纺织学报 ›› 2016, Vol. 37 ›› Issue (05): 1-5.

• 纤维材料 •    下一篇

稻秸秆纤维的吸湿性能

  

  • 收稿日期:2015-04-09 修回日期:2015-12-07 出版日期:2016-05-15 发布日期:2016-05-10

Moisture adsorption property of rice-straw fiber

  • Received:2015-04-09 Revised:2015-12-07 Online:2016-05-15 Published:2016-05-10

摘要: 为拓展稻秸秆纤维的应用,利用扫描电镜对稻秸秆纤维的表面形态进行表征,测试了稻秸秆纤维、亚麻纤维、棉纤维在标准大气条件下的吸放湿特性,绘出了3种纤维的吸放湿回归曲线,推导出吸湿和放湿速率回归方程,对比分析了3种纤维的吸湿性能的差异。实验结果表明:稻秸秆纤维纵向具有大量沟槽,比表面积很大;稻秸秆纤维具有良好的吸湿、放湿性能,稻秸秆纤维的吸湿回潮率为9.3%,放湿回潮率为10.35%;3种纤维的吸放湿速率呈指数曲线衰减,亚麻纤维的吸放湿速率最高,稻秸秆纤维的吸放湿速率居中,棉纤维的吸放湿速率最低。

关键词: 吸放湿速率, 形态结构, 吸湿性, 吸放湿速率

Abstract:

In order to study the moisture absorption and liberation properties of rice-straw fiber,the morphological structure of rice-straw fiber was characterized by scanning electron mircroscope,the absorption and liberation properties of rice-straw fiber,flax fiber and cotton fiber were tested in the standard normal atmospheric conditions.The moisture absorption and desorption properties of rice-straw fiber were tested.Their regression curves of moisture absorption and liberation were drawed,and based on it,the regression equations of moisture absorption and desorption velocity were derived.The hygroscopity of rice-straw fiber was analyzed and compared with flax fiber and cotton fiber. The results show that,the lengthwise of the rice-straw fiber has a large number of grooves and it’s specific surface area is large.The moisture absorption and liberation of rice-straw fiber are very good.The moisture absorption and liberation regain rate of rice-straw fiber are 9.3% and 10.35% respectively.The moisture absorption and liberation rate of three fibers decay with exponential curve.The moisture absorption and liberation rate of flax fiber is the quickest,rice-straw fiber in the second,and cotton fiber is the slowest.

Key words: rice-straw fiber, morphological structure, hygroscopicity, absorption and liberation rate

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