콜로이드 실리카와 알콕시 실란의 솔-젤 코팅제 합성과 특성

강동필; 박효열; 안명상; 명인혜; 이태주; 최재훈; 김현중; Dong-Pil Kang; Hoy-Yul Park; Myeong-Sang Ahn; In-Hye Myung; Tae-Ju Lee; Jae-Hoon Choi; Hyun-Joong Kim

Polymer(Korea), Vol.29, No.3, 242-247, May, 2005

Export Citation

콜로이드 실리카와 알콕시 실란의 솔-젤 코팅제 합성과 특성

Properties of Sol-Gel Materials Synthesized from Colloidal Silica and Alkoxy Silanes

강동필^†, 박효열, 안명상, 명인혜, 이태주, 최재훈¹, 김현중¹

한국전기연구원 신소재응용연구그룹
¹서울대학교 임산공학과

Dong-Pil Kang^†, Hoy-Yul Park, Myeong-Sang Ahn, In-Hye Myung, Tae-Ju Lee, Jae-Hoon Choi¹, and Hyun-Joong Kim¹

Advanced Materials and Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon 641-120, Korea
¹Department of Forest Products, College of Agriculture and Life Science, Seoul National University, Seoul 151-921, Korea

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초록

콜로이드 실리카 종류, 콜로이드 실리카/실란의 함량비, 반응시간 등의 반응조건에 따라 두 종류의 콜로이드 실리카/실란 솔을 합성하였다. 이러한 졸을 이용하여 솔-젤 코팅막을 제조하여 물리적 화학적 특성을 조사하였다. 그 결과 1034A 콜로이드 실리카계로부터 얻어진 솔-젤 코팅막의 접촉각과 표면균질성은 HSA계 솔-젤 코팅막에 비하여 우수하였다. 그리고 1034A 콜로이드 실리카계로부터 얻어진 솔-젤 코팅막은 550 ℃까지 열분해없이 안정하였고 methyltrimethoxysilane(MTMS) 함량이 증가할수록 코팅막의 두께가 두꺼워 졌다. 1034A 콜로이드 실리카계 솔-젤 코팅막의 경도는 MTMS의 함량 증가에 따라 감소하였으나 HSA계는 큰 영향을 받지 않았다. 표면에너지는 MTMS 함량 증가와 더불어 전반적으로 감소하는 경향을 보였다.

Two kinds of colloidal silica(CS)/silane sol solutions were prepared in variatin with synthesizing parameters such as kinds of CS, ratio of CS to silane and reaction time. Such sol solutions were obtained from 1034A CS/methyl-trimethoxysilane(MTMS) and HSA CS/MTMS solutions. In the case of 1034A CS/MTMS CS/silane sol, coating film had high contact angle and more enhanced flat surface than those in the case of HSA CS/MTMS sol. In the case of thermal stability, thermal dissociation of 1034A CS/MTMS sol did not occur up to 550 ℃. The thickness of coating film obtained from 1034A CS/MTMS sol invreased with increasing the amount of MTMS. The hardness of coating films obtained from 1034A CS/MTMS sol decreased with increasing the amount of MTMS. Surface free energy of CS/silane sol-gel coating film decreased with increasing amount of MTMS.

Keywords:sol-gel;colloidal silica;tetramethoxysilane;methyltrimethoxysilane;coating film

[References]

Satas D, Tracton A, Coatings Technology Handbook, 2nd Ed., Chapman and Hall (1990)
Yoon SE, Woo HG, Kim DP, Polym.(Korea), 24(3), 389 (2000)
Fanovich MA, Pellice SA, Galliano PG, Williams RJJ, J. Sol-Gel Sci. Technol., 23, 45 (2002)
Soares CMF, dosSantos OA, Olivo JE, deCastro HF, J. Mol. Catal. B-Enzym., 29, 69 (2004)
Kang DP, Park HY, Ahn MS, Myung IH, Lee TH, Lee TJ, KIEEME Annual Spring Conference 2004, 154 (2004)
Rao AV, Kulkarni MM, Amalnerkar DP, Seth T, J. Non-Cryst. Solids, 330, 187 (2003)
DIN 50359-1, Testing of Metallic Materials-Universal Hardness Test-Part 1 : Test Method (1997)
ISO 14577-1, Metalllic materials-instrumented indentation test for hardness and materials parameters- Part 1: Test method (2002)
Perruchot C, Chehimi MM, Delamar M, Lascelles SF, Armes SP, J. Colloid Interface Sci., 193(2), 190 (1997)

[Referenced By]

[1] Satas D, Tracton A, Coatings Technology Handbook, 2nd Ed., Chapman and Hall (1990)

[2] Yoon SE, Woo HG, Kim DP, Polym.(Korea), 24(3), 389 (2000)

[3] Fanovich MA, Pellice SA, Galliano PG, Williams RJJ, J. Sol-Gel Sci. Technol., 23, 45 (2002)

[4] Soares CMF, dosSantos OA, Olivo JE, deCastro HF, J. Mol. Catal. B-Enzym., 29, 69 (2004)

[5] Kang DP, Park HY, Ahn MS, Myung IH, Lee TH, Lee TJ, KIEEME Annual Spring Conference 2004, 154 (2004)

[6] Rao AV, Kulkarni MM, Amalnerkar DP, Seth T, J. Non-Cryst. Solids, 330, 187 (2003)

[7] DIN 50359-1, Testing of Metallic Materials-Universal Hardness Test-Part 1 : Test Method (1997)

[8] ISO 14577-1, Metalllic materials-instrumented indentation test for hardness and materials parameters- Part 1: Test method (2002)

[9] Perruchot C, Chehimi MM, Delamar M, Lascelles SF, Armes SP, J. Colloid Interface Sci., 193(2), 190 (1997)