A New Porous Carbon Material made from Rice Bran
A New Porous Carbon Material made from Rice Bran
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DOI：
10.5188/ijsmer.11.10
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发表时间：
2003-03
期刊：
影响因子：
--
通讯作者：
H. Iizuka;T. Noguchi;Syujun Shikano
中科院分区：
文献类型：
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作者：
H. Iizuka;T. Noguchi;Syujun Shikano
利用米糠的天然多孔结构开发了一种新型多孔碳材料。原始多孔碳材料（米糠碳，RBC）是将脱脂米糠与酚醛树脂混合，加压成型，干燥，然后在900℃下碳化而制成。因此，红细胞具有无孔结构。在这项研究中，作者研究了增强 RBC 的新制造工艺。首先，用脱脂米糠浸渍酚醛树脂（25wt.%）并在 900°C 下碳化来制造 RB 碳颗粒。在第一强化过程中，然后将碳化的RB碳颗粒和酚醛树脂的混合物加压成型，以制造盘形RB碳(CRB)。由于RB碳颗粒是脆性的，因此它们在加压成型期间破裂，所以CRB中的孔径可以比RBC中的孔径更小。在第二次强化过程中，混合物被注塑成型，制成矩形 RB 碳 (IMCRB)。 IMCRB 的孔径也更小。两种强化材料的抗压强度、弯曲强度和断裂韧性均有所提高。
A new porous carbon material has been developed utilizing a natural porous structure of rice bran. Theoriginal porous carbon material (rice bran carbon, RBC) are manufactured by mixing the defatted rice branwith a phenol resin, pressure forming, drying, and then carbonizing at 900°C. Therefore, the RBC has aporous structure. In this study, the authors investigated new manufacturing processes to strengthen the RBC. As a preliminary, the RB carbon particles are manufactured impregnating a phenol resin (25wt.%) with thedefatted rice bran and carbonizing at 900°C. In the first strengthening process, the mixture of the carbonized RB carbon particles and a phenol resin are then pressure formed to make a disk-shape RB carbon (CRB) Since the RB carbon particles are brittle and therefore they are broken during the pressure forming, the poresize can be smaller in the CRB than in the RBC. In the second strengthening process, the mixture is in jectionmolded to make a rectangular RB carbon (IMCRB). The pore size is also smaller in the IMCRB. Thecompressive strength, bending strength and fracture toughness are increased in the both strengthened materials.