常压He/O_2等离子体预处理对棉浆纱性能的影响

Influence of He/O_2 atmospheric pressure plasma pretreatment on sizing adhesion strength and breaking elongation of sized cotton yarn

研究了不同氦/氧(He/O2)等离子体预处理条件(处理时间、氧气流量、喷头到纱线的距离)对原棉纤维表面形貌、润湿性、表面摩擦性能及棉纱浆液黏附力(SAS)、断裂伸长率等的影响。结果发现,等离子处理条件对纤维表面形态和润湿性有着重要影响,从而影响SAS及浆纱断裂伸长率:随着处理时间和氧气流量的增长,SAS和浆纱断裂伸长率先上升后下降;随着JTSD的变大,SAS和浆纱断裂伸长率都呈现下降趋势。经过等离子预处理的浆纱试样和未经等离子处理的浆纱试样相比,其SAS和断裂伸长率可分别可提高59%和36%。

Influence of plasma pretreatment conditions like different treatment duration, oxygen flux and Jet to the substrate distance （JTSD） on surface morphology, wettability, friction performance of cotton fiber as well as on sizing adhesion strength （SAS） and breaking elongation of cotton yarn were studied in this paper. Results show that the surface properties of cotton fiber including wettability and topography can be greatly affected by plasma treatment conditions, which consequently influence SAS and breaking elongation of cotton yarn. SAS and breaking elongation of cotton yarn rise firstly and then decrease with the increase of treatment duration and oxygen flux respectively while both of them go down with the rise of JTSD. Compared with the sized cotton roving without plasma pretreatment, SAS and breaking elongation of the sized roving with olasma Dretreatment can be raised by 59% and 36%. resnecfively.