How does polyurethane material become the "invisible wings" of drones, soaring low over the blue sea?
2025/09/02
When a drone shuttles between high-voltage power grids for precise inspections, when an agricultural plant protection aircraft keeps working in the pesticide mist, and when a logistics drone carries packages through long-distance jolts and temperature differences - have you ever wondered what is safeguarding the stability and safety of these "aerial workhorses"?

With "low-altitude economy" being included for the first time in the national government's work report, this trillion-dollar new frontier is experiencing explosive growth. Drones, as the core carrier of the low-altitude economy, are pushing the boundaries of their performance. However, behind the ultimate flight performance lies extremely rigorous material tests: they need to be as light as a feather to extend battery life; and as strong as armor to withstand various extreme environments. Traditional metal materials have become too burdensome, and a high-performance composite material called "polyurethane" is quietly emerging as the key force behind enabling the leap of drones.

The Battle of Lightweighting: Reducing Weight and Increasing Range for Drones
Range is the lifeline of the drone. Every extra gram of weight is depleting precious flight time. Polyurethane composite materials stand out in this "gram-by-gram" weight reduction battle due to their outstanding weight-to-strength ratio.
Through the unique structural design and foaming process, the body components and protective shells made of polyurethane not only ensure higher strength, stiffness and tear resistance, but also are much lighter in weight than traditional metal materials. This is equivalent to removing the heavy "lead blocks" from the unmanned aircraft and replacing them with strong "feathers", enabling it to carry heavier mission payloads, fly longer and farther, and directly improving operational efficiency and economic benefits.

Resilient Guardian: The "All-Rounder Defender" Unafraid of Extreme Environments
The operating environment for drones is far from being smooth. The severe cold in the north, the scorching heat in the south, the strong ultraviolet rays on the plateau, the damp salt fog along the coast, as well as the chemical corrosion during agricultural spraying, all pose harsh challenges to the material properties.
The inherent flexibility and excellent weather resistance of polyurethane materials form the second line of defense for unmanned aerial vehicles.

Customized solutions: Transforming the "diverse forms" of drones
From compact consumer-level aerial photography to large-scale industrial applications, the forms and demands of drones vary greatly. Another major advantage of polyurethane materials lies in their extremely strong designability and process adaptability.
By adjusting the formula, different densities, hardnesses, elasticities and functional characteristics (such as flame retardancy, electrical conductivity and heat conductivity) of polyurethane products can be tailored to meet the requirements of specific scenarios. Nanjing Jufa New Materials Co., Ltd. focuses on the research and development of high-performance polyurethane materials and provides professional material solutions for the drone industry: For instance, the aliphatic Urepul 2221P resin is a high-quality material for manufacturing pultruded circular tube supports and landing gear, with excellent mechanical strength, weather resistance and anti-fatigue properties, and is particularly suitable for drone structural components with extremely high requirements for weight control and durability. At the same time, aliphatic prepreg resins can be efficiently molded into drone shell components through the molding process, achieving complex shapes and lightweight design while providing excellent surface quality, impact resistance and environmental stability, helping high-end equipment achieve more outstanding comprehensive performance.

Nanjing Jufa New Materials Co., Ltd., as a rising force in the field of new materials, is an innovative supplier of polyurethane resins and high-performance composite materials. We focus on in-depth research and development of polyurethane technology and its application scenarios. Our solutions cover areas such as automotive manufacturing, communication towers, marine applications, wind power generation, and sports equipment. Nanjing Jufa adheres to driving the market with technology and empowering the industry with innovation. We are committed to becoming a leading promoter of polyurethane application technology in China and a reliable provider of customized solutions!