纺织学报 ›› 2022, Vol. 43 ›› Issue (02): 183-188.doi: 10.13475/j.fzxb.20211103706

• 染整与化学品 • 上一篇    下一篇

全水基杂化型无氟防水剂制备及其在涤/棉织物防水整理中应用

马逸平1,2, 樊武厚1,2(), 吴晋川3, 蒲宗耀3   

  1. 1.四川省纺织科学研究院有限公司, 四川 成都 610083
    2.高技术有机纤维四川省重点实验室,四川 成都 610083
    3.四川益欣科技有限责任公司, 四川 成都 610083
  • 收稿日期:2021-11-05 修回日期:2021-11-17 出版日期:2022-02-15 发布日期:2022-03-15
  • 通讯作者: 樊武厚
  • 作者简介:马逸平(1994—),女,助理工程师,硕士。主要研究方向为无氟防水整理剂。
  • 基金资助:
    四川省省级科研院所科技成果转化项目(2020JDZH0004);四川省重点研发项目(22ZDYF3693)

Preparation and application of fully aqueous organic-inorganic hybrid fluorine-free water-repellant finishing agents

MA Yiping1,2, FAN Wuhou1,2(), WU Jinchuan3, PU Zongyao3   

  1. 1. Sichuan Textile Scientific Research Institute Co., Ltd., Chengdu, Sichuan 610083, China
    2. High-tech Organic Fibers Key Laboratory of Sichuan Province, Chengdu, Sichuan 610083, China
    3. Sichuan Yixin Technology Co., Ltd., Chengdu, Sichuan 610083, China
  • Received:2021-11-05 Revised:2021-11-17 Published:2022-02-15 Online:2022-03-15
  • Contact: FAN Wuhou

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摘要：

针对当前有机-无机杂化型无氟织物防水剂含的有机溶剂存在环境不友好的问题,创新性地将长碳链硅烷改性硅溶胶(H-NPs)乳液与聚硅氧烷改性水性聚氨酯(SiWPU)相结合,制备出一种全水基的杂化型无氟织物防水剂。重点研究了全水基杂化无氟防水剂中有机/无机组分比例及其用于涤/棉织物整理时焙烘温度和时间等因素的影响,通过扫描电子显微镜观察了涤/棉织物整理前后纤维表面的形貌变化,并考察了其在涤/棉织物防水整理中的应用性能。结果表明:疏水整理织物的水接触角随着H-NPs质量分数的增加而逐渐增大,并在H-NPs质量分数为27.5%时达到最大值(138 ± 2.0)°;在相同焙烘时间下,180 ℃焙烘的疏水整理织物相比150 ℃焙烘时具有更大的水接触角;同时,整理织物的水接触角随着焙烘时间增加逐渐增大,并在焙烘5 min时具有最大的水接触角;疏水整理织物的纤维表面可明显观察到微纳米尺度的凸起结构,验证了其微纳粗糙结构的存在。

关键词: 有机-无机杂化, 无氟防水剂, 水基, 涤/棉织物, 水性聚氨酯, 硅溶胶

Abstract:

In view of the problem that organic-inorganic hybrid fluorine-free water-repellant finishing agents are not environmental friendly due to organic solvent, the long-chain alkyl silane modified sol (H-NPs) emulsion and polysiloxane modified waterborne polyurethane(SiWPU) emulsion were combined to prepare fully aqueous organic-inorganic hybrid fluorine-free water-repellant finishing agents. The effects of organic/inorganic component ratio in organic-inorganic hybrid fluorine-free water-repellant finishing agents were studied, and the influences of baking time and temperature on the property of finished polyester/cotton fabric were also discussed in detail. Micro-nano rough structures on the surface of finished polyester/cotton fabric were observed by SEM, and its application performance was also investigated. The results reveal that the water contact angle on the surface of the finished fabric gradually increases with the increase of H-NPs mass fraction, reaching the maximum value of (138 ± 2.0)° when H-NPs mass fraction is 27.5%. For the same baking time, the finished fabric baked at 180 ℃ demonstrates a higher water contact angles compared with that baked at 150 ℃. Additionaly, the water contact angle of the finished fabric increases gradually with baking time, with the optimal baking time determined to be 5 min. The convex structure of micro/nano scale is also observed on the surface of finished fabric, significantly verifing the existence of micro/nano rough structure.

Key words: organic-inorganic hybrid, fluorine-free water-repellant finishing agents, fully aqueous, polyester/cotton fabric, waterborne polyurethane, silicon sol

中图分类号: 

  • TQ316.334

图1

SiWPU和IPDI的红外图谱"

图2

H-NPs、TEOS和HDTMS的红外图谱"

图3

SiWPU乳液的粒径分布图"

图4

H-NPs乳液的粒径分布图"

图5

H-NPs质量分数对整理织物水接触角的影响"

图6

焙烘时间和焙烘温度对整理织物水接触角的影响"

图7

原始织物,整理织物的水滴和接触角图片 注:a为原始织物表面水滴图片;b为原始织物表面接触角图片;c为整理织物表面水滴图片;d为整理织物表面水滴接触角图片。"

图8

原始织物和整理织物的电镜照片"

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