Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Analysis of the Surface Characterisitics of Microstickies by Contact Angle Measurement

접촉각 측정을 통한 스틱키의 표면화학적 특성 분석

  • Park, Il (Major in Environmental Materials Science, College of Agriculture and Life Sciences, Seoul National University) ;
  • Lee. Hak-Lae (Major in Environmental Materials Science, College of Agriculture and Life Sciences, Seoul National University)
  • 박일 (서울대학교 농업생명과학대학 산림과학부 환경재료과학) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부 환경재료과학)
  • Published : 2005.06.01
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Abstract

Increase in the utilization rate of recycled paper has significantly increased the problem associated with stickies. Despite the effort to eliminate contaminants from recycled furnishes, stickies are still the most serious obstacle in using recycled paper. The amount of micro stickies that are too small to be eliminated by screening, tends to increase significantly as the closure level of white water system is increased and the quality of raw material deteriorates. To establish a process efficient in removing micro stickies is strongly required. In this study, the surface characteristic of micro stickies was investigated with contact angle measurement. Surface energies of MCC, PSA film and model micro stickies were 53.37 mN/m, 29.75mN/m, and 29.63mN/m, respectively. This indicates that the surface characteristic of MMS is very similar to PSA. Thus, solvent coating of PSA and evaporation of the solvent provided excellent model micro stickies for flotation experiment.

Keywords

References

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