摘要
用差示扫描量热仪对PBT/PC体系在升降温过程中酯交换反应进行了循环跟踪,将有机硅磷酸酯及亚磷酸三苯酯对PBT/PC体系酯交换反应的抑制作用进行了比较,并研究了对PBT/PC体系力学性能及热性能的影响.研究结果表明,有机硅磷酸酯能抑制PBT/PC体系酯交换反应、提高PBT/PC共混体系的热稳定性.
In this paper, the differential scanning calorimetry （DSC） was used to follow the transesterifica- tion between poly （butylene terephthalate） and polycarbonate during heating and cooling scans. The effects of silicone phosphate and triphenyl phosphite （TPPi） on the transesterification reaction between PBT and PC were compared. Also the effect on the mechanical and thermal properties was compared. The results show that silicone phosphate can inhibit the transesterification reaction and improve the thermal stability of PBT/PC blends .
出处
《材料研究与应用》
CAS
2009年第1期65-68,共4页
Materials Research and Application
