Xiao Shili, Xu Pengjun, Peng Qingyan, Chen Jiali, Huang Jiankang, Wang Faming, Noor Nuruzzaman
Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, Fujian, China.
Polymers (Basel). 2017 Dec 20;9(12):735. doi: 10.3390/polym9120735.
Poly(ethyleneterephthalate) (PET) is a multi-purpose and widely used synthetic polymer in many industrial fields because of its remarkable advantages such as low cost, light weight, high toughness and resistance to chemicals, and high abrasion resistance. However, PET suffers from poor dyeability due to its non-polar nature, benzene ring structure as well as high crystallinity. In this study, PET fabrics were firstly treated with an alkaline solution to produce carboxylic acid functional groups on the surface of the PET fabric, and then was modified by polyelectrolyte polymer through the electrostatic layer-by-layer self-assembly technology. The polyelectrolyte multilayer-deposited PET fabric was characterized using scanning electron microscopy SEM, contact angle, Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS). The dyeability of PET fabrics before and after surface modification was systematically investigated. It showed that the dye-uptake of the polyelectrolyte multilayer-deposited PET fabric has been enhanced compared to that of the pristine PET fabric. In addition, its dyeability is strongly dependent on the surface property of the polyelectrolyte multilayer-deposited PET fabric and the properties of dyestuffs.
聚对苯二甲酸乙二酯（PET）是一种多用途且在许多工业领域广泛使用的合成聚合物，因为它具有显著的优点，如成本低、重量轻、高韧性、耐化学性以及高耐磨性。然而，由于其非极性性质、苯环结构以及高结晶度，PET的染色性较差。在本研究中，首先用碱性溶液处理PET织物，以在PET织物表面产生羧酸官能团，然后通过静电层层自组装技术用聚电解质聚合物对其进行改性。使用扫描电子显微镜（SEM）、接触角、傅里叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）对聚电解质多层沉积的PET织物进行了表征。系统地研究了表面改性前后PET织物的染色性。结果表明，与原始PET织物相比，聚电解质多层沉积的PET织物的染料吸收率有所提高。此外，其染色性强烈依赖于聚电解质多层沉积的PET织物的表面性质和染料的性质。
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