CAJ | 학술논문

以酚醛树脂、BJO-0930酚醛微球为原材料,与适量蒙脱土混合,采用模压成型法制备出酚醛泡沫前驱体,在Ar气保护下进行800℃炭化处理,得到蒙脱土改性闭孔微球型炭泡沫复合材料。探讨蒙脱土对炭泡沫微观结构、压缩强度和热导率的影响。结果表明,蒙脱土改性炭泡沫复合材料的基体相与微球相结合更紧密,孔隙率降低；压缩强度提高到25.54 MPa；热导率也明显降低,800℃下的热导率降为0.588 W/(m·K)。
이분철수지、BJO-0930분철미구위원재료,여괄량몽탈토혼합,채용모압성형법제비출분철포말전구체,재Ar기보호하진행800℃탄화처리,득도몽탈토개성폐공미구형탄포말복합재료。탐토몽탈토대탄포말미관결구、압축강도화열도솔적영향。결과표명,몽탈토개성탄포말복합재료적기체상여미구상결합경긴밀,공극솔강저；압축강도제고도25.54 MPa；열도솔야명현강저,800℃하적열도솔강위0.588 W/(m·K)。
Montmorillonite-modified carbon foams with a closed-pore structure were prepared by compressive molding of phenolic resin, phenolic hollow microspheres and montmorillonite, followed by thermosetting and carbonization at 800℃ under Ar flow. The effects of the montmorillonite content on the microstructure, compressive strength and thermal conductivity of the modified foams were investigated. Results show that the hollow microspheres, carbon matrix and montmorillonite combine more closely in the modi-fied carbon foams than the unmodified one. Their compressive strength increases and the porosity decreases with increasing montmo-rillonite content from 0 to 7 wt.%. The highest compressive strength is 25. 54 MPa and the lowest thermal conductivity at 800℃ is 0. 588 W/(m·K) when the montmorillonite content is 7 wt.%.