TPU/POE共混体系相分离过程的ATR-FTIR研究

详细信息

Studies on TPU/POE’s phase separation by ATR-FTIR

摘要: 探讨了一种新的共混体系热塑性聚氨酯（TPU）/聚乙烯-辛烯共聚物（POE）共混体系相分离过程中的衰减全反射傅里叶变换红外光谱（ATR-FTIR），结果发现：对于不相容TPU/POE体系，基本随着热老化时间的增加，ATR-FTIR特征峰面积也逐渐增加（温度较低除外），而温度较高时则会先增加后降低；而PU/POE/POE-g-MA体系，由于相容剂的加入，ATR-FTIR特征峰面积则随着热老化时间的增加而逐渐降低.
- TPU/POE共混物 /
- 共混体系 /
- 衰减全反射傅里叶变换红外光谱 /
- 相分离 /
- 热老化
Abstract: The process of phase separation for a new thermoplastic polyurethane/poly (ethylene-octene) (TPU/POE) blending system was studied by Fourier Transform Attenuated Total Reflection Infrared Spectroscopy (ATR-FTIR). The results show that, for the incompatible TPU/POE system, the area of characteristic peak on ATR-FTIR increased with the increase of thermal aging time (except at quite low temperatures), while it increased first and then decreased at higher temperatures. For a PU/POE/POE-g-MA system, the area decreased due to the addition of compatibilizers.