为了解决烟用聚丙烯(PP)滤嘴材料对烟气吸附性能差、降焦性能低等问题,采用等离子体辐射引发的方法,在烟用聚丙烯纤维基体上分两步接枝丙烯酸(AA)和2-丙烯酰胺-2-甲基丙磺酸(AMPS)单体,制备了聚丙烯高吸附滤嘴.讨论了单体浓度、辐照时间、阻聚剂浓度对聚丙烯纤维接枝率的影响.利用衰减全反射红外光谱和扫描电子显微镜对接枝后的聚丙烯纤维基体的表面化学组成和形貌结构进行表征,结果表明,AMPS单体被成功接枝到PP纤维上.当改性后聚丙烯纤维的接枝率为22.8％时,改性后聚丙烯纤维滤嘴对烟气的过滤效果比改性前明显提高,烟气中的总粒相物比未改性滤嘴降低了30.5％,焦油及烟碱含量分别降低43.2％和31.7％.
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