무기계 내화 필러 및 팽창재료로 충전된 실리콘 고무 복합체의 열적 안정성과 기계적 특성

황소산; 류현준; 김영선; 소재일; 진성훈; 백성현; 심상은; Sosan Hwang; Hyun Jun Ryu; Youngseon Kim; Jae Il So; Sung Hoon Jin; Sung-Hyeon Baeck; Sang Eun Shim

Polymer(Korea), Vol.42, No.3, 354-363, May, 2018

DOI10.7317/pk.2018.42.3.354 Export Citation

무기계 내화 필러 및 팽창재료로 충전된 실리콘 고무 복합체의 열적 안정성과 기계적 특성

Thermal Stability and Mechanical Properties of Silicone Rubber Composites Filled with Inorganic Fire-proof Fillers and Expandable Materials

황소산, 류현준, 김영선, 소재일, 진성훈, 백성현, 심상은^†

인하대학교 화학 및 화학공학 융합대학원

Sosan Hwang, Hyun Jun Ryu, Youngseon Kim, Jae Il So, Sung Hoon Jin, Sung-Hyeon Baeck, and Sang Eun Shim^†

Department of Chemistry & Chemical Engineering, Inha University, Incheon 22212, Korea

E-mail:

초록

본 연구에는 무기계 내화 필러와 팽창재료를 충전한 실리콘 고무 복합체의 내화 성능과 열적 안정성 및 기계적 강도를 분석하였다. 가스 토치 화염시험과 열 중량분석(TGA)을 통해 미네랄 섬유(mineral fiber)/실리콘 고무 복합체는 규회석(wollastonite)/실리콘 고무 복합체와 운모(mica)/실리콘 고무 복합체보다 내화 성능이 우수하다는 것을 확인하였다. 주사전자현미경(SEM)을 통해 규회석은 실리콘 고무에 분산성이 양호함을 확인하였고, 만능재료분석기 (UTM)를 통해 분석한 결과 기계적 강도가 가장 우수했다. 팽창재료(팽창흑연 및 팽창질석) 2종은 가스 토치 화염시험 결과 내화 필러/실리콘 고무 복합체의 내화성능을 보다 향상시킬 수 있다는 것을 확인하였다. 특히, 팽창흑연이 충전된 실리콘 고무 복합체가 팽창질석이 충전된 실리콘 고무 복합체보다 내화성능이 더 우수함을 확인하였다. 하지만, 기계적 특성의 경우, 팽창질석이 충전된 실리콘 고무 복합체가 팽창흑연이 충전된 실리콘 고무 복합체보다 다소 우수하였다.

In this study, mechanical properties and thermal stability of silicone rubber (SR) composites filled with various inorganic fire-proof fillers and expandable materials were evaluated. A fire resistance tested by gas torch flame tests and thermogravimetric analysis (TGA) of Mineral fiber/SR (F/SR) composites were superior to wollastonite/SR (W/SR) and Mica/SR (M/SR) composites. W was well dispersed in SR observed by scanning electron microscope (SEM) and the mechanical strength of W/SR composites was greatest analyzed by universal material analyzer (UTM). Expandable graphite (EG)/SR composites had improved a fire resistance than that of expanded vermiculite (EV)/SR composites. Especially, the fire resistance of EG/SR composite was superior to the EV/SR composite. However, the mechanical properties of EV/SR composites were only slightly higher than those of EG/SR composites.

Keywords:silicone rubber;thermal stability;inorganic fillers;expandable materials;flame retardant

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[4] Jana R, Nando G, Khastgir D, Plast. Rubber Compos., 32, 1 (2003)

[5] Zhuo JL, Dong J, Jiao CM, Chen XL, Plast. Rubber Compos., 42, 239 (2013)

[6] Genovese A, Shanks RA, Polym. Degrad. Stabil., 92, 2 (2007)

[7] Yoon CR, Lee JH, Bang DS, Jang IY, Won JP, Park WY, Elastom. Compos., 45, 87 (2010)

[8] Xiong Y, Shen Q, Chen F, Luo G, Yu K, Zhang L, Fire. Mater,, 36, 4 (2012)

[9] Liang J, Polym. Bull., 68, 3 (2012)

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[17] W. George, Handbook of fillers, 3rd Edition, ChemTec Publishing, Toronto, 2010.

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[20] Hayashida K, Tsuge S, Ohtani H, Polymer, 44, 19 (2003)

[21] Hanu L, Simon G, Mansouri J, Burford R, Cheng Y, J. Mater. Process. Technol., 153, 401 (2004)

[22] Marosi G, Marton A, Anna P, Bertalan G, Marosfoi B, Szep A, Polym. Degrad. Stabil., 77, 2 (2002)

[23] Dittrich B, Wartig K, Hofmann D, Mulhaupt R, Schartel B, Polym. Degrad. Stabil., 98, 8 (2013)

[24] Wang Z, Han E, Ke W, Corrosion Sci., 49, 5 (2007)

[25] Karaipekli A, Sarı A, J. Ind. Eng. Chem., 16, 5 (2010)

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[27] Mu Q, Feng S, Thermochim. Acta, 462, 1 (2007)