What we do:
Our laboratory is generally interested in the utilization of biomass solid wastes for adhesive and materials applications. We advance biomass utilization by using nanotechnology and simplified treatments. One recent endeavor is converting, without pre-purification, the lignin-rich residues of cellulosic biofuels production into a fully biobased, heat-curable wood adhesive. We also chemically modify and mechanically fibrillate wood biomass to obtain micron- and nano-sized fibers for use as functional or/and reinforcing materials. Throughout these research efforts, we examine the structure-performance relationship of the products pertaining to their processing parameters and service conditions.
Jul 9, 2019 – Dr. Tze presented a poster in the 6th Global Conference on Polymer and Composite Materials, Bangkok about enhancing wet stength property of water-soluble polymer using microfibrillated wood.
Jun 4, 2019 – Dr. Tze presented his research on "crosslinking and carbonization of electrospun lignosulfonate fiber" in the 2019 International Conference on Nanotechnology for Renewable Materials in Chiba, Japan. This research was in collaboration with National Taiwan University's Laboratry of Biocomposite Materials Science and Technology.
Mar 23, 2019 – The Tze lab published an article on the morphological and rheological behaviors of micro-nanofibrillated wood in Cellulose journal.
Oct 18, 2018 – Dr. Tze presented a talk in Taiwan's 107th Forest Resource Sustainability Development on the subject of utilizing saccharification waste for wood adhesive.
Feb 6, 2018 – Hafez successfully defended his dissertaion on the conversion and utilization of the hardwood solid waste stream of bio-alcohol (fermentable sugars) production for wood adhesive applications. Congratulations, Dr. Hafez!
Oct 30 & Nov 2, 2017 – Hafez presented a poster on conductive polymer composites and a talk on biobased adhesives in the 2017 AIChE Annual Meeting.
Jun 12, 2017 – Research of Dr. Tze's group was highlighted on the front cover page of the Journal of Applied Polymer Science, volume 134, issue 35 (http://onlinelibrary.wiley.com/doi/10.1002/app.v134.35/issuetoc).
Apr 20, 2017 – Fletcher presented a poster on “Crosslinking of chitosan-xylan films" at the 2017 UMN Undergraduate Symposium.
Sep 6, 2016 – BBE undergraduate student Fletcher Gilbertson joined the Tze group to work on chitosan-xylan bioplastic. He is funded by the UMN Undergraduate Research Opportunities Program (UROP). Welcome, Fletcher!
Oct 29-31, 2015 – Dr. Tze presented a talk on “Thermosetting adhesive precursor as a coproduct in enzymatic saccharification of woody biomass” at the 2015 USDA-NIFA AFRI Sustainable Bioenergy Annual Project Director Meeting.
Oct 5, 2015 – Dr. Tze hosted the research visit of Professor Guanben Du, Vice President of Southwest Forestry University, Kunming, China.
Jun 22-25, 2015 – Dr. Tze presented at the 2015 TAPPI International Conference on Nanotechnology for Renewable Materials with a poster titled: “Dye adsorption behavior of nanofibrillated cellulose materials”.
Jun 10-12, 2015 – Dr. Yang presented at the 69th Forest Products Society International Convention. He gave a talk on “Ultra-fine friction grinding of wood saccharification residues: Effects of energy input on the structural characteristics of the resulted nanofibers” from his research, and a poster on “Cure monitoring of fully biobased adhesive from saccharification residues” from group research of Tze’s lab.
Mar 22-26, 2015 – Hafez delivered a talk on “Curing behavior and bond performance of wood adhesive from enzymatic hydrolysis residues of lignocellulosic biomass” at the 249th American Chemical Society National Meeting and Exposition.
Jan 20, 2015 – The Tze group welcome BBE undergraduate student Katrina Hanson funded by the UMN Undergraduate Research Opportunities Program (UROP). Katrina will be working on nanocellulose-soybean oil composites.