纺织学报 ›› 2016, Vol. 37 ›› Issue (10): 13-18.

• 纤维材料 • 上一篇    下一篇

熔融静电纺聚丙烯纤维的亲水改性

  

  • 收稿日期:2016-04-01 修回日期:2016-06-16 出版日期:2016-10-15 发布日期:2016-10-31

Hydrophilic modification of polypropylene fibers prepared by melt electrospinning

  • Received:2016-04-01 Revised:2016-06-16 Online:2016-10-15 Published:2016-10-31

摘要:

为对静电纺聚丙烯纤维进行亲水改性,采用表面活性剂吐温20,通过熔融微螺杆挤出机对等规聚丙烯进行熔融共混亲水改性,并通过静电纺丝的方法制备了聚丙烯纤维。通过傅里叶变换红外光谱分析、X射线光电子能谱分析和静态接触角测试对表面活性剂改性聚丙烯纤维的表面化学性质进行了表征,并使用差示扫描量热法对静电纺聚丙烯纤维进行了热力学性能测试。红外图谱显示表面活性剂吐温20已与聚丙烯共混成功,且改性后的聚丙烯纤维在表面活性剂吐温20添加量达到3%之后,静态水接触角明显降低,添加量达到5%时,接触角瞬间为零,展现出极好的吸湿性。X射线光电子能谱分析结果表明,表面活性剂吐温20富集在聚丙烯纤维的表面。

关键词: 聚丙烯, 熔融共混, 亲水改性, 静电纺

Abstract:

For the hydrophilic modification of isotactic polypropylene (PP), PP/TWEEN20 blends were mixed via a co-rotating twin screw microcompounder, then the blends were electrospun to fibers. The PP/TWEEN20 electrospun fibers were performed by Attenuated Total Reflection Fourier-Transform Infrared (ATR FT-IR) Spectroscopy, X-ray photoelectron spectroscopy (XPS) and Contact Angle Measurements. The thermodynamics of electrospun fibers was measured by Differential Scanning Calorimetry (DSC) analysis. FT-IR spectrums indicated PP had been blended with surfactant TWEEN20. After blending with surfactant TWEEN20, the contact angle of the electropsun fibers was reduced considerably especially when the load of surfactant TWEEN20 was up to 3%. The electropsun fibers exhibited excellent hygroscopicity, whose contact angle was zore, even when the load was 5%. XPS results demonstrated substantial enrichment of the surfactant TWEEN20 segments on the surfaces.

Key words: polypropylene, melt blending, hydrophilic modification, melt electrospinning

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