黄麻非织造材料的吸放湿性能研究  

Research on moisture absorption and desorption properties of thermo-bonded jute nonwovens

作　　者：王洪[1] 靳向煜[1] 吴海波[1] 黄潇玲[1] 

机构地区：[1]东华大学纺织面料技术教育部重点实验室,上海201620

出　　处：《上海纺织科技》2013年第3期50-54,共5页Shanghai Textile Science & Technology

基　　金：上海市大学生创新活动计划资助项目(2011096)

摘　　要：研究了不同热熔纤维含量的黄麻热黏合非织造材料在不同条件下的吸放湿性能,结果表明,热熔纤维含量越多,非织造材料达到吸、放湿平衡时的回潮率越低,初始吸放湿速率也越低。在等温条件下,该非织造材料的吸湿滞后性随着外界相对湿度的增加而增加。在非等温条件下,经过反复吸放湿后,其吸湿平衡回潮率变小,且回潮率的变化主要集中在前20 min;在高湿条件下,当外界温度下降到大气结露温度后,其回潮率会有所升高,且升高的幅度随着拒水合成纤维的增加而降低。In this paper, moisture absorption and desorption properties of thermo-bonded jute nonwovens with different content of hot-meh bonding fibres are studied. The result reveals that the regain of balanced moisture absorption and desorption and initial absorption and desorption rate of the nonewovens decreased with the increase of content of hot-melt fibres. Under isothermal condition, the thermal-bonded jute nonwovens exhibits a moisture adsorption hysteresis phenomenon which becomes more obviously with the increase of the environmental humidity. The moisture regain of the thermo-bonded jute nonwovens decreased after second moisture sorption recycle in the non-isothermal condition. In addition, the change of the moisture regain happens sharply in the first twenty minutes. It is also found that the moisture regain of the thermo-bonded jute nonwovens increased when temperature decreased down to the dew temperature under non-isothermal condition with high relative humidity. The moisture regain decreased with the increase of content of hydropbobie fibres.

关 键 词：黄麻 热黏合 非织造材料 吸湿 放湿 

分 类 号：TS176.2[轻工技术与工程—纺织材料与纺织品设计]