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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 271 - 278 (8page)
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초록· 키워드
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Polyurethane elastomers (PUEs) were synthesized using trans-1,4-bis(isocyanatomethyl) cyclohexane (1,4- H6XDI), poly(oxytetramethylene) glycol, 1,4-butanediol (BD), and 1,1,1-trimethylol propane (TMP). To control the molecular aggregation state and mechanical properties of these PUEs, hard segment contents of 20 and 30 wt% and BD/TMP ratios of 10/0 and 8/2 were chosen. Differential scanning calorimetry and small-angle X-ray scattering measurements revealed that the degree of microphase separation increased with an increase in both hard segment content and BD ratio. The Young's modulus and strain at break of the 1,4-H6XDI-based PUE were 6-20 MPa and 5-15, respectively. Incorporation of 20% TMP as a cross-linking agent into BD increased the melting temperature of the hard segment chains, that is, heat resistance, and decreased the Young's modulus. This could be due to the low density of the physical cross-linking network and the dispersion of hard segment chains in the soft segment matrix in the PUE in the presence of 20% TMP.
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참고문헌 (19)
참고문헌 신청
Z. S. Petrovic / 1991 / Polyurethane elastomers / Prog. Polym. Sci 16:695
Z. S. Petrovic / 1985 / Study of the effect of soft segment length and concentration on properties of polyetherurethanes. I. The effect on physical and morphological properties / Rubber Chem. Technol 58:685
Z. S. Petrovic / 1985 / Study of the effect of soft segment length and concentration on properties of polyetherurethanes. I. The effect on physical and morphological properties / Rubber Chem. Technol 58:701
K. Kojio / 2004 / Highly softened polyurethane elastomer synthesized with novel 1,2-bis(isocyanate)ethoxyethane / Macromolecules 37:3287
K. Kojio / 2007 / Microphase-separated structure and mechanical properties of norbornane diisocyanate-based polyurethanes / Polymer 48:997
Z. S. Petrovic / 1985 / Study of the effect of soft segment length and concentration on properties of polyetherurethanes. I. The effect on physical and morphological properties / Rubber Chem. Technol 58:685
Z. S. Petrovic / 1985 / Study of the effect of soft segment length and concentration on properties of polyetherurethanes. I. The effect on physical and morphological properties / Rubber Chem. Technol 58:701
K. Kojio / 2004 / Highly softened polyurethane elastomer synthesized with novel 1,2-bis(isocyanate)ethoxyethane / Macromolecules 37:3287
K. Kojio / 2007 / Microphase-separated structure and mechanical properties of norbornane diisocyanate-based polyurethanes / Polymer 48:997
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