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Development of Synthetic Sizing Agent Using Recycling Polyethylene Terephthalate and its Sizing Efficiency (Part 2) - Sizing efficiency of modified PET -  

Park, Jae-Seok (Dept. of Forest Product & Biotechnology, Kookmin University)
Kim, Hyoung-Jin (Dept. of Forest Product & Biotechnology, Kookmin University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.42, no.2, 2010 , pp. 95-101 More about this Journal
Abstract
For the development of higher-sizing performance of paper, a sizing agent using recycled PET was synthesised. Polyester resin was extracted from wasted PET by subcritical hydrolysis and finally modified to synthetic sizing agent by mixing water-disperse PET with triphenyl phosphite(TPP). The modified PET was considered as an internal sizing agent in different wet-end papermaking conditions. The optimum condition in sizing efficiency was obtained in initial pH of 6.5 in case of rosin+alum system, and 7.5 in case of rosin+alum+PET system, respectively, and in addition amount of PET 3%. The sizing efficiency was also closely related according to the fiber properties of wet-end slurry, such as virgin fibres from UKP and recycled fibres from KOCC. The application of modified PET was good in strength improvement of paper, specially in tensile strength.
Keywords
modified polyethylene terephthalate(PET); internal sizing; triphenyl phosphite(TPP); neutral sizing system;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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