Effects of mixing ratio of ONP and OCC on physical properties of pulp molds for cushion packaging materials

Insik Park, Jai Neung Kim, Daeyong Kim, Youn Suk Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

As the demands of environment protection increases, the pulp mold container is developed to substitute for EPS (expanded polystyrene) as a shock absorbing packaging material. The water-absorbing ratio and mechanical properties such as tensile strength and compressive strength of pulp mold are important factors to evaluate its shock absorbing characteristics. Influences of mixing ratios of ONP (old newspaper) and OCC (old corrugated container) on physical properties of pulp mold were investigated at various conditions of temperature and relative humidity. The optimum mixing ratio of ONP and OCC was also searched based on physical properties. The results showed that when relative humidity was increased from 60% to 90%, the water absorption ratio of pulp mold increased significantly, tensile strength decreased 20-30%, and compressive strength decreased 10-20%. In addition, the optimum mixing ratio of ONP and OCC was found to be 50%:50%.

Original languageEnglish
Pages (from-to)47-54
Number of pages8
JournalPalpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry
Volume40
Issue number1
Publication statusPublished - 2008 May 22

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Corrugated containers
Packaging materials
Molds
Pulp
Physical properties
Compressive strength
Atmospheric humidity
Tensile strength
Polystyrenes
Water absorption
Containers
Mechanical properties
Water
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Media Technology

Cite this

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abstract = "As the demands of environment protection increases, the pulp mold container is developed to substitute for EPS (expanded polystyrene) as a shock absorbing packaging material. The water-absorbing ratio and mechanical properties such as tensile strength and compressive strength of pulp mold are important factors to evaluate its shock absorbing characteristics. Influences of mixing ratios of ONP (old newspaper) and OCC (old corrugated container) on physical properties of pulp mold were investigated at various conditions of temperature and relative humidity. The optimum mixing ratio of ONP and OCC was also searched based on physical properties. The results showed that when relative humidity was increased from 60{\%} to 90{\%}, the water absorption ratio of pulp mold increased significantly, tensile strength decreased 20-30{\%}, and compressive strength decreased 10-20{\%}. In addition, the optimum mixing ratio of ONP and OCC was found to be 50{\%}:50{\%}.",
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Effects of mixing ratio of ONP and OCC on physical properties of pulp molds for cushion packaging materials. / Park, Insik; Kim, Jai Neung; Kim, Daeyong; Lee, Youn Suk.

In: Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry, Vol. 40, No. 1, 22.05.2008, p. 47-54.

Research output: Contribution to journalArticle

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