It was concluded that both PET and A2 were all pseudoplastic fluids and the viscosity of A2 was lower than that of PET because of the effect of the third component.

• 结果表明：A2熔体是切力变稀流体；共聚酯大分子中第三组分的加入，使体系粘度降低，粘流活化能比PET高，表明共聚酯粘度对温度的敏感性较大；