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J. Korean Ceram. Soc. > Volume 41(7); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(7): 555.
doi: https://doi.org/10.4191/kcers.2004.41.7.555
고분자의 자체발포를 이용한 세라믹 다공질체
백종원, 김득중
성균관대학교 재료공학과
Ceramic Foams by the Self-Blowing of Polymer
Ceramic foams were prepared by a self-blowing process of a polysiloxane with A1$_2$O$_3$ as a filler. The release of water and ethanol vapor during the condensation reaction of the polymer triggered the pores in the polymer melt. The size. interconnectivity and shape of the pores in the ceramic foams were strongly dependent on the viscosity of the polymer melt, which could be varied by the content and size oi the filler. When the content of the filler inceased and the size of the filler decreased. the size of the pores were decreased and the thickness between the pores were increased. In the addition, the viscosity of polymer melt increased by the pretreatment at 130$^{circ}C$ for Ire intermolecular cross linking thereby stabilizing the foam structure. The density and compressive strength of the ceramic foams were affected by the heating rate during the blowing process.
Key words: Ceramic foam, Preceramic polymer, Polymer pyrolysis
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