Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference (한국펄프종이공학회:학술대회논문집)
- 2006.06b
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- Pages.475-478
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- 2006
Use of Waste Woods for Developing Environment-friendly Shock-absorbing Materials
- Kim, Chul-Hwan (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.) ;
- Song, Dae-Bin (Dept. of Bio-Industrial Machinery Engineering, IALS, Gyeongsang National Univ.) ;
- Lee, Young-Min (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.) ;
- Kim, Jae-Ok (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.) ;
- Kim, Gyeong-Yun (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.) ;
- Shin, Tae-Gi (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.) ;
- Park, Chong-Yawl (Division of Env. Forest Sci., IALS, Gyeongsang National Univ.)
- Published : 2006.06.06
Abstract
Environment-friendly shock-absorbing 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 and pulp mold. Even though the TMP cushions made using different suction times had many free voids in their inner fiber structure, their apparent densities were a little higher than EPS and much lower than pulp mold. The addition of cationic starch improved the 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.
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