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首页> 外文期刊>Journal of Applied Polymer Science >Analysis of physical properties of PET/CD-PET polyblend hollow fiber and its kinetics of alkaline hydrolysis
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Analysis of physical properties of PET/CD-PET polyblend hollow fiber and its kinetics of alkaline hydrolysis

机译：PET / CD-PET混纺中空纤维的物理性能分析及其碱水解动力学

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Cationic dyeable poly(ethylene terephthalate) (CD-PET) was formed by copolymerizing dimethylterephthalate (DMT),5-sodium sulfonate dimethyl isophthalate (SIPM) with a molar ratio of 2% and ethylene glycol (EG). Blends of regular poly(ethylene terephthalate) (PET) and CD-PET were spun into hollow fibers. The fibers were then treated with aqueous NaOH. This study investigated the physical properties of PET/CD-PET polyblend hollow fibers and their kinetic behavior of alkaline hydrolysis using differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), the density gradient method, a gel permeation chromatograph (GPC), a rheometer, and regression analysis of the statistical method. For the alkaline hydrolysis kinetics equation of PET, CD-PET, and PET/CD-PET polyblend materials: - dW/dt = KC(alpha)A(beta), beta values of chip and POY/ FOY hollow fibers are equal to 1. Moreover, R-2 of the kinetics equation of chip/POY/FOY for a from 1.09-1.35/ 1.08-1.32/1.06-1.29 were better than those of a = 1. Experimental results indicate that the rate constant of alkaline hydrolysis was CD-PET hollow fiber > PET/CD-PET polyblend hollow fibers > PET hollow fiber and FOY > POY > > Chip. (C) 2002 Wiley Periodicals, Inc. [References: 34]
机译：阳离子可染色聚对苯二甲酸乙二醇酯（CD-PET）是通过将摩尔比为2％的对苯二甲酸二甲酯（DMT），5-磺酸钠间苯二甲酸二甲酯（SIPM）和乙二醇（EG）共聚而形成的。将常规聚对苯二甲酸乙二醇酯（PET）和CD-PET的混合物纺成空心纤维。然后将纤维用NaOH水溶液处理。本研究使用差示扫描量热法（DSC），广角X射线衍射（WAXD），密度梯度法，凝胶渗透色谱法研究了PET / CD-PET混纺中空纤维的物理特性及其碱性水解的动力学行为（GPC），流变仪和统计方法的回归分析。对于PET，CD-PET和PET / CD-PET混合材料的碱性水解动力学方程：-dW / dt =KCαAβ，木片和POY / FOY中空纤维的β值等于1此外，对于1.09-1.35 / 1.08-1.32 / 1.06-1.29的a，chip / POY / FOY动力学方程的R-2优于a = 1的那些。实验结果表明，碱性水解的速率常数为CD-PET中空纤维> PET / CD-PET混纺中空纤维> PET中空纤维和FOY> POY切屑。 （C）2002 Wiley Periodicals，Inc. [参考：34]

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