화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.26, No.2, 153-159, March, 2002
Export Citation
E-beam 전조사에 의한 NO3(-) 선택 흡착용 아민화 PP-g-GMA 섬유 이온교환체의 합성과 그 특성에 관한 연구
Studies on the Synthesis of Aminated PP-g-GMA Fibrous Ion Exchanger by E-beam Pre-irradiation and Their Properties of Selective Adsorption for NO3(-)
황택성†, 이선아, 이면주1
  • 충남대학교 화학공학과
  • 1한국원자력연구소 방사선환경안전연구팀
Taek-Sung Hwang†, Sun-Ah Lee, and Myun-Joo Lee1
  • Department of Chemical Engineering, College of Engineering, Chungnam National University, Taejon 305-764, Korea
  • 1Radio. Isotop. application team, Korea Atomic Energy Research Institute, Taejon 305-353, Korea
E-mail:
초록
본 연구에서는 지하수 중의 NO3(-) 이온을 선택적으로 흡착 제거시키기 위하여 E-beam 전조사법에 의해 GMA 단량체를 폴리프로필렌 섬유 기재에 그라프트 반응시켜 PP-g-GMA 공중합체를 제조한 후 아민화 반응을 통하여 강염기성 APP-g-GMA 음이온교환수지를 합성하였다. 공중합체의 그라프트율 및 TMA에 의한 아민화율은 반응온도가 증가할수록 증가하였으며, 60 ℃일 때 각각 133%, 88%로 최대치를 나타내었고, 이때의 팽윤율과 이온교환용량은 각각 86%, 2.5 meq/g으로 IMAC HP555, Amberlite IRA 400와 같은 상용 이온교환수지 보다 높게 나타났다. NO3(-) 이온흡착의 최적 조건은 pH 5∼6이었으며, trimethylammonium 기를 갖는 -Cl형의 APP-g-GMA 이온교환체가 가장 높은 선택 흡착성을 나타냈다.
In order to remove NO3(-) ion from ground-water, fibrous ion-exchangers, APP-g-GMA, were synthesized by GMA grafting onto PP trunk polymer with E-beam accelerator for pre-irradiation. Their degrees of grafting and amination yield increased up to 60 ℃ and showed maximum values as 133%, 88%, respectively. And their swelling ratio and ion exchange capacity at the maximum values are 86%, 2.5 meq/g, respectively, which was higher than commercial ion-exchangers such as IMAC HP555 and Amberlite IRA 400. Optimum adsorption condition of NO3(-) ion was measured at pH 5∼6 and -Cl form of APP-g-GMA containing trimethylammonium group showed the highest adsorption capacity.
Keywords:nitrate;NO3(-);selectivity coefficient;fabric ion exchanger;E-beam
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