【摘要】 用粉末干混法制备结晶／结晶共混体系ＰＰＳ／ＰＥＥＫ，并用ＤＳＣ研究了不同熔融温度下淬火ＰＰＳ及ＰＰＳ／ＰＥＥＫ共混物中ＰＰＳ的结晶熔融行为。熔融温度(Ｔ_ｍｅｌｔ)高于３６０℃时，对ＰＰＳ的结晶熔融行为有影响，结晶温宽（△Ｔｃ）随Ｔ_ｍｅｌｔ提高而加宽；ＰＥＥＫ加入及ＰＥＥＫ含量增加，使ＰＰＳ的结晶、熔融温度下降。共混物中ＰＰＳ的结晶熔融行为受Ｔ_ｍｅｌｔ影响更大。更多还原

【Abstract】 Crystal/Crystal blends of poly(phenylene sulfiede) and poly (ether ether ketone) (PPS/PEEK) have been prepared by powder mixing and melting at different temperatures. The crystallization and melting behavior of PPS and PPS in quenched blends have been investigated by differeatial scanning calormetry (DSC).The temperatures of crystallization and melting of PPS shift to lower temperature as PPS is melted above 360 ℃. The breadth of the crystallization exotherms (△Tc) increases as the T(melt) is increased. The temperature of crystallization and melting of PPS decrease by addition of PEEK and with increasing of PEEK content. The crystallization and melting behavior of PPS in PPS/PEEK blends is geatly influnced by the T(melt).更多还原