An effective and sustainable strategy to improve the stability and adhesion of thermoplastic starch to polyester/cotton yarns via the mixture of gellan gum

IF 7.7 1区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

International Journal of Biological Macromolecules Pub Date : 2025-04-30 DOI:10.1016/j.ijbiomac.2025.143727

Yixuan He , Suhao Fan , Xinyi Han , Shengyi Yuan , Yijie Zhu , Xiang Li , Wangbing Li , Ying Li , Yingnan Ma , Kang Zhang

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引用次数: 0

Abstract

Starch sizing agent had a low mechanical strength, poor stability, and weak adhesion to polyester fibers. In this study, corn starch/gellan gum composites (CS/GG) were used for sizing polyester/cotton blended yarns (P/C 80/20), and performance of sizing agents were investigated. The results showed that CS/GG composite films exhibited stronger tensile strength, more sustained inhibition long-term retrogradation of starch, better gas barrier, higher antioxidant activity, and lower water uptake compared to thermoplastic starch films. The CS/GG film, paste, and sizing at the weight ratio of 8: 2 had the superior tensile strength, viscosity stability, and adhesion to P/C 80/20, respectively. It was due to that gellan gum could form a strong hydrogen bond interaction with the hydroxyl group on starch, thereby increasing the crystallinity of the thermoplastic starch film. The rupture work of sized P/C 80/20 by CS/GG with 9: 1 and 8: 2 were 2931.3 mJ and 3024.0 mJ, respectively. CS/GG at the weight ratio of 9: 1 was more suitable for sizing P/C 80/20 than the 8: 2 in terms of cost.

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通过结冷胶混合物提高热塑性淀粉对涤纶/棉纱的稳定性和附着力的有效和可持续的策略

淀粉施胶剂机械强度低，稳定性差，与聚酯纤维的附着力弱。采用玉米淀粉/结冷胶复合材料（CS/GG）对涤棉混纺纱线（P/C 80/20）进行上浆，考察了浆料的性能。结果表明，与热塑性淀粉膜相比，CS/GG复合膜具有更强的抗拉强度、更持久的抑制淀粉长期降解、更好的气屏障、更高的抗氧化活性和更低的吸水率。重量比为8:2的CS/GG膜、浆料和浆料分别具有优异的抗拉强度、粘度稳定性和对P/C 80/20的附着力。这是由于结冷胶能与淀粉上的羟基形成强氢键相互作用，从而提高热塑性淀粉膜的结晶度。CS/GG对粒径为9:1和8:2的P/C 80/20试样的破裂功分别为2931.3 mJ和3024.0 mJ。从成本上看，9:1的CS/GG比8:2的CS/GG更适合于P/ c80 /20的施胶。

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来源期刊

International Journal of Biological Macromolecules 生物-生化与分子生物学

CiteScore

13.70

自引率

9.80%

发文量

2728

审稿时长

64 days

期刊介绍： The International Journal of Biological Macromolecules is a well-established international journal dedicated to research on the chemical and biological aspects of natural macromolecules. Focusing on proteins, macromolecular carbohydrates, glycoproteins, proteoglycans, lignins, biological poly-acids, and nucleic acids, the journal presents the latest findings in molecular structure, properties, biological activities, interactions, modifications, and functional properties. Papers must offer new and novel insights, encompassing related model systems, structural conformational studies, theoretical developments, and analytical techniques. Each paper is required to primarily focus on at least one named biological macromolecule, reflected in the title, abstract, and text.