Simultaneously improved solid particle erosion resistant and strength of graphene nanoplates/carbon nanotube enhanced thermoplastic polyurethane films

作者：Ma, Yuji; Fang, Mei; Huang, Ming; Zhang, Na^*; Lu, Bo; Yang, Peipei; Liu, Chuntai; Shen, Changyu

来源：Journal of Applied Polymer Science, 2021, 138(36): e50924.

DOI：10.1002/app.50924

• fullerenes
• graphene
• nanotubes
• polyurethane
• thermal properties
• thermoplastics

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/C-x) with "sandwich-like" structure by hot pressing technology. TPU NW/graphene nanoplates/carbon nanotube (NW@G/C-x) 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/C-x 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/C-1.0, 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/C-1.2 with excellent solid particle erosion resistance and the thermal conductivity (0.251 W/m center dot K). These superior properties extends application of the TPU-NW@G/C-x film on wind turbine blades.

• 单位
  工业装备结构分析国家重点实验室; 郑州大学; 大连理工大学