热塑性聚氨酯/特氟龙无定形氟聚物超疏水纳米纤维膜制备及其性能

doi:10.13475/j.fzxb.20210201807

纺织学报 ›› 2021, Vol. 42 ›› Issue (12): 42-42.doi: 10.13475/j.fzxb.20210201807

热塑性聚氨酯/特氟龙无定形氟聚物超疏水纳米纤维膜制备及其性能

许仕林¹^,², 杨世玉³, 张亚茹¹^,², 胡柳¹^,², 胡毅¹^,²()

1.浙江理工大学先进纺织材料与制备技术教育部重点实验室, 浙江杭州 310018
2.浙江理工大学生态染整技术教育部工程研究中心, 浙江杭州 310018
3.浙江技立新材料股份有限公司, 浙江绍兴 312030

收稿日期:2021-02-05 修回日期:2021-09-07 出版日期:2021-12-15 发布日期:2021-12-29
通讯作者: 胡毅
作者简介:许仕林(2000—),男。主要研究方向为疏水膜的制备及应用。
基金资助:
浙江省自然科学基金项目(LY21E030023);浙江理工大学基本科研业务费专项资金资助项目(2020Y001);浙江理工大学绍兴柯桥研究院预研基金项目(KYY2021006Y)

Preparation and properties of thermoplastic polyurethane/tefluororone amorphous fluoropolymer superhydrophobic nanofiber membranes

XU Shilin¹^,², YANG Shiyu³, ZHANG Yaru¹^,², HU Liu¹^,², HU Yi¹^,²()

1. Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. Engineering Research Center for Eco-Dying and Finishing of Textiles,Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
3. Zhejiang Technology Lixin Materials Co., Ltd., Shaoxing, Zhejiang 312030, China

Received:2021-02-05 Revised:2021-09-07 Published:2021-12-15 Online:2021-12-29
Contact: HU Yi

摘要/Abstract

摘要：

针对纳米纤维膜力学性能低和疏水性较差的问题,首先采用静电纺丝法制备热塑性聚氨酯(TPU)纳米纤维膜,然后通过浸渍特氟龙无定形氟聚物(AF)溶液获得TPU/特氟龙AF超疏水纳米纤维膜,借助扫描电子显微镜、电子万能试验仪、视频接触角张力仪等探究了浸渍质量分数、浸渍时间对纳米纤维膜疏水性及力学性能的影响。结果表明:当特氟龙AF溶液质量分数为6%时,该纳米纤维膜水接触角大于150°,油接触角小于3°,展现出超疏水性;该纳米纤维膜的力学强度不受浸渍的影响,弹性模量可达到5.09 MPa,在过滤介质、生物医学领域等具有良好的潜在应用价值。

关键词: 静电纺丝, 热塑性聚氨酯, 特氟龙无定形氟聚物, 超疏水纳米纤维, 自清洁材料, 过滤材料

Abstract:

Aiming at the problems of low mechanical properties and poor-hydrophobicity of nanofiber membrane, thermoplastic polyurethane (TPU) nanofiber membrane was prepared by electrospinning,and the TPU/tefluororone amorphous fluoropolymer (Teflon AF) superhydrophobic nanofiber membrane was obtained by impregnating in Teflon AF solution. The influence of immersion concentration and dipping time on the hydrophobicity and mechanical properties of the nanofiber membranes were analyzed by scanning electron microscope, electronic universal tester, and video contact angle tensiometer. The results show that when the mass fraction of Teflon AF is increased to 6%, the water contact angle of the nanofiber membrane reaches 150°, and the oil contact angle becomes lower than 3°, showing a superhydrophobicity. The mechanical strength of the nanofiber membrane were not affected by the impregnation, and the modulus of elasticity displayed an increase to 5.09 Pa. The nanofiber membrane implies good potential application value in filter media and biomedical fields.

Key words: electrospinning, thermoplastic polyurethane, tefluororone amorphous fluoropolymer, superhydrophobic nanofiber, self-cleaning material, filter material

中图分类号:

TQ340.64

许仕林, 杨世玉, 张亚茹, 胡柳, 胡毅. 热塑性聚氨酯/特氟龙无定形氟聚物超疏水纳米纤维膜制备及其性能[J]. 纺织学报, 2021, 42(12): 42-42.

XU Shilin, YANG Shiyu, ZHANG Yaru, HU Liu, HU Yi. Preparation and properties of thermoplastic polyurethane/tefluororone amorphous fluoropolymer superhydrophobic nanofiber membranes[J]. Journal of Textile Research, 2021, 42(12): 42-42.

图/表 11

表1

图1

表2

表3

2种代表性液体表面张力"

液体	γ_L/(mJ·m^-1)	$γ L D$ /(mJ·m^-1)	$γ L p$ /(mJ·m^-1)	性质
蒸馏水	72.8	21.8	51	极性
二碘甲烷	50.8	50.8	0	非极性

表3

图2

图3

图4

图5

图6

图7

图8

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样品编号	特氟龙AF溶液质量分数/%	浸渍时间/h
1^#	0.0	0
2^#	2.0	2
3^#	6.0	2
4^#	10.0	2
5^#	2.0	6
6^#	6.0	6
7^#	10.0	6
8^#	2.0	12
9^#	6.0	12
10^#	10.0	12

样品编号	水接触角	水滚动角	油接触角
1^#	38.6	—	1.3
2^#	126.9	6.0	1.2
3^#	136.0	4.0	1.3
4^#	141.6	4.0	2.2
5^#	140.5	5.0	1.5
6^#	146.0	5.0	1.6
7^#	150.2	4.0	1.7
8^#	150.4	4.0	1.4
9^#	150.5	4.0	1.3
10^#	156.5	4.0	1.3

热塑性聚氨酯/特氟龙无定形氟聚物超疏水纳米纤维膜制备及其性能

Preparation and properties of thermoplastic polyurethane/tefluororone amorphous fluoropolymer superhydrophobic nanofiber membranes

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