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J. Korean Ceram. Soc. > Volume 30(2); 1993 > Article
Journal of the Korean Ceramic Society 1993;30(2): 131.
커플링제로 처리된 질화규소 분말의 사출성형
송휴섭
한국과학기술연구원 세라믹스공정연구실
Injection Molding of Silicon Nitride Powders Treated with Coupling Agents
ABSTRACT
The effects of silane coupling agents on the injection molding process were investigated using silicone nitride mixtrues with a binder system containing polypropylene as a major binder (55vol% solid loading). The formation of bonding between silicon nitride powder and coupling agents was confirmed through the analyses of powder surface. The use of coupling agents improved mixing characteristics judged by the torque change during mixing process. the coupling agents also reduced molten viscosity of the mixture considerably, which is a main factor to determine the flow of the mixture. However, the bonding between coupling agents and polymers had a negative effect on the debinding process by retarding the thermal decomposition.
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