Energy harvesting based on roadway electricity generation is investigated using synthetic polymers with piezoelectricity properties. In addition to the properties of polymers, such as high flexibility and resistance to compressible deformation, some polymers can also be piezoelectric. This work focuses on a new low-cost polymer blend, obtained by combining an inexpensive material such as polymethylmethacrylate (PMMA) with another proven piezoelectric polymer, called polyvinylidene-fluoride (PVDF). Several films with different PMMA contents in PVDF were analyzed to determine their output performance in car-tire roadway energy harvesting. The films were excited by normal stress in a range of 0.1–1.4 MPa modeling the mechanical stress that occur in tires. Electrical resistance between 10 and 30 MΩ was shown to induce an electric charge. The voltage measurements generated show that the voltage increases as a function of the applied stress for a 70 wt.% of PVDF in PMMA blend film. PVDF concentrations greater than 70 wt.% were observed to led to supersaturation, while lower concentration does not show an increase in the response. An output power of 2.7 mW m⁻² is achieved with the best film blend, 70PVDF, below 1.4 MPa applied in slow motion. The paper highlights some advantages of the 70PVDF polymer to provide a new design of high-performance piezoelectric performance for roadway energy harvesting.

使用具有压电特性的合成聚合物研究了基于道路发电的能量收集。除了聚合物的特性（例如高柔韧性和抗可压缩变形性）外，某些聚合物还可以是压电的。这项工作着眼于一种新型的低成本聚合物共混物，该共混物是通过将廉价的材料（例如聚甲基丙烯酸甲酯（PMMA））与另一种经过验证的压电聚合物（称为聚偏二氟乙烯（PVDF））相结合而获得的。分析了PVDF中几种具有不同PMMA含量的薄膜，以确定它们在汽车轮胎巷道能量收集中的输出性能。通过在0.1到1.4 MPa范围内的法向应力对薄膜进行激励，从而模拟了轮胎中出现的机械应力和应变。已显示10至30MΩ之间的电阻会感应电场。产生的电压测量结果表明，对于PMMA共混膜中70％（重量）的PVDF，电压随施加的应力而增加。观察到大于70 wt。％的PVDF浓度导致过饱和，而较低的浓度则未显示出响应的增加。输出功率为2.7 mW m使用慢动作时低于1.4 MPa的最佳薄膜共混物70PVDF可达到^-2。本文着重介绍了70PVDF聚合物的一些优点，可为道路能量收集提供高性能压电性能的新设计。