醋酯纤维氨纶混纺织物定量分析方法探讨

Discussion on the Quantitative Chemical Analysis of Acetate and Spandex Blended Fabrics

采用了20%盐酸法、75%甲酸法、丙酮法在不同温度和时间下对醋酯纤维和氨纶的混纺织物进行化学溶解法定量分析。试验结果表明:使用20%盐酸在70℃条件下溶解30 min的方法检测结果更接近真实值,且相比现行标准中的75%甲酸法、丙酮法操作简单、反应时间短、测试效率高、试剂无毒环保,建议在检测试验中采用该方法。

The quantitative chemical analysis of acetate/spandex blended fabrics was carried out at different temperature and time by 20%hydrochloric acid method,75%formic acid method and acetone method.It was concluded that the test results obtained by using 20%hydrochloric acid at 70℃ for 30 min was closer to the real value.Compared with the 75%formic acid method and acetone method in existing standard,the method was simple and non-toxic,and had short reaction time.It was suggested that the new method could be used in daily test.