폴리에스테르-폴리아민 분산제의 합성 및 카본 분산 특성 (Synthesis of Polyester-Polyamine Dispersants and Their Carbon Dispersing Properties)

서지정보

· 발행기관 : 한국트라이볼로지학회
· 수록지 정보 : 한국트라이볼로지학회지 / 30권 / 4호 / 224 ~ 233페이지
· 저자명 : 손정매, 육정숙, 이상준, 김주현, 김남균, 신지훈, 김영운

초록

We prepared polyester-polyamines to improve the effect of carbon black dispersibility for use in thermaltransfer ink, and synthesized polymeric dispersing agents by two-step reactions. In the first step, we madepolyester by polycondensing 1,6-hexanediol and adipic acid. The resulting polymers had carboxylic acid, whichwas linked with polyamine via an acid-base reaction. We then characterized the polyester-polyamine structureby NMR spectroscopy and Fourier transform infrared spectroscopy (FT-IR). We also determined the basic characterizationssuch as total acid numbers (TAN) (5.0−67.5 mgKOH/g), hydroxyl values (27.1−67.5 mgKOH/g),and molar masses (Mn = 1.6−8.4 kg mol−1) for the polyester and total base numbers (TBN) (15.3−57.1mgKOH/g), hydroxyl values (33.0−79.8 mgKOH/g), and nitrogen contents (1.02−3.48%) for the polyesterpolyaminepolymers. We thus prepared thermal transfer ink using carbon blacks and the polyester-polyamine dispersingagents, and evaluated the resulting mixtures for printability, adhesive force, storage stability, ink appearance,ink gloss, and processability. These mixtures showed significant dispersibility for carbon black in the ink.
Thus, we concluded that the dispersibility of the polymeric materials depended on the polyamine structure andthe hydrophilicity-hydrophobicity distribution of the polymeric dispersants.

영어초록

We prepared polyester-polyamines to improve the effect of carbon black dispersibility for use in thermaltransfer ink, and synthesized polymeric dispersing agents by two-step reactions. In the first step, we madepolyester by polycondensing 1,6-hexanediol and adipic acid. The resulting polymers had carboxylic acid, whichwas linked with polyamine via an acid-base reaction. We then characterized the polyester-polyamine structureby NMR spectroscopy and Fourier transform infrared spectroscopy (FT-IR). We also determined the basic characterizationssuch as total acid numbers (TAN) (5.0−67.5 mgKOH/g), hydroxyl values (27.1−67.5 mgKOH/g),and molar masses (Mn = 1.6−8.4 kg mol−1) for the polyester and total base numbers (TBN) (15.3−57.1mgKOH/g), hydroxyl values (33.0−79.8 mgKOH/g), and nitrogen contents (1.02−3.48%) for the polyesterpolyaminepolymers. We thus prepared thermal transfer ink using carbon blacks and the polyester-polyamine dispersingagents, and evaluated the resulting mixtures for printability, adhesive force, storage stability, ink appearance,ink gloss, and processability. These mixtures showed significant dispersibility for carbon black in the ink.
Thus, we concluded that the dispersibility of the polymeric materials depended on the polyamine structure andthe hydrophilicity-hydrophobicity distribution of the polymeric dispersants.

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