Page 77 - 精细化工2019年第12期

第 12 期 苏秀霞，等: 氨基磺酸盐型水性醋酸纤维乳液的制备与性能 ·2405·

n(AAS)=1.1∶1 的涂膜表面致密光滑，平均接触角为
(110.2° ± 2°)，表现出一定的疏水性；若要拓宽
SWCA 的应用范围，还需对 SWCA 乳液进一步改性，
增强涂膜的耐水性。
（3）经磺酸盐改性后醋酸纤维分子链的有序结
构被破坏，所得的 SWCA 呈非晶态或次晶态结构。
同时，热重分析表明，SWCA 具有良好的热稳定性，
可满足一般场合的使用要求。

参考文献：
图 9 CA(a)、SWCA(b)涂膜的热分解曲线
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Fig. 9 Thermogravimetric curves of CA (a) and SWCA (b) protic ionic liquids as low cost catalysts or direct transesterification

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n(AAS)=1.2∶1、1.3∶1、1.4∶1 来说，n(IPDI)∶ （下转第 2430 页）