Performance and Modification Mechanism of Recycled Glass Fiber of Wind Turbine Blades and SBS Composite-Modified Asphalt

Efficient disposal of composite materials recycled from wind turbine blades (WTB) at end-of-life needs to be solved urgently. To investigate the modification effects and mechanism on SBS-modified asphalt glass fiber (GF) WTB, GF-WTB/SBS composite-modified was prepared. Dynamic shear rheometer (DSR) bending beam (BBR) were adopted evaluate its performance. FTIR, SEM, EDS, AFM methods used assess coupling agent pretreatment GF-WTB observe mechanism. The macroscopic tests show that reasonable addition effectively raises high-temperature performance low-temperature crack resistance evaluation index k-value asphalt, optimal content is 2 wt% with 4 SBS. EDS can successfully grafted by UP152 adhesion improved. observation shows SBS have good compatibility, improving elasticity toughness. This study provides a feasible solution for environmentally friendly regeneration WTB contributes development secondary modifier asphalt.