One-step, low-cost and environmentally friendly method to prepare superhydrophilic polyester fabric for oil-water separation
One-step, low-cost and environmentally friendly method to prepare superhydrophilic polyester fabric for oil-water separation
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DOI：
10.1016/j.surfcoat.2023.130198
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发表时间：
2024-01
影响因子：
5.4
通讯作者：
Junyin Cheng;Peng Wang;Yujia Zhang;Xueyuan Zhang;Tonghua Zhang;Guanhui Wang;Lei Chen
中科院分区：
文献类型：
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作者：
Junyin Cheng;Peng Wang;Yujia Zhang;Xueyuan Zhang;Tonghua Zhang;Guanhui Wang;Lei Chen
涤纶(PET)织物具有优异的力学性能、热稳定性和耐腐蚀性，是目前世界上生产和使用最广泛的合成纤维。然而，涤纶织物的亲水性和吸湿性较差，限制了其应用。本文以单宁酸(TA)和3-氨基丙基三乙氧基硅烷(APTES)为原料，采用简单高效的一步法在涤纶织物表面制备TA-APTES纳米涂层，以获得超亲水性能。对改性涤纶织物的表面形态、微观结构和涂层耐久性进行了研究。结果表明，在最佳反应条件下，改性织物表面的水接触角为0°，经800次摩擦或20次洗涤后仍保持超亲水性。改性后的涤纶织物具有优异的透气性、染色性能和抗紫外线(UV)性能，表明其在服装行业具有很大的潜力。对油水混合物具有较高的分离效率(98.98%)和较高的水通量(6705.53×L·m−·h−1)。对水包油乳状液的分离效率为97.64%，水通量为5968.45×L·m−2·h−1。此外，改性后的涤纶织物具有良好的化学稳定性，可以在恶劣的环境中高效地使用。
Polyester (PET) fabric is currently the world's most produced and widely used synthetic fiber due to its excellent mechanical properties, thermal stability and corrosion resistance. However, the poor hydrophilicity and hygroscopicity of PET fabric limit its application. In this paper, based on tannic acid (TA) and 3-aminopropyltriethoxysilane (APTES), a simple and efficient one-step method was used to construct TA-APTES nanoparticle coating on the surface of PET fabric to obtain superhydrophilicity. The surface morphology, microstructure and coating durability of the modified PET fabric were investigated. The results showed that under the optimal reaction conditions, the water contact angle (CA) of the modified fabric surface was 0°, which remained superhydrophilic after 800 times of rubbing or 20 times of washing. The modified PET fabric exhibited exceptional breathability, dyeing properties, and ultraviolet (UV) resistance, suggesting its high potential in the apparel industry. It could separate the oil-water mixture with high separation efficiency (98.98 %) and water flux (6705.53 L·m−2·h−1). The separation efficiency (97.64 %) and water flux (5968.45 L·m−2·h−1) for separating oil-in-water emulsions were satisfactory. Moreover, the modified PET fabric exhibited excellent chemical stability and can perform efficiently in harsh environment.