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2019 Vol.51, Issue 1 Preview Page
Strength Improvement of NC-SwBKP Sheets with PAE-Micropolymer Dual Polymer Strengthening Aids

PAE-Micropolymer 이중고분자 지력증강제에 의한 NC-SwBKP 시트의 강도 향상

Jin-Soo Kim
,
Hyeong-Uk Joo1
,
Min-Seok Oh1
,
Tae-Soo Kwon1
,
Jae-Hoon Lee2‡
,
Byoung-Uk Cho†
김진수
,
주형욱 1
,
오민석 1
,
권태수 1
,
이재훈 2‡
,
조병욱 †
Program of Paper Science & Engineering, Division of Forest Material Science and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341
1Poongsan R&D Institute, Kyung Ju, 38026
2Changgang Institute of Paper Science and Technology, Kangwon National University, Chuncheon, 24341
강원대학교 산림환경과학대학 산림응용공학부 제지공학전공
1㈜풍산 기술연구원
2강원대학교 창강제지기술연구소
†Corresponding author: E-Mail: bucho@kangwon.ac.kr
‡Co-corresponding Author: E-Mail: fiberlee@kangwon.ac.kr
28 February 2019. pp. 92-99
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Abstract

The effects of step-by-step addition of PAE (polyamideamine-epichlorohydrin) and micropolymer dual polymer system on wet web strength and dry strength of NC (nitrocellulose fibers)-SwBKP (softwood bleached kraft pulp) sheets were investigated in terms of the addition ratio of PAE and micropolymer and the dosage of the polymers. It was found that the addition of PAE alone or the step-by-step addition of PAE and micropolymer increased wet web tensile strength and dry strength of NC-SwBKP sheets. The dual polymer strengthening aids consisted of PAE and micropolymer in the ratio of 60:40 and 50:50 showed the highest increase in tensile strength and TEA. In case of bursting strength and compressive strength, it was obtained with the ratio of 70:30 (PAE: micropolymer). Tensile strength was able to be increased to a maximum of 84.1%, TEA was increased 126.4%, bursting strength was increased 73.5%, and compressive strength was increased to a maximum of 132.8%. In addition, the wet web tensile strength of NC-SwBKP sheets was able to be increased to a maximum of 68.7% with the step-by-step addition of PAE and micropolymer in the ratio of 95:5.

Keywords
Dual polymer system
step-by-step addition
NC-SwBKP sheet
PAE
micropolymer
wet web tensile strength
paper strength
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 51
  • No :1
  • Pages :92-99
  • Received Date : 2019-01-28
  • Revised Date : 2019-02-18
  • Accepted Date : 2019-02-20
  • DOI :https://doi.org/10.7584/JKTAPPI.2019.02.51.1.92
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