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首页> 外文期刊>Journal of Applied Polymer Science >Collagen-Immobilized Poly(ethylene terephthalate)-g-Poly(vinyl alcohol) Fibers Prepared by Electron-Beam Co-Irradiation
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Collagen-Immobilized Poly(ethylene terephthalate)-g-Poly(vinyl alcohol) Fibers Prepared by Electron-Beam Co-Irradiation

机译：电子束共辐照固定化胶原蛋白的聚对苯二甲酸乙二醇酯-g-聚乙烯醇纤维

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摘要

Vinyl acetate was grafted onto poly(ethylene terephthalate) (PET) fibers under electron-beam co-irradiation. Then, the grafted products were hydrolyzed under HCl solution to obtain PET-g-poly(vinyl alcohol) (PVA) fibers. Afterward, to impart superior hydrophilicity and skin care, collagen was immobilized onto PET-g-PVA fibers with glutaraldehyde. The modified fabric was characterized in terms of moisture regain, wettability, and evaporation rate [Ev (%/h)]. The degree of alcoholysis of the grafting product was more than 90% in a 10% HCl solution at 100°C for 4 h, and its moisture regain was 1.4%. The modified PET fabric with collagen showed a shorter drip diffusion time and a higher wicking height than the unmodified PET and PET-g-PVA fabric before and after multiple washings. The evaporation ratio and Ev of the collagen-immobilized PET fibers were far below those of the virgin PET fibers. The chemical structure, surface morphology, and element content of the product were characterized by attenuated total reflectance- Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. This further certified that the collagen-immobilized PET-g-PVA fiber was successfully prepared by the previous procedure. Furthermore, the PET- PVA-collagen fabric was capable of withstanding multiple washing cycles.
机译：在电子束共辐照下，将乙酸乙烯酯接枝到聚对苯二甲酸乙二酯（PET）纤维上。然后，将接枝产物在HCl溶液中水解以获得PET-g-聚乙烯醇（PVA）纤维。然后，为了赋予优异的亲水性和皮肤护理，将胶原蛋白与戊二醛固定在PET-g-PVA纤维上。改性织物的特征在于回潮率，润湿性和蒸发速率[Ev（％/ h）]。在10％的HCl溶液中于100°C加热4小时，接枝产物的醇解度超过90％，回潮率为1.4％。与未经修饰的PET和PET-g-PVA织物在多次洗涤之前和之后相比，具有胶原的改性PET织物显示出更短的滴液扩散时间和更高的芯吸高度。胶原蛋白固定的PET纤维的蒸发率和Ev远低于原始PET纤维的蒸发率和Ev。通过衰减全反射-傅立叶变换红外光谱，扫描电子显微镜和X射线光电子能谱表征产物的化学结构，表面形态和元素含量。这进一步证明了通过前述步骤成功制备了胶原蛋白固定的PET-g-PVA纤维。此外，PET-PVA-胶原蛋白织物能够经受多次洗涤循环。

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