Siloxane-Modified 에폭시 수지의 Morphology 및 기계적 성질에 관한 연구

신동근; 신세문; 김영철; 박선희; 이명환

Polymer(Korea), Vol.16, No.3, 336-343, May, 1992

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Siloxane-Modified 에폭시 수지의 Morphology 및 기계적 성질에 관한 연구

Morphology and Mechanical Properties of Siloxane-Modified Epoxy Systems

신동근, 신세문, 김영철, 박선희, 이명환

초록

Aminopropyl-terminated dimethyl siloxane oligomer 및 dimethyl-trifluoropropyl cooligomer로 반응시킨 경화 에폭시 수지의 morphology 및 기계적 성질에 관하여 검토하였다. 특히 siloxane oligomer와 에폭시 수지의 modification은 melting state와 solution state에서의 두가지 방법으로 행하였다. 이 결과 solution state에서의 경화 에폭시계가 melting state에서보다 열팽창계수 및 flexural modulus를 더 감소시킬 수 있었다. 또한 siloxane oligomer의 trifluoropropyl기의 농도가 증가함에 따라 siloxane oligomer의 T_g는 증가하였고, domain 크기는 감소함을 알 수 있었다.

Morphology and mechanical properties of cured epoxy systems chemically modified with aminopropyl-terminated dimethyl siloxane oligomer and dimethyl-trifluoropropyl cooligomers were investigated. Specifically, epoxy resin with modified siloxane oligomer was performed by two kinds of method, melting state and solution state reactions. Cured epoxy system in solution state could reduce the thermal expansion coefficient and flexural modulus more effectively than those in the melting state. Increasing the percentage of trifluoropropyl units of siloxane oligomer raised T_g and decreased domain size of siloxane oligomer.

[References]

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Manzione LT, Gillham JK, J. Appl. Polym. Sci., 26, 907 (1981)
Hwang JF, Manson JA, Polym. Eng. Sci., 29(29), 1466 (1989)
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Darke RS, Egan DR, "Epoxy Resin Chemistry," (1983)
Kunz Douglass S, J. Mater. Sci., 1109 (1980)
Saito N, Ikushima T, Polym. Mater. Sci. Eng., 55(54) (1986)
Yorkgitis EM, Adv. Polym. Sci., 72, 79 (1985)
Riffle JS, Yilgor I, Tran C, McGrat JE, Banthia AK, In Epoxy Resin Chemistry II: R.S. Bauer, Ed.: ACS Symposium Series 221, American Chemical Society: Washington, D.C. (1983)
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[Referenced By]

[1] Manzione LT, Gillham JK, J. Appl. Polym. Sci., 26, 889 (1981)

[2] Manzione LT, Gillham JK, J. Appl. Polym. Sci., 26, 907 (1981)

[3] Hwang JF, Manson JA, Polym. Eng. Sci., 29(29), 1466 (1989)

[4] Takahashi T, Nakajima N, Saito N, "Rubber-Toughened Plastics," ed. by C. Keith Riew, p. 245, American Chemical Society, Washington, D.C. (1989)

[5] Yorkgitis EM, Trans C, Eiss NS, Hv TY, Yilgor I, "Rubber-Modified Thermoset Resins," ed. by C. Keith Riew, p. 137, American Chemical Society, Washington, D.C. (1984)

[6] Darke RS, Egan DR, "Epoxy Resin Chemistry," (1983)

[7] Kunz Douglass S, J. Mater. Sci., 1109 (1980)

[8] Saito N, Ikushima T, Polym. Mater. Sci. Eng., 55(54) (1986)

[9] Yorkgitis EM, Adv. Polym. Sci., 72, 79 (1985)

[10] Riffle JS, Yilgor I, Tran C, McGrat JE, Banthia AK, In Epoxy Resin Chemistry II: R.S. Bauer, Ed.: ACS Symposium Series 221, American Chemical Society: Washington, D.C. (1983)

[11] Yilgor I, McGrath JE, Adv. Polym. Sci., 86, 1 (1988)

[12] Japan Kokai Patent, 1-230623 (1989)

[13] Japan Kokai Patent, 64-9125 (1989)

[14] Japan Kokai Patent, 63-238123 (1988)

[15] Japan Kokai Patent, 1-113455 (1989)

[16] Kato K, J. Electron. Microsc., 14, 219 (1965)

[17] Kato K, Polym. Eng. Sci., 7, 38 (1967)