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Journal of the American Oil Chemists' Society

, Volume 78, Issue 1, pp 37–41 | Cite as

Adhesion properties of soy protein with fiber cardboard

  • Zhikai Zhong
  • X. Susan Sun
  • Xiaohua Fang
  • Jo A. Ratto
Article

Abstract

Adhesion properties of soy protein isolate (SPI) on fiber cardboard and effects of press conditions, pre-pressing drying time, and protein concentrations on gluing strength were investigated. Shear strength increased as press time, press pressure, and/or press temperature increased. The effect of temperature on shear strength became more significant at high press pressure. The shear strength of the SPI adhesive on fiber cardboard decreased by 12–25% after water soaking. Shear strength increased as pre-pressing drying time increased and reached its maximal value at about 10 min. An SPI/water ratio of 12∶100 (w/w) gave the highest gluing strength. The specimens showed complete cohesive failure (fiber cardboard failure) except for soaked specimens pressed at low press temperature, low pressure, and short press time. Specimens pressed at 25°C and 2 MPa for 5 min with pre-pressing drying time of 10 min and an SPI/water ratio of 12∶100 (w/w) had T-peel strength and tensile bonding strength of 1.15 N/mm and 0.62 MPa, respectively, without water soaking, and 1.11 N/mm and 0.24 MPa, respectively, with water soaking.

Key Words

Adhesive strength fiber cardboard protein adhesives soy protein soy protein isolate water resistance wood adhesive 

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Copyright information

© AOCS Press 2001

Authors and Affiliations

  • Zhikai Zhong
    • 1
  • X. Susan Sun
    • 1
  • Xiaohua Fang
    • 1
  • Jo A. Ratto
    • 2
  1. 1.Department of Grain Science and IndustryKansas State UniversityManhattan
  2. 2.U.S. Army Soldier System CommandNatick

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