Increasing Rice-Hull Paperboard Tensile Strength – A Preliminary Study

Research Track

  • S. Malasri Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • J. Brown Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • J. Byrd Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • A. Seay Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • G. Zavala Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • O. Gee Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • T. Pfeifer Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • E. Avalos-Loaeza Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • J. Davis Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • L. Galizzi Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA
  • B. Guerrero Packaging Department, Gadomski School of Engineering, Christian Brothers University, 650 E. Parkway South, Memphis, TN 38104, USA

Abstract

In a previous study, rice hulls were added during wet pulp making. The tensile strength of the rice-hull paperboard dropped as more rice hulls were added. With 100% rice-hull content, the paperboard crumbled with no tensile strength. In this preliminary study, there are two methods to improve the tensile strength of rice-hull paper board:

.Pressing Weight Study. Wet rice-hull paperboard was pressed while it dried. The tensile index of the paperboard with 50% rice-hull content increased at 0.0954 N-m/g per lb. of Pressing Weight.

Tensile Index (N-m/g) = 0.0954 * Pressing Weight (lb.) + 1.4717

.
Particle Size Study. Rice hulls were ground using a coffee grinder at Coarse and Extra Fine particle sizes. The tensile index of the paperboard with 50% rice-hull content was 32.5% higher when the Extra Find particle-size grinding was used compared to the Coarse particle-size grinding.

Keywords
Paperboard; Rice Hulls; Pressing; Bonding; Grain Size

Published
Jun 23, 2023
How to Cite
MALASRI, S. et al. Increasing Rice-Hull Paperboard Tensile Strength – A Preliminary Study. IESTOC, [S.l.], v. 21, n. 1, p. pp. 341-347, june 2023. Available at: <https://www.iestoc.org/index.php/conference/article/view/87>. Date accessed: 20 feb. 2024.
Track
Research Track

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