水性多支磺化木质素基两亲聚氨酯的合成及其在织物涂料中的应用

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-05-11 DOI:10.1016/j.porgcoat.2025.109372

Longhai Yi, Sheng Dai, Ajiao Zhao, Hua Qiu, Kunlin Chen

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引用次数: 0

摘要

纺织品在户外使用时经常受到各种具有挑战性的环境。为了提高纺织品的性能和使用寿命，本研究提出了一种基于水性多支磺化木质素基两亲聚氨酯的柔性织物涂料。该涂层采用特殊设计的全氟醇扩链剂，以及胆碱磷酸乙二醇和生物质材料木质素作为附加扩链剂集成到聚氨酯侧链中。通过引入不同分子量的聚乙二醇，探讨聚氨酯亲水性软段聚合程度对涂料防水透湿性能的影响。结果表明，加入聚乙二醇-1000作为软段可以有效地平衡涂层的疏水性和透气透湿性能。进一步研究了磺化木质素含量对涂料抗紫外线性能的影响。磺化木质素含量达到6 wt%时，涂层织物表现出优异的紫外线屏蔽能力。此外，由于聚氨酯的两性离子侧链和末端磺化木质素，织物涂层表现出优异的抗菌性能，对金黄色葡萄球菌和大肠杆菌的抑制率超过99.9%。该织物涂层适用于户外服装、防护装备、户外帐篷等领域。

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Synthesis of waterborne multi-branched sulfonated lignin-based amphiphilic polyurethane and its application in fabric coatings

Textiles often subjected to a variety of challenging environments during outdoor use. To improve the performance and lifespan of textiles, this study presents the development of a flexible fabric coating based on waterborne multi-branched sulfonated lignin-based amphiphilic polyurethane. The coating incorporates a specially designed perfluorinated alcohol chain extender, along with choline phosphate glycol and biomass material lignin as additional chain extenders integrated into the polyurethane side chains. The introduction of polyethylene glycol with varying molecular weights was conducted to explore how polymerization degree of the hydrophilic soft segment in polyurethane influences the coating's waterproof and moisture-permeable properties. The findings indicated that incorporating polyethylene glycol-1000 as the soft segment could effectively balance the hydrophobic and breathable moisture-permeable properties of the coating. The effect of sulfonated lignin content on the UV resistance of the coating was further investigated. At a sulfonated lignin content reached 6 wt%, the coated fabric demonstrated exceptional UV shielding capabilities. Moreover, due to the amphoteric ionic side chain and terminated sulfonated lignin of polyurethane, the fabric coating exhibited excellent antibacterial properties, with an inhibition rate exceeding 99.9 % against Staphylococcus aureus and Escherichia coli. This fabric coating is suitable for use in outdoor clothing, protective gear, outdoor tents, and other fields.

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.