塑料科技2024，Vol.52Issue(2)：20-24,5.DOI:10.15925/j.cnki.issn1005-3360.2024.02.004
退役风电叶片PET回收处理流变性能研究
Study on Rheological Properties of Decommissioned Wind Power Blade PET Recovery Treatment
摘要
Abstract
PET rigid closed-cell foam is widely used as a sandwich material in wind turbine blades,in order to further improve the large-scale utilization of retired blades and realize the green and sustainable development of wind turbine blade materials,the effective utilization of PET materials has attracted increasing attention.In this paper,the dynamic rheological properties of PET foam recycled powder(Re-fPET)were studied by rotational rheometer,and the composite viscosity of Re-fPET recycled material was sensitive to temperature,showing obvious shear thinning behavior,and the composite viscosity decreased more obviously above 270℃.The zero shear viscosity η0 was obtained by extrapolation by the Cross method,the activation energy of viscosity was further calculated according to Arrhenius,and the ΔEη0 was 241.29 kJ/mol,which had a significant effect on the untangling of the segments.The rheological characteristics of Re-fPET recycled powder were studied using a torque rheometer.The torque value of Re-fPET resin decreased rapidly and the equilibrium time was shorter above 270℃.The torque value after equilibrium was smaller,the melt characteristic viscosity decreased significantly,and the material was significantly degraded,which was not conducive to processing.关键词
风电叶片PET泡沫/黏流活化能/零剪切黏度/流变性能Key words
Wind power blade PET foam/Viscous flow activation energy/Zero shear viscosity/Rheological property分类
化学化工引用本文复制引用
王靖,陈煌,黄明富,黄逸舟,刘洁,朱光旭..退役风电叶片PET回收处理流变性能研究[J].塑料科技,2024,52(2):20-24,5.基金项目
高新技术产业科技创新引领计划(2021GK4053) （2021GK4053）
