The Mechanism of Negative-ion Generation of Natural Fiber Fabrics  

作　　者：毕鹏宇 陈跃华 李汝勤 

机构地区：[1]College of Textiles,Donghua University

出　　处：《Journal of Donghua University(English Edition)》2007年第3期354-356,共3页东华大学学报（英文版）

摘　　要：Generally there are three kinds of substances used as negative-ion generator in textiles, natural silicate minerals （ceramic/tourmaline）, natural rare-earth minerals and natural sediment with ultra-fine pores. Based on different additive, the mechanism of negative-ion generation is largely divided into three kinds, the piezoelectricity and pyroelectricity of tourmaline crystal, air ionization caused by low-level radiation and breaking up of the clusters of moisture in air when going through the ultra-free pores of natural sediment. In this paper, the negative-ion generating properties of natural fiber fabrics-cctton, wool, silk and linen were first proposed. By some kind of physical stimulation, rubbing or vibrating, natural fiber fabrics without any additive could also emit negative ions. Considering that the piezoelectric effect was observed in wool fibers, silk fibers and cellulose fibers, the piezoelectricity was studied as a mechanism of negative-ion generation of natural fiber fabrics. Another possible mechanism was the tribeelectricity produced by the sense of ntbbtng or vibrating and tip discharge of hairiness. The Final experiment results verified that the latter would be the main reason, and the electrolytic dissociation of moisture was also contributing to negative-ion generation.通常有三种物质，与极其细小的毛孔在纺织品，自然硅酸盐矿物质(ceramic/tourmaline ) ，自然稀土元素的矿物质和自然沉积用作否定离子的生成器。基于不同添加剂，否定离子的产生的机制大部分被划分成电气石水晶的三种类型，压电和焦热电，低级放射引起的空气电离并且当通过自然沉积的极其细小的毛孔时，在空中潮湿的簇拆散。在这份报纸，自然纤维织物棉花，羊毛，丝绸和粗布的否定离子的产生性质首先被建议。由某种物理刺激，磨擦或颤动，没有任何添加剂的自然纤维织物能也射出否定离子。认为压电的效果在羊毛纤维，丝绸纤维和纤维素纤维被观察，压电作为自然纤维织物的否定离子的产生的机制被学习。另一可能的机制是磨擦和有毛的尖端分泌物的感觉生产的摩擦电。最后的实验结果证实后者将是主要原因，并且潮湿的电解分离也是到否定离子的产生的 ontributing。

关 键 词：MECHANISM negativeion natural fiber PIEZOELECTRICITY TRIBOELECTRICITY 

分 类 号：TS101.8[轻工技术与工程—纺织工程]