TY - JOUR
T1 - The potential of yeast as eco-filler for waterborne polyurethane and its reinforcing mechanism
AU - Shang, Songmin
AU - Chiu, Ka Lok
AU - Yuen, Chun Wah Marcus
AU - Jiang, Shou-xiang Kinor
AU - Hu, Enling
PY - 2014/8/21
Y1 - 2014/8/21
N2 - The potential of using yeast as the eco-filler for waterborne polyurethane (WPU) has been investigated in this research. The composites are synthesized by dispersing yeast into the 3-Triethoxysilyl Propylamine modified WPU solution followed by drying at 85 °C. The effects of yeast on the chemical structure, optical properties, thermal properties and mechanical properties of the polyurethane (PU)-yeast composites have been investigated. Yeast is well dispersed in the composite matrix and can crosslink with the WPU. Unlike many other PU composites, the PU-yeast composite has a higher clarity. It has a better thermal stability than the pure PU. Its stiffness, tensile strength and elongation at break are improved simultaneously because yeast can reinforce the composite with its cell wall and induce crazing during plastic deformation. As a result, yeast is an excellent eco-filler for the WPU and can be a low cost replacement for nano-cellulose.
AB - The potential of using yeast as the eco-filler for waterborne polyurethane (WPU) has been investigated in this research. The composites are synthesized by dispersing yeast into the 3-Triethoxysilyl Propylamine modified WPU solution followed by drying at 85 °C. The effects of yeast on the chemical structure, optical properties, thermal properties and mechanical properties of the polyurethane (PU)-yeast composites have been investigated. Yeast is well dispersed in the composite matrix and can crosslink with the WPU. Unlike many other PU composites, the PU-yeast composite has a higher clarity. It has a better thermal stability than the pure PU. Its stiffness, tensile strength and elongation at break are improved simultaneously because yeast can reinforce the composite with its cell wall and induce crazing during plastic deformation. As a result, yeast is an excellent eco-filler for the WPU and can be a low cost replacement for nano-cellulose.
KW - Crazing
KW - Polymer-matrix composites
KW - Polyurethane
KW - Stress/strain curves
KW - Yeast
UR - http://www.scopus.com/inward/record.url?scp=84908071791&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2014.08.019
DO - 10.1016/j.eurpolymj.2014.08.019
M3 - Journal article
SN - 0014-2999
VL - 742
SP - 6
EP - 13
JO - European Journal of Pharmacology
JF - European Journal of Pharmacology
IS - 1
ER -