| Pulsed UV Laser Modification of Polyester Textile Materials:Effect on Wettability |
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| 作者姓名： | 黄志聪 陈光 杨国荣 柳启瑞 |
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| 作者单位： | Wilson Wong，Kwong Chan，Kwok Wing YeungInstitute of Textiles and Clothing，The Hong Kong Polytechnic UniversityKai Shui LauDepartment of Applied Physics，The Hong Kong Polytechnic University |
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| 摘 要： | There has recently been great interest in ablative photodecomposition(APD), notably in pulsed UV laser treatment on polymers, for modification of physical and chemical properties, such as dyeability, printability, adhesion, Iuster and many more. Very little attention was focused, however, on the property of wetting behaviour,which is one of the most fundamental properties in affecting polymer science. Poly(ethylene terephthalate) (PET) fibers drawn to two different draw ratios and under two temperatures, and three white knitted polyester fabrics made of 100% PET fibre were used to investigate their wetting behaviour due to excimer laser treatment.Experiments like water contact angle measurement, vertical drop test and moisture regain were conducted upon samples and all results give the same conclusion that laser treatment increases the hydrophobicity of all samples tested. Scanning electron microscope (SEM) observation reveals how the morphological modification of polymers by laser treatment is correlate
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Pulsed UV Laser Modification of Polyester Textile Materials: Effect on Wettability |
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| Wilson Wong,Kwong Chan,Kwok Wing YeungInstitute of Textiles and Clothing,The Hong Kong Polytechnic UniversityKai Shui Lau.Pulsed UV Laser Modification of Polyester Textile Materials:Effect on Wettability[J].Journal of Donghua University,1999(3). |
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| Authors: | Wilson Wong Kwong Chan Kwok Wing YeungInstitute of Textiles and Clothing The Hong Kong Polytechnic UniversityKai Shui Lau |
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| Institution: | Wilson Wong,Kwong Chan,Kwok Wing YeungInstitute of Textiles and Clothing,The Hong Kong Polytechnic UniversityKai Shui LauDepartment of Applied Physics,The Hong Kong Polytechnic University |
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| Abstract: | There has recently been great interest in ablative photo-decomposition (APD), notably in pulsed UV laser treatment on polymers, for modification of physical and chemical properties, such as dyeability, printability, adhesion, luster and many more. Very little attention was focused, however, on the property of wetting behaviour, which is one of the most fundamental properties in affecting polymer science. Poly (ethylene terephthalate) (PET) fibers drawn to two different draw ratios and under two temperatures, and three white knitted polyester fabrics made of 100% PET fibre were used to investigate their wetting behaviour due to excimer laser treatment. Experiments like water contact angle measurement, vertical drop test and moisture regain were conducted upon samples and all results give the same conclusion that laser treatment increases the hydrophobiclty of all samples tested. Scanning electron microscope (SEM) observation reveals how the morphological modification of polymers by laser treatment is correlated with the wettabllity of the samples. |
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| Keywords: | polyester wettability modification pulsed UV laser SEM |
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