CAJ | 학술논문

基于紫外光辐照引发的方法，将亲水性单体衣康酸（IA）接枝在聚丙烯（PP）纤维表面，并用红外光谱（IR）、X射线光电子能谱（XPS）和扫描电子显微镜（SEM）证明了接枝反应的发生，考察了单体浓度、辐照时间、辐照距离、光敏剂浓度以及溶剂比对接枝率的影响.结果表明：随着衣康酸质量分数、辐照时间、光敏剂BP和溶剂乙醇用量的增加，辐照距离的缩短，PP-g-IA纤维的接枝率均增加；溶液pH值对PP-g-IA纤维吸附性能有较大影响，最适宜吸附的pH为5~6；在本文实验条件下，接枝纤维吸附Pb2+的最大吸附量为0.69 mg/g；1 mol/L的HNO3洗脱剂对Pb2+的解吸效果较好，解吸率可达90.64%.
기우자외광복조인발적방법，장친수성단체의강산（IA）접지재취병희（PP）섬유표면，병용홍외광보（IR）、X사선광전자능보（XPS）화소묘전자현미경（SEM）증명료접지반응적발생，고찰료단체농도、복조시간、복조거리、광민제농도이급용제비대접지솔적영향.결과표명：수착의강산질량분수、복조시간、광민제BP화용제을순용량적증가，복조거리적축단，PP-g-IA섬유적접지솔균증가；용액pH치대PP-g-IA섬유흡부성능유교대영향，최괄의흡부적pH위5~6；재본문실험조건하，접지섬유흡부Pb2+적최대흡부량위0.69 mg/g；1 mol/L적HNO3세탈제대Pb2+적해흡효과교호，해흡솔가체90.64%.
Based on the method of induced by ultraviolet irradiation, hydrophilic monomer itaconic acid(IA)was grafted onto polypropylene(PP)fiber surface, and the infrared spectrum (IR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM)proved the grafting reaction. The factors influencing the grafting rate were discussed, such as monomer concentration, irradiation time, irradiation distance, photosensitizer concentration and solvent ratio. Adsorption experiments showed that: The degree of grafting was found to increase with the increase in the IA concentration, irradiation time, BP concentration and the volume of alcohol, and with the decrease of irradiation distance;furthermore, the pH of aqueous solution had great influence on the adsorption of Pb2+and the optimum adsorption pH was 5-6. Under experiment condition of the study, the maximum adsorption capacity of Pb2+ on the grafted fiber was 0.69 mg/g, and 1 mol/L HNO3 solution was effective regeneration solution, with that the desorption efficiency of Pb2+reached 90.64%.