期刊
COMPOSITES PART B-ENGINEERING
卷 151, 期 -, 页码 154-160出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.06.013
关键词
Carbon foam; Eco-friendly composites; Carboxymethyl cellulose; Electron beam irradiation
资金
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Education [2016R1A6A1A03012069]
- National Research Foundation of Korea grant - Korea government (MSIP) [2017R1A2B1008753]
- National Research Foundation of Korea [2017R1A2B1008753] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Carbon foams were prepared by carbonization process without additional stabilization process after manufacturing carboxymethyl cellulose (CMC) composites using a facile electron beam irradiation (EBI) method. A gel fractionation technique was used to study cross-linking degree of infusible structure in the produced CMC composite materials. We observed an increase in cross-linking with increasing CA concentration and EBI doses between 20 kGy and 80 kGy. The CMC composite prepared using 4 wt% CA and 80 kGy EBI represents the highest gel fraction value of similar to 98%, showing the highest carbon yields and compressive strength due to the increase of cross-linked parts in carbon foam obtained from these CMC composites, which lowers break defects after carbonization. In addition, available surface area was estimated via Brunauer-Emmett-Teller analysis of the carbon foam samples. The carbon foam produced from the CMC composite treated with 4 wt% CA via 80 kGy resulted in highest specific surface area of 372.06 m(2)/g and adsorption pore size of 2.20 nm indicating greater interaction between gas and the carbon atoms.
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