Thermal debinding dynamics of novel binder system

来源期刊：中国有色金属学报(英文版)2001年第4期

论文作者：周继承 黄伯云 张传福 刘业翔

文章页码：517 - 520

Key words：plasticizing powder extrusion molding; binder; thermal debinding mechanism; non-isothermal dynamics

Abstract: The thermal debinding dynamics of newly developed binders for cemented carbides extrusion molding was studied. It is shown that the thermal debinding processes can be divided into two stages: low temperature region, in which the low molecular mass components (LMMCs) are removed; and high temperature region, in which the polymer components are removed. The rate of thermal debinding is controlled by diffusion mechanism. The thermal debinding activation energies were solved out by differential method and integral method. The results show that the addition of other components acted as a catalyzer can effectively decrease the activation energy of thermal debinding processes.