纺织学报 ›› 2020, Vol. 41 ›› Issue (02): 26-32.doi: 10.13475/j.fzxb.20190301507

• 纤维材料 • 上一篇    下一篇

聚丙烯/聚酯双组分微纳米纤维熔喷非织造材料制备及其性能

甄琪1, 张恒2(), 朱斐超3, 史建宏4, 刘雍5, 张一风1   

  1. 1.中原工学院 服装学院, 河南 郑州 451191
    2.中原工学院 纺织学院, 河南 郑州 451191
    3.浙江理工大学纺织科学与工程学院(国际丝绸学院), 浙江 杭州 310018
    4.苏州多瑈新材料科技有限公司,江苏 苏州 215600
    5.天津工业大学 纺织科学与工程学院, 天津 300387
  • 收稿日期:2019-03-04 修回日期:2019-11-24 出版日期:2020-02-15 发布日期:2020-02-21
  • 通讯作者: 张恒
  • 作者简介:甄琪(1989—),女,硕士生。主要研究方向为纤维材料的功能性结构设计及应用。
  • 基金资助:
    国家重点研发计划资助项目(2017YFB0309100);中国国家留学基金项目(201808410565);河南省高等学校重点科研项目(20A540001);纺织服装产业河南省协同创新中心资助项目(2020-CYY-003);中原工学院资助项目(K2018QN011);中原工学院资助项目(2018XQG04)

Fabrication and properties of polypropylene/polyester bicomponent micro-nanofiber webs via melt blowing process

ZHEN Qi1, ZHANG Heng2(), ZHU Feichao3, SHI Jianhong4, LIU Yong5, ZHANG Yifeng1   

  1. 1. School of Clothing, Zhongyuan University of Technology, Zhengzhou, Henan 451191, China
    2. School of Textile, Zhongyuan University of Technology, Zhengzhou, Henan 451191, China
    3. College of Textile Science and Engineering & International Institute of Silk, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    4. Suzhou Doro New Material Technology Co., Ltd., Suzhou, Jiangsu 215600, China
    5. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
  • Received:2019-03-04 Revised:2019-11-24 Online:2020-02-15 Published:2020-02-21
  • Contact: ZHANG Heng

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摘要：

针对聚丙烯(PP)超细纤维材料韧性不足的问题,以聚酯(PET)和PP为原料,采用共混熔喷法制备了PP/PET双组分微纳米纤维熔喷非织造材料,研究了PP/PET双组分聚合物熔体的流动指数和热性能,并对制备样品的形貌特征和柔韧性进行分析。结果表明:样品形貌为典型的熔喷非织造材料结构特征,细纤维与粗纤维在水平方向上交错排列形成叠合形态;且随PET质量分数从8% 增大到15%,纤维的平均直径从5.52 μm逐渐降低到3.61 μm;在双组分纤维内,PET与PP之间有清晰相界面,且PET以直径为10~100 nm的微纤形式存在;样品的韧性得分随着PET质量分数的提高从29.91增到35.20。

关键词: 熔喷非织造材料, 微纳米纤维, 柔韧性, 聚丙烯, 聚酯

Abstract:

In order to improve the flexibility of pure polypropylene (PP) microfiber materials, polypropylene/polyester (PP/PET) bi-component micro-nanofibers were prepared by melt-blown blending processing using PET and PP chips. The melt flowing index and thermal properties of the materials were studied, and the morphological characteristics and flexibility of the samples were analyzed experimentally. The sample morphology shows a typical melt-blown fiber webs structure, and the fine and coarse fibers overlap in the horizontal direction forming a layer-by-layer morphology. Besides, the average fiber diameter decreases from 5.52 μm to 3.61 μm when the PET mass ratio increases from 8% to 15%. A clear phase interface is observed between PET and PP components in the bi-component fiber and PET exists in the form of fibers with diameters ranging from 10-100 nm. Furthermore, the flexibility score of the samples increases from 29.91 to 35.20 as PET content increases.

Key words: melt blowing nonwoven, micro-nano fiber, flexibility, polypropylene, polyester

中图分类号: 

  • TS176

表1

样品制备方案"

实验
编号		 PET质量
分数/%		 PP质
量分数/%		 实验
编号		 PET质量
分数/%		 PP质量
分数/%
1# 0 100 6# 10 90
2# 5 95 7# 10 90
3# 8 92 8# 12 88
4# 10 90 9# 15 85
5# 10 90

图1

熔喷样品制备工艺流程"

图2

聚合物熔体流动指数随温度的变化曲线"

图3

PP/PET共混物的DSC曲线"

表2

样品特征参数测试结果"

样品
编号		 平均厚度/
mm		 面密度/
(g·m-2)		 孔隙率/
%
1# 0.554 63.49 87.41
2# 0.556 64.09 87.65
3# 0.559 64.73 87.78
4# 0.611 67.05 88.53
5# 0.327 33.52 89.29
6# 0.283 23.14 91.46
7# 0.261 16.42 93.43
8# 0.560 65.01 87.99
9# 0.562 65.45 88.12

图4

PP/PET双组分微纳米纤维的横截面形貌电镜照片"

图5

PP/PET双组分微纳米纤维网的表面形貌电镜照片"

图6

PP/PET双组分微纳米纤维的平均纤维直径与PET质量分数的关系曲线"

图7

韧性得分和柔性得分与PET质量分数的关系"

图8

韧性得分和柔性得分与面密度的关系曲线"

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