TY - GEN
T1 - Controlled topology toughening epoxy via incorporation of partially reacted substructures
AU - Gao, Jian
AU - Palmese, Giuseppe R.
N1 - Funding Information:
Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement W911NF-12-2-0022. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.
Publisher Copyright:
Copyright 2019. Used by the Society of the Advancement of Material and Process Engineering with permission.
PY - 2019
Y1 - 2019
N2 - This work investigates a new strategy to improve the toughness of epoxy resins by rearranging the topological structure of cross-linked networks. Amine-cured epoxy networks was modified with monoamine functionalized partially reacted substructures (mPRS), synthesized by partially curing tetraglycidyl ether of diaminodiphenylmethane (TGDDM) and a monoamine polyetheramine (Jeffamine M1000). mPRS resins with different degrees of polymerization were added to a mixture of Diglycidyl Ether of Bisphenol A (DGEBA) and cured with Jeffamine D230. The addition of mPRS increased failure strain and energy dissipation. The mechanical properties could be adjusted by controlling the conversion and concentration of mPRS, resulting in yield strength 39 to 59 MPa and failure strain 15% to 44%. The improved ductility was also observed from compression testing. The observed differences came from the conversion of mPRS, which locally influenced the epoxy network topology and further influenced the mechanical behavior of the epoxy systems.
AB - This work investigates a new strategy to improve the toughness of epoxy resins by rearranging the topological structure of cross-linked networks. Amine-cured epoxy networks was modified with monoamine functionalized partially reacted substructures (mPRS), synthesized by partially curing tetraglycidyl ether of diaminodiphenylmethane (TGDDM) and a monoamine polyetheramine (Jeffamine M1000). mPRS resins with different degrees of polymerization were added to a mixture of Diglycidyl Ether of Bisphenol A (DGEBA) and cured with Jeffamine D230. The addition of mPRS increased failure strain and energy dissipation. The mechanical properties could be adjusted by controlling the conversion and concentration of mPRS, resulting in yield strength 39 to 59 MPa and failure strain 15% to 44%. The improved ductility was also observed from compression testing. The observed differences came from the conversion of mPRS, which locally influenced the epoxy network topology and further influenced the mechanical behavior of the epoxy systems.
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U2 - 10.33599/nasampe/s.19.1506
DO - 10.33599/nasampe/s.19.1506
M3 - Conference contribution
AN - SCOPUS:85068780203
T3 - International SAMPE Technical Conference
BT - SAMPE Conference and Exhibition
A2 - Ahlstrom, Kevin
A2 - Anderson, Jacob Preston
A2 - Beckwith, Scott
A2 - Becnel, Andrew Craig
A2 - Biermann, Paul Joseph
A2 - Buchholz, Matt
A2 - Cates, Elizabeth
A2 - Gardner, Brian
A2 - Harris, Jim
A2 - Knight, Michael J.
A2 - Reyes-Villanueva, German
A2 - Scarborough, Stephen E.
A2 - Sears, Phil
A2 - Thomas, James
A2 - Thostenson, Erik T.
PB - Soc. for the Advancement of Material and Process Engineering
T2 - SAMPE 2019 Conference and Exhibition
Y2 - 20 May 2019 through 23 May 2019
ER -