Summary Title: The Evolution of Windshield Wipers and the Prominence of TPV Material in Modern Automotive Technology
Time of issue:2025-05-15
Summary Title: The Evolution of Windshield Wipers and the Prominence of TPV Material in Modern Automotive Technology
Historical Development of Windshield Wipers
When automobiles first emerged, they had no windshield wipers. In 1903, American woman Mary Anderson invented the first windshield wiper, which remained her sole invention. Unfortunately, her creation saw little adoption at the time. Around 1910, another female inventor, Charlotte Bridgeford, developed an "automatic" windshield wiper operated by a pneumatic system. However, the patent for the final standardized wiper design was eventually acquired by Bosch.
TPV Material: The Ideal Choice for Modern Wiper Blades
With the rapid growth of China's automotive industry, high-strength, tough, and weather-resistant plastics are increasingly replacing metals in auto parts, and windshield wipers are a prime example. Material selection is critical to ensuring wiper functionality across diverse climatic conditions. Thermoplastic Vulcanizate (TPV) material stands out due to its excellent mechanical properties. After special compounding, it exhibits outstanding tear resistance, high-temperature resistance, flex fatigue resistance, and UV resistance, making it the ideal material for automotive wiper blades.
Key Properties of TPV Material
- Superior Elasticity and Durability: TPV has excellent elasticity and compression set resistance, with environmental and aging resistance comparable to EPDM rubber, and oil/solvent resistance similar to general-purpose neoprene.
- Wide Application Range: It operates effectively across a broad temperature range (-60~150℃) and hardness range (25A—54D), allowing easy coloring and greatly enhancing design flexibility for molded products.
- Efficient Processing: TPV can be processed using standard thermoplastic methods like injection molding and extrusion, requiring no additional equipment. It features high fluidity and low shrinkage for efficient manufacturing.
- Environmental Friendliness: TPV is green and recyclable, maintaining performance after up to six recycling cycles, which meets strict environmental requirements.
- Superior Surface Quality: With a low specific gravity (0.90—0.97), TPV products have uniform appearance, high surface quality, and excellent tactile feel.
TPV Wiper Blades: Technical Advantages
TPV wiper blades produced via hard-soft co-extrusion technology have a matte, smooth surface with optimal softness. The rigid base ensures easy installation, resistance to shrinkage and detachment, and weather resistance down to -50~-60℃.
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