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.
초록· 키워드
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Ionomer is a thermoplastic that is composed of covalent bonds and ionic bonds. It is possible to use this material in processes such as injection molding or extrusion molding due to the material's high oil resistance, weatherproof characteristics, and shock resistance. In this study, a new ionomer having a multifunctional group was prepared by a stepwise neutralization system with the addition of acidic and salt additives. In step I, to increase the contents of the multifunctional group and the acid degree in ethylene acrylic acid (EAA), MGA was added to the ionomer resin (EAA). A new ionomer was prepared via the traditional preparation method of the ionic cross-linking process. In step II, metal salt was added to the mixture of EAA and MGA. The extrusion process was performed using a twin extruder (L/D = 40, size : ${\varphi}30$). Ionomer film was prepared for evaluation of gas permeability by using the compression molding process. The degree of neutralized and ionic cross-linked new ionomer was confirmed by FT-IR and XRD analysis. In order to estimate the neutralization of the new ionomer film, various properties such as gas permeation and mechanical properties were measured. The physical strength and anti-scratch property of the new ionomer were improved with increase of the neutralization degree. The gas barrier property of the new ionomer was improved through the introduction of an ionic site. Also, the ionic degree of cross-linking and gas barrier property of the ionomer membrane prepared by stepwise neutralization were increased.
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참고문헌 (26)
참고문헌 신청
M. R. Tant / 1997 / Ionomers:Synthesis, Structure, Properties and Applications / Blackie Academic and Professional :3~31
G. Holden / 1996 / Thermoplastic Elastomers, 2nd ed / Hanser Gardner Publications :101
S. Schlick / 1996 / Ionomers: Characterization, Theory, and Applications, p. / CRC Press Boca Raton
S. H. Kim / 2003 / Macromolecules 36(7):2382
B. P. Kirkmeyer / 2002 / Macromolecules 35(7):2648
G. Holden / 1996 / Thermoplastic Elastomers, 2nd ed / Hanser Gardner Publications :101
S. Schlick / 1996 / Ionomers: Characterization, Theory, and Applications, p. / CRC Press Boca Raton
S. H. Kim / 2003 / Macromolecules 36(7):2382
B. P. Kirkmeyer / 2002 / Macromolecules 35(7):2648
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