CAJ | 학술논문

合成纤维过滤材料越来越多地被应用于高温烟气过滤器中.聚苯撑苯并二噁唑(PBO)纤维具有强度大、模量高、耐热性能突出、密度小、耐化学性好等特点.对自制的初生PBO纤维进行了高温热处理并对其进行了耐热及耐酸性能的测试.热处理后,PBO纤维的拉伸强度由2.86GPa提高到了3.94GPa;长期使用温度达到600℃;纤维在60%浓度的浓硫酸和63%浓度的浓硝酸中浸泡60d以后,拉伸强度依然可以分别保持在2.71GPa和2.11GPa.同其它高温烟气过滤材料用纤维相比,PBO纤维具有明显的优势.
합성섬유과려재료월래월다지피응용우고온연기과려기중.취분탱분병이오서(PBO)섬유구유강도대、모량고、내열성능돌출、밀도소、내화학성호등특점.대자제적초생PBO섬유진행료고온열처리병대기진행료내열급내산성능적측시.열처리후,PBO섬유적랍신강도유2.86GPa제고도료3.94GPa;장기사용온도체도600℃;섬유재60%농도적농류산화63%농도적농초산중침포60d이후,랍신강도의연가이분별보지재2.71GPa화2.11GPa.동기타고온연기과려재료용섬유상비,PBO섬유구유명현적우세.
Filtration material made from synthetic fiber has been widely applied in high temperature fume filter. Poly (p-pbenylene-2,6-benzo-bisuxazole)(PBO) fiber has many excellent characters such as high strength, high modulus, excellent thermal stability, low-density, excellent chemical stability, etc. The self-made PBO fiber was treated by high temperature and the heat and chemical resistance were tested. The tensile strength of PBO fiber has been improved from 2.86GPa to 3.94GPa after heat treatment. The long time working temperature reaches 600℃. After dipping in 60% con-centrated sulfuric acid and 63% coucentrated nitric acid for 60d, the tensile strength still retains 2.71GPa and 2.11GPa respectively. PBO fiber has obvious advantages compared with other fibers which are applied in high temperaturo fume filter.