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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Development of Environment-friendly Cushioning Materials by Pulping of Waste Residual Woods

폐잔재의 펄프화를 통한 환경친화적 완충소재의 개발

  • Lee, Young-Min (Dept. of Forest products/IALS, Gyeongsang National Univ.) ;
  • Kim, Chul-Hwan (Dept. of Forest products/IALS, Gyeongsang National Univ.) ;
  • Kim, Jae-Ok (Dept. of Forest products/IALS, Gyeongsang National Univ.) ;
  • Kim, Gyeong-Yun (Dept. of Forest products/IALS, Gyeongsang National Univ.) ;
  • Shin, Tae-Gi (Dept. of Forest products/IALS, Gyeongsang National Univ.) ;
  • Song, Dae-Bin (Dept. of Bio-Industrial Machinery Engineering/IALS, Gyeongsang National Univ.) ;
  • Park, Chong-Yawl (Dept. of Forest products/IALS, Gyeongsang National Univ.)
  • 이영민 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 김철환 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 김재옥 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 김경윤 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 신태기 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 송대빈 (경상대학교 생물산업기계공학과/농업생명과학연구원) ;
  • 박종열 (경상대학교 임산공학과/농업생명과학연구원)
  • Published : 2006.06.30
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Abstract

Environment-friendly shock-absorbing (cushioning) materials were made using a vacuum forming method from waste wood collected from local mountains in Korea. The waste wood was pulped by thermomechanical pulping. The TMP cushions showed superior shock-absorbing properties with lower elastic moduli compared to EPS(Expanded Polystyrene) and pulp mold. Even though the TMP cushions made using at different suction times had many free voids in their inner fiber structures, their apparent densities were a little higher than EPS and much lower than pulp mold. The addition of cationic starch improved elastic modulus of the TMP cushions without increasing the apparent density, which was different from surface sizing with starch. The porosity of the TMP cushions was a little greater than EPS and much less than pulp mold. Finally, the TMP cushions have great potential to endure external impacts occurring during goods distribution.

Keywords

References

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