Up to now, it is a major challenge to protect leading edge of the blades from solid particle erosion. Herein, we propose a structure optimization strategy to fabricate non‐woven (NW) enhanced thermoplastic polyurethane nanocomposite films (thermoplastic polyurethane [TPU]‐NW@G/Cx) with “sandwich‐like” structure by hot pressing technology. TPU NW/graphene nanoplates/carbon nanotube (NW@G/Cx) interlayer film were first fabricated by spraying method. Then the interlayer film was laminated between TPU films to fabricate nanocomposite films. Such prepared TPU‐NW@G/Cx film shows excellent solid particle erosion resistance and high‐tensile strength. For example, the “steel‐and‐mortar” structure of NW fabric in TPU film results in high‐tensile strength of 45 MPa and storage modulus of 21.2 MPa for TPU‐NW@G/C1.0, increasing by 25% and 171% compared with original TPU film (35 MPa, 8 MPa), respectively. In addition, compared with pure TPU film, the “sandwich‐like” structure endows TPU‐NW@G/C1.2 with excellent solid particle erosion resistance and the thermal conductivity (0.251 W/m·K). These superior properties extends application of the TPU‐NW@G/Cx film on wind turbine blades.

fullerenes; graphene; nanotubes; polyurethane; thermal properties; thermoplastics

Zhengzhou University