Study on the Gas Grafting Efficiency of Paper According to Carbon Number of Fatty Acid Chloride

초록

Hydrophobization of cellulose by grafting with fatty acid chlorides varies depending on the fatty acid carbon number (i.e., the length of the alkyl chain). In this study, we investigated the effect of fatty acid chain length on cellulose hydrophobization by gas grafting using fatty acid chlorides with carbon numbers ranging from C6 to C16. In addition, hydrophobization efficiencies were analyzed in relation to single and combination treatments using the different fatty acid chlorides. We discovered that paper hydrophobicity increased as the fatty acid carbon number increased during gas grafting. With the exception of dual treatment with C10 and C16, we found that dual treatment with fatty acid chlorides did not improve hydrophobization efficiency compared to single treatment during gas grafting. In conclusion, it was determined that carbon number of the fatty acid is a main factor for gas grafting efficiency. Further, dual treatment with C10 and C16 fatty acid chlorides improved hydrophobization efficiency slightly more than that found from single treatment with C16 fatty acid chloride, but not at a sufficient level to recommend as an improved approach. © 2020 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

키워드