CAJ | 학술논문

用丁腈橡胶(CTBN)共聚改性酚醛树脂作为浸渍剂对炭纸坯体进行浸渍，经模压固化、炭化和石墨化工艺制得质子交换膜燃料电池用炭纸。研究浸渍剂中丁腈橡胶含量对炭纸性能的影响。研究结果表明：随CTBN含量增加，炭纸的孔隙率、透气性及导电性能均得到改善。并且发现炭纤维与基体炭的界面结合程度对炭纸导电性能的影响大于石墨化度的影响。随CTBN含量增加，炭纸的强度先增加后降低，当丁腈橡胶添加量占酚醛树脂质量的30%时炭纸强度达最大值。所得PEMFC用炭纸性能参数如下：电阻率18.0 m??cm，孔隙率65.6%，透气度为2050 ml?mm? cm-2?hr-1?mmAq-1；抗拉强度30.14 MPa和抗弯强度68.15 MPa，分别比改性前提高了28%和65%。
용정정상효(CTBN)공취개성분철수지작위침지제대탄지배체진행침지，경모압고화、탄화화석묵화공예제득질자교환막연료전지용탄지。연구침지제중정정상효함량대탄지성능적영향。연구결과표명：수CTBN함량증가，탄지적공극솔、투기성급도전성능균득도개선。병차발현탄섬유여기체탄적계면결합정도대탄지도전성능적영향대우석묵화도적영향。수CTBN함량증가，탄지적강도선증가후강저，당정정상효첨가량점분철수지질량적30%시탄지강도체최대치。소득PEMFC용탄지성능삼수여하：전조솔18.0 m??cm，공극솔65.6%，투기도위2050 ml?mm? cm-2?hr-1?mmAq-1；항랍강도30.14 MPa화항만강도68.15 MPa，분별비개성전제고료28%화65%。
Using CTBN modified phenolic resin as impregnant impregnate carbon paper body, the effects of content of CTBN and phenolic resin on the properties of carbon fiber paper used for proton exchange membrane fuel cells were investigated. The results show that, the porosity, permeability and conductivity of the carbon paper are improved by the addition of CTBN. The binding strength of the interface of the carbon fiber and matrix carbon improves the conductivity of the carbon fiber paper more effectively than that of the graphitization procedure. The strength first increases and then decreases with the increase of CTBN content, and the carbon fiber paper reached its maximum strength with the CTBN addition of 30wt%of phenolic resin, The basic parameters are as follows:resistivity of 18.0 m??cm, porosity of 65.6%, permeability of 2 050 ml?mm?cm-2?hr-1?mmAq-1; tensile strength and bending strength of 30.14 MPa and 68.15 MPa, which are 28%and 65%higher than that of the carbon paper without CTBN modification, respectively.