful property of nanocomposite polymer ink is its strength. "Compared to steel and aluminum, we found that epoxy composites with the same strength can reduce weight by 80%," Kasrae said.
Additionally, in the medical, aerospace and electronics industries, where defects and damage can cause serious trouble, nanocomposites can serve safety functions. "When something breaks, a tiny crack starts from a tiny defect and grows to destroy the entire structure," Abadi said. "Nanocomposites can bridge those cracks without allowing them to grow. This is one of the mechanisms by which carbon nanotubes increase the mechanical strength of materials."
In the future, polymer nanocomposite inks are expected to replace traditional epoxy resins. Performance, weight ratio, conductivity, increased strength and ease of use are just a few of the reasons, the authors say.
On August 23, the Jinan Private Economic Development Bureau and China Economic Weekly jointly launched the theme publicity activity of "Central Media Look at Jinan - Entering Jinan's Private Economy" in Yinfeng Biotechnology Park.
Led by Anhui Medical University and participated by Yinfeng Cryogenic Medical Technology Co., Ltd., the "Engineering Research Center for Life Resources Conservation and Artificial Organs of the Ministry of Education" was officially accepted and awarded by the Ministry of Education. As one of the four major platforms for the transformation of the center's project, Yinfeng Cryogenic Co., Ltd. is responsible for the "development, promotion and application of cryogenic preservation technology of biological matrix materials".
On March 28, 2023, the kick-off meeting of the International Alliance for Life Extension Research was held in Jinan, Shandong. The "International Alliance for Life Extension Research" was initiated by Shandong Yinfeng Life Science Research Institute, and jointly established by 13 international scientific research institutions engaged in the field of cryogenic biomedicine from North America, Europe, Oceania, etc., and appeared at the conference through online and offline forms.