炭纤维增强石墨电极接头研制  

Development of carbon fiber reinforced graphite electrode nipple

作　　者：张桂兰 张进 赵建国[2] Zhang Gui-lan;Zhang Jin;Zhao Jian-guo(Fangda Carbon New Material Co.,Ltd.,Gansu Lanzhou 730084,China;Shanxi Datong University,Shanxi Datong 037000,China)

机构地区：[1]方大炭素新材料科技股份有限公司,甘肃兰州730084 [2]山西大同大学,山西大同037000

出　　处：《炭素技术》2021年第5期55-59,共5页Carbon Techniques

摘　　要：以短切炭纤维为增强材料,用来制备石墨电极接头,以提高其抗折强度。对不同炭纤维型号进行筛选实验,结果显示T300炭纤维具有较好的分散性。为进一步提高炭纤维的分散能力,设计并合成了一系列含有环氧结构的新型分散剂并对其分散性能开展研究。实验结果显示自制分散剂性能优于商用分散剂。将优选的分散剂用于炭纤维的分散,并制备炭纤维增强石墨电极接头。研究了炭纤维的用量对电极接头理化性能的影响,结果显示所制备的炭纤维增强石墨电极接头性能优异,超过了未加炭纤维的电极接头性能,尤其抗折强度有较大提升,可达30 MPa以上。In order to improve the flexural strength of graphite electrode joints, the short carbon fiber is used as reinforcing material.The results show that T300 carbon fiber has good dispersion through screening experiments on different types of carbon fibers. In order to improve the dispersion ability of carbon fiber, a series of new dispersants containing epoxy structure were designed and synthesized. The experimental results show that the performances of self-made dispersants are better than that of commercial dispersants. The optimized dispersant is used to disperse carbon fiber, so as to facilitate the preparation of carbon fiber reinforced graphite electrode joints. The effect of the amount of carbon fiber on the physical and chemical properties of the electrode joint is investigated. The results show that the carbon fiber reinforced graphite electrode joint exhibits excellent properties, especially in the flexural strength, up to 30 MPa, which exceeds the properties of the electrode joint without carbon fiber.

关 键 词：石墨电极接头 炭纤维增强 分散剂 

分 类 号：TQ127.11[化学工程—无机化工]