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http://dx.doi.org/10.12772/TSE.2018.55.343

Investigation on Alkali Hydrolysis of PET/co-PET Ultra-microfiber  

Lee, Ji Eun (Department of Organic Material Science and Engineering, Pusan National University)
Kim, Min Seok (Department of Organic Material Science and Engineering, Pusan National University)
Kim, Min Gu (Department of Organic Material Science and Engineering, Pusan National University)
Ko, Seongik (R&D Institute, Jeongsan International Co., Ltd.)
Jung, Dae Ho (R&D Institute, Jeongsan International Co., Ltd.)
Ko, Jae Wang (Korea Institute of Footwear and Leather Technology)
Lee, Seung Geol (Department of Organic Material Science and Engineering, Pusan National University)
Publication Information
Textile Science and Engineering / v.55, no.5, 2018 , pp. 343-348 More about this Journal
Abstract
Artificial leather has been developed as a substitute for natural leather because of the high demand for high-quality products in automobile interiors and the living leather market. Artificial leather is generally manufactured using microfiber nonwoven fabric. In this study, we analyzed the weight loss behavior of PET/co-PET ultra-microfiber by alkali hydrolysis according to NaOH concentration (10-30% o.w.f.), treatment time (5-60 mins), and treatment temperature ($80-120^{\circ}C$) by scanning electron microscopy (SEM), differential scanning calorimeter (DSC), and mechanical analysis. We found that the optimum condition for alkali hydrolysis is 25% NaOH o.w.f. aqueous solution with a treatment time of 30 min at $100^{\circ}C$.
Keywords
ultra-microfiber; sea-island PET; alkali hydrolysis; weight reduction; polyester suede;
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