文献类型：期刊文献

英文题名：Carbon foams prepared from coal tar pitch for building thermal insulation material with low cost

作者：Liu, Xiang[1,2,3];Wang, Yanli[1,2,3];Zhan, Liang[1,2,3,4]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Key Lab Specially Funct Polymers & Related Techno, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China;[4]Chinese Acad Sci, Inst Coal Chem, CAS Key Lab Carbon Mat, Taiyuan 030001, Shanxi, Peoples R China

年份：2018

卷号：26

期号：2

起止页码：415

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20180604763656);WOS:【SCI-EXPANDED(收录号:WOS:000427859300024)】；

基金：Supported by the National Natural Science Foundation of China (51472086, 51002051) and CAS Key Laboratory of Carbon Materials (No KLCMKFJJ1703).

语种：英文

外文关键词：Carbon foam; Coal tar pitch; Building thermal insulation materials

摘要：A new approach is provided to resolve the large-scale applications of coal tar pitch. Carbon foams with uniform pore size are prepared at the foaming pressure of normal pressure using coal tar pitch as raw materials. The physical and chemical performance of high softening point pitch (HSPP) can be regulated by vacuumizing owing to the cooperation of vacuumizing and polycondensation. Results indicate that the optimum softening point and weight ratio of quinoline insoluble are about 292 degrees C and 65.7%, respectively. And the optimum viscosity of HSPP during the foaming process is distributed in the range of 1000-10000 Pa.s. The resultant carbon foam exhibits excellent performance, such as uniform pore structure, high compressive strength (4.7 MPa), low thermal conductivity (0.07 W.m(-1).K-1), specially, it cannot be fired under the high temperature of 1200 degrees C. Thus, this kind of carbon foam is a potential candidate for thermal insulation material applied in energy saving building. (C) 2017 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.