It is easy to determine the compability of multiphase systems by he physical ageing at temperature below TV The results show that PEK-C/PSF blend is a compatible system and PEK-C/PES-C is a partially compatible system.

• 利用物理老化能更为方便地判断多相体系的相容性；结果表明PEK-C/PSF为相容体系；而PEK-C/PES-C相容性较差.