에폭시 대두유로 개질된 에폭시 수지의 특성 2: 열적, 기계적 물성 및 모폴로지

이상묵; Sangmook Lee

Polymer(Korea), Vol.42, No.3, 498-503, May, 2018

DOI10.7317/pk.2018.42.3.498 Export Citation

에폭시 대두유로 개질된 에폭시 수지의 특성 2: 열적, 기계적 물성 및 모폴로지

Properties of Epoxidized Soybean Oil Modified Epoxy Resins 2: Thermal, Mechanical, and Morphological Properties

이상묵^†

단국대학교 화학공학과

Sangmook Lee^†

Division of Chemical Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Gyeonggi-do 16890, Korea

E-mail:

초록

에폭시 대두유(ESO)로 개질된 에폭시 수지를 지환형 산무수물로 경화시켰다. 경화한 에폭시 수지의 열적, 기계적 물성 및 모폴로지를 TGA, DMA, UTM, impact tester, SEM을 이용하여 조사하였다. ESO 함량이 증가함에 따라 인장강도, 굴곡강도 및 충격강도가 증가하였는데 모두 ESO 함량이 10 wt% 일 때 최대값을 보였다. 모폴로지를 관찰한 결과 충격강도의 증가는 에폭시 망상구조에 유연한 ESO의 지방족 분자사슬이 도입됨으로써 파단시 거친 표면을 생성시켜 충격 에너지를 흡수하는데 기인한다고 판단되었다. 이에 반응성 에폭시 대두유를 지환형 에폭시 수지에 소량 첨가함으로써 우수한 내후성과 경제성은 물론 개선된 기계적 특성 및 친환경 특성을 갖는 에폭시 수지를 제조할 수 있으리라 사료된다.

Cycloaliphatic epoxy resins were mixed with epoxidized soybean oil (ESO) and cured with cycloaliphatic anhydride. Thermal, mechanical properties and morphology of the epoxy resins were investigated by TGA, DMA, UTM, impact tester, and SEM. As ESO content increased, the tensile, flexural, and impact strengths of the epoxy resins increased and had maximum values at 10 wt% of ESO content. The morphology revealed that the impact strength increase was due to the flexible ESO aliphatic chain introduced into the epoxy network, which caused the rough fractured surface and absorbed the impact energy. Therefore it was thought that the epoxy resins with improved mechanical properties and good weatherability as well as environment friendliness and economic feasibility can be manufactured by adding a small amount of reactive ESO into cycloaliphatic epoxy resins.

Keywords:epoxidized soybean oil;cycloaliphatic epoxy;cycloaliphatic anhydride;weatherability

[References]

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Czub P, Macromol. Symp., 242, 60 (2006)
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Horowitz H, Metzger G, Anal. Chem., 35, 1464 (1963)
Doyle CD, Anal. Chem., 33, 77 (1961)
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Park SJ, Kim TJ, Kim HY, Polym. Int., 51, 386 (2002)
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Ogura I, DIC Technical Review, 7, 1 (2001)
Miyagawa H, Misra M, Drzal LT, Mohanty AK, Polymer, 46(2), 445 (2005)
Pearson RA, Yee AF, Polymer, 34, 3658 (1993)

[Referenced By]

[1] Raquez JM, Deleglise M, Lacrampe MF, Krawczak P, Prog. Polym. Sci, 35, 487 (2010)

[2] Meier MAR, Metzger JO, Schubert US, Chem. Soc. Rev., 36, 1788 (2007)

[3] Lu J, Khot S, Wool RP, Polymer, 46(1), 71 (2005)

[4] Li FK, Larock RC, J. Appl. Polym. Sci., 80(4), 658 (2001)

[5] Yadav GD, Satoskar DV, J. Am. Oil Chem. Soc., 74, 397 (1997)

[6] Gerbase AE, Gregorio JR, Martinelli M, Brasil MC, Mendes ANF, J. Am. Oil Chem. Soc., 79, 179 (2002)

[7] Jin FJ, Park SJ, Polym. Int., 57, 577 (2008)

[8] Czub P, Macromol. Symp., 242, 60 (2006)

[9] Valea A, Martinez I, Gonzalez ML, Eceiza A, Mondragon I, J. Appl. Polym. Sci., 70(13), 2595 (1998)

[10] Patel RG, Patel SR, Thermochim. Acta, 202, 97 (1992)

[11] Nae HN, J. Appl. Polym. Sci., 33, 1173 (1987)

[12] Matsumoto A, Kimura T, J. Appl. Polym. Sci., 68(10), 1703 (1998)

[13] Yaday M, Rhee KY, Carbohydr. Polym., 90, 165 (2012)

[14] Horowitz H, Metzger G, Anal. Chem., 35, 1464 (1963)

[15] Doyle CD, Anal. Chem., 33, 77 (1961)

[16] Ritzenthaler S, Court F, Girard-Reydet E, Leibler L, Pascault JP, Macromolecules, 36(1), 118 (2003)

[17] Park SJ, Kim TJ, Kim HY, Polym. Int., 51, 386 (2002)

[18] Tan SG, Chow WS, Polym. -Plast. Technol. Eng., 49, 1581 (2010)

[19] Wang R, Schuman TP, Expr. Polym. Lett., 7, 272 (2013)

[20] Lee S, Polym. Korea, 40(3), 471 (2016)

[21] Ogura I, DIC Technical Review, 7, 1 (2001)

[22] Miyagawa H, Misra M, Drzal LT, Mohanty AK, Polymer, 46(2), 445 (2005)

[23] Pearson RA, Yee AF, Polymer, 34, 3658 (1993)