氩等离子体预处理纤维表面两步法制备聚丙烯螯合纤维

发布时间：2018-03-18 03:27

  本文选题：聚丙烯　切入点：氩等离子体　出处：《塑料》2017年05期 　论文类型：期刊论文

【摘要】：将聚丙烯(PP)纤维先在氩(Ar)气氛等离子体场下生成表面活性自由基,而且与空气中的氧生成过氧自由基,然后在加热的条件下引发单体丙烯酸(AA)进行接枝反应,再和三乙烯四胺(TETA)进行酰胺化反应,制备出了PP-g-AA-TETA螯合纤维。采用FT-IR、SEM和自制毛细管微压计等,考察了PP-g-AA-TETA螯合纤维表面特征官能团的归属、微观形貌和纤维的亲水性。结果表明:在PP纤维表面陆续接枝了AA和TETA,水接触角随胺化量的增大而减小,从87.4°(脱脂棉为基准)减少到74.8°。最佳等离子条件为:气氛压强15 Pa,功率30 W,时间3 min。最佳液相接枝AA的反应条件为:硫酸亚铁铵加入量0.0800 g/100m L,AA单体浓度30%,反应温度60℃。最佳酰胺化反应条件为:温度60℃、时间12 h。
[Abstract]:Polypropylene (PP) fibers were prepared to form surface-active radicals in argon nitride (Arg) atmosphere plasma field, and then superoxide radicals were formed with oxygen in air, and then the monomer acrylic acid (AAA) was grafted under heating conditions. The PP-g-AA-TETA chelating fiber was prepared by amidation reaction with triethylenetetramine tetra. The attribution of the characteristic functional groups on the surface of PP-g-AA-TETA chelating fiber was investigated by FT-IR SEM and self-made capillary microbarometer. The results showed that AA and TETAA were grafted on the surface of PP fiber, and the water contact angle decreased with the increase of amination amount. The optimum plasma conditions are as follows: atmosphere pressure 15 Pa, power 30 W, time 3 min. The optimum reaction conditions of liquid phase grafting AA are as follows: the amount of ammonium ferrous sulfate is 0.0800 g / 100 mL AA monomer concentration, the reaction temperature is 30. The optimum reaction conditions are as follows: 60 鈩，

本文编号：1627814