PET／PC共混物的辐射效应研究

STUDY ON THE RADIATION EFFECT OF PET/PC BLEND

研究了经溶液共混制备的聚对苯二甲酸乙二醇酯／聚碳酸酯（ＰＥＴ／ＰＣ）共混物的辐射效应。结果表明：ＰＥＴ／ＰＣ共混物在辐照过程中未发生酯交换反应和交联反应，但有降解反应发生。在研究的剂量范围内。

Blend of poly(ethylene terephthalate PET)and polycarbonate(PC)was prepared by solution casting.The radiation effect on PET/PC blend was studied by means of Soxhlet extraction.Infrared, 13C NMR and DSC analgsis results shows that ester exchange reaction and crosslinking reaction were not observed in the radiation process, but the degradation reaction took place in the radiation process and the ester exchange reaction took place in the solution blending process. When absorbed dose is 0￣21×104Gy, no obvious effect of radiation on the crystal structures of PET and PC in the blend was observed.