空心阴极远区等离子体接枝聚合表面改性丙纶无纺布的吸碱性能

摘要

利用空心阴极远区等离子体改性技术对丙纶无纺布表面进行了改性处理，研究了等离子体处理参数对丙纶无纺布吸碱性能的影响；采用红外光谱、扫描电镜等对丙纶无纺布表面的化学组成和形态等进行了表征。结果表明：等离子体处理时间、放电功率、气体流量等对丙纶无纺布的吸碱性能有很大的影响，而且试样距丙烯酸喂气管的距离对处理效果的影响也很明显；通过空心阴极远区等离子体接枝聚合表面改性处理，在丙纶无纺布的表面引入了亲水性羧基基团，改善了其浸润性，显著提高了其吸碱率和吸碱速率，达到了国外进1：7电池隔膜的指标。%The surface of polypropylene non-woven fabrics was modified by hollow cathode remote plasma modification technology. The effect of the plasma treatment parameters on the property of polypropylene non-woven fabrics was studied. The FTIR and SEM were used to analyze the chemical composition and morphology. The results show that plasma treatment time, discharge power, gas flow had a great influence on the alkali absorption property, and the effect of the distance between the sample and acrylic acid feeding tube on treatment results was obvious. The invasion property of the polypropylene non-woven fabrics was improved due to the import of hydrophilic group by hollow cathode remote plasma surface modification. The alkali absorption capacity and rate were raised obviously, and the alkali absorption performance reached the level of foreign battery separator.