HC Plastics News: Foreign media reports, researchers at the University of Michigan have found a new way to change the molecular structure of plastics, so that the thermal conductivity of the material is roughly the same as glass. This new type of plastic may make the product lighter and lighter, while reducing the price of the product while improving the energy efficiency of the material. Since the weight of the car has a direct impact on the cruising range of the electric vehicle, the new lightweight plastic will help to increase the cruising range of the electric vehicle. The new thermal engineering process will be used in the manufacture of lightweight plastic parts for vehicles, LED lights and computers. Until now, due to factors such as plastics being dissipating heat, many materials have not been used in many special applications. Michigan develops new plastics or upgrades electric vehicle mileage Earlier, researchers added metal fillers or ceramic fillers to plastics to improve their thermal conductivity, but this technology was largely unsuccessful, not to mention its high price. Researchers at the University of Michigan have adopted a new approach to create a heat-dissipating path for plastic materials through a chemical process that expands and strengthens the tightly packed molecular chains of plastics. The plastic polymer is first dissolved in water, and then the electrolyte is added to raise the pH. Each link within the polymer chain will carry a negative charge that causes them to repel, spread and unfold. Since then, the researchers have used an industrial process called "spin casting" to make the solution into a solid plastic film. According to Kevin Pipe, an associate professor of mechanical engineering at the school, “For a long time, researchers have used various methods to change the molecular structure of polymers and give them new mechanical, optical or electronic properties. However, this time, molecular structures are used. Designed to change the thermal conductivity of materials, such research is rarely heard. Usually, the heat flow of a material is a complex process, even if it is only a small improvement in the thermal conductivity of the polymer, it may produce a larger technology. "technological impact". Editor in charge: Ye Dan
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