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에테르화 및 에스테르화를 통한 표면사이징용 변성 전분의 제조
정영빈(Young Bin Jeong),이학래(Hak Lae Lee),윤혜정(Hye Jung Youn),지경락(Kyoung Rak Ji),김영석(Young Seok Kim) 한국펄프·종이공학회 2014 펄프.종이기술 Vol.46 No.6
An oxidized starch was modified for surface sizing via etherification and esterification. Propylene oxide (PO), sodium monochloroacetate (SMCA), and acrylonitrile (AN) were used as etherification, and vinyl acetate monomer (VAM), maleic anhydride (MA), fumaric acid (FA), and itaconic acid (ITA) were used for esterification. Esterification and etherification of starch decreased both Brookfield viscosity and Brabender viscosity substantially even though the solids level was increased by 2% from 14 to 16%. Surface sizing performance of starches in tensile strength, stiffness and compressive strength was improved by esterification and etherification of the oxidized starch. Especially, SMCA etherification was found to be the most effective modification method.