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At present, "shape memory plastics" that can change shape according to temperature changes have entered the experimental stage, and are used to make memory springs installed on doors and windows. Doors and windows can be automatically opened and closed with changes in light intensity and temperature, and the natural light entering the room can be adjusted; On the shower head, the temperature of the outlet water can be adjusted automatically. There is also an in-cell sensor that weaves in climbing ropes. Once the rope is worn, the strength drops and the color of the rope automatically alerts the police.
In addition, scientists are also considering other effective ways to make materials smarter.
Scientists from the University of Illinois, USA, inspired by the body's self-healing function, have made gratifying progress in repairing fiberglass and other synthetic materials. They invented a new method that allows polymers to "cure themselves up." The idea is to add healing-prone "lymphatic fluid" to the polymer, and the chemistry needed to activate the repair solution to initiate the repair process. catalyst.
Artificial polymers have been widely used in everyday life. Vehicle fenders, cell phone circuit boards, tennis racquets, and pole vaults are all made of reinforced fibers. However, fatigue and wear greatly reduce the service life of such durable goods. Every time the car bumps, every bump on the surfboard, and every start of the motor, the composite material will begin to generate tiny micro-cracks with vibration. Over time, the synthetic material will weaken to the extent of the repair or discard. For a long time, scientists have been trying to find an easy way to repair synthetic materials to make tennis rackets stronger and more durable, surfboards easier to repair, and polymer car bodies stronger and more beautiful. Now they found it. It may not be long before this brand new car will open a car assembly line.
In the past, the repair method was to perforate, drill, fill, and apply patches to damaged parts. Now, only a special microcapsule filled with a special resin is uniformly mixed in the resin matrix beforehand when the artificial synthetic material is made. The chemical catalyst crystallites are evenly spread like salt and finally formed together to allow the polymer parts embedded in countless microcapsules to have their own healing power. In the event of breakage, the pre-ambushing catalyst activates the special resin in the capsule, which causes the resin to soften automatically and become a viscous liquid. It injects and fills the gaps or holes that appear and gradually solidifies, thus enabling the artificial synthetic material to continue for a long time automatically. Repair broken parts.
The research host, Scott White, a materials engineer and astronaut engineer at the University of Illinois, said that the results of this research are extremely versatile. It can extend the life of fillers used for shaping and can make them more durable. Spaceships, etc.
The White team has teamed up with Motorola to prepare microelectronic circuit boards with self-healing capabilities in 3 to 5 years. As for the application of aircraft and spacecraft, there is still a long way to go. It has always been the dream of scientists to make all kinds of materials smarter and make the total products more durable.
At present, "shape memory plastics" that can change shape according to temperature changes have entered the experimental stage, and are used to make memory springs installed on doors and windows. Doors and windows can be automatically opened and closed with changes in light intensity and temperature, and the natural light entering the room can be adjusted; On the shower head, the temperature of the outlet water can be adjusted automatically. There is also an in-cell sensor that weaves in climbing ropes. Once the rope is worn, the strength drops and the color of the rope automatically alerts the police.
In addition, scientists are also considering other effective ways to make materials smarter.
Scientists from the University of Illinois, USA, inspired by the body's self-healing function, have made gratifying progress in repairing fiberglass and other synthetic materials. They invented a new method that allows polymers to "cure themselves up." The idea is to add healing-prone "lymphatic fluid" to the polymer, and the chemistry needed to activate the repair solution to initiate the repair process. catalyst.
Artificial polymers have been widely used in everyday life. Vehicle fenders, cell phone circuit boards, tennis racquets, and pole vaults are all made of reinforced fibers. However, fatigue and wear greatly reduce the service life of such durable goods. Every time the car bumps, every bump on the surfboard, and every start of the motor, the composite material will begin to generate tiny micro-cracks with vibration. Over time, the synthetic material will weaken to the extent of the repair or discard. For a long time, scientists have been trying to find an easy way to repair synthetic materials to make tennis rackets stronger and more durable, surfboards easier to repair, and polymer car bodies stronger and more beautiful. Now they found it. It may not be long before this brand new car will open a car assembly line.
In the past, the repair method was to perforate, drill, fill, and apply patches to damaged parts. Now, only a special microcapsule filled with a special resin is uniformly mixed in the resin matrix beforehand when the artificial synthetic material is made. The chemical catalyst crystallites are evenly spread like salt and finally formed together to allow the polymer parts embedded in countless microcapsules to have their own healing power. In the event of breakage, the pre-ambushing catalyst activates the special resin in the capsule, which causes the resin to soften automatically and become a viscous liquid. It injects and fills the gaps or holes that appear and gradually solidifies, thus enabling the artificial synthetic material to continue for a long time automatically. Repair broken parts.
The research host, Scott White, a materials engineer and astronaut engineer at the University of Illinois, said that the results of this research are extremely versatile. It can extend the life of fillers used for shaping and can make them more durable. Spaceships, etc.
The White team has teamed up with Motorola to prepare microelectronic circuit boards with self-healing capabilities in 3 to 5 years. As for the application of aircraft and spacecraft, there is still a long way to go.
Smart plastic that is smart and self-healing
It has always been the dream of scientists to make all kinds of materials smarter and make the total products more durable.