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자료유형
학술저널
저자정보
(충북대학교) (충북대학교) (충북대학교) (충북대학교)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제47권 제4호
발행연도
수록면
81 - 87 (7page)

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초록· 키워드

Soda-AQ pulp made from sugarcane bagasse (SCB) were bleached in element chlorine free (ECF) sequence. To reduce chlorine dioxide use, final peroxide bleaching was introduced. Prior to peroxide bleaching, different chelating chemicals were applied for comparative analysis in ISO brightness and viscosity. When using equal total chlorine dioxide usage (4.5%), bleached SCB pulp using chelate and hydrogen peroxide (DEDQP) was reached 86.8% (DTPA), 86.4% (EDTA) ISO brightness, whereas bleached pulp using only hydrogen peroxide (DEDP) reached at 81.2% ISO brightness. Viscosity of DEDQP bleached pulp was 25.6 cPs (DTPA), 25.2 cPs (EDTA), And DEDP bleached pulp was shown 18.0 cPs viscosity. Decreasing of transition metal by chelate process led to improvements in final brightness along with higher viscosity. Due to EDTA is 5-7 times cheaper than DTPA, EDTA is recommended as chelating chemical prior to peroxide bleaching.
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목차

  1. ABSTRACT
  2. 1. 서론
  3. 2. 재료 및 실험방법
  4. 3. 결과 및 고찰
  5. 4. 결론
  6. Literature Cited

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