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尼龙6,6(PA_(6,6)及其共混物结晶性能的研究
引用本文:李刚,李滨耀,綦玉臣,张延.尼龙6,6(PA_(6,6)及其共混物结晶性能的研究[J].高分子学报,1992,0(3):372-376.
作者姓名:李刚  李滨耀  綦玉臣  张延
作者单位:中国科学院长春应用化学研究所,中国科学院长春应用化学研究所,中国科学院长春应用化学研究所,中国科学院长春应用化学研究所 长春,邮政编码:130022,长春,邮政编码:130022,长春,邮政编码:130022,长春,邮政编码:130022
摘    要:<正> 尼龙6,6(PA_(6,6))是一种典型的结晶性工程塑料,被广泛应用于纺织、机械制造等行业,但其加工温度范围较窄,耐热性差。聚醚砜(PES)具有较高的玻璃化转变温度,是非晶聚合物,可以诱发某些结晶聚合物结晶。PES与PA_(6,6)共混体系的研究报道较少,本文用熔融法将PES与PA_(6,6)制成共混物,企图改善PA_(6,6)的结晶性,以提高其耐热性,取得了较理想的结果。

关 键 词:尼龙6  6、聚醚砜  共混物  等温结晶动力学
收稿时间:1991-06-28

STUDY ON CRYSTALLIZATION OF NYLON-6,6 AND ITS BLENDS
LI Gang,LI Bin-yao,QI Yu-chen,ZHANG Yan.STUDY ON CRYSTALLIZATION OF NYLON-6,6 AND ITS BLENDS[J].Acta Polymerica Sinica,1992,0(3):372-376.
Authors:LI Gang  LI Bin-yao  QI Yu-chen  ZHANG Yan
Institution:Changchun Institute of Applied Chemistry; Changchun; Post code: 130022
Abstract:The melting behavior of Nylon-6,6 ( PA6.6) and its blend with polyethersulfone (PES) were studied by differential scanning calorimetry. The Avrami equation was used to analyse the kinetics of isothermal crystallization of the samples. It was showed that crystallization temperature of the blend increased 15℃ than that of pure PA6,6 and the Avrami exponent of the sample containing 20% PES was 2.1 while 1.4 for pure PA6,6 The activation energies were 739.6 KJ/mol and 646.1 KJ/mol for the PA6.6 and the blend with 20% PES, respectively. It was attributed to the nucleation of the PES during the crystallization of PA6.6.
Keywords:Nylon-6  6  Polyethersulfoae  Blends  Isothermal crystallization kinetics  
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