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Black packaging technology was born! Can eat to read more environmental protection!
by：Lisson
2020-11-17
Black packaging technology was born!
Can eat to read more environmental protection!
Black packaging technology was born!
Can eat to read more environmental protection!
graphene are already well known magic materials, because of its excellent thin degree and strength, become the good heat conduction and conductive materials, and antibacterial, and even to fight cancer.
but now this magical material actually edible!
rice university's James Tour has confirmed a new graphene 'tag' method of etching on the food such as bread and potatoes, including material such as cardboard and cloth, as RFID tags.
the development in research and development of new materials before the laser induced graphene, 闲逛) On the basis of the work.
this technique involves using laser heating surface, forming a graphene sheet of foam structure. From the source, the base material is called a polyimide polymer, then success will be the same process applied to rice university team LIG in production of wood surface.
Tour observed: 'in some cases, multiple laser can form two step reaction' 'first of all, laser into the target surface by means of photoelectric thermalization amorphous carbon. Then, in the subsequent laser to process, will have a choice of infrared absorption amorphous carbon conversion for LIG '.
we found that the wavelength is very important.
the team found that the same technology is suitable for food such as bread, potatoes and coconut.
this among them, a kind of organic polymer called lignin is critical, it not only exists in all of these material, also can be dried wood used for formation of graphene.
because these graphene etching with conductivity, leading to the possibility of RFID tags and sensors can be embedded on the food directly, tell you the history of the goods or to warn of potential trace organic pollutants.
Tour said, 'may all the food will have a small RFIS labels, introduced the current position information, the storage time, origin, and reach the table before the journey. '' all of these can not independent labels on food, but in the food itself. 'Conversion table packaging printing knowledge
graphene are already well known magic materials, because of its excellent thin degree and strength, become the good heat conduction and conductive materials, and antibacterial, and even to fight cancer.
but now this magical material actually edible!
rice university's James Tour has confirmed a new graphene 'tag' method of etching on the food such as bread and potatoes, including material such as cardboard and cloth, as RFID tags.
the development in research and development of new materials before the laser induced graphene, 闲逛) On the basis of the work.
this technique involves using laser heating surface, forming a graphene sheet of foam structure. From the source, the base material is called a polyimide polymer, then success will be the same process applied to rice university team LIG in production of wood surface.
Tour observed: 'in some cases, multiple laser can form two step reaction' 'first of all, laser into the target surface by means of photoelectric thermalization amorphous carbon. Then, in the subsequent laser to process, will have a choice of infrared absorption amorphous carbon conversion for LIG '.
we found that the wavelength is very important.
the team found that the same technology is suitable for food such as bread, potatoes and coconut.
this among them, a kind of organic polymer called lignin is critical, it not only exists in all of these material, also can be dried wood used for formation of graphene.
because these graphene etching with conductivity, leading to the possibility of RFID tags and sensors can be embedded on the food directly, tell you the history of the goods or to warn of potential trace organic pollutants.
Tour said, 'may all the food will have a small RFIS labels, introduced the current position information, the storage time, origin, and reach the table before the journey. '' all of these can not independent labels on food, but in the food itself. 'Conversion table packaging printing knowledge
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