The Study of Water Stability of MDF Cement Composite by Addition of Epoxy Resin and Manufacturing Process

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J. Korean Ceram. Soc. > Volume 35(4); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(4): 371.

Epoxy Resin 첨가 및 제조공정에 따른 MDF 시멘트 복합재료의 수분안정성 연구

노준석, 김태진¹, 박춘근¹, 최상홀

한양대학교 무기재료공학과
¹쌍용중앙연구소

The Study of Water Stability of MDF Cement Composite by Addition of Epoxy Resin and Manufacturing Process

ABSTRACT

The effect of epoxy resin on the water stability of HAC/PVA based MDF cement composite were stu-died through the three different forming methods calendering extruding and warm pressing. In prexing step the epoxy resin was added in 5-15wt% of cement weight. The 3-point flexural strength of each dry and wet specimen which were immersed in water during 3. 7, 14 days was estmated and the mi-crostructural change of epoxy resin-added MDF cement composite due to water immersion was charac-terized by scanning electron microscopy. As the addition amount of epoxy resin the im-provement of water stability of MDF cement composite was achieved in most case. Especially through the warm press forming method the effectiveness of epoxy resin addition to the water stability was enhanced. When the epoxy resin was added by 5wt% to 7wt% the optimum flexural strength and water stability

Key words: Epoxy resin, HAC/PVA MDF cement composite, Water stability, Flexural strength, Calendering Ex-truding, Warm pressing