讨论了酯化反应,熔融聚合,固相聚合阶段的工艺条件。
The process conditions in the stages of esterification, melt polymerization and solid state polymerization were discussed.
通过控制辐射功率、辐射时间而控制聚合为低温固相聚合。
Solid state polymerization can be controlled in low temperature by controlling time and power of radiation.
介绍了用压差法测定改性聚酯切片经干燥和固相聚合后的含水率。
Water content of modified polyester chips were determined by pressure-difference method after being dried and solid state polycondensation.
研究发现,共聚酯的熔融峰随着固相聚合温度和时间的变化而与纯PET有明显的差别;
The experimental results show that the changes of melt peaks of copolyesters with changing of S. S. P. temperature and time are different from PET homopolymer.
应用dsc、TGA和TMA研究了固相聚合pet树脂的双重熔融行为、热稳定性及瓶坯、包装瓶的结晶性能和膨胀性。
The double - melt behavior, thermal stability of soild state condensation polymerization of PET and the crystallization, expansibility of PET bottle have been studied by DSC, TGA and TMA.
在没有固相聚合的情况下制备的共聚酯包装树脂,在降低的粘度改变下加工该共聚酯树脂的方法,和通过该方法制备的容器及其它制品。
Co-polyester packaging resins prepared without solid-state polymerization, a method for processing the co-polyester resins with reduced viscosity change, and containers and other articles prepared by.
在没有固相聚合的情况下制备的共聚酯包装树脂,在降低的粘度改变下加工该共聚酯树脂的方法,和通过该方法制备的容器及其它制品。
Co-polyester packaging resins prepared without solid-state polymerization, a method for processing the co-polyester resins with reduced viscosity change, and containers and other articles prepared by.
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