由中间相炭微球制备高密度各向同性炭  

PREPARATION OF ISOTROPIC CARBON SOLIDS FROM MESOCARBON MICROBEADS

作　　者：吕永根[1] 凌立成[1] 刘朗[1] 张碧江[1] 吴东[2] 

机构地区：[1]中国科学院山西煤炭化学研究所 [2]中国科学院山西煤化所煤转化国家重点实验室

出　　处：《炭素》1998年第4期9-14,共6页Carbon

基　　金：国家自然科学基金!59502004

摘　　要：以中间相炭微球（MCMB）为原料，在常温下压制成型。所用MCMB由不同一次吡啶不溶物含量的煤焦油在不同条件下聚合后通过热过滤及吡啶抽提分离而得。考察了不同原料、成型压力、热处理温度及升温速率对炭制品的密度及收缩率的影响。1000℃下炭化后炭制品的表观密度最高达1．75g／cm3。Mesocarbon microbeads (MCMB). prepared by carbonizing coal tars under different conditions. were molded into green solids under room temperature. The green solids were heattreated at different temperature with various heating rates for some time. The influence of raw material properties. molding pressure. heat-treatment temperature, and heating rate on the density, volume shrinkage and carbon yield was studied. The apparent density of carbon products carbonized at 1000℃ could be to 1. 75g/ cm°.

关 键 词：中间相 炭微球 各向同性炭 密度 石墨 MCMB 

分 类 号：TQ127.11[化学工程—无机化工]