Effect of CaCl2 Surface Modification on the Durability of PA6/PU Fabrics

IF 2.2 4区工程技术 Q1 MATERIALS SCIENCE, TEXTILES

Fibers and Polymers Pub Date : 2025-03-18 DOI:10.1007/s12221-025-00887-3

Chuan Zhou, Yiming Wang, Huijia Wang, Xiaoqiang Shao, Ni Li

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引用次数: 0

Abstract

Polyamide6/polyurethane fabrics (PA6/PU) are the main materials for preparing various tents. To enhance the durability of PA6/PU fabrics exposed to sunlight for a long time, environmental-friendly, harmless to humans and low-cost CaCl₂ is chosen as the surface modification agent to etch PA6 fabric during processing tent fabrics in the paper. The properties which are relative to the fabric durability are controlled by the complexation modification of PA6 fabric with CaCl₂ ethanol solution. The results show that the roughness of PA6 fiber after CaCl₂ modification is increased from 75.686 to 0.207 μm and the warp peeling strength of PA6-CaCl₂/PU fabric comes to 5.8N which is 46.5% higher than that of original PA6/PU fabric. At the same time, the loss of tensile strength for PA6-CaCl₂/PU fabric is less than that of PA6/PU fabric during heat aging process. On the other hand, Ca²⁺ presents an obvious effect on UV-C, while PU coating presents notable effect on UV-A and UV-B. The UPF value of prepared PA6-CaCl₂/PU fabric increased to about 16 due to the PU coating and the fabric presents improved heat insulation when enduring sunlight irradiation. The durable PA6-CaCl₂/PU fabric shows a promising application as tent fabric in textile industry.

Graphical abstract

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CaCl2表面改性对PA6/PU织物耐久性的影响

聚酰胺/聚氨酯织物（PA6/PU）是制作各种帐篷的主要材料。为了提高PA6/PU织物长期暴露在阳光下的耐久性，本文在处理帐篷织物时，选用环保、对人体无害、成本低廉的CaCl2作为表面改性剂对PA6织物进行蚀刻处理。用CaCl2乙醇溶液对PA6织物进行络合改性，控制了与织物耐久性相关的性能。结果表明，经CaCl2改性后的PA6纤维粗糙度由75.686 μm提高到0.207 μm， PA6-CaCl2/PU织物的经纱剥离强度达到5.8N，比原PA6/PU织物提高了46.5%。同时，PA6- cacl2 /PU织物在热老化过程中的抗拉强度损失小于PA6/PU织物。另一方面，Ca2+对UV-C有明显的影响，而PU涂层对UV-A和UV-B有显著的影响。制备的PA6-CaCl2/PU织物由于有PU涂层，UPF值提高到16左右，在阳光照射下，织物的隔热性得到改善。耐用的PA6-CaCl2/PU织物在纺织工业中作为帐篷织物具有广阔的应用前景。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fibers and Polymers 工程技术-材料科学：纺织

CiteScore

3.90

自引率

8.00%

发文量

267

审稿时长

3.9 months

期刊介绍： -Chemistry of Fiber Materials, Polymer Reactions and Synthesis- Physical Properties of Fibers, Polymer Blends and Composites- Fiber Spinning and Textile Processing, Polymer Physics, Morphology- Colorants and Dyeing, Polymer Analysis and Characterization- Chemical Aftertreatment of Textiles, Polymer Processing and Rheology- Textile and Apparel Science, Functional Polymers