지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Calcium carbonate ($CaCO_3$) with 15~40 nm average diameter was compounded with polypropylene (PP) in a melted state to form composite materials. To enhance the dispersibility in PP, the surface of the $CaCO_3$ was coated with hydrophobic stearic acid (SA). The SA-coated $CaCO_3$ (SA-$CaCO_3$) showed hydrophobic nature, which resulted in rapid precipitation in water. When melt-compounded with PP, SA-$CaCO_3$ was uniformly distributed throughout the PP matrix, while the uncoated $CaCO_3$ formed aggregated structures in the PP. At up to 5 wt% of SA-$CaCO_3$ content, the composites showed well-dispersed structure, although some level of aggregation was observed in the composites with 10 wt% of SA-$CaCO_3$. The dispersibility improved with a repeated process of compounding. The melting and crystallization temperatures of PP increased with incorporation of $CaCO_3$. The enthalpy of the transitions also increased and the full-width of half maximum of the crystallization peak decreased. However, SA-coating did not produce additional effects on the crystallization behavior of PP. These results showed that the $CaCO_3$ acted as crystal nuclei.
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참고문헌 (12)
참고문헌 신청
G. R. Lomax / 1991 / Breathable, Waterproof Fabrics Explained / Textiles 20:12~16
A. Mukhopadhyay / 2008 / A Review on Designing the Waterproof Breathable Fabrics Part I: Fundamental Principles and Designing Aspects of Breathable Fabrics / J Ind Text 37:225~262
G. R. Lomax / 1985 / The Design of Waterproof, Water Vapourpermeable Fabrics / J Coated Fabrics 15:40~66
J. C. Tanner / 1979 / Breathability, Comfort and Gore-Tex Laminates / J Coated Fabrics 8:312~322
R. Shishoo / 1987 / Recent Developments in Breathable High Functional Fabrics / Nonwovens World :890~894
A. Mukhopadhyay / 2008 / A Review on Designing the Waterproof Breathable Fabrics Part I: Fundamental Principles and Designing Aspects of Breathable Fabrics / J Ind Text 37:225~262
G. R. Lomax / 1985 / The Design of Waterproof, Water Vapourpermeable Fabrics / J Coated Fabrics 15:40~66
J. C. Tanner / 1979 / Breathability, Comfort and Gore-Tex Laminates / J Coated Fabrics 8:312~322
R. Shishoo / 1987 / Recent Developments in Breathable High Functional Fabrics / Nonwovens World :890~894
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