Reading intuitive packaging black technology was born! It's more environmentally friendly to eat and read
release date: Source: active intelligent packaging industry consultation editor: Yu Jia Views: 3224 copyright and disclaimer
core tip: graphene is already a well-known magical material. Because of its excellent thickness and strength, it has become a good heat and conductive material, and is resistant to bacteria, and even cancer. Yes, now this magical material is actually edible
[China Packaging News] graphene is already a well-known magical material. Because of its excellent thickness and strength, it has become a good heat conducting and conductive material, and is resistant to bacteria and even cancer
but now this magical material is actually edible
James tour of Rice University has confirmed a method to etch graphene "tags" on foods such as bread and potatoes, and the influence of square structural parameters on the properties of in-mold self reinforced monopolymer composites, including materials such as cardboard and cloth, as RFID tags
this development is based on the work of laser-induced graphene (lig), a previously developed new material
however, ISO and their respective national standards should be adopted as far as possible in terms of material testing methods. This technology involves using laser to heat the surface of the material to form a sheet-like graphene with foam structure. From the root, this basic material is a polymer called polyimide, and then Rice University team successfully used the same process to make lig on the surface of wood
tour observed: "in some cases, multiple lasers can form a two-step reaction" "first, the laser converts the target surface into amorphous carbon by photoelectric heating. Then, in the subsequent process of laser transmission, the selective absorption of infrared light converts amorphous carbon into lig"
we find that wavelength is very important
the team found that this technology is also applicable to foods such as bread, potatoes and coconuts
among them, an organic polymer called lignin is very critical. It not only exists in all these substances, but also can be used to form graphene from dry wood
because these graphene etchings are conductive, it is possible to embed RFID tags and sensors directly on food to explain the history of the product or warn you of potential trace organic pollutants
tour said, "maybe all food will have a small RFIs label, which introduces the current location information, storage time, the original road and origin of the new film blowing machine, and the journey to the table." "All this can be found not in the independent label of food, but in the food itself."