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<p>Traditional petroleum-based adhesives are widely used in textile finishing due to their strong bonding ability, but their high volatile organic compound (VOC) content and poor degradability restrict sustainable applications. In this paper, a novel bio-based adhesive (EGT) featuring intrinsic ultraviolet (UV) protection was developed through a biomimetic design inspired by mussel adhesion. The adhesive was synthesized by cross-linking epoxidized soybean oil (ESO) and glycerol (Gl) with tannic acid (TA), where polyphenolic catechol groups imparted strong interfacial bonding and UV-shielding capacity. The optimized formulation (<i>m</i><sub>ESO</sub>: <i>m</i><sub>Gl</sub>: <i>m</i><sub>TA</sub> = 1:1:1) with 7.69 wt% sodium carboxymethyl cellulose (CMC) produced a stable emulsion for 30 days, a mean particle size of 6.04 µm, and a viscosity of 5.54 mPa&#xa0;s. The resulting EGT film exhibited a water contact angle of 55.43° and a water absorption rate of 34.31%, enabling durable adhesion in fragrance finishing of cotton fabrics. Moreover, the EGT-finished fabric took on excellent UV protection (UPF = 56.32, T(UVA) = 3.26%) and exhibited superior softness and mechanical properties compared to conventional petroleum-based adhesives. Meanwhile, the fabric retained 2.83 mg/g of fragrance microcapsules after 20 washing cycles, with only slight reductions in whiteness and air permeability. This work highlights the dual functionality of EGT by combining eco-friendly adhesion with inherent UV resistance, offering a sustainable strategy for developing safe, protective, and high-performance finishing materials for outdoor clothing.</p>

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A Novel Tannic Acid-Derived Bio-Based Adhesive with Intrinsic Anti-Ultraviolet Performance for Sustainable Fragrance Finishing on Cotton Fabrics

  • 期刊论文

  • 发表日期：

    2026年1月22日

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  • Xinyu Li,
  • Mazen Khaled Alsahari,
  • Mingyan Sui,
  • Tingting Yang,
  • Yan Luo

摘要

Traditional petroleum-based adhesives are widely used in textile finishing due to their strong bonding ability, but their high volatile organic compound (VOC) content and poor degradability restrict sustainable applications. In this paper, a novel bio-based adhesive (EGT) featuring intrinsic ultraviolet (UV) protection was developed through a biomimetic design inspired by mussel adhesion. The adhesive was synthesized by cross-linking epoxidized soybean oil (ESO) and glycerol (Gl) with tannic acid (TA), where polyphenolic catechol groups imparted strong interfacial bonding and UV-shielding capacity. The optimized formulation (mESO: mGl: mTA = 1:1:1) with 7.69 wt% sodium carboxymethyl cellulose (CMC) produced a stable emulsion for 30 days, a mean particle size of 6.04 µm, and a viscosity of 5.54 mPa s. The resulting EGT film exhibited a water contact angle of 55.43° and a water absorption rate of 34.31%, enabling durable adhesion in fragrance finishing of cotton fabrics. Moreover, the EGT-finished fabric took on excellent UV protection (UPF = 56.32, T(UVA) = 3.26%) and exhibited superior softness and mechanical properties compared to conventional petroleum-based adhesives. Meanwhile, the fabric retained 2.83 mg/g of fragrance microcapsules after 20 washing cycles, with only slight reductions in whiteness and air permeability. This work highlights the dual functionality of EGT by combining eco-friendly adhesion with inherent UV resistance, offering a sustainable strategy for developing safe, protective, and high-performance finishing materials for outdoor clothing.