| 摘要 |
PURPOSE:To simplify debinder process for manufacturing a substrate by using polypropylenecaronate resin, etc., for ceramic powder as main constituents and then a slurry where a material obtained by adding acryl resin as a dispersant is prepared as resin for binder. CONSTITUTION:The main constituent of binder resin is constituted by polypropylene carbonate resin or polyethylenecarbonate resin. Since the resins are completely subjected to thermal composition in air until temperature reaches 300 deg.C, debinder can be performed quickly and easily. The polypropylenecarbonate resin, etc., have relatively large molecular weight. Therefore, when a green sheet is formed only with the resins, the dispersion property of ceramic powder is poor so that the surface state of the green sheet becomes an island style or is cracked. Therefore, by adding acryl resin with a relatively small molecular weight, the dispersion property of the ceramic powder is improved to obtain the improved green sheet. |
