Three-dimensional printers have made significant advances in every corner of the manufacturing industry: scientists have used it to design human tissue, print rubber materials, reduce the danger of drones to ground personnel, etc. Recently, 3D printing has also created A lightweight material that is 10 times stronger than steel and has a density of only 1/20 that of steel. The creation comes from a team of scientists at the Massachusetts Institute of Technology, based on 3D printed object technology, which transforms original objects after printing, such as color, shape, size, and other physical and chemical properties. This object consists of a special polymer containing chemical groups of TTC. Each TTC is like a "folded accordion" that can be activated when exposed to a blue LED light. The new monomer molecule then attaches itself to the polymer, giving the object new properties: the soft object may become hard, or the color can be changed if some monomeric polymer is added Such objects can expand or contract under certain temperature conditions. Jeremiah Johnson, associate professor of chemistry at the Massachusetts Institute of Technology, said: "Our idea is that materials can be printed or used, using light elements, turning materials into other materials, or allowing materials to grow further." This approach opens up new doors for manufacturers to easily create materials for use in areas such as construction or medical . It is understood that researchers have tried similar methods in the past. Last year, Harvard scientists introduced so-called "4D printing" technology, a method of immersing 3D printed objects in water to change shape. (In this case, the fourth dimension is time) 4D printing Flood Bag,Alternative Flood Bags,Flood Barrier Bags,Quick Dam Flood Bags Denilco Environmental technology(Suzhou)Co., Ltd. , https://www.wflood.com