Synthesis and characterization of eco-friendly carboxymethyl cellulose based carbon foam using electron beam irradiation. (15th October 2018)

• Record Type: Journal Article
• Authors: Kim, Hong Gun; Kwac, Lee Ku; Kim, Yong-Sun; Shin, Hye Kyoung; Rhee, Kyong-Yop
• Is Part Of: Composites. Number 151(2018)
• Page Start: 154
• Page End: 160
• Publication Date: 2018-10-15
• Subjects: Carbon foam -- Eco-friendly composites -- Carboxymethyl cellulose -- Electron beam irradiation; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.06.013
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: 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 ∼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.