TDI as main isocyanate, IPDI as end-capping reagent, waterborne polyurethane emulsions (WPUs) surface-sizing agent have been obtained. The properties of WPUs and papers sized by WPUs with different DMPA content, different NCO/OH molar ratio and nNCO(TDI)/nNCO(IPDI) are systematically examined. The results show that WPUs are new kinds of surface sizing agents with good properties. The water resistance, surface gloss and smoothness of papers sized by WPUs have dramatically increased. The folding endurance, tearing resistance and tensile strength of WPU sized papers are observed to increase obviously.
机构:
Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea
Jhon, YK
;
Cheong, IW
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Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea
Cheong, IW
;
Kim, JH
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机构:
Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea
机构:
Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea
Jhon, YK
;
Cheong, IW
论文数: 0引用数: 0
h-index: 0
机构:
Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea
Cheong, IW
;
Kim, JH
论文数: 0引用数: 0
h-index: 0
机构:
Yonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South KoreaYonsei Univ, Dept Chem Engn, Nanosphere Proc & Technol Lab, Seodaemoon Ku, Seoul 120749, South Korea